Production method of aldehyde-free bamboo floor

A production method and technology of bamboo flooring, applied in the field of plywood manufacturing, can solve the problems of poor bonding performance, environmental pollution, poor water resistance, etc., and achieve the effects of good environmental protection, no pollution of the environment, and good water resistance

Active Publication Date: 2013-06-12
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the existing bamboo flooring production process of releasing free formaldehyde, polluting the environment, poor environmental protection, poor water resistance, and poor bonding p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of production method of formaldehyde-free bamboo floor, described production method comprises the following steps:

[0032] ①Preparation of modified soybean protein glue, the process is as follows:

[0033] Modified soybean protein glue is prepared from the following ingredients in parts by mass: 100 parts of water; 5-60 parts of soybean protein powder; 0.01-15 parts of modifier; 0-5 parts of compound protease; 0-15 parts of pH regulator ; 0-15 parts of viscosity regulator; 0.1-15 parts of anti-corrosion and anti-mold agent; 0-10 parts of auxiliary agent; 0-10 parts of filler.

[0034] The preparation of the modified soybean protein gum is realized through the following steps:

[0035] Weigh the raw materials according to the number of parts by mass, add water to the reaction kettle and raise the temperature to 30-70°C, then add soybean protein powder under stirring, add pH regulator after stirring evenly; add modifier, compound after reacting for 10-30min Prot...

Embodiment 2

[0056] In the present embodiment, in step ①, the modified soybean protein glue is formulated from the following parts by mass: 100 parts of water; 5 parts of soybean protein powder; 0.01 part of modifier; 0.1 part of antiseptic and antifungal agent;

[0057] The preparation of the modified soybean protein gum is realized through the following steps:

[0058] Weigh the raw materials according to the number of parts by mass, add water to the reaction kettle and raise the temperature to 30°C, then add soybean protein powder under stirring, add modifier after stirring evenly, keep warm for 30 minutes, then add anti-corrosion and anti-mold agent, stir Uniformly, obtain modified soybean protein glue;

[0059] The appearance of the modified protein glue is light brown or milky white, the pH value is 3, the solid content is 15%, and the viscosity is 400mPa.s;

[0060] In step ②, the rotation speed is 50 rpm, and the time is 5 minutes.

[0061] In step 3., 3.1, glue the surface of t...

Embodiment 3

[0065] In this embodiment, in step ①, the modified soybean protein glue is prepared from the following parts by mass: 100 parts of water; 60 parts of soybean protein powder; 15 parts of modifier; 5 parts of compound protease; 15 parts of pH regulator 15 parts of viscosity regulator; 15 parts of anti-corrosion and anti-mold agent; 10 parts of auxiliary agent; 10 parts of filler.

[0066] The preparation of the modified soybean protein gum is realized through the following steps:

[0067] Weigh the raw materials according to the number of parts by mass, add water to the reaction kettle and raise the temperature to 70°C, then add soybean protein powder under stirring, add pH regulator after stirring evenly; add modifier, compound protease, viscosity adjustment after reacting for 30 minutes After 180 minutes of heat preservation reaction, add preservatives and fillers, stir evenly, and obtain modified soybean protein glue;

[0068] The appearance of the modified protein glue is l...

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Abstract

The invention relates to a production method of an aldehyde-free bamboo floor, which comprises the following steps that firstly, modified soyabean albumen glue is prepared by components in parts by mass as follows: 100 parts of water, 5-60 parts of soybean albumen powder, 0.01-15 parts of a modifying agent, 0-5 parts of compound protease, 0-15 parts of a pH (potential of hydrogen) modifier, 0-15 parts of a viscosity modifier, 0.1-15 parts of an antiseptic mildew preventive, 0-10 parts of an auxiliary and 0-10 parts of a filler; secondly, the modified soyabean albumen glue is sheared to reduce viscosity by a mixer or a blending machine at the revolving speed of 50-300 revolutions per minute for 5 to 30 minutes; and thirdly, bamboo chips are used as a raw material and manufactured into the bamboo floor through processes of gluing, ageing, assembling and hot pressing. By means of the production method, free formaldehyde is absent, the environmental pollution is avoided, the environmental protection property is good, the water resisting property is good, and the gluing property is excellent.

Description

technical field [0001] The invention belongs to the plywood manufacturing technology in the wood-based panel industry, and the patent classification number is B27D. It can be used as a floor, a decorative board, a furniture panel, etc., and particularly relates to a production method of a bamboo floor. Background technique [0002] At present, the adhesives used in the production of bamboo flooring are mainly urea-formaldehyde resin and phenolic resin, which will continuously release free formaldehyde during production and use, which not only pollutes the environment, but more importantly, it has strong harm to the human body. Formaldehyde-free bamboo flooring with vegetable glue as the adhesive has become a top priority. Invention patent CN201210104114.1 discloses a method for producing wood-based panels with formaldehyde-free adhesives, CN200610097957.8 discloses an industrial production method for formaldehyde-free bean glue instant poplar type II plywood, and CN20071016...

Claims

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Application Information

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IPC IPC(8): B27M3/04B27D1/08C09J189/00E04F15/04
Inventor 李琴袁少飞汪奎宏张建
Owner ZHEJIANG FORESTRY ACAD
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