Method for preparing bamboo charcoal and polyamide composite fibers by in situ polymerization
A bamboo charcoal polyamide and composite fiber technology, applied in the direction of single-component polyamide rayon, fiber chemical characteristics, rayon manufacturing, etc., can solve problems such as uneven dispersion
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Embodiment 1
[0019] Embodiment 1: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 134.4 Kg, solvent methanol 537.6 Kg, prepare 20% adipic acid methanol solution; Diamine 105.6 Kg, solvent methanol 105.6 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 6.3 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization, and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.
[0020] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215°C and 1764 kPa, and then flashed at normal pr...
Embodiment 2
[0022] Embodiment 2: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 134.4 Kg, solvent methanol 537.6 Kg, prepare 20% adipic acid methanol solution; Diamine 105.6 Kg, solvent methanol 105.6 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 14.7 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.
[0023] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215 °C and 1764 kPa, and then flashed at normal p...
Embodiment 3
[0025] Embodiment 3: a kind of in-situ polymerization prepares the method for bamboo charcoal polyamide composite fiber, comprises the steps: (1) measure and weigh adipic acid 161.3 Kg, solvent methanol 645.2 Kg, prepare 20% adipic acid methanol solution; Diamine 126.7 Kg, solvent methanol 126.7 Kg, prepare 50% hexamethylenediamine methanol solution; nano-modified bamboo charcoal powder 22.7 Kg, the above raw materials are added to a stainless steel polymerization reactor for intermediate reaction, cooling, crystallization, and centrifugation after the reaction , washed and filtered to obtain the composite 66 salt for preparing bamboo charcoal polyamide composite melt.
[0026] (2) Prepare the compound 66 salt prepared in step (1) into a 50% aqueous solution, add 0.5% adipic acid and 2% caprolactam (based on the weight of 66 salt), and place it in an autoclave for polycondensation reaction . The material is pre-condensed at 210-215°C and 1764 kPa, and then flashed at normal p...
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