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Soybean-based plate adhesive and preparation method thereof

A technology of adhesives and soybeans, which is applied in the direction of adhesives, adhesive additives, adhesive types, etc., can solve the problems of adhesive water resistance, harm to human health, non-degradable products, etc. Effects of corrosion, low hydrophilicity, and improved water resistance

Inactive Publication Date: 2017-01-04
QUANJIAO HAIFENG PRINTING PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aldehyde adhesives are used in the largest amount in wood industry adhesives, but they have many disadvantages: the main raw materials are mostly from non-renewable resources such as petroleum and coal; carcinogens (such as formaldehyde) are continuously emitted during production and use, which will harm the human body Healthy; the product is non-degradable and easy to pollute the environment
[0005] The current research methods all focus on modifying the soybean protein in it, but do not involve 40% carbohydrates, causing this component to have no effect on the water resistance of the adhesive after curing, or even have a negative effect, and waste raw materials

Method used

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Embodiment Construction

[0020] A kind of soybean base material adhesive, it is made up of the raw material of following weight part:

[0021] Polyvinyl alcohol 2, defatted soybean powder 170, ferric chloride 0.3, ferrous chloride 0.1, epichlorohydrin 0.8, N methylol acrylamide 2, styrene 16, potassium persulfate 0.1, hemicellulase 3, Polydiphenylmethane diisocyanate 10, 20% hydrochloric acid solution 60.

[0022] A preparation method of the soybean-based substrate adhesive, comprising the following steps:

[0023] (1) Mix the above-mentioned ferric chloride and ferrous chloride, add to 20% hydrochloric acid solution, stir evenly to obtain ferric salt solution;

[0024] (2) Add the above-mentioned defatted soybean powder into distilled water 20 times its weight, stir evenly, add hemicellulase, enzymatically hydrolyze at 50°C for 18 minutes, lower the temperature to 26°C, add the above-mentioned iron salt solution, and keep warm for 30 Minutes, add 3mol / l sodium hydroxide, adjust the pH to 5, add the...

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PUM

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Abstract

The invention discloses a soybean-based plate adhesive which is prepared from the following raw materials in parts by weight: 2-4 parts of polyvinyl alcohol, 170-200 parts of defatted soybean powder, 0.3-0.4 part of ferric chloride, 0.1-0.2 part of ferrous chloride, 0.8-1 part of epoxy chloropropane, 2-3 parts of N-hydroxymethyl acrylamide, 16-20 parts of styrene, 0.1-0.2 part of potassium persulfate, 3-4 parts of hemicellulose, 10-19 parts of polydiphenylmethane diisocyanate and 60-70 parts of 20-30% hydrochloric acid solution. The styrene copolymer modified soybean-based adhesive disclosed by the invention has the characteristics of rare equipment corrosion, relatively long working life and storage period, no formaldehyde, low content of residual monomers, environment friendliness, good water resistance and the like.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a soybean-based material adhesive and a preparation method thereof. Background technique [0002] Aldehyde adhesives are used in the largest amount in wood industry adhesives, but they have many disadvantages: the main raw materials are mostly from non-renewable resources such as petroleum and coal; carcinogens (such as formaldehyde) are continuously emitted during production and use, which will harm the human body Healthy; the product is non-degradable and easy to pollute the environment. Therefore, the research and development of biomass-based adhesives to replace aldehyde-based adhesives has received global attention. Among various biomass materials, soybeans (including genetically modified soybeans) have the characteristics of large yield, low cost, and high plant protein content, and are good raw materials for adhesives; study soybean-based adhesives to make them replace ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/00C09J11/04C09J11/08C09J11/06C08F285/00C08F212/08C08H1/00
CPCC09J151/00C08F285/00C08H1/00C09J11/04C09J11/06C09J11/08
Inventor 毕全中
Owner QUANJIAO HAIFENG PRINTING PACKAGING
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