Kukosha kwe pigment dispersion pane epurasitiki coloring

Kupararira kwe pigment kwakakosha zvakanyanya pakupenda kwepurasitiki. Mhedzisiro yekupedzisira yepigmentkupararira hakungokanganisa kusimba kwepigment chete, asiwo kunokanganisa kutaridzika kwechigadzirwa chine ruvara (senge mavara, mitsetse, gloss, ruvara uye pachena), uye zvakare inokanganisa zvakananga kunaka kwechigadzirwa chine ruvara, senge simba, kureba, kuramba kwechigadzirwa. Kuchembera uye resistivity, nezvimwewo, zvinokanganisawo mashandiro ekugadzirisa uye kuita kwekushandisa kwemapurasitiki (kusanganisira ruvaramasterbatch).

Iyo dispersibility ye pigment mumapurasitiki inoreva kugona kwe pigment kudzikisa saizi yeaggregates uye agglomerates kuhukuru hunodiwa mushure mekunyorova. Zvinenge zvese zvimiro zvepigment mumapurasitiki ekushandisa zvinoenderana nechiyero chekuti pigment inogona kuparadzirwa zvakanaka. Naizvozvo, dispersibility ye pigment chiratidzo chakakosha chekushandisa paplastiki coloring.

Mukuita kwekugadzira pigment, iyo crystal nucleus inotanga kuumbwa. Kukura kwekristaro nucleus ikristaro imwechete pakutanga, asi inokurumidza kukura kuita polycrystal ine mosaic chimiro. Ehe, zvimedu zvaro zvichiri zvakanaka, uye saizi yemutsara yezvimedu ingangoita 0.1 kusvika 0.5 μm, ayo anowanzo kunzi maprimary particles kana primary particles. Maprimary particles anowanzo kuunganidza, uye akaunganidzwa zvidimbu zvinodaidzwa kuti zvidimbu zvechipiri. Zvinoenderana neakasiyana nzira dzekuunganidza, zvidimbu zvechipiri zvinogara zvakakamurwa kuita mapoka maviri: imwe ndeyekuti makristasi anobatanidzwa nekristaro edges kana makona, kukwezvana pakati pemakristasi kudiki, zvimedu hazvina kusununguka, uye zviri nyore kupatsanurwa. kupararira, kunonzi kubatanidzwa. Aggregate; imwe mhando, makristasi anoganhurwa nendege dzekristaro, simba rinokwezva pakati pemakristasi rakasimba, zvimedu zvine simba, zvinonzi aggregates, iyo yakazara nzvimbo yeaggregates ishoma pane huwandu hwenzvimbo dzepamusoro dzezvikamu zvadzo, uye iwo akaunganidzwa anovimba nemafambisirwo ekupararira. Zvinenge zvakaoma kupararira.