Kwiiplastiki, izongezo zidlala indima ebalulekileyo ekuphuculeni nasekutshintsheni iimpawu zezinto. Ii-nucleating agents kunye nee-clearing agents zimbini ezo zongezo ezineenjongo ezahlukeneyo ekufezekiseni iziphumo ezithile. Nangona zombini zinceda ekuphuculeni ukusebenza kweemveliso zeplastiki, kubalulekile ukuqonda umahluko phakathi kwezi arhente zimbini kunye nendlela ezinegalelo ngayo kwimveliso yokugqibela.

Ukuqala ngoiiarhente ze-nucleating, ezi zongezo zisetyenziselwa ukukhawulezisa inkqubo yokwenza iikristale zeplastiki zibe yikristale. Ukwenziwa kwekristale kwenzeka xa iitsheyini zepolymer zicwangciswe ngendlela ehlelekileyo, nto leyo ebangela ukuba isakhiwo sibe lukhuni ngakumbi. Indima yearhente yokwenza iikristale kukubonelela ngomphezulu apho iitsheyini zepolymer zinamathela khona, ukukhuthaza ukwakheka kwekristale kunye nokwandisa ubukhali bezinto ezibonakalayo. Ngokukhawulezisa ukwenziwa kwekristale, iiarhente ezenza iikristale ziphucula iipropati zoomatshini kunye nobushushu beplastiki, zizenze zibe nzima kwaye zingabi nabushushu.

Enye yezona zinto zisetyenziswa kakhulu ekuveliseni i-nucleating yi-talc, iminerali eyaziwa ngokuba namandla ayo okudala ukwakheka kwekristale. I-Talc isebenza njenge-nucleating agent, inika iindawo zokuvelisa i-nucleation ukuze ii-polymer chain zilungelelaniswe. Ukongezwa kwayo kubangela ukunyuka kwamazinga okwenziwa kwe-crystal kunye nesakhiwo sekristale esicolekileyo, okwenza ukuba izinto zibe namandla kwaye zizinzile ngakumbi. Ngokuxhomekeke kwiimfuno ezithile kunye neempawu zemveliso yeplastiki, ezinye izinto zokuvelisa i-nucleating ezifana ne-sodium benzoate, i-benzoic acid kunye ne-metal salts nazo zingasetyenziswa.

Kwelinye icala, iiClarifiers zezongezo ezongeza ukucaca kweplastiki ngokunciphisa inkungu. Inkungu kukusasazwa kokukhanya ngaphakathi kwento, okubangela ukubonakala okunamafu okanye okukhanyayo. Indima yeearhente zokucacisa kukutshintsha i-polymer matrix, ukunciphisa iziphene kunye nokunciphisa iziphumo zokusasazeka kokukhanya. Oku kuphumela kwizixhobo ezicacileyo nezicacileyo, ezilungele ngokukodwa ukusetyenziswa okufana nokupakisha, iilensi ze-optical kunye neziboniso.

Enye yezona zinto zisetyenziswa kakhulu ekucaciseni yi-sorbitol, iswekile yotywala esebenza njenge-nucleating agent. Njenge-ejenti yokucacisa, i-sorbitol inceda ekwenzeni iikristale ezincinci, ezichazwe kakuhle ngaphakathi kwe-matrix yeplastiki. Ezi kristale zinciphisa ukusasazeka kokukhanya, nto leyo enciphisa kakhulu inkungu. I-Sorbitol idla ngokusetyenziswa kunye nezinye izinto ezicacisayo ezifana ne-benzoin kunye ne-triazine derivatives ukuze kufezekiswe ukucaca okufunekayo kunye nokucaca kwemveliso yokugqibela.

Nangona zombini ii-nucleating kunye nee-clarifying agents zineenjongo ezifanayo zokuphucula iimpawu zeplastiki, kufuneka kuqatshelwe ukuba iindlela zazo zokusebenza zahlukile.Iiarhente ze-nucleatingikhawulezisa inkqubo yokwenza ikristale, ngaloo ndlela iphucula iipropati zoomatshini nezobushushu, ngelixa ii-clearing agents ziguqula i-polymer matrix ukunciphisa ukusasazeka kokukhanya kunye nokwandisa ukucaca kwe-optical.

Ukuqukumbela, ii-nucleating agents kunye nee-clearing agents zezona zongezo zibalulekileyo kwicandelo leplastiki, kwaye isongezo ngasinye sinenjongo ethile. Ii-nucleating agents ziphucula inkqubo yokwenza i-crystallization, ngaloo ndlela ziphucula iipropati zoomatshini kunye nobushushu, ngelixa ii-clearing agents zinciphisa umsi kwaye zonyusa ukucaca kokukhanya. Ngokuqonda umahluko phakathi kwezi arhente zimbini, abavelisi banokukhetha isongezo esifanelekileyo ukuze bafezekise iziphumo ezinqwenelekayo kwimveliso yabo yeplastiki, nokuba ngamandla anyukileyo, ukumelana nobushushu okanye ukucaca kokukhanya.