Shanghai Daoqin Plastics Co., Ltd.

coating material in production 施工 整 process in, 受剪切情况 large lower
1, coating material in production made stage/phase, filler dispersion more in relatively high speed rate lower 进行. relatively low abrasion viscosity or dispersion speed rate coating material internal 呈湍流状, filler dispersion non-uniform easy 导致颜 material poly, from effect/influence coating film cover/cap force gloss and other property can.

2, in coating material process in, speed rate especially small. 此时颜 filler and other solid material in heavy force function lower lower to container 底部, this process is drop.

        coating material drop in low speed rate lower, therefore improve/increase low speed rate lower coating material viscosity for anti material 沉淀至关 important.

—— balanced filler distribution （ using/adopting small 粒径代替 large 粒径）

——尽 amount reduce solvent agent and surface active property agent use amount, is 他们会 reduce low speed rate lower coating material viscosity

—— selection combined increase agent

3, coating material in and viscosity 关系—— in and other speed rate lower as 状态

当 coating material non viscous 稠, in inner structure 化, this coating material difficult coating 装

但 is, coating material in in non dilute 话, 会导致 coating material again 刷滚转移 in 滴落, 施工时垂直 surface easy 流挂, coating easy 飞溅.

therefore need adjustment good coating material in 此剪切 speed rate lower viscosity non important

4, film degree and viscosity 关系—— high speed degree lower as

in coating, coating and spray coating and other as process 取决于 high speed rate lower viscosity

high speed rate lower viscosity high, process in retardant force large, one-time obtain coating film thick degree more large. 反之漆 film relatively thin, 导致遮 cover/cap force reduce, degree 不足.

5, 流挂/流平—— viscosity

usually lower most small property can and most 佳 流平 property can is versus 互矛盾 target/goal.

in low speed rate decline low coating material viscosity has 利于流平, meanwhile increase 流挂风险;

usually increase film thick degree accelerated 流平, meanwhile increase 流挂.