Soybean-based protein adhesive and preparation method thereof

An adhesive and protein glue technology, applied in the field of fine chemicals, can solve the problems of poor water-resistant bonding strength and high viscosity, and achieve the effects of improving bonding strength, simple production process, and simple preparation method

Inactive Publication Date: 2015-09-30
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-resistant bonding strength of soybean protein adhesives is poor and the viscosity is high, so there are still many problems in its application.

Method used

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  • Soybean-based protein adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Soybean-based protein adhesive, the components and the parts by mass of each component are as follows: 20 parts of soybean powder, 5 parts of polyol polyethylene glycol, 5 parts of sodium lauryl sulfate, and 10 parts of trimethylolpropane triester , 2 parts of urea, 3 parts of carboxyethyl cellulose, 1 part of dioctyl disulfide, 1 part of isocyanate, 1 part of sodium hydroxide, 1 part of dibenzoyl peroxide, 1 part of maleic anhydride, 1 part of diisopropylamine nitrite, 1 part of stabilizer dimethylaniline, 40 parts of water.

[0019] The preparation method comprises the steps of:

[0020] 1) Mix soybean powder with water, then add sodium hydroxide, stir evenly, add sodium lauryl sulfate, trimethylolpropane triester, urea, carboxyethyl cellulose, dioctyl dibutyrate sulfide Carry out graft modification with isocyanate, heat up to 80°C, and stir at 170rpm for 4h;

[0021] 2) Add the remaining components to the solution in step 1), and stir at a speed of 130 rpm to obtai...

Embodiment 2

[0023] Soybean-based protein adhesive, the components and the parts by mass of each component are as follows: 30 parts of soybean powder, 10 parts of polyol polyethylene glycol, 8 parts of sodium lauryl sulfate, and 15 parts of trimethylolpropane triester , 6 parts of urea, 5 parts of carboxyethyl cellulose, 3 parts of dioctyl disulfide, 2 parts of isocyanate, 2 parts of sodium hydroxide, 3 parts of dibenzoyl peroxide, 3 parts of maleic anhydride, 2 parts of diisopropylamine nitrite, 2 parts of stabilizer dimethylaniline, 60 parts of water.

[0024] The preparation method comprises the steps of:

[0025] 1) Mix soybean powder with water, then add sodium hydroxide, stir evenly, add sodium lauryl sulfate, trimethylolpropane triester, urea, carboxyethyl cellulose, dioctyl dibutyrate sulfide Carry out graft modification with isocyanate, heat up to 80°C, and stir at 170rpm for 4h;

[0026] 2) Add the remaining components to the solution in step 1), and stir at a speed of 130 rpm ...

Embodiment 3

[0028] Soybean-based protein adhesive, the components and the parts by mass of each component are as follows: 25 parts of soybean powder, 8 parts of polyol glycerin, 6.5 parts of sodium lauryl sulfate, 12.5 parts of trimethylolpropane triester, 4 parts of urea, 4 parts of carboxyethyl cellulose, 2 parts of dioctyl sulfide, 1.5 parts of isocyanate, 1.5 parts of sodium hydroxide, 2 parts of dibenzoyl peroxide, 2 parts of maleic anhydride, 1.5 parts of diisopropylamine nitrate, 1.5 parts of stabilizer ethylenediamine, 50 parts of water.

[0029] The preparation method comprises the steps of:

[0030] 1) Mix soybean powder with water, then add sodium hydroxide, stir evenly, add sodium lauryl sulfate, trimethylolpropane triester, urea, carboxyethyl cellulose, dioctyl dibutyrate sulfide Carry out graft modification with isocyanate, heat up to 80°C, and stir at 170rpm for 4h;

[0031] 2) Add the remaining components to the solution in step 1), and stir at a speed of 130 rpm to obta...

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Abstract

The invention discloses a soybean-based protein adhesive and a preparation method thereof. The soybean-based protein adhesive is prepared by 20-30 parts of bean flour, 5-10 parts of polyhydric alcohols, 5-8 parts of sodium lauryl sulphate, 10-15 parts of trimethylolpropane triester, 2-6 parts of urea, 3-5 parts of carboxyethyl cellulose, 1-3 parts of vulcanization diethyl succinate, 1-2 part of isocyanate, 1-2 parts of sodium hydroxide, 1-3 parts of dibenzoyl peroxide, 1-3 parts of maleic anhydride, 1-2 parts of nitrite diisopropylamine, 1-2 parts of stabilizers and 40-60 parts of water. The bonding strength, water resistant performance and stable storage performance of the adhesive are improved by taking the abundant and reproducible bean flour as the raw materials and through the property modification methods such as crosslinking and graft copolymerization.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a bean-based protein adhesive and a preparation method thereof. Background technique [0002] Formaldehyde-free polymer-based adhesives are synthetic or natural polymer-based adhesives prepared without using formaldehyde as a raw material. At present, the raw materials of biomass adhesives that the world pays attention to mainly focus on renewable natural polymers such as protein, tannin, starch and lignin. These natural polymers have various functional groups, which provide the possibility for cross-linking modification with other adhesives and compounds. [0003] Starch has the advantages of strong renewable ability, abundant sources, various types, environmental protection and low price. However, due to the poor water resistance and low bonding strength of traditional starch-based adhesives, they have not been widely promoted and used in the wood industry....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/06
Inventor 夏戊君金可心凌云凌天阳
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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