Shanghai Daoqin Plastics Co., Ltd.

dispersant in coating material made in 起 至关 important function, can has improvement material dispersion property, stability property and coating material overall property can. is obtain most coating material 效果, control dispersant use methods and add amount is key/critical. will detailed understanding how to through positive use dispersant, improves coating material quality.

dispersant use methods 说明

dispersant add methods and other coating material additives has different. usually, other additives is in stage/phase add coating material in, dispersant in abrasion material in add 入, in abrasion process in to key/critical function. dispersant is accelerated material lubricating wet and dispersion, therefore it must and abrasion material 一起进行研 abrasion, most large degree its 效果.

in 特殊情况 lower （如修复 coating material batch 时）添 add dispersant 时, must in high force lower 进行, more good dispersion material. most 理想 做 method is use dispersion equipment again 次进行 dispersion 处理, tube/pipe 如此, this type of rear add lubricating wet dispersant efficiency relatively low, usually need more more add amount.

dispersant add amount control

dispersant add amount is ensure coating material property can core. dispersant function is through in material surface achieve lubricating wet and dispersion, therefore add amount according to material surface adjustment. although has 一 理论公式 can 帮助估算添 add amount （如 according to material ratio surface and amount ）, in 实际操 as in, most can methods is through 实验 确定 most 佳 添 add amount.

generally lower, add amount according to material type type and pellets dimensions has different:

• 无 machine material: recommendation add amount is 0.5%-2%;

• has machine material: recommendation add amount is 1%-5%;

for/regarding non small material （如炭黑）, high quality formulation in can can need more high add amount, 甚至达 to material weight 80%-100%. this material in coating material formulation in content 不会太 more, therefore dispersant add amount ratio in formulation in is especially high. due to polymer dispersant property and material similar, relatively high add amount generally 也不会 for film property can generate negative effect/influence.

how to according to material type type adjustment dispersant add amount?

添 add amount not only 仅取决于颜 material surface 积, also and material type type related. for/regarding surface treatment material, dispersant add amount can can has decrease/reduce, is surface treatment already separation improvement material dispersion property. for/regarding difficult dispersion material （如一 high color force material or 炭黑）, can can need more more dispersant ensure separation lubricating wet and dispersion.

in addition, dispersant type type and supply 形式（如 liquid or solid 体）也会 effect/influence add amount. in stage/phase, can according to supply recommendation amount 进行初步添 add, through adjustment add amount optimization formulation 效果. 实验结果 can through coating material gloss degree, Color Difference, and other indicators assessment.

mono color abrasion and abrasion

in 理想情况 lower, mono color abrasion （ use types material 进行研 abrasion ） can most large degree optimization has abrasion parameters, dispersant add amount and abrasion conditions. this usually can obtain most 佳 研 abrasion 效果. in production in, multiple material abrasion more add high 效. 此时, need according to material features adjustment abrasion conditions, ensure types material dispersion 效果尽 can can mono color abrasion 效果.

is optimization abrasion 效果, can 考虑:

• mono abrasion difficult dispersion material: for/regarding especially difficult dispersion material, can mono abrasion or use material concentrated shrink 浆.

• adjustment abrasion time and dispersant add amount: according to material type type and pellets large small, adjustment abrasion time and dispersant ratio/proportion, ensure most dispersion 效果.

颜 material surface treatment for dispersant effect/influence

large more standards material in production process in 会进行 surface treatment, this usually can improvement material lubricating wet, dispersion and stability property. surface treatment material can can ratio 未处理 颜 material need more less dispersant, is improvement material and dispersant between versus function. if certain types material dispersion 效果不佳, can use different surface treatment same material, 以寻求 most dispersion 效果.

结语

掌握 dispersant positive use methods and add amount control, is ensure coating material formulation optimization key/critical. through 精确 添 add amount control and 适当 研 abrasion methods, can improve/increase material dispersion and coating material stability property, improves product overall quality. in 实际操 as in, can combined data optimization formulation, ensure coating material to most property can.

through combined selection and use dispersant, can ensure coating material in 视觉效果, resistant property and stability property 方面都 can performance color, from meet/satisfy market and 消费者 high demand.