A peanut meal-based protein adhesive and its preparation method and application
A peanut meal and adhesive technology, which is applied in the field of vegetable protein-based adhesive preparation, can solve the problems of hindering the development, popularization and application of vegetable protein-based adhesives, poor water resistance and high cost, and achieves good high-speed die-cutting performance, Avoid the harm of formaldehyde and overcome the effect of poor water resistance
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[0031] In yet another specific embodiment of the present invention, the preparation method of the above-mentioned peanut meal-based protein adhesive is provided, comprising the following steps:
[0032] S1. Take peanut meal powder and pass through a 150-200 mesh sieve, add the sieved peanut meal powder into water and heat up to 30-40°C, stir and add cellulase for 0.4-1 hour, then stir and add trypsin to continue the enzyme Solution 0.5 ~ 1h to get solution I;
[0033] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 70-80° C., keep for 0.5-1 hour to obtain solution II;
[0034] S3. When solution II cools down to 30-35°C, stir and add ammonium zirconium carbonate and water-based epoxy resin as a crosslinking agent, and maintain 30-35°C for 0.4-1.2 hours to obtain solution III;
[0035] S4. Add lithium-based bentonite and nano-silicon carbide to solution III, stir for 5-10 minutes, and stir evenly to obtain the peanut meal-based protein adhesive.
[0...
Embodiment 1
[0046] A peanut meal-based protein adhesive prepared from the following raw materials in parts by weight:
[0047] 30 parts of peanut meal, 0.5 parts of trypsin, 0.4 parts of cellulase, 0.6 parts of sodium dodecylsulfonate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium-based bentonite, 1 part of nano-silicon carbide , 120 parts of water.
[0048] Concrete preparation method comprises steps as follows:
[0049] S1. Take peanut meal powder and pass through a 200-mesh sieve, add the sieved peanut meal powder into water and raise the temperature to 35°C, stir and add cellulase for 0.5h of enzymolysis, then stir and add trypsin to continue enzymolysis for 0.5h to obtain a solution 1; Stirring speed is 60rpm;
[0050] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 75° C., stirring at a speed of 100 rpm, and keep for 1 hour to obtain solution II;
[0051] S3. When solution II is cooled to 30°C, stir (sti...
Embodiment 2
[0055] A peanut meal-based protein adhesive prepared from the following raw materials in parts by weight:
[0056] 30 parts of peanut meal, 0.5 parts of trypsin, 0.4 parts of cellulase, 0.6 parts of sodium dodecylsulfonate, 4 parts of ammonium zirconium carbonate, 8 parts of water-based epoxy resin, 2 parts of lithium-based bentonite, 1 part of nano-silicon carbide , 120 parts of water.
[0057] Concrete preparation method comprises steps as follows:
[0058] S1. Take peanut meal and pass through a 150-mesh sieve, add the sieved peanut meal powder into water and raise the temperature to 35°C, stir and add cellulase for 0.5h of enzymolysis, then stir and add trypsin for 0.5h of enzymolysis to obtain a solution 1; Stirring speed is 60rpm;
[0059] S2. Add sodium dodecylsulfonate to solution I and raise the temperature to 75° C., stirring at a speed of 100 rpm, and keep for 1 hour to obtain solution II;
[0060] S3. When solution II is cooled to 30°C, stir (stirring speed: 80r...
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