JP6517056B2 - Composite material surface treatment method, composite material surface treatment unit, bonding treatment unit - Google Patents

Description

  The present invention relates to a composite surface treatment method, a bonded structure, a composite surface treatment unit, and a bond processing unit.

  Fiber reinforced plastic composite material (Fiber reinforced plastic: hereinafter referred to as "composite material") containing fibers (for example, carbon fiber, glass fiber, ceramic fiber, aramid fiber, etc.), other composite materials, metals, plastics, etc. As a method of joining to a to-be-joined body, the mechanical fastening method of a bolt nut, a rivet, a fastener, etc. is performed, for example. In the fastening of bolt nuts and rivets, since drilling for processing is necessary, there are problems that the number of processing processes increases and the weight of the structure increases.

  Moreover, as a method of joining a composite material with a to-be-joined body, there exists a joining method using an adhesive agent. In the method of bonding a composite material to a body to be bonded using an adhesive, as a pretreatment for adhesion treatment, for example, a sanding treatment method in which the surface is treated with sand paper or the like, or a peel ply made of synthetic fiber fabric There is a method of performing a peel ply treatment method in which the uneven shape of a woven fabric is transferred onto the surface of a composite material (see Patent Document 1). Further, as a pretreatment, a plasma treatment method has been proposed in which the surface of the composite material is subjected to plasma treatment to activate the surface of the composite material (see Patent Document 2).

JP 2012-46850 A Japanese Patent Application Publication No. 2009-510207

  By performing pretreatment before bonding using an adhesive as described above, the adhesive strength of the bonding surface can be improved. Moreover, although the plasma processing is performed like the method of the patent document 2 and the adhesion surface of a composite material is activated, the mechanical property of the joined body of the components of a composite material can be improved, but it further joins. It is desired to improve the adhesive strength of the structure and to improve the stability of the bonding surface.

  In view of the above problems, the present invention provides a composite material surface treatment method, a bonded structure, a composite material surface treatment unit, and a bonding processing unit capable of improving the adhesive strength of the composite material and the stability of the bonding surface. It will be an issue.

  The invention of a composite material surface treatment method according to the present invention for solving the problems described above comprises: forming an irregular surface on the surface of a joint surface of the composite material; and forming the irregular surface on the joint surface on which the irregular surface is formed. And a plasma treatment step of performing atmospheric pressure plasma treatment to introduce a hydrophilic functional group on the surface of the uneven surface.

  Further, according to the present invention, in the uneven surface forming step, a first uneven surface forming step of forming a first uneven surface, and a second uneven portion having a smaller unevenness than the first uneven surface on the surface of the first uneven surface. And a second uneven surface forming step of forming a surface.

  Further, the present invention has a surface inspection step of inspecting the treated surface after performing the uneven surface forming treatment step, and as a result of surface inspection of the surface inspection step, it conforms to the processing standard set in advance. If it is determined, the process proceeds to the plasma processing step, and if it is determined as a result of the surface inspection in the surface inspection step that it does not meet the processing standard set in advance, the irregular surface forming processing step is performed again. Do.

  Further, the present invention is characterized in that the concavo-convex surface forming treatment step executes at least one treatment of laser treatment, blast treatment, etching treatment, or mold print treatment.

  The bonded structure of the present invention comprises a surface-treated composite material obtained by processing the bonding surface by the composite material surface treatment method, an adhesive layer formed of an adhesive applied to the bonding surface of the surface-treated composite material, and And a bonding material bonded to the surface-treated composite material by a bonding layer.

  Further, the present invention is characterized in that the material to be joined is a surface-treated composite material in which a joining surface is processed by a composite material surface treatment method.

  The composite material surface treatment unit according to the present invention comprises an irregular surface formation processing unit that performs uneven surface formation processing on a bonded surface of the composite material, and an atmospheric pressure plasma processing unit that performs atmospheric pressure plasma processing on the uneven surface. And the like.

  Further, according to the present invention, the uneven surface forming unit includes a first uneven surface forming unit forming a first uneven surface, and a second uneven portion having a smaller unevenness than the first uneven surface on the surface of the first uneven surface. And a second uneven surface forming unit that forms a surface.

  The present invention further includes a surface inspection unit that inspects the treated surface after processing by the uneven surface formation processing unit, and as a result of surface inspection by the surface inspection unit, matches the processing standard set in advance. If it is determined that the process proceeds to the atmospheric pressure plasma processing unit, and if it is determined as a result of the surface inspection in the surface inspection unit that the irregular surface forming processing unit does not meet the processing standard set in advance, the uneven surface forming processing unit It is characterized by performing again.

  Further, the present invention is characterized in that the concavo-convex surface forming processing unit executes at least one of laser processing and blast processing.

  In the bonding processing unit according to the present invention, an uneven surface forming processing unit that performs uneven surface forming processing on a bonding surface of a composite material, and a plasma processing unit that performs plasma processing on the bonding surface on which the uneven surface is formed; And a bonding device for applying an adhesive to the plasma-treated surface of the surface-treated composite material subjected to the plasma treatment, and bonding the surface-treated composite material and the body to be bonded.

  Further, according to the present invention, the uneven surface forming unit includes a first uneven surface forming unit forming a first uneven surface, and a second uneven portion having a smaller unevenness than the first uneven surface on the surface of the first uneven surface. And a second uneven surface forming unit that forms a surface.

  According to the present invention, the irregular surface forming step of forming an irregular surface on the surface of the joint surface of the composite material, and the atmospheric pressure plasma treatment on the joint surface having the irregular surface formed thereon, the surface of the irregular surface By forming a hydrophilic functional group on the bonding surface of the composite material, and then introducing a hydrophilic functional group by an atmospheric pressure plasma treatment. By doing this, the bonding strength can be improved by a combination of the anchor effect and the hydrogen bonding action of the hydrophilic functional group.

FIG. 1 is a diagram illustrating an example of a bonding processing unit according to a first embodiment. FIG. 2 is a process diagram of a composite and a composite structure obtained by the composite surface treatment method according to the first embodiment. FIG. 3 is a perspective view showing an example of the surface treatment composite. FIG. 4 is a diagram showing an example of formation of three-dimensionally continuous peaks and valleys of the surface treatment composite material. FIG. 5 is a diagram showing an example of formation of three-dimensionally continuous peaks and valleys of the surface treatment composite material. FIG. 6 is a diagram showing an example of surface analysis. FIG. 7 is a view showing the reduction of variation in plasma treatment and conventional surface treatment. FIG. 8 is a view showing a state of propagation in the case where there is a crack in the bonded structure according to the present example. FIG. 9 is a view showing a state of propagation in the case where there is a crack in the bonded structure according to the prior art. FIG. 10 is a diagram illustrating an example of another surface treatment unit according to the second embodiment. FIG. 11 is a schematic cross-sectional view of a surface-treated composite obtained by the method of treating a surface of a composite according to the second embodiment. FIG. 12 is a schematic cross-sectional view of a bonded structure obtained by the composite material surface treatment method according to the second embodiment. FIG. 13 is a diagram illustrating an example of the process of the composite material process according to the third embodiment including the inspection process.

  The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. The present invention is not limited to the embodiments, and in the case where there are a plurality of embodiments, the present invention also includes those configured by combining the respective embodiments.

  FIG. 1 is a diagram illustrating an example of a bonding processing unit according to a first embodiment. As shown in FIG. 1, the bonding processing unit 110 that performs surface processing and bonding processing of the composite material according to the present embodiment includes the uneven surface forming processing unit 101, the atmospheric pressure plasma processing unit 102, and the bonding apparatus 103. Prepare. The concavo-convex surface forming processing unit 101 performs processing for forming a concavo-convex surface on a processing target surface of a processing target portion of the composite material 11 to form a concavo-convex surface. As the concavo-convex surface forming processing unit 101, a laser processing apparatus or a blast processing apparatus can be used. For example, a laser processing apparatus irradiates a laser beam to the surface to be processed to form an uneven surface on the surface of the surface to be processed.

  Here, in order to form the uneven surface on the surface of the processing target surface, in addition to the laser processing apparatus, for example, a blasting apparatus which strikes a blast material to form the uneven surface, for example, etching which forms the uneven surface by the etching solution. A processing apparatus, for example, a mold print processing apparatus or the like that forms an uneven surface using imprint lithography in which a wafer having a microstructure manufactured by photolithography is incorporated on a composite material molding mold may be used alone or in combination.

  The atmospheric pressure plasma processing unit 102 performs plasma processing on the processing target surface of the processing target portion of the composite material 11 by atmospheric pressure plasma. The atmospheric pressure plasma processing unit 102 irradiates the atmospheric pressure plasma beam on the surface to be processed, introduces a hydrophilic functional group on the surface of the surface to be processed, and creates the surface-treated composite material 10A. Specifically, the atmospheric pressure plasma processing unit 102 can remove the organic substance on the surface to be processed and introduce a hydrophilic group such as a carbonyl group or a carboxyl group on the surface. The atmospheric pressure plasma processing unit 102 can use a known atmospheric pressure plasma processing apparatus that generates plasma under atmospheric pressure. The atmospheric pressure plasma processing unit 102 generates plasma by, for example, glow discharge, corona discharge, dielectric barrier discharge, RF discharge, microwave discharge, arc discharge, etc., using air, oxygen, etc. as a reactive gas. .

  The bonding apparatus 103 applies an adhesive to the plasma-treated surface of the surface-treated composite material that has been subjected to atmospheric pressure plasma treatment in the atmospheric pressure plasma processing unit 102, and bonds the object to be bonded to the surface-treated composite material. Bonding device 103 has an adhesive application part which applies an adhesive to surface treatment composite material 10A, a bonding part which pastes a surface treatment composite material which applied an adhesive, and a material to be joined.

  The bonding processing unit 110 according to the present embodiment uses the uneven surface forming processing unit 101 to form an uneven surface on the bonding surface of the composite material. Thereafter, the treated surface on which the uneven surface is formed is subjected to plasma treatment by atmospheric pressure plasma by the atmospheric pressure plasma treatment unit 102, thereby introducing a hydrophilic functional group to form the surface treatment composite material 10A. Thereafter, an adhesive is used to form an adhesive layer on the surface to which the hydrophilic functional group has been introduced by the bonding apparatus 103. After that, a bonding process is performed with the material to be joined. Thus, the surface-treated composite material 10A, an adhesive layer formed of an adhesive applied to the surface-treated surface of the surface-treated composite material 10A, and a bonding material integrally bonded with the bonding material bonded by the adhesive layer Create a structure 20A.

  Next, an example of a composite material surface treatment method using a surface treatment unit will be described using FIG. FIG. 2 is a process diagram of a composite and a composite structure obtained by the composite surface treatment method according to the first embodiment.

  In the composite material surface treatment method, as shown in FIG. 2, the bonding surface 11 a which is the surface of the composite material 11 is treated. The bonding surface 11 a of the composite material 11 is subjected to an uneven surface forming process to form the uneven surface, and the uneven surface 14 formed by the many concave portions 12 and the many convex portions 13 is formed in the bonding surface 11 a of the composite material 11 ( First step (S-11)). Here, the bonding surface of the composite material refers to a surface to which an adhesive is applied when bonding the composite material 11 and the bonding material 21 with an adhesive. Specifically, the uneven surface forming unit 101 forms the uneven surface 14 using, for example, a laser processing unit. Hereinafter, an example of the uneven surface 14 will be described using FIGS. 3 to 5.

  FIG. 3 is a perspective view showing an example of the surface treatment composite. The uneven surface forming unit 101 scans, for example, in a fixed direction while irradiating a laser beam, thereby forming the concave portion (peak portion) 13 and the convex portion (valley portion) 12 in one direction as illustrated in FIG. 3, for example. The uneven surface 14 is formed. Here, the height of the ridges and valleys is not particularly limited, but is preferably, for example, 1 μm or more in order to exert an anchor effect.

  Further, the concavo-convex surface forming processing unit 101 may form the concavo-convex surface 14 in which three-dimensionally continuous peaks and valleys are formed on the bonding surface 11 a by sporadically irradiating the laser beam. In the blasting process, for example, a blasting material such as metal or sand is blasted from the blasting apparatus onto the bonding surface 11a to form innumerable uneven surfaces 14 on the surface of the bonding surface. The blasting apparatus mixes the blast material with compressed air and sprays it on the treated surface to form the uneven surface 14 on the bonding surface. Moreover, the uneven | corrugated surface 14 in which the three-dimensionally continuous peak-and-valley was formed in the joint surface 11a is formed of the blast process.

  FIGS. 4 and 5 are diagrams showing an example of formation of three-dimensionally continuous peaks and valleys of the surface treatment composite. FIG. 4 shows the first row of convex portions (peak portions) 13-1, 13-2, 13-3 and valley portions (concave portions) 12-1, when the uneven surface 14 is taken on the A-A cross section. 12-2 means that the second row of convex portions (peak portions) 13-4, 13-5, 13-6 on the back side and the valley portions (concave portions) 12-3, 12-4 overlap with each other. It is formed. FIG. 5: makes the uneven surface 14 a BB cross section, convex part (peak part) 13-1, 13-2, 13-3 and valley part (concave part) 12-1 of the 1st line of near side, 12-2 is offset from the second row of projections (peaks) 13-4, 13-5 and valleys (recesses) 12-3, 12-4, 12-5 on the back side. It is formed.

  Next, atmospheric pressure plasma treatment is performed on the bonding surface on which the uneven surface 14 is formed, and a hydrophilic functional group is introduced on the surface of the uneven surface 14 to form a hydrophilic functional group introduced portion 19. Thereby, surface treatment composite material 10A by which hydrophilic functional group introduction part 19 was introduced in the surface of concavo-convex field 14 is obtained (the 2nd process (S-12)).

  Next, an adhesive is applied to the bonding surface of the surface-treated composite 10A obtained by processing the bonding surface 11a to form an adhesive layer 22. Thereafter, the bonding material 21 and the surface-treated composite 10A are formed of the adhesive layer 22. Bonding (third step (S-13)). As the adhesive, for example, an epoxy adhesive can be used, but the present invention is not limited thereto. Thus, the bonded structure 20A is obtained through the adhesive layer 22 in which the surface-treated composite material 10A and the material to be bonded 21 are bonded.

  In the composite material surface treatment method, an adhesive is applied by setting the uneven surface 14 of the rough surface of the concave and convex portions 12 and 13 at the time of bonding in the third step (S-13). Anchor effect at the time of

  Further, the bonding surface on which the uneven surface 14 is formed can be suitably introduced to the surface of the uneven surface 14 as a hydrophilic functional group by irradiating the atmospheric pressure plasma beam by the atmospheric pressure plasma processing unit. FIG. 6 is a diagram showing an example of surface analysis. FIG. 6 shows the analysis results of ESCA (Electron Spectroscopy for Chemical Analysis), in which the solid line shows the case of atmospheric pressure plasma treatment and the broken line shows the case of the peel-ply method of the conventional treatment. As shown in FIG. 6, hydrophilic functional groups containing oxygen such as “C—O”, “C = O”, “COO” etc. (eg, hydroxyl group, carbonyl group, carboxyl group etc.) by atmospheric pressure plasma irradiation The rate of binding can be increased.

  FIG. 7 is a view showing the reduction of adhesion strength and variation in plasma treatment and conventional surface treatment. As shown in FIG. 7, it is confirmed that the adhesion strength is higher and the variation is smaller in the plasma treatment than in the peel ply method and the sanding method. From the above, it can be seen that the composite surface treatment method can improve the adhesive strength of the composite and the stability of the bonding surface.

  FIG. 8 is a view showing a state of propagation in the case where there is a crack in the bonded structure according to the present example. FIG. 9 is a view showing a state of propagation in the case where there is a crack in the bonded structure according to the prior art. As shown in FIG. 8, by forming the convex-concave uneven surface 14 as in the present embodiment, the convex portion 13 which is a peak portion is formed inside the adhesive layer 22 of the bonded structure 20A. When, for example, a crack 31 is formed from the end face of the adhesive layer 22, the presence of the convex portion 13 makes it possible to form a blocking portion 33 that stops the propagation 32 of the crack 31 and exhibits a so-called crack arrester effect. it can. Therefore, even when, for example, a crack is formed at the end portion of the adhesive layer 22, its propagation can be blocked by the presence of the convex portion 13, so that the progress of the crack can be suppressed.

  On the other hand, when no ridges are formed on the joint surface as in the prior art, as shown in FIG. 9, the crack propagation 32 is caused by the crack 31 formed at the end of the adhesive layer 22. As a result, the crack arrester effect can not be exhibited.

  In order to prevent the propagation of the crack, it is more preferable to form a three-dimensional uneven shape. For example, by using a three-dimensional continuous peak-and-valley asperity shape as shown in FIG. 5, it is possible to cope with cracks propagating from various directions.

  As described above, according to the present embodiment, the irregular surface forming step of forming the irregular surface on the surface of the joint surface of the composite material, and the atmospheric pressure plasma treatment on the joint surface on which the irregular surface is formed, By performing a plasma treatment step of introducing a hydrophilic functional group on the surface of the surface, an uneven surface which exhibits an anchoring effect is formed on the bonding surface of the composite material, and then hydrophilic functional group is formed by atmospheric pressure plasma treatment. By introducing a group, the bonding strength can be improved by a combination of the anchor effect and the hydrogen bonding action by the hydrophilic functional group. As a result, due to the improvement in adhesive strength and stability of the joined structure, for example, the installation of the number of fasteners can be reduced, and structural weight reduction can be achieved.

  Although the present embodiment is described using an example in which the composite material 11 is joined to another composite material or the to-be-joined material 21 such as metal or plastic, in the bonding structure of the present invention, the composite materials are joined to each other. You may do so. Under the present circumstances, since the further improvement of joint strength can be aimed at by making both surfaces of the joint surface of composite material 11 comrades into the surface treatment composite material obtained by the composite material surface treatment method mentioned above, it is more preferable.

  FIG. 10 is a diagram illustrating an example of another surface treatment unit according to the second embodiment. The surface treatment unit 100 shown in FIG. 10 has a concavo-convex surface formation processing section 101, a first concavo-convex surface formation processing section 101A that forms the first concavo-convex surface, and a concavo-convex portion on the surface of the first concavo-convex surface And a second uneven surface forming unit 101B that forms a small second uneven surface. For example, a laser irradiation apparatus that irradiates lasers with different diameters or a blast apparatus that irradiates blast materials with different diameters can be used for the first uneven surface formation processing unit 101A and the second uneven surface formation processing unit 101B. For example, in the case of using a blasting apparatus, a blasting apparatus with a large diameter is sprayed from the blasting apparatus to form a first uneven surface on which a large mountain concave portion and a convex portion are formed on the bonding surface. Next, a small-diameter blast material may be sprayed from a blasting device to form a second uneven surface on which fine recesses and fine protrusions are formed on the surface of the first uneven surface. Also, two different types of uneven surfaces may be formed by combining a blasting apparatus and a laser processing apparatus. For example, a laser processing apparatus is used to form a first uneven surface on which large concave and convex portions are formed. It is also possible to spray a small-diameter blast material from the blasting device on the first uneven surface, and to form a second uneven surface in which fine recesses and fine protrusions are formed on the surface of the first uneven surface.

  FIG. 11 is a schematic cross-sectional view of a surface-treated composite obtained by the method of treating a surface of a composite according to the second embodiment. FIG. 12 is a schematic cross-sectional view of a bonded structure obtained by the composite material surface treatment method according to the second embodiment. As shown in FIG. 11, in this embodiment, a first concavo-convex surface forming step of forming a first concavo-convex surface 14A composed of large crests 12 and convex parts 13 is performed, and then the first concavo-convex surface formed. A second concavo-convex surface forming step of forming a second concavo-convex surface 17 composed of fine concave parts 15 and fine convex parts 16 smaller than the first concavo-convex surface 14A on the surface of 14A; The material 10B is obtained.

  Here, the size of the unevenness formed on the bonding surface 11a side is not particularly limited. For example, the height of the valleys of the large first uneven surface 14A is preferably, for example, 1 μm or more, It is preferable that the height of the valley of the small 2nd uneven surface 17 shall be 1 micrometer or less, for example, but this invention is not limited to this.

  By using the surface treated composite material 10B having the two uneven surfaces of the first uneven surface 14A and the second uneven surface 17, the anchor effect of the adhesive is further exhibited than the surface treated composite material 10A of Example 1. can do.

  After forming the two different types of the first uneven surface and the second uneven surface, atmospheric pressure plasma treatment is performed from the atmospheric pressure plasma processing apparatus in the same manner as in Example 1, and the machined surface of the first uneven surface and the second uneven surface Introduce a hydrophilic functional group. In addition, illustration of the hydrophilic functional group introduce | transducing part is abbreviate | omitted in FIG.

  Thereafter, as shown in FIG. 12, an adhesive is applied to the bonding surface of the surface-treated composite material 10B obtained by the composite material surface treatment method of Example 2 to form an adhesive layer 22, and then the adhesive layer 22 is formed. The bonding material 21 and the surface-treated composite material 10B are bonded to obtain a bonded structure 20B.

  As described above, according to the present embodiment, the anchor is formed by processing the first uneven surface and the second uneven surface having different sizes in the uneven surface forming step of forming the uneven surface on the surface of the bonding surface of the composite material. The effect can be further exhibited, and the bonding strength can be further improved as compared with the first embodiment. As a result, by improving the adhesive strength and stability of the bonded structure, for example, the number of fasteners can be reduced, and structural weight reduction can be achieved.

  In addition, by forming the third uneven surface having an uneven surface that is finer than the uneven surface by this atmospheric pressure plasma processing, the anchor effect is further improved by the uneven surface having three different sizes. You may

  The surface treatment method may inspect the treated surface. The steps of the composite surface treatment and the bonding treatment having the surface inspection step will be described with reference to FIG. FIG. 13 is a diagram illustrating an example of the process of the composite material process according to the third embodiment including the inspection process. As shown in FIG. 13, in the composite material processing step, first, laser processing is performed on the bonding surface of the composite material by a laser processing apparatus to form an uneven surface having concave portions 12 and convex portions 13 (S-21) And the surface inspection step (S-22) of inspecting the treated surface after processing the irregular surface in the laser treatment step, and the processing standard set in advance as a result of the surface inspection in the surface inspection step (S-21) Test result judgment process (S-23) to judge whether or not it conforms to the above, surface inspection result, it conforms to the treatment standard, and if it is judged that the treatment is good (Yes), the atmospheric pressure plasma treatment is performed An atmospheric pressure plasma treatment step (S-24), and a step of performing the laser treatment step (S-21) again when it is determined that the result of the inspection does not meet the preset treatment standard (No). Have. After the hydrophilic functional group is introduced in the atmospheric pressure plasma treatment step (S-24), the process proceeds to the bonding step (S-25), and the surface-treated composite material is bonded to the body to be bonded with an adhesive. Here, in the surface inspection process, data from the surface inspection apparatus is sent to an analysis unit (not shown) and analyzed, and it is determined by the analysis whether or not the processing standard set in advance is met.

  The surface inspection can be performed by, for example, microscopic inspection using a laser microscope or the like, but is not limited thereto. As a result of this inspection, it is possible to proceed to atmospheric pressure plasma processing when the processing standard is met and it is judged that the processing is good (Yes), therefore it is confirmed that the concavo-convex surface is always formed on the constant standard. At the same time, atmospheric pressure plasma treatment is performed, and the bonding strength on a certain basis can be secured.

  That is, for example, when there is no inspection step with a microscope, it can not be determined whether or not the uneven surface having the anchor effect of the predetermined reference is formed, so that the anchor effect may vary, but the inspection step is provided. Thus, atmospheric pressure plasma treatment can be performed after it is confirmed in advance that the surface is a concavo-convex surface on which a fixed reference anchor effect is assumed, and a surface treated composite material exhibiting a stable anchor effect can be obtained.

  Further, the inspection accuracy can be enhanced by increasing the inspection frequency. In addition, it is possible to prevent excessive surface shaving. As a result, it is possible to always perform stable formation processing of the concavo-convex surface, and it becomes possible to form concavo-convex surface which exerts a predetermined anchoring effect.

  This composite surface treatment unit can be automated and can be incorporated as another step in the current production process. For automation, the operation jig is mounted on a movable or stationary robot or the like, and the processing is selectively performed. Automation may be performed according to a program for selective processing by a control device (not shown) to perform stable processing.

DESCRIPTION OF SYMBOLS 10A, 10B Surface treatment composite material 11 Composite material 11a Bonding surface 12 Concave part 13 Convex part 14 Irregular surface 14A 1st uneven surface 15 Fine recessed part 16 Fine convex part 17 2nd uneven surface 20A, 20B Bonding structure 21 A joint material 22 adhesive layer 100 surface treatment unit 101 uneven surface forming unit 102 atmospheric pressure plasma treatment unit 103 bonding apparatus 110 bonding unit

Claims (7)

An irregular surface forming process for forming an irregular surface on the surface of the joint surface of the composite material;
Atmospheric plasma processing is performed on the bonding surface on which the uneven surface is formed, and a plasma processing step of introducing a hydrophilic functional group on the surface of the uneven surface is provided .
The uneven surface forming step includes a first uneven surface forming step of forming a first uneven surface, and a second uneven surface forming unevenness smaller than the first uneven surface on a surface of the first uneven surface. An uneven surface forming step, and a composite material surface treatment method. After performing the above-mentioned concavo-convex surface formation treatment process, it has the surface inspection process which inspects the processing surface,
As a result of the surface inspection in the surface inspection step, when it is determined that the processing standard set in advance is met, the process proceeds to the plasma processing step;
The surface inspection step surface inspection results, when it is determined that does not meet the treatment criteria set in advance, the composite surface treatment according to claim 1, characterized in that the uneven surface forming process again Method. The uneven surface forming process is, laser processing, blasting, etching, or the composite surface treatment method according to claim 1 or 2, characterized in that performing at least one process of the mold printing process. An uneven surface forming processing unit that performs an uneven surface forming process on a bonding surface of a composite material,
And an atmospheric pressure plasma processing unit for performing atmospheric pressure plasma processing on the uneven surface .
The uneven surface forming unit forms a first uneven surface forming unit that forms a first uneven surface, and a second uneven surface that has a smaller unevenness than the first uneven surface on the surface of the first uneven surface. 2. A composite material surface treatment unit comprising: It has a surface inspection part which inspects a processing surface after processing in the concavo-convex surface formation processing part,
As a result of the surface inspection in the surface inspection unit, when it is determined that the processing standard set in advance is met, the process proceeds to the atmospheric pressure plasma processing unit,
The composite material surface according to claim 4 , wherein the uneven surface formation processing unit is performed again when it is determined that the surface inspection unit does not meet the processing standard set in advance as a result of the surface inspection in the surface inspection unit. Processing unit. The composite material surface treatment unit according to claim 4 or 5 , wherein the concavo-convex surface formation processing unit executes at least one of laser treatment and blast treatment. An uneven surface forming processing unit that performs an uneven surface forming process on a bonding surface of a composite material,
A plasma processing unit that performs plasma processing on the bonding surface on which the uneven surface is formed;
An adhesive is applied to the plasma-treated surface of the surface-treated composite material subjected to the plasma treatment, and a bonding apparatus for bonding the surface-treated composite material and the object is provided .
The uneven surface forming unit forms a first uneven surface forming unit that forms a first uneven surface, and a second uneven surface that has a smaller unevenness than the first uneven surface on the surface of the first uneven surface. 2) A bonding processing unit comprising:

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