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Preparation method of bacteriostatic isolated soy protein adhesive

A soybean protein isolate and adhesive technology, which is applied in the preparation of protein adhesives, animal glue or gelatin, adhesives, etc., can solve the problems of poor corrosion resistance and low bonding strength, so as to improve water resistance, increase crosslinking probability, increase The effect of large adhesive properties

Active Publication Date: 2012-08-15
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of preparation method of bacteriostatic soybean protein isolate adhesive in order to solve the problem that the existing soybean protein isolate adhesive has low bonding strength and poor corrosion resistance

Method used

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  • Preparation method of bacteriostatic isolated soy protein adhesive
  • Preparation method of bacteriostatic isolated soy protein adhesive

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specific Embodiment approach 1

[0007] Embodiment 1: The preparation method of a bacteriostatic soybean protein isolate adhesive of this embodiment is carried out according to the following steps: 1. Add 1 g of soybean protein isolate to 10-14 mL of water, and stir evenly to obtain a soybean protein isolate solution; 2. Put the isolated soybean protein solution obtained in step 1 in an ultrasonic cleaner at a temperature of 45-55°C and ultrasonically treat it with a power of 100-120W for 50-70 minutes; 3. Add ten Sodium dialkylbenzenesulfonate, stir for 0.5~2h, then add boric acid and stir for 0.5~3h, then add 1,2-benzisothiazolin-3-one (BIT) and Japonica japonica extract, stir evenly Obtain; Wherein the addition quality of sodium dodecylbenzenesulfonate is 0.5%~1.5% of the quality of soybean protein isolate solution, the addition quality of boric acid is 4%~6% of the quality of soybean protein isolate solution; 1,2-benzo The added mass of isothiazolin-3-one is 0.1%-0.5% of the isolated soybean protein; the ...

specific Embodiment approach 2

[0010] Embodiment 2: This embodiment differs from Embodiment 1 in that in step 1, the isolated soybean protein and water are weighed according to the ratio of adding 12.5 mL to 13.5 mL of water to 1 g of isolated soybean protein. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0011] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, the soybean protein isolate and water are weighed according to the ratio of adding 1g of soybean protein isolate to 12.5mL of water. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a preparation method of bacteriostatic isolated soy protein adhesive. The invention mainly aims to solve the problems that the existing isolated soy protein adhesive has low bonding strength and poor rot resistance. The preparation method in the invention comprises the following steps: firstly, adding water into isolated soy protein, so as to obtain isolated soy protein solution; secondly, carrying out ultrasonic processing on the isolated soy protein solution; thirdly, adding sodium dodecyl benzene sulphonate into the isolated soy protein solution and mixing, then adding boric acid and mixing, and then adding 1, 2-benzo vary thiazole-3-ketone and chamaecyparis pisifera extract, and mixing to be uniform, so as to obtain the bacteriostatic isolated soy protein adhesive. The isolated soy protein adhesive in the invention has high bonding strength, good rot resistance, zero formaldehyde release and less corrodibility, is environment-friendly and can be used for the production of cementing woodiness and plywood.

Description

Technical field: [0001] The invention relates to a preparation method of a soybean protein isolate adhesive Background technique: [0002] As people pay more and more attention to the protection of ecological environment, artificial plywood is getting more and more attention from the development of wood industry, construction and furniture industry. However, the wood-based panels produced with "trialdehyde" adhesives tend to release harmful gases such as free formaldehyde, pollute the air, and endanger human health. Soy protein isolate adhesives have been paid more and more attention due to their advantages of environmental protection, wide range of sources, and moderate cost. However, the existing soy protein isolate adhesives have the disadvantages of low bonding strength and poor corrosion resistance, and cannot be used in wood-based panels. Promote apps. The existing modification method is to use chemical methods such as acid, alkali, urea or surfactant to modify the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J11/06B27D1/08
Inventor 刘志明沈江华王海英牛晶
Owner NORTHEAST FORESTRY UNIVERSITY
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