Method for preparing bamboo base polyvinyl chloride composite board

A polyvinyl chloride and composite board technology, used in flat products, manufacturing tools, pretreatment of molding materials, etc., can solve the problems of unstable mechanical properties, complex processing process, high material requirements, and improve the anti-mold and moth resistance. , The preparation process is simple and the process is clear.

Inactive Publication Date: 2008-08-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN101007418 discloses a preparation method of wood-plastic and bamboo-plastic composite reinforced boards, using relatively straight and easy-to-peel tree branches or shrub stems and plastics as raw materials, peeling trees or shrubs to remove leaves, and grinding The rolls are bundled, cut into slices, paved by hand according to the characteristics of the raw materials and the resin content, and hot-pressed into boards; this method has high requirements for materials and complicated processing, and because no mold is used, the product needs to be followed Edge cutting, sanding, longitudinal cutting and other processing
The above methods all use the hand lay-up molding process after the bamboo raw material is processed into a specific shape, and the mechanical properties of the product are unstable.
In addition, there is no report on how to make full use of various bamboo industry processing residues as raw materials for board processing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a kind of preparation method of bamboo-based polyvinyl chloride composite board, carries out following steps successively:

[0026] 1), raw material crushing:

[0027] The bamboo chips are crushed into bamboo particles with a particle size of 0.5mm, and the PVC (polyvinyl chloride) is crushed into PVC particles with a particle size of 0.2mm.

[0028] 2) Bamboo granules anti-mildew, anti-moth and waterproof treatment:

[0029] First, the phenolic resin and sodium pentachlorophenate with a mass concentration of 0.2% are mixed into a solution according to a mass ratio of 10:90, as an anti-mildew and anti-moth agent. The bamboo particles obtained in the above step 1) were soaked in the anti-mold and moth-proof agent for 5 minutes; then the above-mentioned bamboo particles after the anti-mold and anti-mite treatment were dried to a moisture content of 3% to obtain dried bamboo particles.

[0030] The paraffin emulsion with a mass concentration of 9% is used a...

Embodiment 2

[0040] Embodiment 2, a kind of preparation method of bamboo-based polyvinyl chloride composite board, carries out following steps successively:

[0041] 1), raw material crushing:

[0042] The bamboo chips are crushed into bamboo particles with a particle size of 1 mm, and PVC (polyvinyl chloride) is crushed into PVC particles with a particle size of 0.3 mm.

[0043] 2) Bamboo granules anti-mildew, anti-moth and waterproof treatment:

[0044] First, the phenolic resin and the sodium pentachlorophenate with a mass concentration of 0.2% are mixed into a solution according to a mass ratio of 8:92, and used as an anti-mildew and anti-moth agent. The bamboo granules obtained in the above step 1) were soaked in the anti-mildew and anti-moth agent for 4 minutes; then the above-mentioned bamboo granules after the anti-mildew and anti-moth treatment were dried until the moisture content was 2% to obtain dried bamboo granules.

[0045] Paraffin wax emulsion with a mass concentration o...

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Abstract

The invention discloses a preparation method of a bamboo base polyvinyl chloride composite board, which comprises the following steps: 1)raw material crashing: crashing bamboo sawdust into bamboo particles with a particle size of less than or equal to 1.2mm, crashing polyvinyl chloride into polyvinyl chloride particles with the particle size of less than or equal to 0.5mm; 2) mildewproof, mothproof and waterproof treatment of bamboo particles; 3)batch mixing: taking the treated bamboo particles derived from step 2) and the polyvinyl chloride particles derived from step 1) as raw materials, mixing the raw materials and flame retardant; 4) hot pressing: preheating the compound derived from step 3) at a temperature of 170-185 DEG C for 3-5min, paving plate blank, hot press forming and then deriving the bamboo base polyvinyl chloride composite board. The adoption of the preparation method of the invention can efficiently use the residue produced in bamboo processing industry-bamboo sawdust and cause the prepared bamboo base polyvinyl chloride composite board to have stable performance.

Description

technical field [0001] The invention belongs to the field of artificial composite boards, in particular to a preparation method of bamboo-based polyvinyl chloride composite boards. Background technique [0002] Both the area and the types of bamboo resources in China rank first in the world. At present, there are hundreds of various types of bamboo processing enterprises in the country, and these enterprises produce a large number of bamboo processing residues of different sizes in the production process; at present, the domestic utilization of bamboo processing residues is mainly incineration to produce heat , but this method is neither economical nor easy to cause environmental pollution. Therefore, using all kinds of bamboo industry processing residues as raw materials for board processing has important resource utilization value and environmental protection significance. [0003] Take bamboo as the technology of resin-based composite reinforcing material at present, do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N1/00B27N1/02B27N3/08
Inventor 王会盛奎川常蕊杨波钱湘群
Owner ZHEJIANG UNIV
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