Ukubaluleka kokusasazeka kwe-pigment kumbala weplastiki

Ukusasazwa kwee-pigments kubaluleke kakhulu ekufakeni imibala kwiiplastiki. Isiphumo sokugqibela seumbalaUkusasazwa akuchaphazeli nje kuphela amandla e-tinting ye-pigment, kodwa kuchaphazela imbonakalo yemveliso enemibala (efana namabala, imigca, iglosi, umbala kunye nokungafihli), kwaye ichaphazela ngokuthe ngqo umgangatho wemveliso enemibala, njengamandla, Ubude, ukuxhathisa kwemveliso. Ukuguga kunye nokuxhathisa, njl., Kwakhona kuchaphazela ukusebenza kokucubungula kunye nokusebenza kwesicelo seplastiki (kubandakanywa nombalamasterbatch).

I-dispersibility ye-pigments kwiiplastiki ibhekiselele kwisakhono se-pigments ukunciphisa ubungakanani be-aggregates kunye ne-agglomerates kubungakanani obufunekayo emva kokumanzisa. Phantse zonke iipropathi zee-pigments kwizicelo zeplastiki zisekwe kwinqanaba apho ii-pigments zinokusasazwa ngokufanelekileyo. Ke ngoko, i-dispersibility ye-pigments sisalathisi esibaluleke kakhulu kwisiceloumbala weplastiki.

Kwinkqubo yokuvelisa i-pigment, i-crystal nucleus yenziwa kuqala. Ukukhula kwe-crystal nucleus yikristale enye ekuqaleni, kodwa ngokukhawuleza ikhula ibe yi-polycrystal enesakhiwo se-mosaic. Ngokuqinisekileyo, iinqununu zayo zisalungile, kwaye ubungakanani bomgca weengqungquthela malunga ne-0.1 ukuya kwi-0.5 μm, ezibizwa ngokuba yi-primary particles okanye i-primary particles. Iinqununu eziziiprayimari zivame ukudibanisa, kwaye iinqununu ezidibeneyo zibizwa ngokuba yi-secondary particles. Ngokweendlela ezahlukeneyo zokudibanisa, amasuntswana esibini ngokwesiko ahlulahlulwe abe ngamacandelo amabini: enye kukuba iikristale zidityaniswe ngemiphetho yekristale okanye ii-angles, umtsalane phakathi kweekristale zincinci, amasuntswana akhululekile kwaye ahlulwe ngokulula. ukusasazeka, okubizwa ngokuba yi-attachment. Udityaniso; olunye uhlobo, iikristale zijikelezwe ziindiza zekristale, amandla anomtsalane phakathi kweekristale zomelele, amasuntswana aqinile, abizwa ngokuba zii-aggregates, indawo yonke yommandla we-aggregates ingaphantsi kwesambuku somphezulu weendawo zazo. kwaye i-aggregates ixhomekeke kwiinkqubo zokusasazwa ngokubanzi. Kuphantse kube nzima ukusasazeka.