CN216920761U - Multilayer structure straw composite board - Google Patents
Multilayer structure straw composite board Download PDFInfo
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- CN216920761U CN216920761U CN202220689959.0U CN202220689959U CN216920761U CN 216920761 U CN216920761 U CN 216920761U CN 202220689959 U CN202220689959 U CN 202220689959U CN 216920761 U CN216920761 U CN 216920761U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
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Abstract
The utility model discloses a multilayer-structure straw composite board, which comprises a board body, wherein the board body comprises a core layer, a heat-insulating layer and a surface structure layer; two side surfaces of the core layer are provided with heat insulation layers, and the outer surfaces of the heat insulation layers are provided with surface structure layers; the core layer adopts a straw board, the heat insulation layer adopts a polystyrene board, and the surface structure layer adopts a single-layer bamboo plywood; the core layer at one end of the plate body is shorter than the heat-insulation layer and the surface structure layer, the core layer at the other end of the plate body is longer than the heat-insulation layer and the surface structure layer, and the two ends of the core layer, the heat-insulation layer and the surface structure layer are respectively provided with a matched finger joint; the outer surface of the heat-insulating layer is impregnated with an insect-proof agent. The utility model has better main mechanical property, high surface strength, good wear resistance and good heat insulation performance.
Description
Technical Field
The utility model relates to a building structure board, in particular to a multilayer structure straw composite board.
Background
The straw board is used as a substitute product of the wood artificial board, meets the requirements of environmental protection and energy conservation, and solves the requirements of recycling the straw and reducing the agricultural carbon emission in China. The popularization of the straw board has been for many years, but resistance exists in the application and popularization of the straw board as a building structure board due to various problems.
The straw board is used as a novel artificial board, is light in weight, uses isocyanate adhesive (MDI adhesive) to effectively reduce formaldehyde release compared with a wood shaving board and a medium-density fiberboard, and can be used in most wood board application occasions. The straw board is mostly crushed the straw, and then the board is synthesized through gluing agent. The surface of the straw board is rough, the wear resistance is low, the decoration is lacked, and the multi-purpose veneer overlaying treatment is carried out on the market, so that the cost is high. Meanwhile, the mechanical property of the straw board is slightly inferior to that of a wood artificial board with the same price, and the straw board is mostly used in a building structure and is not trusted by consumers.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a multilayer structure straw composite board aiming at the defects of the prior art, and the multilayer structure straw composite board has better main mechanical property, high surface strength, good wear resistance and good heat insulation property.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:
the multilayer structure straw composite board comprises a board body, wherein the board body comprises a core layer, a heat insulation layer and a surface structure layer;
heat preservation and insulation layers are laid on the two side surfaces of the core layer, and surface structure layers are laid on the outer surfaces of the heat preservation and insulation layers;
the core layer adopts a straw board, the heat insulation layer adopts a polystyrene board, and the surface structure layer adopts a single-layer bamboo plywood;
the core layer at one end of the plate body is shorter than the heat-insulation layer and the surface structure layer, the core layer at the other end of the plate body is longer than the heat-insulation layer and the surface structure layer, and the two ends of the core layer, the heat-insulation layer and the surface structure layer are respectively provided with a matched finger joint;
the outer surface of the heat-insulating layer is impregnated with an insect-proof agent.
As a further improved technical scheme of the utility model, the straw plate is made of wheat straws.
As a further improved technical scheme of the utility model, the thickness of the straw board is 12 mm.
As a further improved technical scheme of the utility model, the polystyrene board adopts polystyrene particles.
As a further improved technical scheme of the utility model, the single-layer bamboo plywood adopts moso bamboo chips.
As a further improved technical scheme of the utility model, the core layer, the heat-insulating layer and the surface structure layer are sequentially connected by gluing with an adhesive.
As a further improved technical scheme of the utility model, the core layer is a straw board which is subjected to antiseptic treatment, and the surface structural layer is a single-layer bamboo plywood which is subjected to antiseptic treatment.
The utility model has the beneficial effects that:
1. the main body of the board is crop straws, a feasible scheme is provided for recycling crop wastes, and the environmental protection performance of the product can be ensured. On the other hand, the straw board is selected as the core layer, so that the board has good rigidity and flexibility, and the green-removing and yellow-removing bamboo chips are selected as the surface structure layer to be glued into the single-layer bamboo plywood, so that the main mechanical property of the whole board is enhanced; the surface strength is enhanced, the heat insulation layer is protected, the surface patterns are enriched, and the surface decoration process is omitted; the straw board of the core layer also makes up the transverse mechanical property of the bamboo plywood arranged in a single direction.
2. The main structure of the board is the straw board, the outer layer uses the green-removing and yellow-removing bamboo chips and the bamboo fiber bundle structure, the main strength is ensured, the heat-insulating layer is protected, the straw board of the core layer also makes up the defect of insufficient lateral mechanical properties of the single-layer bamboo plywood, the overall weight is reduced, and therefore the structural strength of the board is enhanced, and the transportation cost and the installation difficulty can be reduced. On the other hand, the natural surface patterns of the bamboo wood are more popular in the market than straw boards, so that the step of external decoration can be omitted, the cost is reduced, and the popularization is convenient.
3. The utility model improves the performances of fire prevention, corrosion prevention, insect prevention, termite prevention and the like of the plate through antiseptic treatment.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following further description of embodiments of the utility model is made with reference to the accompanying drawings:
referring to fig. 1, the utility model provides a multilayer straw composite board, which comprises a board body, wherein the board body comprises a core layer 1, a heat insulation layer 2 and a surface structure layer 3.
And heat-insulating layers 2 are paved on two side surfaces of the core layer 1, and surface structure layers 3 are paved on the outer surfaces of the heat-insulating layers 2.
The core layer 1 is a straw board with the thickness of 12mm, the heat insulation layer 2 is a polystyrene board, and the surface structure layer 3 is a single-layer bamboo plywood.
The sandwich layer 1 of panel body one end is shorter than thermal insulation layer 2 and surface structure layer 3, and sandwich layer 1, thermal insulation layer 2 and the surface structure layer 3 of this end are the cockscomb structure, and then make this end be formed with concave type and indicate joint 4.
The sandwich layer 1 at the other end of the plate body is longer than the heat-insulating layer 2 and the surface structure layer 3, the sandwich layer 1, the heat-insulating layer 2 and the surface structure layer 3 at the end are all in a sawtooth shape, and then the end is provided with a convex finger joint 5 matched with the concave finger joint 4.
The outer surface of the heat-insulating layer 2 is impregnated with insect-proof agents, so that the insect-proof agents are added into the edge gaps.
In this embodiment, the straw board is mainly wheat straw or the like, such as a single layer of wheat straw or cotton stalk.
In this embodiment, the polystyrene board employs polystyrene particles.
In this embodiment, the single-layer bamboo plywood is formed by gluing green-removed and yellow-removed moso bamboo chips, and the arrangement direction of the bamboo chips is parallel to the main force-bearing direction (length direction) of the whole board of the board body.
In this embodiment, the core layer 1, the thermal insulation layer 2 and the surface structure layer 3 are sequentially connected by gluing with an adhesive.
In this embodiment, the core layer 1 is a straw board subjected to corrosion protection treatment, and the surface structure layer 3 is a single-layer bamboo plywood subjected to corrosion protection treatment.
In this embodiment, the core layer 1, the thermal insulation layer 2, and the surface structure layer 3 are flush with each other in the width direction, the thermal insulation layer 2 and the surface structure layer 3 in the length direction extend to be concave, and the core layer 1 on the other side extends to be convex.
When the laminated board is prepared, the laminated boards of all layers are firstly prepared, after the laminated boards are inspected to be qualified, the long connecting teeth are pre-opened and connected, and the laminated boards are cut, sanded and combined.
And secondly, performing anticorrosive treatment on the straw board of the core layer 1 and the single-layer bamboo plywood of the surface structure layer 3, and impregnating the four-side insect-proof agent into the heat-insulating layer 2.
Laying five layers on the feeding laying table according to the set layer number, material and arrangement direction, then pressing by hot-pressing gluing equipment, and cutting after finishing.
The utility model can also prevent the thermal insulation layer 2 from being damaged before the middle cushion and the core layer 1 are lengthened at the extended ends of the thermal insulation layer 2 and the surface structure layer 3.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (7)
1. Multilayer structure straw composite board, its characterized in that: the heat-insulating plate comprises a plate body, wherein the plate body comprises a core layer, a heat-insulating layer and a surface structure layer;
heat preservation and insulation layers are laid on the two side surfaces of the core layer, and surface structure layers are laid on the outer surfaces of the heat preservation and insulation layers;
the core layer adopts a straw board, the heat insulation layer adopts a polystyrene board, and the surface structure layer adopts a single-layer bamboo plywood;
the core layer at one end of the plate body is shorter than the heat-insulation layer and the surface structure layer, the core layer at the other end of the plate body is longer than the heat-insulation layer and the surface structure layer, and the two ends of the core layer, the heat-insulation layer and the surface structure layer are respectively provided with a matched finger joint;
the outer surface of the heat-insulating layer is impregnated with an insect-proof agent.
2. The multi-layer straw composite board as claimed in claim 1, wherein: the straw plate is made of wheat straws.
3. The multi-layer straw composite board as claimed in claim 1, wherein: the thickness of the straw board is 12 mm.
4. The multi-layer straw composite board as claimed in claim 1, wherein: the polystyrene board adopts polystyrene particles.
5. The multi-layer straw composite board as claimed in claim 1, wherein: the single-layer bamboo plywood is made of moso bamboo chips.
6. The multi-layer straw composite board as claimed in claim 1, wherein: the core layer, the heat-insulating layer and the surface structure layer are sequentially connected through adhesive in a gluing mode.
7. The multi-layer straw composite board as claimed in claim 1, wherein: the core layer is a straw board subjected to antiseptic treatment, and the surface structure layer is a single-layer bamboo plywood subjected to antiseptic treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220689959.0U CN216920761U (en) | 2022-03-28 | 2022-03-28 | Multilayer structure straw composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220689959.0U CN216920761U (en) | 2022-03-28 | 2022-03-28 | Multilayer structure straw composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216920761U true CN216920761U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220689959.0U Active CN216920761U (en) | 2022-03-28 | 2022-03-28 | Multilayer structure straw composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216920761U (en) |
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2022
- 2022-03-28 CN CN202220689959.0U patent/CN216920761U/en active Active
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