Kumapulasitiki, izithasiselo zidlala indima ebalulekile ekuthuthukiseni nasekuguquleni izakhiwo zezinto zokwakha.Ama-Nucleating agents kanye nama-clarifying agents ayizithasiselo ezimbili ezinjalo ezinezinjongo ezihlukene zokuzuza imiphumela ethile.Nakuba zombili zisiza ukuthuthukisa ukusebenza kwemikhiqizo yepulasitiki, kubalulekile ukuqonda umehluko phakathi kwalawa ma-ejenti amabili nokuthi anikela kanjani emkhiqizweni wokugcina.

Iqala ngeama-nucleating agents, lezi zithasiselo zisetshenziselwa ukusheshisa inqubo ye-crystallization yamapulasitiki.I-Crystallization yenzeka lapho amaketanga e-polymer ehlelwa ngendlela ehlelekile, okuholela esakhiweni esiqinile.Iqhaza le-ejenti ye-nucleating ukuhlinzeka indawo engaphezulu ukuze amaketanga e-polymer anamathele, akhuthaze ukwakheka kwekristalu futhi akhulise ubucwebe bezinto ezibonakalayo.Ngokusheshisa i-crystallization, ama-nucleating agents athuthukisa izakhiwo zemishini nezokushisa zamapulasitiki, azenze zibe nzima futhi zimelane nokushisa.

Enye yezinto ezivame ukusetshenziswa ezenza i-nucleating i-talc, imineral eyaziwa ngekhono layo lokudala ukwakheka kwekristalu.I-Talc isebenza njenge-nucleating agent, ihlinzeka ngezindawo ze-nucleation ukuze amaketanga e-polymer ahleleke nxazonke.Ukwengezwa kwayo kuholela emazingeni akhuphukile ekristalu kanye nesakhiwo sekristalu esicolekile, okwenza izinto zibe namandla futhi zizinze ngokwengxenye.Ngokuya ngezidingo ezithile kanye nezici zomkhiqizo wepulasitiki, amanye ama-nucleating agents afana ne-sodium benzoate, i-benzoic acid nosawoti wensimbi nawo angasetshenziswa.

Izichazi, ngakolunye uhlangothi, ziyizithasiselo ezikhulisa ukucaca kwepulasitiki ngokunciphisa inkungu.I-Haze wukuhlakazeka kokukhanya ngaphakathi kwento, okuholela ekubonakaleni okuguqubele noma okuguquguqukayo.Iqhaza lama-ejenti acacisayo ukuguqula i-polymer matrix, ukunciphisa amaphutha nokunciphisa imiphumela yokuhlakazeka kokukhanya.Lokhu kubangela izinto ezicacile, ezibonisa ngale, ezilungele ikakhulukazi izinhlelo zokusebenza ezifana nokupakishwa, amalensi okubonayo nezibonisi.

Enye yezindlela ezivame ukusetshenziswa zokucacisa i-sorbitol, utshwala obushukela obuphinde busebenze njenge-nucleating agent.Njenge-ejenti ecacisayo, i-sorbitol isiza ukwakha amakristalu amancane, achazwe kahle ngaphakathi kwe-matrix yepulasitiki.Lawa makristalu anciphisa ukusakazeka kokukhanya, okunciphisa kakhulu inkungu.I-Sorbitol ivame ukusetshenziswa ngokuhlanganiswa namanye ama-ejenti acacisayo afana nokuphuma kokuphuma kwe-benzoin ne-triazine ukuze kufezwe ukucaca okudingekile nokucaca komkhiqizo wokugcina.

Nakuba kokubili ama-nucleating kanye nama-ejenti acacisayo anomgomo ofanayo wokuthuthukisa izakhiwo zepulasitiki, kufanele kuqashelwe ukuthi izindlela zabo zokusebenza ziyehluka.Ama-nucleating agentsukusheshisa inqubo ye-crystallization, ngaleyo ndlela kuthuthukiswe izakhiwo zemishini nezokushisa, kuyilapho ama-ejenti acacisayo eguqula i-matrix ye-polymer ukuze kuncishiswe ukuhlakazeka kokukhanya nokwandisa ukucaca kwe-optical.

Ekuphetheni, ama-nucleating agents kanye nama-clarifying agents ayizithasiselo ezibalulekile emkhakheni wepulasitiki, futhi isithasiselo ngasinye sinenjongo ethile.Ama-Nucleating agents athuthukisa inqubo ye-crystallization, ngaleyo ndlela athuthukise izakhiwo zemishini nezokushisa, kuyilapho ama-ejenti acacisayo anciphisa inkungu futhi andise ukucaca kwe-optical.Ngokuqonda umehluko phakathi kwalawa ma-ejenti amabili, abakhiqizi bangakhetha isengezo esifanele ukuze bafinyelele umphumela oyifunayo womkhiqizo wabo wepulasitiki, kungakhathaliseki ukuthi ukwanda kwamandla, ukumelana nokushisa noma ukucaca kwe-optical.