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Ma ke ʻano he ʻāpana koʻikoʻi o nā huahana PVC flexible, he mana nui ka plasticizer i ka hana o nā huahana PVC flexible. Inā pono e hoʻohana ʻia nā huahana palupalu PVC (nā pale puka PVC anu) i nā mahana haʻahaʻa, pono e koho ʻia nā plasticizer me ke kūpaʻa wela maikaʻi.
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ʻO DOP lāua ʻo DOTP he mau plasticizers no nā kumu maʻamau i hoʻohana ʻia e hoʻoluʻolu i ka PVC, ʻoi aku ka maʻalahi o ka hana ʻana. ʻO ka ʻokoʻa nui ko lākou ʻano molekala: ʻo DOP, e pili pinepine ana iā DEHP, he orthophthalate, ʻoiai ʻo DOTP, i kapa ʻia ʻo DEHT, he terephthalate a ua koho pinepine ʻia ʻo ia he koho ʻē aʻe non-orthophthalate.