1. He aha te pepa PVC?
He rauemi pūmua te pepa PVC i hangaia mai i te vinyl chloride hei rauemi mata, me ngā mea whakau, ngā hinu whakahinuhinu, me ngā whakakī i tāpirihia. He tino pai te mahi antioxidant, he ātete kaha ki ngā waikawa me ngā tauhohenga redox, he kaha teitei, he tino pumau, ā, he kore e mura, ka taea te ātete ki ngā kino mai i te huringa āhuarangi. Ko ngā momo pepa PVC noa ko ngā momo mārama, mā, mangu, tae, me te hina.
2. He aha ngā painga o te pepa PVC?
He maha ngā painga o ngā pepa PVC, tae atu ki te ātete ki te waikura, te kore mura, ngā āhuatanga whakamahana, me te ātete ki te waikura. Hei tāpiri, ka taea te hangarua, ā, he iti ngā utu hanga. Nā te mea he maha ngā whakamahinga me te utu tika, kua mau tonu i a rātou tētahi tūranga i roto i te mākete pepa kirihou.
3. He aha te whakamahinga o ngā pepa PVC?
He tino maha ngā whakamahinga o ngā rau PVC, e wātea ana i roto i ngā momo maha pērā i ngā rau PVC mārama, ngā rau PVC hukapapa, ngā rau PVC matomato, ngā rōra rau PVC, me ētahi atu. Nā te pai o te mahi tukatuka, te iti o ngā utu hanga, te ātete ki te waikura, me ngā āhuatanga whakamarumaru, e whakamahia whānuitia ana ngā rau PVC hei hanga uhi here PVC, kāri PVC, kiriata mārō PVC, me ngā rau PVC mārō.
4. He aha ngā ngoikoretanga o ngā pepa PVC?
Ko te pepa PVC he kirihou e whakamahia whānuitia ana, he mea hanga mai i te polyvinyl chloride, me ngā plasticizer me ngā antioxidants. Kāore i te paitini i a ia anō, engari ko ngā rauemi āwhina matua, pērā i ngā plasticizer me ngā antioxidants, he paitini. Ko ngā plasticizer e whakamahia ana i roto i ngā pepa PVC o ia rā ko te dibutyl terephthalate me te dioctyl phthalate, he paitini ēnei e rua. He paitini anō hoki te antioxidant lead stearate e whakamahia ana i roto i te PVC. Ka taea e ngā pepa PVC kei roto ngā tote mata te tuku i te mata ina pa atu ki ngā whakarewa pērā i te etanoru me te etera. I ētahi wā ka whakamahia ngā pepa PVC me ngā antioxidants kei roto te mata mō ngā takai kai, engari ina pa atu ki ngā kai pērā i ngā rākau paraoa parai, ngā keke parai, ngā ika parai, ngā mīti kua tunua, ngā keke reka, me ngā kai mātao, ka horapa ngā ngota mata ki roto i te hinu. Nō reira, kaua e whakamahia ngā putea kirihou pepa PVC hei pupuri kai, inā koa ngā kai hinuhinu. Hei tāpiri, i ngā pāmahana teitei ake i te 50°C, ka pirau haere ngā hua kirihou polyvinyl chloride, ka tukuna te hau hauwai chloride, he mea kino ki te hauora.
5. He Haumaru te Kai mō ngā Pepa PVC?
Ka taea te haumaru i ngā pepa PVC mō te kai, engari mēnā ka hangaia me te PVC kounga kai me ngā tāpiringa e tutuki ana i ngā whakaritenga. Kāore he paitini o ngā pepa PVC kounga kai, kāore he kakara, ā, he pai mō te pa atu ki te kai, ahakoa he pānga ā-kore, he pānga tika rānei, i runga i te hanganga me te whakamahinga. Ko ēnei pepa PVC haumaru kai e whakamahia whānuitia ana i roto i ngā takai kai, ngā putea mirumiru, ngā kiriata piri, ngā paepae kai, me ngā uhi tiaki.
Heoi, kāore ngā pepa PVC katoa e kiia ana he haumaru mō te kai. Tērā pea kei roto i ngā pepa PVC ā-ahumahi he mea hanga kirihou, he tāpiringa rānei kāore i whakaaetia mō te pa atu ki te kai. Hei whakarite i te haumaru, me manatoko tonu kei te tutuki te pepa PVC i ngā ture pa atu ki te kai a te FDA me te EU (EC), ā, me tono atu hoki mō ngā pepa raraunga haumaru rauemi a te kaihanga.
6. He ātete mura ngā pepa PVC?
Ae, he ātete mura ngā pepa PVC ki te nuinga o ngā kirihou. Nā te nui o te hauota, ka tineia e te PVC ia ia anō ina tangohia te pūtake mura o waho, ā, ka tino whakaitihia te horapa o te ahi.
He maha ngā whakamahinga o ngā pepa PVC i roto i ngā tono e tino hira ana te haumaru ahi, pērā i ngā rauemi hanga, ngā panera pakitara, te whakamarumaru hiko, ngā tohu, me ngā whare ā-ahumahi. I roto i te nuinga o ngā wā, ka taea e ngā pepa PVC te tutuki i ngā paerewa ātete mura o te ao pērā i te UL94 V-0/V-1, i runga rānei i te hanganga.
Mō ngā kaupapa he paerewa haumaru ahi tino pakari, ka taea te whakarite i ngā pepa PVC ātete mura me te mahi whakarei ake kia tutuki ai ngā ture hanga motuhake me ngā whakaritenga ātete ahi.
