Process for preparing waterborne labeling agent by using ultrasonic-microwave synergizing method
An ultrasonic and labeling agent technology, which is applied in the field of preparing water-based labeling agents by the ultrasonic-microwave synergistic method, can solve the problems of thinning, machine pollution, splashing out, etc., to improve film-forming performance, enhance synergy, and improve adhesion The effect of combined ability
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Embodiment 1
[0024] (1) Pretreatment of gelatin: add 100g of edible gelatin to water of 8 times the weight, stir and disperse evenly, then place it in an ultrasonic-microwave collaborative extraction apparatus, and set the ultrasonic frequency to 40kHz, ultrasonic power to 50W, microwave frequency to 2450MHz, and microwave power to 700W , after reflux treatment for 5 minutes, add 5 g of hydrolyzed polymaleic anhydride, stir evenly, continue to reflux treatment for 10 minutes, the resulting mixture is concentrated under reduced pressure to make a paste, and the paste is naturally cooled to room temperature and then sent to a freeze dryer to dry the resulting solid Grinding into granules;
[0025] (2) Chemical modification of cetyl alcohol: mix 10g cetyl alcohol and 10g L-pyroglutamic acid, add absolute ethanol to dissolve, then add concentrated sulfuric acid dropwise to adjust the pH value of the solution to 4-5, and heat to reflux Insulate and stir, stop heating after the reaction is over,...
Embodiment 2
[0029] (1) Pretreatment of gelatin: add 100g of edible gelatin to water of 8 times the weight, stir and disperse evenly, then place it in an ultrasonic-microwave collaborative extraction apparatus, and set the ultrasonic frequency to 40kHz, ultrasonic power to 50W, microwave frequency to 2450MHz, and microwave power to 700W After reflux treatment for 5 minutes, add 8 g of hydrolyzed polymaleic anhydride, stir evenly, and continue to reflux treatment for 10 minutes. The resulting mixture is concentrated under reduced pressure to make a paste. The paste is naturally cooled to room temperature and then sent to a freeze dryer to dry the resulting solid. Grinding into granules;
[0030] (2) Chemical modification of cetyl alcohol: mix 10g cetyl alcohol and 10g L-pyroglutamic acid, add absolute ethanol to dissolve, then add concentrated sulfuric acid dropwise to adjust the pH value of the solution to 4-5, and heat to reflux Insulate and stir, stop heating after the reaction is over, ...
Embodiment 3
[0034] (1) Pretreatment of gelatin: add 100g of edible gelatin to water of 8 times the weight, stir and disperse evenly, then place it in an ultrasonic-microwave collaborative extraction apparatus, and set the ultrasonic frequency to 40kHz, ultrasonic power to 50W, microwave frequency to 2450MHz, and microwave power to 700W After reflux treatment for 5 minutes, add 8 g of hydrolyzed polymaleic anhydride, stir evenly, and continue to reflux treatment for 10 minutes. The resulting mixture is concentrated under reduced pressure to make a paste. The paste is naturally cooled to room temperature and then sent to a freeze dryer to dry the resulting solid. Grinding into granules;
[0035] (2) Chemical modification of cetyl alcohol: mix 10g cetyl alcohol and 10g L-pyroglutamic acid, add absolute ethanol to dissolve, then add concentrated sulfuric acid dropwise to adjust the pH value of the solution to 4-5, and heat to reflux Insulate and stir, stop heating after the reaction is over, ...
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