Preparation method for improving waterproof performance of paper cup
A performance and paper cup technology, which is applied in the field of preparation to improve the waterproof performance of paper cups, can solve the problems of poor waterproof effect, etc., and achieve the effects of easy recyclability, enhanced cross-linking degree, and good mechanical properties
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Embodiment 1
[0022] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:
[0023] S1. Stir 3kg of locust bean gum, 4kg of sweet potato starch, and 34kg of water for 10 minutes at a stirring temperature of 54°C, pregelatinize for 4 minutes, and pregelatinize at a temperature of 90°C, add 12kg of polyethylene glycol 4000 and mix evenly, add 0.1kg of polyethylene glycol Etheramine D230 and 0.04 kg of tris-(dimethylaminomethyl)phenol were mixed evenly, degassed in vacuum, adjusted the temperature to 120°C and stirred for 80 minutes, cooled, dried, and pulverized to obtain the first material;
[0024] S2. Mix 34kg of rice straw and 18kg of pagoda tree bark, grind them into pulp until the degree of beating is 51°SR, adjust the concentration to 1.2wt%, then add 2kg of the first material and stir for 40min at a stirring speed of 1200r / min to obtain the first Two materials;
[0025] S3, add 1kg methyl silicone oil, 1kg paraffin, 1kg cocamidopropyl b...
Embodiment 2
[0027] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:
[0028] S1. Stir 9kg of locust bean gum, 1kg of sweet potato starch, and 45kg of water for 4 minutes at a temperature of 60°C, pregelatinize for 2 minutes, and pregelatinize at a temperature of 96°C, add 4kg of polyethylene glycol 4000 and mix evenly, add 0.2kg of polyethylene glycol Etheramine D230 and 0.01kg of tris-(dimethylaminomethyl)phenol were mixed evenly, degassed in vacuum, adjusted the temperature to 140°C and stirred for 40 minutes, cooled, dried, and pulverized to obtain the first material;
[0029] S2. Mix 45kg of rice straw and 10kg of locust tree bark, grind them into pulp until the degree of beating is 54°SR, adjust the concentration to 0.8wt%, then add 4kg of the first material and stir for 24min at a stirring speed of 1400r / min to obtain the first Two materials;
[0030] S3, add 3kg methyl silicone oil, 0.2kg paraffin, 2kg cocamidopropyl betaine to ...
Embodiment 3
[0032] A preparation method for improving the waterproof performance of paper cups, comprising the steps of:
[0033] S1. Stir 4kg of locust bean gum, 3kg of sweet potato starch, and 38kg of water for 8 minutes at a stirring temperature of 56°C, pregelatinize for 3.5min at a temperature of 92°C, add 10kg of polyethylene glycol 4000 and mix well, add 0.12kg Mix polyetheramine D230 and 0.03 kg of tris-(dimethylaminomethyl)phenol evenly, degas in vacuum, adjust the temperature to 125°C and stir for 70 minutes, cool, dry, and pulverize to obtain the first material;
[0034] S2. Mix 38kg rice straw and 16kg locust tree bark, grind them into pulp until the degree of beating is 52°SR, adjust the concentration to 1.1wt%, then add 2.5kg of the first material and stir for 34min, and the stirring speed is 1250r / min, to obtain the second material;
[0035] S3, add 1.5kg methyl silicone oil, 0.8kg paraffin, 1.3kg cocamidopropyl betaine to the 75kg second material and mix evenly, then add ...
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