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Method for preparing water-resistant and weather-resistant bamboo floor by using biochemical modified soybean protein adhesive

A soybean protein glue, soybean protein technology, applied in the direction of protein adhesives, adhesives, wood veneer bonding, etc., can solve the problems of cracking, swelling deformation, unable to meet the needs of users, and achieve hydrophilic base. The effect of reducing the content of agglomerates, increasing the resistance to deformation, and improving the weather resistance

Inactive Publication Date: 2018-11-06
安徽宏润工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current bamboo flooring is used in indoor natural environments. If it is used in harsh environments such as outdoor or indoor humidity and heat, it is prone to problems such as swelling, deformation or cracking, which cannot meet the needs of users.

Method used

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  • Method for preparing water-resistant and weather-resistant bamboo floor by using biochemical modified soybean protein adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing a water-resistant and weather-resistant bamboo floor with a biochemically modified soybean protein adhesive, comprising the steps of:

[0026] (1) Preparation of environmentally friendly soybean protein adhesive:

[0027] Put the soybean protein hydrolyzate in a constant temperature tank at 34-36°C, adjust the pH to 7.5-8.5, add 2 parts of sodium dodecylbenzenesulfonate under stirring, stir in a constant temperature water bath for 1 hour, then raise the temperature to 50-53°C, add 1 Stir for 13 minutes with 1 part of sodium sulfite, adjust the pH to 7.5-8.5, then raise the temperature to 90-92°C, add 8 parts of polyvinyl alcohol and stir for 25 minutes, add 7 parts of glycerin and stir for 15 minutes, cool and discharge;

[0028] (2) Dipping process:

[0029] Immerse the dried carbonized bamboo into the environmentally friendly soybean protein adhesive obtained in (1), pre-treat the bamboo strips for 15 minutes at a dipping temperature of 34-36°C...

Embodiment 2

[0041] A method for preparing a water-resistant and weather-resistant bamboo floor with a biochemically modified soybean protein adhesive, comprising the steps of:

[0042] (1) Preparation of environmentally friendly soybean protein adhesive:

[0043] Put the soybean protein hydrolyzate in a constant temperature tank at 34-36°C, adjust the pH to 7.5-8.5, add 3 parts of sodium dodecylbenzenesulfonate under stirring, stir in a constant temperature water bath for 2 hours, then raise the temperature to 50-53°C, add 2 Stir with 1 part of sodium sulfite for 13 minutes, adjust the pH to 7.5-8.5, then raise the temperature to 90-92°C, add 9 parts of polyvinyl alcohol and stir for 30 minutes, add 8 parts of glycerin and stir for 20 minutes, cool and discharge;

[0044] (2) Dipping process:

[0045] Immerse the dried carbonized bamboo into the environmentally friendly soybean protein adhesive obtained in (1), pre-treat the bamboo strips at a dipping temperature of 34-36°C for 25 minute...

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Abstract

The invention discloses a method for preparing a water-resistant and weather-resistant bamboo floor by using a biochemical modified soybean protein adhesive. The method includes the steps that dried carbonized bamboo is impregnated into an environment-friendly soybean protein adhesive, and after bamboo strip impregnation pretreatment is carried out, low temperature drying is performed; the impregnated bamboo strips are finely planed, glued and assembled, the assembled plate blanks are tied with ropes, are firstly pre-pressed, and then sent to a hot press, and the hot pressing temperature and pressure are set for hot pressing; and after the hot-pressed bamboo floor is cooled, sanding, end milling, and surface coating are performed, and the bamboo floor is obtained. After original bamboo issubjected to carbonized treatment, the degree of fiber damage is higher; impregnation pretreatment is performed on the carbonized bamboo strips by the environment-friendly soybean protein adhesive, sothat the weather-resistant performance of the bamboo floor is improved; and then the bamboo floor is prepared by the hot pressing process, hot pressing can enable bamboo sheets to be in contact withthe adhesive more closely, cell cavities in the bamboo cell structure are gradually and completely filled and densified, therefore the bonding ability between the bamboo sheets is improved, and the deformation resisting capability of the material is enhanced.

Description

technical field [0001] The invention belongs to the technical field of bamboo powder processing, and in particular relates to a method for preparing a water-resistant and weather-resistant bamboo floor with a biochemically modified soybean protein adhesive. Background technique [0002] Bamboo is a natural structural composite material. Due to its strong waterproof performance, good elasticity, high strength, small specific gravity, fast growth rate and low price, bamboo is getting more and more attention in the material industry, and my country is a big bamboo-producing country. The development of bamboo processing industry in our country is also very rapid. [0003] In recent years, with the comprehensive development and utilization of bamboo, the contradiction between supply and demand of wood in my country has been alleviated to a certain extent. As a new type of building decoration material, bamboo flooring has become one of the ideal choices of flooring materials for p...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B27J1/00B27K3/04B27K3/52B27K5/04B27K9/00C09J189/00C09J129/04
CPCB27D1/04B27D1/08B27J1/00B27K3/04B27K3/52B27K5/04B27K9/002C09J189/00C08L29/04C08K5/053B27N3/02
Inventor 宋迎楼宋运宁
Owner 安徽宏润工艺品有限公司
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