CN104277761A - Sealant for sensor inside refrigerator and preparation method of sealant - Google Patents
Sealant for sensor inside refrigerator and preparation method of sealant Download PDFInfo
- Publication number
- CN104277761A CN104277761A CN201410491761.1A CN201410491761A CN104277761A CN 104277761 A CN104277761 A CN 104277761A CN 201410491761 A CN201410491761 A CN 201410491761A CN 104277761 A CN104277761 A CN 104277761A
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- Prior art keywords
- parts
- agent
- sealant
- carbon black
- catalyzer
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000565 sealant Substances 0.000 title abstract 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 62
- 239000006229 carbon black Substances 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 21
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 229920002545 silicone oil Polymers 0.000 claims abstract description 21
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000004902 Softening Agent Substances 0.000 claims description 20
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 20
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 20
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 20
- 229920002050 silicone resin Polymers 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- 230000032683 aging Effects 0.000 abstract description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- -1 polymethylvinylsiloxane Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of sensors and discloses a sealant for a sensor inside a refrigerator and a preparation method of the sealant. The sealant for the sensor inside the refrigerator comprises the following raw materials in parts by weight: 90-110 parts of polymethylvinylsiloxane, 20-35 parts of organic silicon resin, 3-7 parts of carbon black, 4-8 parts of toluene diisocyanate, 3-8 parts of hydrogen-containing silicone oil plasticizer, 1-5 parts of catalyst, 3-5 parts of vulcanizing agent, 1-5 parts of crosslinking agent and 1-5 parts of curing agent. The sealant for the sensor can be well adhered to a shell and is good in humidity resistance and elasticity, easy to form, stable in molecular structure, aging-resistant, environment-friendly and nontoxic.
Description
Technical field
The present invention relates to sensor technical field, refer more particularly to a kind of refrigerator inside sensor seal gum and preparation method thereof.
Background technology
Sealing is that operation is built in the pass in sensor production process, and the quality of sealing effectiveness directly has influence on performance index and the permanent stability of sensor.Especially in today that market competition is day by day fierce, quality product is exactly the life of enterprise, and sensor is no exception.Carrying out the seal operation of sensor, is one of important step improving sensor mass.Sealing material in sensor production process is different, and the sealing effectiveness played on a sensor is also different, also has impact in various degree to the performance index of sensor.Adopt irrational sealing technology to carry out sensor guard sealing, the sealing property of seal gum probably lost efficacy, and also probably affected the permanent stability of sensor.Want the exclusion seal effect ensureing and improve sensor, select suitable excellent seal gum to be one of key.If the sealing effectiveness of seal gum itself is bad, the sealing technology both having made employing best is also of no avail to the sealing property of sensor.For ensureing by the safety and reliability of seal sensor, harsher to the requirement of seal gum, require, by between the device of embedding and housing, be there is good bonding, the impact of wet and heat ageing resistant, cold-hot, UV resistant long-term irradiation, good insulation preformance.
Summary of the invention
The object of the present invention is to provide a kind of refrigerator inside sensor seal gum and preparation method thereof, and have good bonding between housing, humidity resistance is good, is easily shaped, good springiness.
For achieving the above object, the present invention is by the following technical solutions:
A kind of refrigerator inside sensor seal gum, comprise the raw material of following weight part: Polymethyl methacrylate 90-110 parts, silicone resin 20-35 parts, carbon black 3-7 parts, tolylene diisocyanate 4-8 parts, 3-8 parts, containing hydrogen silicone oil softening agent, catalyzer 1-5 parts, vulcanizing agent 3-5 parts, linking agent 1-5 parts, 1-5 parts, solidifying agent.
Preferably, described refrigerator inside sensor seal gum comprises the raw material of following weight part: Polymethyl methacrylate 98 parts, silicone resin 24 parts, carbon black 5.5 parts, tolylene diisocyanate 6 parts, 4 parts, containing hydrogen silicone oil softening agent, catalyzer 2 parts, vulcanizing agent 4 parts, linking agent 2 parts, 3 parts, solidifying agent.
Preferably, described refrigerator inside sensor seal gum comprises the raw material of following weight part: Polymethyl methacrylate 105 parts, silicone resin 30 parts, carbon black 6 parts, tolylene diisocyanate 5 parts, 5 parts, containing hydrogen silicone oil softening agent, catalyzer 3 parts, vulcanizing agent 3-5 parts, linking agent 3.5 parts, 3 parts, solidifying agent.
Preferably, described refrigerator inside sensor seal gum comprises the raw material of following weight part: Polymethyl methacrylate 100 parts, silicone resin 28 parts, carbon black 4.5 parts, tolylene diisocyanate 4.5 parts, 3.5 parts, containing hydrogen silicone oil softening agent, catalyzer 2.5 parts, vulcanizing agent 4.5 parts, linking agent 4 parts, 4 parts, solidifying agent.
Present invention also offers a kind of preparation method of refrigerator inside sensor seal gum, comprise the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 70-75 DEG C, be incubated 2-2.5 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 50-60 DEG C, heat 2-2.5 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
The present invention compared with prior art, has the following advantages: have good bonding between sensor seal gum of the present invention and housing, humidity resistance is good, is easily shaped, good springiness, and molecular structure stabilized is ageing-resistant, environment-protecting asepsis.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is further described in detail.
Embodiment one:
A kind of refrigerator inside sensor seal gum, comprises the raw material of following weight part: Polymethyl methacrylate 110 parts, silicone resin 35 parts, carbon black 7 parts, tolylene diisocyanate 8 parts, 8 parts, containing hydrogen silicone oil softening agent, catalyzer 5 parts, vulcanizing agent 5 parts, linking agent 5 parts, 5 parts, solidifying agent.
The preparation method of described refrigerator inside sensor seal gum comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 75 DEG C, be incubated 2.5 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 60 DEG C, heat 2.5 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
Embodiment two:
A kind of refrigerator inside sensor seal gum, comprises the raw material of following weight part: Polymethyl methacrylate 90 parts, silicone resin 20 parts, carbon black 3 parts, tolylene diisocyanate 4 parts, 3 parts, containing hydrogen silicone oil softening agent, catalyzer 1 part, vulcanizing agent 3 parts, linking agent 1 part, 1 part, solidifying agent.
The preparation method of described refrigerator inside sensor seal gum comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 70 DEG C, be incubated 2 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 50 DEG C, heat 2 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
Embodiment three:
A kind of refrigerator inside sensor seal gum, comprises the raw material of following weight part: Polymethyl methacrylate 98 parts, silicone resin 24 parts, carbon black 5.5 parts, tolylene diisocyanate 6 parts, 4 parts, containing hydrogen silicone oil softening agent, catalyzer 2 parts, vulcanizing agent 4 parts, linking agent 2 parts, 3 parts, solidifying agent.
The preparation method of described refrigerator inside sensor seal gum comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 73 DEG C, be incubated 2.2 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 55 DEG C, heat 2.2 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
Embodiment four:
A kind of refrigerator inside sensor seal gum, comprises the raw material of following weight part: Polymethyl methacrylate 105 parts, silicone resin 30 parts, carbon black 6 parts, tolylene diisocyanate 5 parts, 5 parts, containing hydrogen silicone oil softening agent, catalyzer 3 parts, vulcanizing agent 3-5 parts, linking agent 3.5 parts, 3 parts, solidifying agent.
The preparation method of described refrigerator inside sensor seal gum comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 74 DEG C, be incubated 2.4 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 58 DEG C, heat 2.4 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
Embodiment five:
A kind of refrigerator inside sensor seal gum, comprise the raw material of following weight part: Polymethyl methacrylate 100 parts, silicone resin 28 parts, carbon black 4.5 parts, tolylene diisocyanate 4.5 parts, 3.5 parts, containing hydrogen silicone oil softening agent, catalyzer 2.5 parts, vulcanizing agent 4.5 parts, linking agent 4 parts, 4 parts, solidifying agent.
The preparation method of described refrigerator inside sensor seal gum comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 73 DEG C, be incubated 2.3 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 55 DEG C, heat 2.3 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a refrigerator inside sensor seal gum, it is characterized in that, comprise the raw material of following weight part: Polymethyl methacrylate 90-110 parts, silicone resin 20-35 parts, carbon black 3-7 parts, tolylene diisocyanate 4-8 parts, 3-8 parts, containing hydrogen silicone oil softening agent, catalyzer 1-5 parts, vulcanizing agent 3-5 parts, linking agent 1-5 parts, 1-5 parts, solidifying agent.
2. refrigerator inside sensor seal gum according to claim 1, it is characterized in that, comprise the raw material of following weight part: Polymethyl methacrylate 98 parts, silicone resin 24 parts, carbon black 5.5 parts, tolylene diisocyanate 6 parts, 4 parts, containing hydrogen silicone oil softening agent, catalyzer 2 parts, vulcanizing agent 4 parts, linking agent 2 parts, 3 parts, solidifying agent.
3. refrigerator inside sensor seal gum according to claim 1, it is characterized in that, comprise the raw material of following weight part: Polymethyl methacrylate 105 parts, silicone resin 30 parts, carbon black 6 parts, tolylene diisocyanate 5 parts, 5 parts, containing hydrogen silicone oil softening agent, catalyzer 3 parts, vulcanizing agent 3-5 parts, linking agent 3.5 parts, 3 parts, solidifying agent.
4. refrigerator inside sensor seal gum according to claim 1, it is characterized in that, comprise the raw material of following weight part: Polymethyl methacrylate 100 parts, silicone resin 28 parts, carbon black 4.5 parts, tolylene diisocyanate 4.5 parts, 3.5 parts, containing hydrogen silicone oil softening agent, catalyzer 2.5 parts, vulcanizing agent 4.5 parts, linking agent 4 parts, 4 parts, solidifying agent.
5. a preparation method for the refrigerator inside sensor seal gum that one of Claims 1-4 is described, it is characterized in that, it comprises the following steps:
(1) by described parts by weight, described Polymethyl methacrylate and tolylene diisocyanate are added in reactor, stir and be heated to 70-75 DEG C, be incubated 2-2.5 hours, obtain solution A;
(2) by described parts by weight, by described silicone resin, carbon black, containing hydrogen silicone oil softening agent, catalyzer, vulcanizing agent, linking agent and solidifying agent mixing and stirring, be warming up to 50-60 DEG C, heat 2-2.5 hours, obtain B solution;
(3) B solution of the solution A of step (1) gained with step (2) gained is mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491761.1A CN104277761B (en) | 2014-09-23 | 2014-09-23 | A kind of refrigerator inside sensor fluid sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410491761.1A CN104277761B (en) | 2014-09-23 | 2014-09-23 | A kind of refrigerator inside sensor fluid sealant and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104277761A true CN104277761A (en) | 2015-01-14 |
| CN104277761B CN104277761B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410491761.1A Active CN104277761B (en) | 2014-09-23 | 2014-09-23 | A kind of refrigerator inside sensor fluid sealant and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104277761B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030049465A1 (en) * | 2001-07-02 | 2003-03-13 | General Electric Company | Curable silicone adhesive compositions |
| CN101665622A (en) * | 2009-09-28 | 2010-03-10 | 陕西电力科学研究院 | Preparation method of single-component room-temperature vulcanized silicone rubber |
| CN103122149A (en) * | 2013-03-18 | 2013-05-29 | 株洲时代新材料科技股份有限公司 | Silicon rubber with high refractive index and high transparency for optical encapsulation and preparation method thereof |
-
2014
- 2014-09-23 CN CN201410491761.1A patent/CN104277761B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030049465A1 (en) * | 2001-07-02 | 2003-03-13 | General Electric Company | Curable silicone adhesive compositions |
| CN101665622A (en) * | 2009-09-28 | 2010-03-10 | 陕西电力科学研究院 | Preparation method of single-component room-temperature vulcanized silicone rubber |
| CN103122149A (en) * | 2013-03-18 | 2013-05-29 | 株洲时代新材料科技股份有限公司 | Silicon rubber with high refractive index and high transparency for optical encapsulation and preparation method thereof |
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| CN104277761B (en) | 2016-08-17 |
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