Preparation method of water-resistant and anti-oxidative protein-based adhesive

A technology of antioxidant protein and base glue, applied in the preparation of animal glue or gelatin, protein adhesives, adhesives, etc., can solve the problems of low bonding strength, cracking and falling off, and poor water resistance.

Inactive Publication Date: 2018-10-12
陈毅忠
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a water-resistant and anti-oxidation protein-based adhesive for the common problems of low bonding strength, poor water resistance, and easy cracking and falling off after being oxidized in common biomass plant protein adhesives. Preparation

Method used

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Experimental program
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Effect test

Embodiment Construction

[0022] Choose healthy adult meat rabbits, inject sterilized zinc sulfate subcutaneously into the abdomen every day, and the injection dose is 100 mg / kg. After continuous injection for one week, take out the meat rabbit liver, grind the meat rabbit liver with a tissue grinder for 30-40 minutes, and then obtain the crushed product; The pulverized material and 5,5'-dithiobis(2-nitrobenzoic acid) were mixed at a mass ratio of 1:5, and then ground at 0-4°C for 15-20 minutes to obtain a grinding liquid, which was heated to 78 ~80°C, heat preservation treatment for 5~7min, then cool down to 0~4°C again, transfer to a centrifuge, and centrifuge at a speed of 8000~9000r / min for 10~15min, separate and remove the lower layer of sediment, obtain the upper layer extract, and put it into In a rotary evaporator, heat up to 50-60°C, and concentrate by rotary evaporation for 1-2 hours to obtain a concentrate; mix the soy protein isolate with the above-mentioned concentrate and water in a mass r...

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Abstract

The invention relates to a preparation method of a water-resistant and anti-oxidative protein-based adhesive and belongs to the technical field of wood adhesive preparation. The preparation method comprises steps as follows: firstly, metallothionein is extracted from the liver of a meat rabbit and mixed with isolated soybean protein for modification, and pre-modified isolated soybean protein is obtained; pine sawdust is taken as a raw material and firstly subjected to ethanol wet milling pretreatment, the pretreated pine sawdust and an organic carboxylic acid solution are blended and subjectedto high-temperature and high-pressure cooking, modified pine sawdust is obtained, finally, the modified pine sawdust is subjected to blending reaction with the pre-modified isolated soybean protein,tourmaline powder and other auxiliary materials, and the water-resistant and anti-oxidative protein-based adhesive is obtained. The prepared water-resistant and anti-oxidative protein-based adhesive is high in adhesion strength, good in water resistance and high in oxidation resistance, is not prone to cracking and falling and has broad application prospect.

Description

technical field [0001] The invention relates to a method for preparing a water-resistant and anti-oxidation protein-based adhesive, which belongs to the technical field of wood adhesive preparation. Background technique [0002] Adhesives and bonding technology are the key to wood-based panel manufacturing. With the improvement of environmental protection requirements, the wood-based panel industry is also actively using low-formaldehyde and formaldehyde-free adhesives. The development of biomass formaldehyde-free adhesives is conducive to saving resources and protecting the environment, which is in line with the sustainable development trend of the adhesive industry. Therefore, the preparation of biomass formaldehyde-free wood adhesives from natural polymers has gradually become a research hotspot and development trend in the field of wood adhesives. Biomass-based adhesives can be divided into three categories according to their raw materials, namely protein glue, carbohyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J197/02C09J11/04
CPCC09J189/00C08K2003/387C08L2201/08C08L2205/025C08L2205/03C09J11/04C08L89/00C08L97/02C08K3/38
Inventor 陈毅忠林茂梅
Owner 陈毅忠
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