Shanghai Daoqin Plastics Co., Ltd.

         nylon parts application very 广, is its color need 考虑颜 material resistant property can. that 么, is what nylon parts need 煮呢? resistant nylon how to color?

        一, for/regarding nylon parts use water causes analysis:

        1, commonly used nylon is is nylon 6 (PA6), nylon 66 (PA66), is types crystallization property thermoplastic property material;

        2, nylon material easy water, has hydrophilic water 基(酰氨基).

         for crystallization property polymer 而言, in injection molding processing 时, very speed cooling make material method crystallization type, from make material internal in relatively strong/high internal stress. has 经 “回火”处理 nylon material, its internal is in type rear, large separation still 然会趋 toward 于自然 orientation, crystallization 运动, this 会导致材 material internal stress 进一步 add 剧. therefore, has water 煮工序 nylon parts its property non large, in to outer force 时, very easy or is fracture.

        二, that 么, how to let already molding nylon large separation 子自然 orientation, crystallization, amount remove internal stress 呢? also how to color 呢?

         that is 我们说 water 煮, water 煮工序 its 实跟我们 metal “回火”处理工序 设置 has 异曲同工之妙. that is let nylon parts in water temperature 浸泡, let its internal large separation amount 趋于自然 orientation and to internal crystallization and understanding balanced, from remove its internal force. performance in outer is: nylon parts tough property large large reinforcement, property basic remove.

        1) that is what need use water 煮呢?

         that is is nylon hydrophilic water 基团——酰氨基团, it nylon easy water, nylon absorption water separation rear, has its internal large separation orientation and crystallization 运动.

         nylon parts water most temperature degree and time:

        90-100℃, 2-3 small 时

         low 于90 degree, 效果不 good, ultra- 3 small 时, 也不会 again has more good 结果. from property ratio 而言, upper process conditions most 佳.

        2) resistant nylon how to color?

         generally property nylon color rear also need 蒸煮, therefore used for nylon material need 蒸煮不退 color. time 里, use 镉系颜 material and material, is 镉系颜 material due to heavy metal issues in to very more made, material water rear more color unstable color.

         therefore, resistant nylon comparison combined use machine material, solvent agent material or has machine material (偶 nitrogen material, 苝系颜 material, ring ketone type (also type), material type material, new type metal combined material).