Shanghai Daoqin Plastics Co., Ltd.

颜 material dispersant is types main/primary used for in liquid 体介质（ usually is liquid or solvent agent ） in dispersion material pellets chemical material 质, can make material uniform distribution in solvent liquid in, 而不会沉淀 or poly in 一起, material dispersant tool has di separation structure, its solid provide for material surface strong/high 吸附, to polymerization can to stability function, this has maintain material stability property, make its can by more good application in coating material, ink, plastics, product, material water and other various product in.

has material has dispersant, this it in various product in, material dispersant is is paint, coating material and made printing formulation high property can can less important formed separation, it is high degree 专业化 additives, used for lubricating wet, dispersion and stability various liquid formulation in dry material powder 末.

颜 material is solid solvent property powder 末, used for is various material （包括 paint, coating material and ink ） provide color, it in upper has multiple color and chemical formed separation can selection, although material selection is 无穷无尽, it has 一 共同点, it must dispersion, in ink, paint and coating material in provide most property can and appearance.

当颜 material by add to liquid in 时, due to pellets versus function force, easy 发生沉淀 or 凝结, 导致颜 material in liquid in distribution non-uniform, effect/influence product quality and appearance. material dispersant through surface active property agent function, can reduce pellets versus function force, from make material pellets more good dispersion in liquid in, maintain stability 悬浮状态.

颜 material dispersion is will solvent property material in liquid 体介质（ usually is water or has machine solvent agent ） in, material must separation lubricating wet, poly / dispersion and uniform distribution and stability, 以便于 it in used for ink, paint and coating material process, achieve most large color strong/high degree, gloss degree and cover/cap force. material dispersion stability need time and force, dispersion material has very strong/high to its 初始团 poly trend, due to this type of strong/high trend, positive selection lubricating wet dispersant for/regarding obtain stability formulation important.

颜 material dispersion formed 功取决于 understanding its in paint, coating material and ink formulation in color color property can, color property can 各 方面包括 color degree, color and transparent degree and cover/cap force, is separation understanding dispersion color property can, must assessment its dispersion features, this viscosity, and versus property, material surface lubricating wet can force and lubricating wet dispersant dispersion stability property effect/influence this property can. upper, material dispersion main/primary steps formed: lubricating wet, understanding poly and stability, lower will more detailed overview this steps.

lubricating wet  当 solid material 首次添 add to liquid 体介质 in 时, it 们会结 block, gas by in material poly material surface, is 进行适当 lubricating wet, need use liquid 体介质 replace material in 夹留 空 gas, system in 夹留 空 gas less, lubricating wet has 效, 一切都 and surface force has 关. for/regarding lubricating wet solid liquid 体, its surface force must low solid 体 自由 surface can. therefore tool has low surface force liquid in lubricating wet more has 效, this is is what lubricating wet additives for formulation design 师如此 has value causes, it will reduce surface force viscous in surface coating material formed additives / liquid interface, wetting agent use add fast process ensure material full lubricating wet.

understanding poly  一旦颜 material pellets full lubricating wet, must separation understanding material large poly material decrease small pellets dimensions, in dispersion process this stage/phase, material poly material by separation formed relatively small poly and grade pellets, 掺入颜 material surface force low, dispersion material can amount low, reduce liquid 体介质 in surface force can achieve more fast understanding poly and dispersion in more uniform 粒径. understanding poly is through use high speed dispersion machine and various type type abrasion equipment development machine 械剪切 can achieve, in high speed mixed combined machine upper 整流罩刀 sheet/slice is dispersion material has methods, is will material dispersion to nano grade, use 0.3-0.5nm研 abrasion 介质.

stability   due to in understanding poly /研 abrasion stage/phase solid pellets surface increase, in must stability understanding poly material pellets anti again poly, 以避免絮凝, color, and stability property loss and other issues. in steps in, add material dispersant, dispersant will to material pellets upper make it maintain separation 离, liquid in material stability can through electrical stability or 空间位 retardant stability mechanism achieve.

静 electrical stability  静 electrical dispersant belt/tape has electrical 荷, it and material pellets surface versus function, generate similar belt/tape electrical surface, usually is cationic 离子, material pellets surface upper this similar electrical versus 互排斥并 maintain material stability 悬浮状态. PH value and material 质 添 add make in electrical dispersant in pellets unstable, in formulation in, if most application dispersion 体PH value low 于4, 则建议 use acid property dispersion 体; if is alkali property dispersion 体, 则建议PH value high 于7.5.

颜 material dispersant separation through 离子键, hydrogen or versus function in material surface, through power/electricity make pellets versus 互排斥, Zeta electrical 位越接近零, WB dispersion 体就越容 easy heavy new poly. dispersant can through cationic or anionic separation 子基团 achieve electrical stability, 如季铵 salt and more amine （ cationic 离子） or poly acid and has machine material （ anionic 离子）. need attention/notes is tool has high conductive property material can can method through electrical stability stability.

空间位 retardant stability  空间位 retardant dispersant tool has 锚定头基团 separation formed, separation by material pellets and 尾部吸引, this by dispersion liquid versus 吸引, 头部基团吸附 in material surface, from surface toward outer toward, 突出 尾巴 make material pellets maintain separation and 悬浮. 空间位 retardant stability in high salt concentrated degree and wide PH scope/range inner non stability.

in water property and solvent agent type system in, material dispersant 锚定基团 will viscous in material surface, system versus property 取决于构 formed hydrophobic water separation polymer function 段, about/regarding 空间位 retardant stability, additives will in material upper reduce material pellets flow property, from 而避免 or most large degree decrease/reduce or again poly, this type of type type stability main/primary through non dispersant formed.

颜 material dispersant in various industrial and product application in important function, in many lower, material is ink, paint or coating material formulation in most formed separation, material dispersant optimization ensure formulation in material in liquid 体介质 in maintain stability dispersion 状态, from to color color appearance and physical properties, meanwhile can can less use material.