Glue for paper mixing adhesive tape and production process thereof
A tape and glue technology, applied in the direction of adhesives, film/sheet adhesives, adhesive types, etc., can solve problems such as high VOC content, hazards, and easy pollution of the environment and human body
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preparation example 1
[0038]Preparation of modified carbon nitride, including the following steps:
[0039]1) A 1kg of carbon nitride is dispersed in sulfuric acid in 3 kg of mass fraction of 98%, and after 30 min, stir back at 80 ° C for 60;
[0040]2) After the reaction is completed, 1 kg of deionized water is added and the filter is lowered, and the filtration is filtered, and the filtration is removed from the filtrate to detect the pH test paper, then place the filter in a vacuum drying tank, at 80 Dry at ° C for 24 h;
[0041]3) After the filter cake is dry, the abrasive cake and the 60 mesh screen is obtained, and the fine powder is obtained, the fine powder is dispersed in a 2 kg mass fraction of 75% ethanol solution, and the ultrasound is dispersed for 20 min, then 0.25 kg of silane coupling agent KH570 After the ultrasound 10min; 4) After the ultrasonic end, the pH of glacial acetic acid is added, and the pH of the solution is adjusted to be 3, and then stirred at 60 ° C for 8 h, after cooling to 25 ° C...
preparation example 2
[0043]Preparation of modified carbon nitride, including the following steps:
[0044]1) Dispersion 1 kg of carbon nitride in 68% nitric acid in 3 kg of carbon nitride, and then stirred at 120 ° C for 4 h at 120 ° C;
[0045]2) After the reaction is completed, 1 kg of deionized water is added and the filter is lowered, and the filtration is filtered, and the filtration is removed from the filtrate to detect the pH test paper, then place the filter in a vacuum drying tank, at 80 Dry at ° C for 24 h;
[0046]3) After the filter cake is dry, the abrasive cake and the 60 mesh screen is obtained, and the fine powder is dispersed in a 2 kg mass fraction of 75% ethanol solution, and the ultrasonic dispersion is 40 min, then add 0.17kg silane coupling agent KH570 After the ultrasonic acid is 30 min; 4) After the ultrasonic end, the adhesive acetic acid is added, and the pH of the solution is 4, and then stirred at 80 ° C for 6 h, after cooling to 25 ° C, filtered, washed with deionized water to the f...
preparation example 3
[0048]Preparation of modified carbon nitride, including the following steps:
[0049]1) A mixed acid solution of 1 kg of carbon nitride was dispersed in a 2 kg mass fraction of 98% of sulfuric acid and 1 kg mass fraction of 68% nitric acid, and after 45min, stirred at 100 ° C for refluxing for 5 h;
[0050]2) After the reaction is completed, 1 kg of deionized water is added and the filter is filtered, washed with deionized water, and the filtration is removed from the filtrate to detect neutrality, then place the filter in a vacuum drying tank, at 80 ° C Dry 24h;
[0051]3) After the filter cake is dry, the abrasive cake has a 60 mesh screen to obtain a fine powder, disperse the fine powder in a 2 kg mass fraction of 75% ethanol solution, ultrasonic dispersion 30 min, then add 0.2 kg of silane coupling agent KH570 After the ultrasonic 20min; 4) After the ultrasonic acid, the ice acetic acid is added, and the pH of the solution is 3.6, then stirred at 70 ° C for 7 h, after cooling to 25 ° C, ...
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