Shanghai Daoqin Plastics Co., Ltd.

          nylon is as is engineering plastics in use amount most large, this not only is nylon tool has oil resistant, high strength, high rigid degree, heat resistant, resistant 震, self-extinguishing property and other advantages, from widely used in industry. 而我们 large more 数 人 or understanding nylon raw materials or modified nylon material, for/regarding nylon is how to combined formed, understanding more. therefore, small is belt/tape large 家一起 understanding lower, Common nylon is how to “诞生"!

        一 PA66

         nylon 66 由 hexamethylenediamine and adipic acid through polycondensation to, tool has good machine strong/high degree, rigid degree, heat resistant and wear resistance, resistant creep property. its production process main/primary separation is nylon 66 salt made 备, polycondensation steps.

        1. nylon 66 salt made 备

         nylon 66 salt is in and other adipic acid and amine solvent liquid mixed combined in and rear in reaction conditions lower made, its reaction lower:

        2. polycondensation

         nylon 66 salt in high temperature lower water polycondensation formed nylon 66. its reaction lower:

        二 PA6

        PA6 relatively good tough property, insulation property, chemical resistance and weather resistance and other. PA6 is caprolactam ring poly 而, its combined formed process generally separation is steps: 1. caprolactam ring hydrolysis formed 氨基己 acid, 2.氨基己 acid polycondensation to nylon polymer.

        三 芳纶1313 combined formed

        芳纶1313 belongs to full 间位芳香 polyamide (PA), tool has good heat stabilized property, flame retardant property, insulation property, chemical resistance, resistant property and excellent mechanical properties, its combined formed process lower:

        四 芳纶14 and 1414

         full for poly amine tool has ultra- high strength, ultra-high modulus, high temperature resistance, corrosion resistant, flame retardant, 膨胀系数 small and other series excellent property can, 如芳纶14, 芳纶1414.

        五 PA12

        PA12T belongs to semi polyamide (PA), maintain aliphatic nylon processing flow property, meanwhile tool has water absorption low, heat resistant property and force property can has improve/increase features. PA12T is 由1,12-十二 carbon amine and for 苯二甲 acid polycondensation to, combined formed process main/primary separation is below/following 两步.

        1.PA12T salt made 备

         will 1,12-十二 carbon amine and and other ratio for 苯二甲 acid reaction conditions lower to PA12T salt, reaction lower:

        2. polycondensation

         upper made PA12T salt in high temperature lower polycondensation reaction to PA12T polymer, reaction lower: