Preparation method of aldehyde-free modified soybean protein adhesive

A soy protein and adhesive technology, which is applied in the field of preparation of aldehyde-free modified soy protein adhesive, can solve the problems that the water-resistant adhesive strength of soy protein glue cannot meet the requirements of industrial application, hinder the popularization of soy glue, etc. Good component compatibility, good stability, improved adhesive strength and water resistance

Inactive Publication Date: 2019-07-12
福建省精材艺匠智能家居有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the water-resistant bonding strength of soybean protein glue cannot meet the

Method used

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  • Preparation method of aldehyde-free modified soybean protein adhesive
  • Preparation method of aldehyde-free modified soybean protein adhesive

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Experimental program
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Effect test

Embodiment 1a

[0032] Embodiment 1a: a kind of preparation method of aldehyde-free modified soybean protein adhesive, comprises the following steps:

[0033] (1) Mix defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride and water, stir and react at 50°C for 10 hours, and cool naturally to room temperature;

[0034] (2) Put premixed zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer into the reaction system of step (1), stir and react at 70°C for 2hr, and cool naturally to room temperature;

[0035] The mass ratio of defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride, water, zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer is 44:4.5:0.6:0.24:100:1.5 :2.5:8.

Embodiment 1b

[0036] Embodiment 1b: a kind of preparation method of aldehyde-free modified soybean protein adhesive, comprises the following steps:

[0037] (1) Mix defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride and water, stir and react at 45°C for 12 hours, and cool naturally to room temperature;

[0038] (2) Put premixed zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer into the reaction system of step (1), stir and react at 65°C for 3hr, and cool to room temperature naturally;

[0039] The mass ratio of defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride, water, zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer is 40:4:0.5:0.2:100:1 :2:7.

Embodiment 1c

[0040] Embodiment 1c: a kind of preparation method of aldehyde-free modified soybean protein adhesive, comprises the following steps:

[0041] (1) Mix defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride and water, stir and react at 52°C for 9 hours, and cool naturally to room temperature;

[0042] (2) Put premixed zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer into the reaction system of step (1), stir and react at 72°C for 1hr, and cool naturally to room temperature;

[0043] The mass ratio of defatted soybean protein powder, urea, calcium dihydrogen phosphate, sodium chloride, water, zinc carbonate, nicotinamide and P123 type PEO-PPO-PEO block copolymer is 50:5:1.0:0.3:100:2 :3:9.

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Abstract

The invention discloses a preparation method of an aldehyde-free modified soybean protein adhesive. The preparation method comprises the following steps of (1) mixing defatted soybean protein powder,urea, calcium dihydrogen phosphate, sodium chloride and water, stirring for reacting at 45-52 DEG C for 9-12 hr, and naturally cooling to room temperature; (2) putting premixed zinc carbonate, nicotinamide and a P123 type PEO-PPO-PEO embedded segment copolymer into a reaction system of step (1), stirring for reacting at 65-72 DEG C for 1-3hr, naturally cooling to room temperature, wherein the massratio of defatted soy protein powder, urea, calcium dihydrogen phosphate, sodium chloride, water, zinc carbonate, niacinamide to the P123 type PEO-PPO-PEO embedded segment copolymer is 40-50:4-5:0.5-1.0:0.2-0.3:100:1-2:2-3:7-9; the water-resistant bonding strength is improved.

Description

technical field [0001] The invention relates to a preparation method of an aldehyde-free modified soybean protein adhesive. Background technique [0002] As one of the raw materials for the development of the wood industry, adhesives have been used for a long time. About 600 years ago, people used natural adhesives to bond daily necessities. In the 1980s, with the progress of society and the rapid development of science and technology, the use of adhesives has also penetrated into all aspects of national life, which has played a role in promoting the rapid development of the economy. In the late 20th century, "trialdehyde glue" mainly composed of polymer materials and composite materials gradually entered people's lives. The raw material of trialdehyde glue comes from petroleum, which is relatively rich in petroleum resources in my country and has excellent performance, which makes trialdehyde glue occupy an important position in industrial production. However, these mate...

Claims

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Application Information

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IPC IPC(8): C09J189/00C09J11/06C09J11/04C09J11/08
CPCC09J11/04C09J11/06C09J11/08C09J189/00C08L71/02C08K3/26C08K5/3432
Inventor 不公告发明人
Owner 福建省精材艺匠智能家居有限公司
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