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Preparation method of bamboo-wood composite polyurethane foaming material artificial board

A foamed material, bamboo and wood composite technology, applied in the pretreatment of molding materials, wood processing appliances, manufacturing tools, etc., can solve the problems of inconvenient use and installation, high manufacturing cost, high density, and achieve sound absorption, thermal insulation performance Good, stable structure and dimension, good mechanical properties

Active Publication Date: 2017-01-11
LONGYAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of these materials for building decoration materials has the following defects: First, due to the high density, the weight of the structural board is high, the manufacturing cost is high, and it is inconvenient to use and install; and serious impact on human health

Method used

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  • Preparation method of bamboo-wood composite polyurethane foaming material artificial board

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Raw material preparation: Thin plywood with a thickness of 3mm is selected as the surface material; bamboo silk with a shape size of 100*15*0.35mm is selected, and bamboo chips with a particle size of 0.10mm and foamed polyurethane resin are selected through a 120-mesh sieve. Core material. Polyurethane resin is selected from polymer polyether polyol, and its hydroxyl value index is 400mgKOH / g; foaming agent is fluorodichloroethane (HCFC-141b); catalyst is dimethylamine; stabilizer is triethylenediamine (A33 ); Bamboo shreds and bamboo powder are dried to a moisture content of 12% by drying equipment at 60°C.

[0022] (2) Forming frame: According to the performance requirements of the molding equipment and product needs, the size of the base material can be adjusted to 2440*1220*50mm, and the forming frame is constructed by processing thick veneer or thin plywood with wood rotary cutting.

[0023] (3) Mixing and stirring: Polyurethane resin is made of polymer polye...

Embodiment 2

[0026] (1) Raw material preparation: choose thick veneer with a thickness of 2.5mm as the surface material; choose bamboo silk with a shape size of 50*10*0.25mm, and sieve it into bamboo chips with a particle size of 0.25 mm through 80 meshes And foamed polyurethane resin as the core material. The polyurethane resin is made of polymer polyether polyol, and its hydroxyl value index is 600mgKOH / g; the foaming agent is fluorodichloroethane (HCFC-141b); the catalyst is trimethylamine; the stabilizer is triethylenediamine (A33) ; Wood veneer, bamboo shreds and bamboo powder are dried to a moisture content of 8% by drying equipment at 90°C.

[0027] (2) Forming frame: According to the performance requirements of the molding equipment and product needs, the size of the base material can be adjusted to 2440*1220*35mm, and the forming frame is constructed by processing thick veneer or thin plywood with wood rotary cutting.

[0028] (3) Mixing and stirring: Polyurethane resin is made o...

Embodiment 3

[0031] (1) Raw material preparation: choose thick veneer with a thickness of 2mm as the surface material; choose bamboo silk with a shape size of 10*5*0.10mm, and sieve it with 40 meshes into bamboo chips with a particle size of 0.10mm and Foaming polyurethane resin is the core material. Polyurethane resin is selected from polymer polyether polyol, and its hydroxyl value index is 800mgKOH / g; foaming agent is fluorodichloroethane (HCFC-141b); catalyst is triethylamine; stabilizer is triethylenediamine (A33 ); Wood veneer, bamboo shreds and bamboo powder are dried to a moisture content of 3% by drying equipment at 120°C.

[0032] (2) Forming frame: According to the performance requirements of the molding equipment and product needs, the size of the base material can be adjusted to 2440*1220*20mm, and the forming frame is constructed by processing thick veneer or thin plywood with wood rotary cutting.

[0033] (3) Mixing and stirring: Polyurethane resin is made of polymer polyet...

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Abstract

The invention discloses a preparation method of a bamboo-wood composite polyurethane foaming material artificial board. The artificial board is prepared from a wood veneer, bamboo filaments, bamboo powder and a polyurethane resin foaming material in a composite mode. A rotary cut veneer or thin plywood is adopted for building a molded framework of an outer layer, and a core layer is prepared from bamboo filaments, bamboo scraps and foaming polyurethane resin in a composite mode. The method comprises the operation steps that a thick veneer or thin plywood obtained through wood rotary cut is selected as a surfaced material at first, and the bamboo scraps and the foaming polyurethane resin are used as core materials, wherein the foaming polyurethane resin is prepared from polyurethane resin, a foaming agent, a catalyst and a stabilizing agent; then, the thick veneer or the thin plywood obtained through wood rotary cut is selected for processing and building the molded framework and placed in mold pressing equipment; the foaming polyurethane resin is mixed to be uniform according to the component matching ratio, the bamboo filaments and the bamboo powder are added, the components are mixed and stirred, and the mixture is quantitatively injected into a molding mold; and finally curing molding, aftertreatment and inspection are carried out for storage. The product prepared through the method has the advantages of being low in density, stable in structural size and good in sound absorption, heat preservation and heat insulation effect, and is the ideal material for building non-bearing components and indoor decoration.

Description

technical field [0001] The invention relates to a method for making an artificial board in the field of building materials, in particular to a method for preparing a wood-based board made of bamboo and wood composite polyurethane foam material. Background technique [0002] my country is located in the center of bamboo distribution in the world and is the country with the richest bamboo resources in the world. Bamboo is more and more widely used in all aspects of life, and it also promotes the development of bamboo industry. However, a large amount of bamboo processing The residues are not widely used, and most of them are used as fuel or waste, which causes a waste of resources and serious environmental pollution. If the residues of bamboo processing can be rationally developed and utilized, the economic and social benefits can be better realized, and the virtuous cycle and sustainable development of the bamboo industry can be promoted. [0003] There are some patents or li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/10B27N3/00B27N1/00C08L51/08C08F283/06C08F220/44C08F212/08
CPCB27N1/00B27N3/002B27N3/005B27N3/10C08F283/06C08L51/08C08F220/44C08F212/08
Inventor 苏团侯伦灯于再君
Owner LONGYAN UNIV
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