CN211762179U - Composite orthogonal laminated wood comprising cork - Google Patents

Abstract

A composite cross-laminated wood comprising cork, comprising a first surface board (1), a sandwich board (2) and a second surface board (3), the first surface board (1) and the second surface board (3) is a wooden laminate, the sandwich panel (2) is formed by splicing a wooden partition (21) and a cork board (22), the wooden partition (21) is a wooden laminate, and the cork board (22) is made of wood An ecological board made of leather; the sandwich board (2) is located between the first surface board (1) and the second surface board (3), and the main strength directions between the two adjacent boards are orthogonal to each other, and between the layers The cork composite cross-laminated lumber is formed by cold pressing the adhesive layer (4). The cork board (22) of the utility model is made of bark as the main material, which can make full use of wood resources, the composite orthogonal glued wood has good comprehensive properties such as heat preservation, sound insulation and environmental protection, and can effectively reduce the self-weight of the orthogonal glued wood and manufacturing costs.

Description

A composite cross-laminated wood including cork

technical field

The utility model generally relates to the technical field of wood processing, in particular to a composite cross-laminated wood including cork.

Background technique

In the early 20th century, the construction market was basically monopolized by reinforced concrete materials, and wood was rarely used. Even if it was used, it was mainly used for light wood frame structures. In the past 10 years, however, wood has re-occupied the market, keeping pace with mineral-based building materials. An important reason for this change is the innovative development of wood engineering materials. In recent years, in developed countries in Europe and North America, a new generation of heavy-duty wood structure buildings made of sawn timber as the basic unit-Cross-Laminated Timber (CLT) as the main material are partially replacing reinforced concrete and reinforced concrete. For brick-concrete structure buildings, CLT solves the ceiling height limitation of wood structure buildings and can be used to build low, middle and even high-rise residential and non-civilian buildings. With the in-depth research and popularization and application of CLT, my country also conducts research on CLT and begins to industrialize it. In order to cope with complex market demands, it is necessary to further develop more types of new multi-functional CLT products, so as to be more competitive in the process of promotion.

Cork has excellent properties such as low density, good elasticity, heat insulation, sound insulation, water resistance, moisture resistance, flame retardancy, softness and wear resistance. The use of cork has a history of thousands of years, and it has now developed into a relatively mature industry; In the manufacturing process of cork board, there is no need to use additional adhesives and additives, and it also has safety and environmental protection properties such as purification of formaldehyde, anti-electric shock absorption, etc.

The composite cross-laminated lumber made of cork can firstly reduce the amount of wood used in the production of cross-laminated wood to a certain extent, reduce the self-weight of the cross-laminated wood, and at the same time increase the added value of cork; secondly, improve the Compared with the traditional cross-laminated wood, it has a higher cost performance.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a composite cross-laminated wood including cork, which not only has excellent performances such as heat preservation and sound insulation, but also reduces the self-weight and production of the cross-laminated wood. The amount of consumables in the process; in addition, the selected sawn timber and cork board are all processed from trees, and the adhesive layer does not contain harmful substances such as formaldehyde, which has the characteristics of low carbon, environmental protection, recycling and regeneration, and is suitable for human settlements. .

The technical scheme of the utility model is that a composite orthogonal glued wood comprising cork comprises a cork board as an interlayer in its sandwich board, and the cork board is an ecological board made of bark.

Further, the composite cross-laminated wood of the present invention includes a first surface board, a sandwich board and a second surface board, the first surface board and the second surface board are wooden boards, and the sandwich board is separated by wood. The board and the cork board are formed by splicing, and the wooden partition is a wooden layer board; the sandwich board is located between the first surface layer board and the second surface layer board, and the main strength directions between the two adjacent layers are orthogonal to each other. The cork composite cross-laminated lumber is formed by cold pressing between the adhesive layers.

Further, the proportion of cork board in the above-mentioned sandwich panel is 30%-90% by volume; the height range of the cork board in the sandwich board is 20-70mm, and the width range is 140-500mm. Cork composite cross-laminated lumber with different thermal insulation and sound insulation grades can be made by selecting cork boards with different volume ratios and sizes.

Further, the proportion of cork boards in the above-mentioned cork composite cross-laminated wood is 9%-27% by volume. Cork composite cross-laminated lumber with different thermal insulation and sound insulation grades can be made by selecting cork boards with different volume ratios.

Further, the tree species of the first surface board and the second surface board are the same or different; the tree species type of the wooden partition is the same as or different from the first surface board or the second surface board. Using different matching wooden partitions, first surface boards and second surface boards, cork composite cross-laminated lumber can be produced with different application requirements such as appearance and mechanical strength.

Further, the above-mentioned adhesive layer is a kind of one-component polyurethane PUR and two-component isocyanate EPI; a kind of glue in one-component polyurethane PUR and two-component isocyanate EPI is passed between the wooden clapboard and the cork board. Adhesive bonded stitching. The adhesive layer does not contain formaldehyde and other harmful substances, and has the beneficial characteristics of low carbon and environmental protection.

Further, the above-mentioned first surface board, second surface board and wooden partition board are each independently selected from one of Canadian SPF, Canadian hemlock, American southern pine, Yunnan pine, Yunnan hemlock and Yunnan fir. Using different tree species of wood clapboard, first surface board and second surface board, cork composite cross-laminated lumber with different strength levels can be made to meet different application needs; The first surface board and the second surface board can relatively reduce the difficulty of construction, and less design the impact of shrinkage and expansion between different tree species on the use and storage of cork composite cross-laminated lumber. Therefore, different types or the same type are selected. Each has its own merits.

The composite cross-laminated wood including cork of the present invention can be designed to include not only the first surface board, the sandwich board and the second surface board which are bonded in sequence, but also the second sandwich board and the third surface board, so that , the layer structure of the composite orthogonal glulam from top to bottom is: the first surface board, the sandwich board, the second surface board, the second sandwich board, the third surface board, the main board between the two adjacent boards. The strength directions are orthogonal to each other, and each layer is formed by cold pressing with an adhesive layer; the second sandwich board is formed by splicing a wooden clapboard and a cork board, and the wooden clapboard and the third surface board are independently A wood laminate selected from Canadian SPF, Canadian hemlock, American southern pine, Yunnan pine, Yunnan hemlock and Yunnan fir.

Similarly, the composite cross-laminated wood including cork of the present invention may include seven layers, that is, in addition to the first surface board, the sandwich board and the second surface board which are bonded in sequence, it also includes the second sandwich board and the third surface layer. board, the third sandwich board, the fourth surface board, the overall layer structure from top to bottom is: the first surface board, the sandwich board, the second surface board, the second sandwich board, the third surface board, the third sandwich board, the fourth surface board, the main strength directions between the two adjacent boards are orthogonal to each other, and the layers are formed by cold pressing with an adhesive layer; the second sandwich board and the third sandwich board are made of wooden partitions. It is formed by splicing with cork board, and the wooden clapboard, the third surface board and the fourth surface board are all independently selected from Canadian SPF, Canadian hemlock, American southern pine, Yunnan pine, Yunnan hemlock and Yunnan fir. A wood laminate.

The utility model has the following beneficial effects:

1) The composite cross-laminated wood including cork of the present invention has excellent comprehensive properties. Compared with ordinary cross-laminated wood, the use performances such as heat preservation and sound insulation are greatly improved, and the self-weight is also greatly reduced. surroundings;

2) The selected material of the composite orthogonal glued wood including cork of the present invention is low-carbon, environmentally friendly, recyclable and renewable, reduces the amount of consumables, and fits the theme of the times;

3) The material used in the composite cross-laminated wood including cork of the present invention is low in price, which increases the added value of the product.

Description of drawings

These and/or other aspects and advantages of the present invention will become clearer and easier to understand from the following detailed description of embodiments of the present invention in conjunction with the accompanying drawings, wherein:

Fig. 1 is the three-dimensional schematic diagram of the utility model embodiment 1;

Fig. 2 is the three-dimensional schematic diagram of Embodiment 2 of the present utility model;

Fig. 3 is the three-dimensional schematic diagram of Embodiment 3 of the present utility model;

FIG. 4 is a three-dimensional schematic diagram of Embodiment 4 of the present invention.

Detailed ways

In order to make those skilled in the art better understand the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

A three-layer cork composite cross-laminated lumber, the upper and lower layers of which are Canadian hemlock sawn timber, and the interlayer board is a spliced layer of Canadian hemlock sawn timber and cork plate. as follows:

The first surface board 1 and the second surface board 3 are both formed by splicing commercially available Canadian hemlock sawn timber, the size of the sawn timber is 35×140×3040mm, the drying rate is 9-15%, and the moisture content is 9-15%; It is a commercially available Canadian hemlock sawn timber with a size of 35×140×1380mm and a drying rate of 9-15%; the cork 22 board is a commercially available material with a density of 120kg/m ³ and a size of 38×140× 1380mm; adhesive layer 4 is one-component polyurethane (PUR);

The first surface board 1 and the second surface board 3 are both formed by splicing Canadian hemlock sawn timber in a manner that the ends of the boards are aligned and the main strength direction (length direction) is parallel;

The sandwich panel 2 is formed by splicing the wooden clapboard 21 board and the cork board 22 board at intervals in a manner that the main strength direction (length direction) of the wooden partition board 21 board is parallel to the length direction of the cork board 22 board;

In the formed glulam: the main strength directions of the first skin board 1 and the second skin board 3 are parallel, the sandwich board 2 is between the first skin board 1 and the second skin board 3, and its main strength direction is the same as that of the first skin board. 1 and the second skin panel 3 are perpendicular to each other.

The three-layer cork composite cross-laminated wood produced in the above embodiment has good mechanical strength performance and moderate thermal insulation and sound insulation performance; it is suitable for building wall panels with general mechanical strength requirements, general thermal insulation and sound insulation requirements, or low mechanical strength requirements, thermal insulation and sound insulation requirements. General building floor.

Example 2

A three-layer cork composite cross-laminated lumber, the upper and lower layers of which are Canadian SPF sawn timber, and the sandwich panel is a spliced layer of Canadian SPF sawn timber and cork plate, the schematic diagram of its specific structure is shown in Figure 2, and the dimensions of each part are as follows:

The first surface board 1 and the second surface board 3 are both formed by splicing commercially available Canadian SPF sawn timber, the size of the sawn timber is 35×140×3040mm, and the drying rate is 9-15%; Commercially available Canadian SPF sawn timber, the size is 35×140×1380mm, and the drying rate is 9-15%; the cork board 22 is a commercially available material, the density is 180kg/m ³ , and the size is 38×420×1380mm; The adhesive layer 4 is two-component isocyanate (EPI);

The first surface board 1 and the second surface board 3 are both formed by splicing Canadian SPF sawn timber in a manner that the ends of the boards are aligned and the main strength direction (length direction) is parallel;

The sandwich panel 2 is formed by splicing the wooden clapboard 21 board and the cork board 22 board at intervals in a manner that the main strength direction (length direction) of the wooden partition board 21 board is parallel to the length direction of the cork board 22 board;

In the formed glulam: the main strength directions of the first skin board 1 and the second skin board 3 are parallel, the sandwich board 2 is between the first skin board 1 and the second skin board 3, and its main strength direction is the same as that of the first skin board. 1 and the second skin panel 3 are perpendicular to each other.

The three-layer cork composite cross-laminated wood produced in the above embodiment has good mechanical strength performance and thermal insulation and sound insulation performance; it is suitable for building wall panels with general mechanical strength requirements and high thermal insulation and sound insulation requirements.

Example 3

A three-layer cork composite cross-laminated lumber, the upper and lower layer boards are Yunnan pine sawn timber, and the sandwich board is a spliced layer of Yunnan pine sawn timber and cork board, its specific structural schematic diagram is shown in Figure 3, and the dimensions of each part are as follows:

The first surface board 1 and the second surface board 3 are formed by splicing and splicing commercially available Yunnan pine sawn timber, the size of the sawn timber is 68×140×3040mm, and the drying rate is 9-15%; Commercially available Yunnan pine sawn timber, the size is 35×140×1380mm, the drying rate is 9-15%; the cork board 22 is commercially available material, the density is 120kg/m ³ , and the size is 38×140×1380mm; The adhesive layer 4 is one-component polyurethane (PUR);

The first surface board 1 and the second surface board 3 are both formed by splicing Yunnan pine sawn timber in a manner that the ends of the boards are aligned and the main strength direction (length direction) is parallel;

The sandwich panel 2 is formed by splicing the wooden clapboard 21 board and the cork board 22 board at intervals in a manner that the main strength direction (length direction) of the wooden partition board 21 board is parallel to the length direction of the cork board 22 board;

In the formed glulam: the main strength directions of the first skin board 1 and the second skin board 3 are parallel, the sandwich board 2 is between the first skin board 1 and the second skin board 3, and its main strength direction is the same as that of the first skin board. 1 and the second skin panel 3 are perpendicular to each other.

The three-layer cork composite cross-laminated wood produced in the above embodiment has excellent mechanical strength performance and moderate thermal insulation and sound insulation performance; it is suitable for building wall panels with high mechanical strength requirements and general thermal insulation and sound insulation requirements or building floor slabs with low requirements.

Example 4

A three-layer cork composite cross-laminated lumber, the upper and lower layers are Yunnan hemlock sawn timber, and the sandwich panel is a spliced layer of Yunnan hemlock sawn timber and cork plate. as follows:

The first surface board 1 and the second surface board 3 are formed by splicing and splicing commercially available Yunnan hemlock sawn timber, the size of the sawn timber is 35×140×3040mm, the drying rate is 9-15%, and the moisture content is 9-15%; It is a commercially available Yunnan hemlock sawn timber with a size of 68×140×1380mm and a drying rate of 9-15%; the cork board 22 is a commercially available material with a density of 180kg/m ³ and a size of 70×420× 1380mm; Adhesive layer 4 is two-component isocyanate (EPI);

The first surface board 1 and the second surface board 3 are both formed by splicing Yunnan Hemlock sawn timber in a manner that the ends of the boards are aligned and the main strength direction (length direction) is parallel;

The sandwich panel 2 is formed by splicing the wooden clapboard 21 board and the cork board 22 board at intervals in a manner that the main strength direction (length direction) of the wooden partition board 21 board is parallel to the length direction of the cork board 22 board;

In the formed glulam: the main strength directions of the first skin board 1 and the second skin board 3 are parallel, the sandwich board 2 is between the first skin board 1 and the second skin board 3, and its main strength direction is the same as that of the first skin board. 1 and the second skin panel 3 are perpendicular to each other.

The three-layer cork composite cross-laminated wood produced in the above embodiment has moderate mechanical strength properties and excellent thermal insulation and sound insulation performance; it is suitable for building wall panels with general mechanical strength requirements and high thermal insulation and sound insulation requirements or building wall panels with low mechanical strength requirements, thermal insulation and sound insulation requirements. Building slabs with higher requirements.

In the above four embodiments of cork composite cross-laminated wood, sawn timbers of different tree species are used to make surface boards, cork boards of different volume ratios are used to make sandwich boards, and adhesives of different components are used to make adhesive layers. Different grades of cork composite cross-laminated lumber to meet different practical needs.

The above-mentioned cork composite orthogonal glulam not only has the advantages of traditional orthogonal glulam, such as low carbon, environmental protection, and stable mechanical properties, but also further reduces its own weight and improves practical performance such as heat preservation, sound insulation, fire prevention, and moisture resistance.

Various embodiments of the present invention have been described above, and the foregoing descriptions are exemplary, not exhaustive, and not limiting of the disclosed embodiments. Numerous modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A composite orthogonal laminated wood comprising cork, characterized in that it comprises as sandwich a cork board in its sandwich, said cork board (22) being an ecological board made of bark.

2. Composite orthogonal veneer including cork according to claim 1, characterized in that it comprises a first skin (1), a sandwich panel (2), a second skin (3) and an adhesive layer (4),

the first surface plate (1) and the second surface plate (3) are wood plates,

the sandwich plate (2) is formed by splicing a wooden partition plate (21) and a cork plate (22), wherein the wooden partition plate (21) is a wooden laminate;

the sandwich plate (2) is positioned between the first surface plate (1) and the second surface plate (3); the main strength directions of the two adjacent layers of boards are mutually orthogonal, and the layers are cold-pressed through the adhesive layer (4) to form the composite orthogonal laminated wood.

3. Composite orthogonal veneer including cork according to claim 2, characterized in that the proportion of cork boards (22) in the sandwich panel (2) is 30-90% by volume; the height range of the cork plate (22) in the sandwich plate (2) is 20-70mm, and the width range is 140-500 mm.

4. Composite orthogonal veneer including cork according to claim 3, characterized in that the proportion of cork boards (22) in the composite orthogonal veneer is 9-27% by volume.

5. A composite orthogonal veneer including cork according to claim 2, characterized in that every two cork boards (22) in the sandwich panel (2) are separated by a wood partition (21).

6. Compound orthogonal veneer including cork according to claim 5,

the tree types of the first surface plate (1) and the second surface plate (2) are the same or different,

the wood separator (21) is of the same tree type as the first skin plate (1) and/or the second skin plate (3) or of a different tree type.

7. Composite orthogonal veneer including cork according to claim 5, characterized in that said adhesive layer (4) is one of one-component polyurethane PUR and two-component isocyanate EPI; the wooden partition board (21) and the cork board (22) are spliced by bonding through one adhesive in one-component polyurethane PUR and two-component isocyanate EPI.

8. Composite orthogonal glued wood comprising cork according to claim 5, characterised in that said first skin sheet (1), second skin sheet (3) and wood separator (21) are each independently selected from one of the group comprising Canadian SPF, Canadian hemlock, southern American pine, Yunnan hemlock and Yunnan fir.

9. Composite orthogonal veneer including cork according to claim 8, characterized in that it further comprises a second sandwich plate (5) and a third surface plate (6), the layer structure of which is, from top to bottom: the laminated plate comprises a first surface plate (1), a sandwich plate (2), a second surface plate (3), a second sandwich plate (5) and a third surface plate (6), wherein the main strength directions of two adjacent plates are mutually orthogonal, and the layers are formed by cold pressing through an adhesive layer (4); the second sandwich plate (5) is formed by splicing a wood partition plate (51) and a cork plate (22), wherein the wood partition plate (51) and the third sandwich plate (6) are both wood laminate plates which are respectively and independently selected from Canadian SPF, Canadian hemlock, southern pine, Yunnan hemlock and Yunnan fir.

10. Composite orthogonal veneer including cork according to claim 8, characterized in that it further comprises a second sandwich plate (7), a third sandwich plate (8), a third sandwich plate (9), a fourth surface plate (10), whose layer structure is, from top to bottom: the laminated plate comprises a first surface plate (1), a sandwich plate (2), a second surface plate (3), a second sandwich plate (7), a third surface plate (8), a third sandwich plate (9) and a fourth surface plate (10), wherein the main strength directions of the two adjacent surface plates are mutually orthogonal, and the layers are subjected to cold press molding through an adhesive layer (4); the second sandwich plate (7) and the third sandwich plate (9) are formed by splicing a wood clapboard and a cork plate (22), and the wood clapboard, the third sandwich plate (8) and the fourth sandwich plate (10) are all wood veneers which are respectively and independently selected from Canadian SPF, Canadian hemlock fir, American southern pine, Yunnan hemlock and Yunnan fir.

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