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Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof

A wood fiber and flame retardant foam technology is applied in the field of wood fiber reinforced flame retardant foam composite panels, which can solve the problems of low cost, high cost, high toxicity, etc., and achieves good flame retardancy, improved compression resistance, and low toxic release. Effect

Inactive Publication Date: 2012-09-26
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the disadvantages of high cost and high toxicity of the existing foam composite board, the present invention proposes a wood fiber reinforced flame-retardant foam composite board and its preparation method , has the characteristics of relatively low cost and low toxicity

Method used

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  • Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof
  • Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof
  • Wood fiber reinforced flame retardant foam composite plate and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: Preparation of wood fiber-reinforced flame-retardant foam material First, add 0.25 parts of γ-aminopropyltriethoxysilane coupling agent to the wood fiber, stir evenly, and dry at 60° C. for use. Then get 60 parts of phenolic resin, then add 6 parts of phosphoric acid curing agent, 2 parts of nitrile rubber, 4 parts of cyclopentane foaming agent and 28 parts of wood fiber after coupling agent treatment. Put the mixture in a kneader at room temperature and knead evenly, then take it out and place it in a foaming mold at 70°C for foaming and solidification.

[0034] Step 2: Preparation of Wood Fiber Reinforced Flame Retardant Foam Composite Sheets

[0035] Cut the foam material obtained in the first step into a certain shape, coat the upper and lower sides with a certain quality of white latex respectively, use a 2mm thick single-layer wood board for the upper and lower panels, and coat the contact surfaces of the wood board and the foam material with a certain qua...

Embodiment 2

[0037] Step 1: Preparation of Wood Fiber Reinforced Flame Retardant Foam

[0038] First, add 0.5 parts of coupling agent γ-chloropropyltriethoxysilane to the wood fiber, stir evenly, and then dry at 60°C. Then take a certain amount of melamine-modified urea-formaldehyde resin, then add successively, then take 55 parts of phenolic resin, then add 10 parts of p-toluenesulfonic acid curing agent, 5 parts of nitrile rubber, and 10 parts of cyclopentane blowing agent And 20 parts of wood fiber after coupling agent treatment. Put the mixture in a kneader at room temperature and knead evenly, then take it out and place it in a foaming mold at 70°C for foaming and solidification.

[0039] Step 2: Preparation of Wood Fiber Reinforced Flame Retardant Foam Composite Sheets

[0040] Cut the foam material obtained in the first step into a certain shape, coat the upper and lower sides with a certain quality of phenolic glue, use 4mm thick high-density flame-retardant plates for the upper ...

Embodiment 3

[0042] Step 1: Preparation of Wood Fiber Reinforced Flame Retardant Foam

[0043] First, add 0.5 parts of coupling agent γ-chloropropyltriethoxysilane to the wood fiber, stir evenly, and then dry at 60°C. Then take a certain amount of melamine-modified urea-formaldehyde resin, then add 75 parts of phenolic resin in turn, then add 9 parts of p-toluenesulfonic acid curing agent, 3 parts of nitrile rubber, and 4 parts of cyclopentane blowing agent And 9 parts of wood fiber after coupling agent treatment. Put the mixture in a kneader at room temperature and knead evenly, then take it out and place it in a foaming mold at 70°C for foaming and solidification.

[0044] Step 2: Preparation of Wood Fiber Reinforced Flame Retardant Foam Composite Sheets

[0045] Cut the foam material obtained in the first step into a certain shape, and coat the upper and lower sides with a certain quality of urea-formaldehyde glue respectively. The upper and lower panels are made of 0.5mm thick high-d...

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Abstract

The invention relates to a wood fiber reinforced flame retardant foam composite plate and a preparation method thereof. The external layer of the composite plate is a wood panel, and the foam core plate in the internal layer is a wood fiber reinforced phenol formaldehyde foam material or a melamine modified formaldehyde foam material. The wood fiber is treated by a coupling agent. The invention further relates to a manufacturing method of the plate. The wood panel is adhered to the external layer panel of the foam core plate. The plate can be manufactured by performing lamination thermal composition on the materials by using an adhesive, and also can be manufactured by directly foaming between fixed dual-layer panels. The foam core plate uses wood fiber reinforced phenol formaldehyde foamor melamine modified formaldehyde foam material. The flame retardant performance can accord with the specified standard. The foam core plate is flame retardant and small in smoke amount, generates noharmful gas, and meets requirement of environmental friendliness, so that the composite plate has excellent sound absorption and heat insulation properties. The fiber reinforced foam base material has an excellent mechanical property.

Description

technical field [0001] The invention belongs to the technical field of bio-based flame-retardant composite foam materials, and in particular relates to a wood fiber-reinforced flame-retardant foam composite board. Background technique [0002] Foam composite board is a composite material formed by gluing and pressing two materials inside and outside or directly foaming the inner layer. The outer layer of the board is made of high-strength material, and the inner layer is made of lightweight heat-insulating foam material. Foam composite sheet has developed rapidly since its inception more than 40 years ago, and has been widely used in the United States, Japan, Britain, Australia and other countries. my country began to import production technology and equipment from the United States, South Korea, Austria and other countries in the early 1980s, and now there are nearly a thousand units engaged in production and scientific research. At present, domestic companies producing an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/04B32B21/04
Inventor 储富祥王春鹏李守海张伟马玉峰许玉芝金立维赵临五
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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