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Novel wooden composite board

A composite board and wood technology, which is applied in the joining of wooden veneers, wood laminate products, wood processing appliances, etc. The effect of flame spread, isolation of oxygen, and high pass rate

Active Publication Date: 2017-10-17
临沂市新天力机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems existing in the prior art, such as easy cracking and falling off of the board sticker, high cost, poor competitiveness, insufficient strength, and poor flame retardant and fireproof performance, and provide a new type of wood composite board to overcome the deficiencies of the prior art

Method used

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  • Novel wooden composite board

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 , a new type of wood composite board, which includes a central layer 3; the upper and lower sides of the central layer 3 are respectively provided with a transition layer 2; the upper and lower sides of the transition layer 2 are respectively provided with an impregnated paper layer 1; the impregnated paper layer 1. The transition layer 2 and the central layer 3 are connected by high temperature and high pressure bonding.

[0033] The transition layer 2 is a shaving fiber layer structure; the central layer is a modified wood-plastic board.

[0034] In order to facilitate firm connection, the upper and lower surfaces of the central layer 3 and the transition layer 2 may also be provided with roughened concave-convex layers.

[0035] The production process of the composite board is as follows:

[0036] 1) The raw materials are crushed, polished, dried, and screened to produce qualified shaving fibers for use; the environmentally friendly glue is prepar...

Embodiment 2

[0043] The present invention also relates to the improvement of the central layer, which is a modified wood-plastic board, specifically, prepared according to the following process:

[0044] 1) Weigh the raw materials by weight for later use: 50-70 parts of wood fiber, 7-9 parts of polypropylene resin, 3-5 parts of flame retardant, 3-5 parts of inorganic filler, 2-3 parts of polyvinyl alcohol, curing agent 1-2 parts, glass fiber 0.3-0.5 parts;

[0045] Described flame retardant is mixed by red phosphorus and tributyl phosphate according to the mass ratio of 2:1;

[0046] The inorganic filler is formed by mixing silicon carbide and aluminum oxide at a mass ratio of 1:1;

[0047] The curing agent is prepared according to the following process: put toluene diisocyanate and butyl acetate into the reactor according to the volume ratio of 3:1, heat to 60°C, stir at 200rpm for 30min under the condition of heat preservation, and then add dropwise the mixture with acetic acid Trimeth...

Embodiment 3

[0051] The present invention also detects the effect of the curing agent on the performance of the modified wood-plastic panel:

[0052] The control group selects commonly used polyurethane solidifying agent for use, and all the other are the same as embodiment 2; Each performance parameter is respectively: impact strength 33.6kJ / cm 2 ; thermal conductivity is 0.027W / (m k); water absorption 0.046%; dimensional stability (GB / T8811 "30 ℃, 48 hours") 0.32%. It can be seen that the curing agent of the present invention has reasonable compatibility and can effectively improve the performance of the plate, which is better than the commonly used curing agents in the prior art.

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Abstract

The invention discloses a novel wooden composite board which comprises a central layer. Transition layers are arranged on the upper face and the lower face of the central layer respectively. Impregnated paper layers are arranged on the upper faces and the lower faces of the transition layers respectively. The impregnated paper layers, the transition layers and the central layer are mutually bonded and connected through adhesive layers at high temperature and high pressure. The novel wooden composite board is reasonable in structure and novel in design, good in surface quality, high in pass percent and durable, and overcomes the shortcomings of easy cracking, carbonization and shedding of existing ecological board surface stickers. In addition, a production process is simple, the production efficiency is high, the production cost is greatly reduced, and the shortcomings of complicated process, long production period and high cost of existing ecological boards are overcome.

Description

technical field [0001] The invention belongs to the technical field of boards, and in particular relates to a novel wood composite board. Background technique [0002] In the prior art, boards have a wide range of uses and various varieties; currently, ecological boards are widely used, mainly used in building materials, furniture, logistics packaging and other industries. The ecological board mainly has the following technical defects: First, because the surface of the ecological board is attached with a layer of stickers, affected by the production process, the stickers are prone to cracking, carbonization, and falling off defects, resulting in a short service life of the board; and, the current ecological board The production process is complex and the forming rate is low, the production cycle is long and the cost is high, resulting in poor market competitiveness; finally, the board has defects such as insufficient mechanical strength and poor flame and fire resistance....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B27D1/08B27N3/08B27N3/12B32B21/02B32B21/06B32B21/10B32B3/30B32B37/10B32B37/06B32B33/00C08L97/02C08L23/12C08L29/04C08K13/04C08K7/14C08K3/02C08K5/521C08K3/34C08K3/22
CPCC08L97/02B27D1/04B27D1/08B27N3/08B27N3/12B32B3/30B32B21/02B32B21/06B32B21/10B32B33/00B32B37/06B32B37/10C08L2205/03C08L2201/02C08K2003/2227C08K2003/026B32B2307/734B32B2307/3065B32B2307/558B32B2262/101B32B2262/067B32B2262/14B32B2260/021B32B2250/40C08L23/12C08L29/04C08K13/04C08K7/14C08K3/02C08K5/521C08K3/34C08K3/22
Inventor 王庆中张耀升马文元
Owner 临沂市新天力机械有限公司
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