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
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[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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