Bohlokoa ba ho hasana ha pigment holim'a mebala ea polasetiki

Ho hasana ha li-pigments ho bohlokoa haholo bakeng sa 'mala oa polasetiki.Phello ea ho qetela eapigmentho hasana ha ho ame feela matla a tinting ea pigment, empa hape ho ama ponahalo ea sehlahisoa se mebala (joalo ka matheba, li-streaks, gloss, mmala le pepenene), hape e ama ka ho toba boleng ba sehlahisoa se mebala, joalo ka matla, elongation, ho hanyetsa hoa sehlahisoa.Botsofali le ho hanyetsa, joalo-joalo, le tsona li ama ts'ebetso ea ts'ebetso le ts'ebetso ea ts'ebeliso ea polasetiki (ho kenyeletsoa le 'malamasterbatch).

The dispersibility ea pigments ka polasetiki e bua ka bokhoni ba pigments ho fokotsa boholo ba aggregates le agglomerates ho boholo ba lakatsa ka mor'a hore metsi.Hoo e batlang e le litšobotsi tsohle tsa li-pigments tse sebelisoang ka polasetiki li itšetlehile ka hore na li-pigments li ka qhalakanngoa hakae.Ka hona, dispersibility ea pigments ke pontšo ea bohlokoa haholo bakeng sa kopo kammala wa polasetiki.

Nakong ea tlhahiso ea pigment, nucleus ea kristale e qala ho thehoa.Khōlo ea nucleus ea kristale ke kristale e le 'ngoe qalong, empa haufinyane e fetoha polycrystal e nang le sebopeho sa mosaic.Ha e le hantle, likaroloana tsa eona li ntse li le ntle haholo, 'me boholo ba mela ea likaroloana ke hoo e ka bang 0.1 ho 0.5 μm, eo ka kakaretso e bitsoang likaroloana tse ka sehloohong kapa likaroloana tse ka sehloohong.Likaroloana tse ka sehloohong li atisa ho bokellana, 'me likaroloana tse kopantsoeng li bitsoa likaroloana tsa bobeli.Ho ea ka mekhoa e fapaneng ea ho bokellana, likaroloana tsa bobeli li tloaelehile ho aroloa ka mekhahlelo e 'meli: e' ngoe ke hore likristale li kopantsoe ka mahlakoreng a kristale kapa li-angles, khahloa pakeng tsa likristale e batla e le nyenyane, likaroloana li batla li hlephile, 'me li arohanngoa habonolo ke kristale. ho qhalakana, ho bitsoang ho kgomarela.Aggregate;mofuta o mong, likristale li moeling oa lifofane tsa kristale, matla a khahlehang pakeng tsa likristale a matla, likaroloana li batla li tiile, tse bitsoang li-aggregates, sebaka se felletseng sa likaroloana se ka tlase ho kakaretso ea libaka tse kaholimo tsa likaroloana tsa tsona, 'me li-aggregates li itšetlehile ka mekhoa e akaretsang ea ho hasana.Ho batla ho le thata ho hasanya.