Shanghai Daoqin Plastics Co., Ltd.

        一, nano injection molding product cationic rear 出现藏 acid is what causes?

         in China polymer/macromolecule forum upper, has 位网友提出: nano injection molding product cationic rear product 出现藏 acid is what causes formed, how solution?

         issues 一抛出, has other 网友回帖, 网友A table/sheet 示也遇 to issues, 他说: has product in cationic rear product force ratio cationic decline semi!

        网友B table/sheet 示:

        藏 acid causes is aluminum combined 缝隙, tube/pipe more good combined method micro combined 缝隙! in cationic oxidation made in 化抛工序 in, due to hot cold shrink principle, metal and plastics in temperature degree 变化时, shrinkage degree different, generate 裂缝. a small amount of agent (generally is high concentrated degree acid, acid and acid mixed combined material)会渗进 micro in, easy 清洗出; in acid cationic electrical understanding liquid in, due to long time electrical understanding reaction has a small amount of acid 渗入;即 make 经 清洗, in rear 工序 染 color and 封孔工序 also is has acid 流出, color agent acid formed white, is phenomenon. especially is 封孔工序也 is high temperature, hot cold shrink principle acid 渗出破 bad material formed 露白.

        二, how to solution?

        知道 藏 acid causes, 我们就 can for lower 药! solutions not only is to process/workflow can full control, need more detailed fine tube/pipe 控. main/primary separation is 两 方面:

        1. decrease/reduce or 杜绝漏 acid phenomenon

        首先, in selection metal and plastics material 时, make shrinkage rate can can same; generally 讲, can through glass fiber (GF) and other reinforcement material ratio/proportion plastics shrinkage rate, make and metal material 接近.

         its 次, optimization injection molding parameters, decrease/reduce injection molding defect.

         most rear, temperature degree rise high or reduce fast, 避免裂缝 generate.

        2. will acid remove

         in color front, use table/sheet agent will 渗透出 acid in and, again combined ultra- 声波处理, will in acid 驱赶出.

         in production in, 人们往往倾 toward use table/sheet agent combined ultra- 声波 methods, its 实第一 types methods belongs to anti 患于未然, types methods is remedy measures. therefore 说, solutions not only is to process/workflow can full control, need more detailed fine tube/pipe 控.