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A kind of high compression resistance and high bending performance environmental protection wood plywood and preparation method thereof

A technology of bending performance and wood plywood, applied in the field of wood plywood, can solve problems such as high cost, negative impact on the environment, harmful compatibility, etc., and achieve the effect of improving adhesion, not easy to peel off, and increasing the degree of copolymerization

Active Publication Date: 2022-05-17
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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  • A kind of high compression resistance and high bending performance environmental protection wood plywood and preparation method thereof
  • A kind of high compression resistance and high bending performance environmental protection wood plywood and preparation method thereof
  • A kind of high compression resistance and high bending performance environmental protection wood plywood and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like figure 1As 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;

[0049] The raw materials for the preparation of the adhesive coating 1-2, by weight components, include the following components:

[0050] 10 parts of aluminum silicate fiber;

[0051] 25 parts of polyvinyl acetate resin;

[0052] Particle size is 18 parts of nanometer zinc oxide of 12nm;

[0053] 40 parts of polyurethane;

[0054] 5 parts of zinc diethyldithiocarbamate;

[0055] 12 parts of 2,6-di-tert-butyl-4-methylphenol antioxidant;

[0056] 3 parts of defoamer;

[0057] Leveling agent 4 parts;

[0058] 6 parts of isocyanate bri...

Embodiment 2

[0074] 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;

[0075] The preparation raw materials of adhesive coating 1-2, by weight component, comprise following composition:

[0076] 13 parts of gypsum fiber;

[0077] 30 parts of polyvinyl acetate resin;

[0078] Particle size is 21.5 parts of nanometer zinc oxide of 15nm;

[0079] 45 parts of polyurethane;

[0080] 7 parts of zinc diethyldithiocarbamate;

[0081] Tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester antioxidant 13.5 parts;

[0082] 5 parts of defoamer;

[0083] Leveling agent 6 parts;

[0084] 8 parts of isoc...

Embodiment 3

[0100] 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;

[0101] The raw materials for the preparation of the adhesive coating include the following components by weight components:

[0102] Basalt fiber 16 parts;

[0103] 35 parts of polyvinyl acetate resin;

[0104] Particle size is 25 parts of nanometer zinc oxide of 18nm;

[0105] 50 parts of polyurethane;

[0106] 9 parts of zinc diethyldithiocarbamate;

[0107] 15 parts of 4,4'-(decaoxy-4,7-formaldehyde) bisphenol antioxidant;

[0108] 7 parts of defoamer;

[0109] Leveling agent 8 parts;

[0110] 10 parts of isocyanate bridging agent;

[0111] 12 parts...

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Abstract

The invention provides an environmentally friendly plywood with high compression resistance and high bending performance and a preparation method thereof. The plywood includes a plywood unit composed of a multi-layer single-layer original plywood and an adhesive coating. The plywood The units are bonded by a polytetrafluoroethylene adhesive film with a thickness of 0.03 mm to 0.05 mm; the raw materials for the preparation of the adhesive coating include the following components: natural mineral fiber, polyvinyl acetate resin, nano-zinc oxide, polyurethane, Zinc diethyldithiocarbamate, phenolic antioxidant, defoamer, leveling agent, isocyanate bridging agent, acrylic thickener, potassium laurate, NaOH, dimethylformamide. The present invention provides an environmentally friendly wood plywood with high compression resistance and high bending performance and its preparation method, which can improve its compression resistance and bending performance by combining natural mineral fibers with polyvinyl acetate resin to form a semi-penetrating copolymer and then using polyurethane as a matrix. , Impact resistance and peel resistance.

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 Patents(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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