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High-compression-resistance and high-bending-performance environment-friendly wood glue plate and preparation method thereof

A bending performance, wood plywood technology, applied in the field of wood plywood, can solve the problems of negative impact on the environment, high cost, harmful compatibility, etc.

Active Publication Date: 2021-06-08
湖南省杨林木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Their disadvantages are high cost, negative impact on the environment and sometimes even detrimental compatibility with wood or reinforcing fibers

Method used

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  • High-compression-resistance and high-bending-performance environment-friendly wood glue plate and preparation method thereof
  • High-compression-resistance and high-bending-performance environment-friendly wood glue plate and preparation method thereof
  • High-compression-resistance and high-bending-performance environment-friendly wood glue plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 As shown, it is a high-compression and high-bending performance environmental protection wood glue board provided by this embodiment, the wood glue board includes a combination of multi-layer single-layer original wood board 1-1 and adhesive coating 1-2 Board unit 1, the plywood unit 1 is adhered by a polytetrafluoroethylene adhesive film 2 with a thickness of 0.03mm, and the thickness of the adhesive coating is 0.4mm;

[0037] The raw materials for the preparation of the adhesive coating 1-2, by weight components, include the following components:

[0038]

[0039] The number of layers of the plywood unit 1 in which the single-layer original wood board 1-1 is combined with the adhesive coating 1-2 is 2 layers.

[0040] Wherein, the preparation method of adhesive coating comprises the following steps:

[0041] S1: Mix 10 parts of aluminum silicate fiber with 25 parts of polyvinyl acetate resin, stir at 65°C at 100 rpm for 30 minutes, and continuously ...

Embodiment 2

[0050] like figure 2 As shown, it is a high-compression-resistant and high-bending performance environmentally friendly wood plywood provided in this embodiment. The wood plywood includes a multi-layer single-layer original wood board 1-1 and an adhesive coating 1-1 with a thickness of 0.45mm. 2 combined plywood units 1, the plywood units 1 are bonded by a polytetrafluoroethylene adhesive film 2 with a thickness of 0.04mm;

[0051] The preparation raw materials of adhesive coating 1-2, by weight component, comprise following composition:

[0052]

[0053] The number of layers of the plywood unit 1 in which the single-layer original wood board 1-1 is combined with the adhesive coating 1-2 is 3 layers.

[0054] A method for preparing an adhesive coating, comprising the steps of:

[0055] S1: Mix 13 parts of gypsum fiber with 30 parts of polyvinyl acetate resin, stir at 70°C at 125 rpm for 37 minutes, and continuously add 7.5 parts of dimethylformamide dropwise during the s...

Embodiment 3

[0064] like image 3 As shown, it is a high-compression and high-bending performance environmental protection wood plywood provided in this embodiment, and the wood plywood includes a multi-layer single-layer original wood board 1-1 and an adhesive coating 1-1 with a thickness of 0.5 mm. 2 combined plywood units 1, the plywood units 1 are bonded by a polytetrafluoroethylene adhesive film 2 with a thickness of 0.05 mm;

[0065] The raw materials for the preparation of the adhesive coating include the following components by weight components:

[0066]

[0067] The plywood unit of the single-layer raw wood board 1-1 combined with the adhesive coating 1-2 has four layers.

[0068] The preparation method of described adhesive coating comprises the following steps:

[0069] S1: Mix 16 parts of basalt fiber with 35 parts of polyvinyl acetate resin, stir at 150 rpm for 45 minutes at 75°C, and continuously add 10 parts of dimethylformamide dropwise during the stirring process to ...

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Abstract

The invention provides a high-compression-resistance high-bending-performance environment-friendly wood rubber plate and a preparation method thereof. The wood rubber plate comprises multiple layers of wood rubber plate units formed by combining a single-layer raw wood plate and a bonding coating, and the wood rubber plate units are bonded through polytetrafluoroethylene bonding films with thickness of 0.03-0.05 mm; and the bonding coating is prepared from the following raw materials: natural mineral fibers, polyvinyl acetate resin, nano zinc oxide, polyurethane, zinc diethyldithiocarbamate, a phenolic antioxidant, a defoaming agent, a flatting agent, an isocyanate bridging agent, an acrylic thickener, potassium laurate, NaOH and dimethylformamide. According to the high-compression-resistance and high-bending-performance environment-friendly wood glue plate and the preparation method thereof, the natural mineral fibers and the polyvinyl acetate resin are combined to form a semi-penetrating copolymer, and then the semi-penetrating copolymer and the polyurethane serve as a matrix, so that the compression resistance, the bending performance, the impact resistance and the stripping resistance of the wood glue plate can be improved.

Description

technical field [0001] The invention belongs to the technical field of wood glue boards, and in particular relates to an environment-friendly wood glue board with high compression resistance and high bending performance and a preparation method thereof. Background technique [0002] The wood processing industry is an indispensable and important part of the national economic construction. Its industrial chain has been extended to wood and bamboo processing, wood-based panels, award-making papermaking and forestry chemical industries. Wood is also a renewable and recycled green material and raw material. material resources. Accelerating the development of the wood processing industry can not only meet people's rigid requirements for forest products, but also fully stimulate the development of regional trade economy. [0003] As a product of the wood processing industry, plywood is important to people's daily life and the construction industry. Formwork and scaffolding are imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B21/14B32B21/08B32B27/40B32B27/08B32B27/32B32B7/12B32B37/10B32B37/12B32B37/06C09J175/04C09J11/08C09J11/06C09J11/04
CPCB32B21/14B32B21/08B32B27/40B32B27/08B32B27/322B32B7/12B32B37/10B32B37/12B32B37/06C09J175/04C09J11/08C09J11/06C09J11/04B32B2307/554B32B2307/558B32B2307/546B32B2307/50B32B2307/51C08K2003/2296C08K2201/011C08K2201/005C08L23/0853C08K3/22C08K5/39C08K7/10C08K7/08Y02W30/91
Inventor 张伏元
Owner 湖南省杨林木业有限公司
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