1. He aha te pepa PVC pakari?
Ko te ingoa katoa o te pepa pakari PVC ko te pepa pakari polyvinyl chloride. Ko te pepa pakari PVC he rauemi polymer i hangaia mai i te vinyl chloride hei rauemi mata, me ngā whakaū, ngā hinu whakahinuhinu me ngā whakakī i tāpirihia. He tino teitei te antioxidant, he ātete waikawa kaha me te whakaiti, he kaha teitei, he tino pumau me te kore e mura, ā, ka taea te ātete ki te waikura i puta mai i te huringa āhuarangi. Ko ngā pepa pakari PVC noa ko ngā pepa PVC mārama, ngā pepa PVC mā, ngā pepa PVC mangu, ngā pepa PVC tae, ngā pepa PVC hina, me ētahi atu.
2. He aha ngā painga o te pepa PVC pakari?
He maha ngā painga o ngā pepa PVC pakari pērā i te ātete ki te waikura, te kore mura, te ārai i te haukū, me te ātete ki te waikura. Hei tāpiri, ka taea te tukatuka anō, ā, he iti ngā utu whakaputa. Nā te whānuitanga o ngā whakamahinga me ngā utu e taea ana te utu, kua noho tonu rātou hei wāhanga o te mākete pepa kirihou. I tēnei wā, kua eke te hangarau whakapai ake me te hoahoa o tō tātou whenua mō ngā pepa PVC ki te taumata matatau o te ao.
3. He aha ngā mahi a te pepa PVC?
He tino maha ngā whakamahinga o ngā pepa PVC, ā, he maha ngā momo pepa PVC, pērā i ngā pepa PVC mārama, ngā pepa PVC hukapapa, ngā pepa PVC matomato, ngā rōra pepa PVC, me ētahi atu. Nā te pai o te tukatuka, te iti o te utu hanga, te ātete ki te waikura me te whakamarumaru. He whānui te whakamahinga o ngā pepa PVC, ā, ko te nuinga o te wā he hanga i: ngā uhi here PVC, ngā kāri PVC, ngā kiriata mārō PVC, ngā pepa PVC mārō, me ētahi atu.
4. He aha ngā ngoikoretanga o te pepa PVC?
He kirihou rongonui anō hoki te pepa PVC. He kapia i hangaia mai i te kapia polyvinyl chloride, te plasticizer, me te antioxidant. Kāore i te paitini i a ia anō. Engari he paitini ngā rauemi āwhina matua pērā i ngā plasticizer me ngā antioxidants. Ko ngā plasticizer i roto i ngā kirihou pepa PVC o ia rā e whakamahi ana i te dibutyl terephthalate me te dioctyl phthalate. He paitini ēnei matū. He paitini anō hoki te antioxidant lead stearate e whakamahia ana i roto i te PVC. Ka whakarewahia te mata e ngā pepa PVC kei roto te tote mata antioxidants ina pa atu ki ngā whakarewa pērā i te etanoru me te etera. Ka whakamahia ngā pepa PVC kei roto te mata mō ngā takai kai. Ina tūtaki ki ngā rākau paraoa parai, ngā keke parai, ngā ika parai, ngā hua mīti kua tunua, ngā keke me ngā kai mātao, me ētahi atu, ka horapa ngā ngota mata ki roto i te hinu. Nō reira, kāore e taea te whakamahi i ngā putea kirihou pepa PVC hei pupuri kai, inā koa ngā kai kei roto te hinu. Hei tāpiri, ka memeha haere ngā hua kirihou polyvinyl chloride i te hau hauwai hauota i ngā pāmahana teitei ake, pērā i te 50°C, he kino ki te tinana tangata.
5. He Haumaru te Kai i runga i te Pepa PVC?
Ka taea te haumaru i ngā pepa PVC mō te kai, engari mēnā ka hangaia mā te whakamahi i ngā rauemi 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 whakapā atu ki te kai, i runga i te hanganga me te whakamahinga.
He whānuitia te whakamahinga o ngā pepa PVC haumaru kai i roto i ngā takai kai, ngā takai mirumiru, ngā kiriata piri, ngā paepae kai, me ngā uhi tiaki. He pai te ātete matū, te mārama, me ngā āhuatanga ārai, ā, he pai mō ngā tono maha e pā ana ki te kai.
Heoi, ehara i te mea he haumaru kai ngā pepa PVC katoa. Tērā pea kei roto i ngā pepa PVC kounga ahumahi ngā mea whakapūkara, ngā tāpiringa rānei kāore i whakaaetia mō te whakapā atu ki te kai. Hei whakarite i te haumaru, me manatoko tonu kei te tutuki te pepa PVC i ngā ture whakapā kai a te FDA, EU (EC), me te tono tiwhikete haumaru rauemi mai i te kaihanga.
6. He ātete mura te pepa PVC?
Ae, he ātete mura te pepa PVC ki te nuinga o ngā rauemi kirihou. Nā te nui o te hauota, ka tineia e te PVC ia ia anō ina tangohia te pūtake mura o waho, ā, ka whakaitihia te horapa o te ahi.
He mea noa te whakamahi i ngā pepa PVC i roto i ngā tono e nui 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 tino whakaritenga haumaru ahi, ka taea te whakarite i ngā pepa PVC ātete mura me te mahi whakarei ake kia tutuki ai ngā ture hanga motuhake me ngā paerewa ātete ahi.
