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Hei wāhanga nui o ngā hua PVC ngāwari, he nui te awe o te plasticizer ki te mahi a ngā hua PVC ngāwari. Mena me whakamahi ngā hua PVC ngohengohe (ngā ārai tatau rokiroki makariri PVC) i ngā pāmahana iti, me whiriwhiri ngā plasticizer he ātete pāmahana pai.
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He mea hanga kirihou whānui te DOP me te DOTP hei whakangawari ake, hei whakangawari ake, hei whakangawari ake hoki i te tukatuka i te PVC. Ko te rerekētanga matua ko tō rāua hanganga ngota: ko te DOP, e pā ana ki te DEHP, he orthophthalate, ko te DOTP ia, e kiia ana ko te DEHT, he terephthalate, ā, e whiriwhiria whānuitia ana hei whakakapinga kore-orthophthalate.