Nā te mea he tino hototahi ngā taputapu tukatuka PVC ki te PVC, ā, he nui te taumaha ngota ngota (tata ki te (1-2) × 105-2.5 × 106g/mol) me te kore paura paninga, ka werahia, ka whakaranua hoki i te wā e hangaia ana. Ka whakangawarihia, ka piri pūmau hoki ngā matūriki kapia e karapoti ana. Mā te waku me te whakawhiti wera, ka whakatairangahia te rewa (kiri). Kāore te matotoru o te rewa e heke, e piki ake rānei; Nā te hononga o ngā mekameka ngota ngota, kua pai ake te ngāwari, te kaha, me te toronga o te PVC.
Hei tāpiritanga, nā te mea ko ngā wāhanga hototahi me ngā wāhanga kore hototahi o te PVC he āwhina tukatuka me te hanganga anga-matua. I te nuinga o te wā, kāore e hototahi ki te PVC, nō reira he hinu whakahinuhinu o waho, engari kāore e totohu, e hanga unahi ana, e whakaroa ana i te rewa. Nō reira, i runga i ēnei āhuatanga tono, ka taea te wehewehe i ngā āwhina tukatuka PVC kia rua ngā wāhanga: te whānui me te hinu whakahinuhinu. Ko te mahi a ngā āwhina tukatuka PVC whānui he whakaiti i te pāmahana rewa, he whakarei ake i te kaha me te ōritetanga o te wera, he whakaiti i te pakaru rewa, me te whakarato i te ngāwari nui ake. He nui ngā painga o ēnei mahi mō te tukatuka PVC: ko te whakaiti i te pāmahana rewa he whakaroa i te wā pumau wera, he whakarato i te āhuatanga haumaru mō te whakamahinga o ngā rauemi hangarua, me te tuku i te tukatuka anō; He whakapai ake i te kaha wera me te whakaiti i te pakaru rewa, ko te tikanga ka taea te whakanui ake i te tere tukatuka, te whakateretere i te kukume, me te whakapai ake i te kounga āhua me te āhua; He whakapai ake i te ōritetanga o te rewa, ka taea te whakaiti i ngā ngaru o te mata me te pakaru rewa o te rauemi kua puta, ā, ka piki ake te hua, ka whakarei ake i te ngāwari me te āhua wera.
Wā tuku: Hepetema-05-2024
