1. He aha ka pepa PVC?
He mea polymer ka pepa PVC i hana ʻia mai ka vinyl chloride ma ke ʻano he mea maka kumu, me nā mea hoʻopaʻa, nā lubricants, a me nā mea hoʻopihapiha i hoʻohui ʻia. Hōʻike ia i ka hana antioxidant maikaʻi loa, ke kūpaʻa ikaika i nā waikawa a me nā hopena redox, ikaika kiʻekiʻe, kūpaʻa koʻikoʻi, a me ka hiki ʻole ke lapalapa, e hiki ai ke pale aku i ka pōʻino mai ka loli o ke aniau. ʻO nā ʻano maʻamau o nā pepa PVC e komo pū me nā ʻano moakaka, keʻokeʻo, ʻeleʻele, kala, a me ka hina.
2. He aha nā pono o kahi pepa PVC?
Hāʻawi nā pepa PVC i nā pono he nui, me ke kūpaʻa ʻana i ka pala, ka hiki ʻole ke lapalapa, nā waiwai insulation, a me ke kūpaʻa ʻana i ka oxidation. Eia kekahi, hiki ke hana hou ʻia a he haʻahaʻa nā kumukūʻai hana. Ma muli o ko lākou versatility a me ke kumukūʻai kūpono, ua paʻa mau lākou i kahi kūlana ma ka mākeke pepa plastic.
3. He aha ka mea e hoʻohana ʻia ai nā pepa PVC?
He nui nā ʻano like ʻole o nā pepa PVC, loaʻa i nā ʻano like ʻole e like me nā pepa PVC moakaka, nā pepa PVC hau, nā pepa PVC ʻōmaʻomaʻo, nā ʻōwili pepa PVC, a me nā mea hou aku. Mahalo i kā lākou hana hana maikaʻi, nā kumukūʻai hana haʻahaʻa, ke kūpaʻa i ka pala, a me nā waiwai insulation, hoʻohana pinepine ʻia nā pepa PVC e hana i nā uhi hoʻopaʻa PVC, nā kāleka PVC, nā ʻiliʻili paʻakikī PVC, a me nā pepa PVC paʻakikī.
4. He aha nā hemahema o nā pepa PVC?
ʻO ka pepa PVC kahi palaki i hoʻohana pinepine ʻia i hana ʻia mai ka polyvinyl chloride, me nā plasticizers a me nā antioxidants. ʻAʻole ia he mea ʻawaʻawa iā ia iho, akā ʻo nā mea kōkua nui, e like me nā plasticizers a me nā antioxidants, he mea ʻawaʻawa. ʻO nā plasticizers i hoʻohana ʻia i nā pepa PVC o kēlā me kēia lā, ʻo ia ka dibutyl terephthalate a me ka dioctyl phthalate, ʻo ia mau mea ʻawaʻawa ʻelua. ʻO ka antioxidant lead stearate i hoʻohana ʻia i loko o PVC he mea ʻawaʻawa nō hoʻi. Hiki i nā pepa PVC me nā paʻakai kēpau ke hoʻokuʻu i ke kēpau ke hoʻopili lākou me nā mea hoʻoheheʻe e like me ka ethanol a me ka ether. Hoʻohana pinepine ʻia nā pepa PVC me nā antioxidants i hoʻokumu ʻia i ke kēpau no ka hoʻopili ʻana i ka meaʻai, akā ke hoʻopili lākou me nā meaʻai e like me nā lāʻau palaoa palai, nā keke palai, nā iʻa palai, nā ʻiʻo i kuke ʻia, nā mea ʻono, a me nā meaʻai māmā, hiki i nā mole kēpau ke hoʻolaha i loko o ka ʻaila. No laila, ʻaʻole pono e hoʻohana ʻia nā ʻeke palaki pepa PVC no ka paʻa ʻana i ka meaʻai, ʻoiai nā meaʻai ʻaila. Eia kekahi, i nā mahana kiʻekiʻe a puni 50°C, palaho mālie nā huahana palaki polyvinyl chloride, e hoʻokuʻu ana i ke kinoea hydrogen chloride, he mea ʻino ia i ke olakino.
5. Palekana anei nā pepa PVC i ka meaʻai?
Hiki i nā pepa PVC ke palekana i ka meaʻai, akā inā hana ʻia me ka PVC papa meaʻai a me nā mea hoʻohui kūlike. ʻAʻohe ʻawahia nā pepa PVC papa meaʻai, ʻaʻohe ʻala, a kūpono no ka hoʻopili pololei ʻana i ka meaʻai, ma muli o kā lākou ʻano a me ka hoʻohana ʻana. Hoʻohana pinepine ʻia kēia mau pepa PVC palekana i ka meaʻai i nā ʻōpala meaʻai, nā ʻeke blister, nā ʻiliʻili paʻa, nā pā meaʻai, a me nā uhi pale.
Eia nō naʻe, ʻaʻole i manaʻo ʻia nā pepa PVC āpau he palekana no ka meaʻai. Loaʻa paha i nā pepa PVC ʻoihana nā plasticizer a i ʻole nā mea hoʻohui i ʻae ʻole ʻia no ka hoʻopili ʻana i ka meaʻai. No ka hōʻoia ʻana i ka palekana, e hōʻoia mau i ka kūlike o ka pepa PVC me nā lula pili meaʻai FDA a me EU (EC), a noi i nā pepa ʻikepili palekana mea a ka mea hana.
6. He pale ahi anei nā pepa PVC?
ʻAe, he kūlohelohe nā pepa PVC i ka pale ʻana i ka lapalapa i hoʻohālikelike ʻia me nā plastics ʻē aʻe he nui. Mahalo i ko lākou kiʻekiʻe o ka chlorine, hoʻopau ponoʻī ʻo PVC ke wehe ʻia ke kumu lapalapa o waho, kahi e hōʻemi nui ai i ka laha ʻana o ke ahi.
Hoʻohana pinepine ʻia nā pepa PVC i nā noi kahi e koʻikoʻi ai ka palekana ahi, e like me nā mea kūkulu hale, nā panela paia, ka insulation uila, nā hōʻailona, a me nā pā ʻoihana. I nā hihia he nui, hiki i nā pepa PVC ke hoʻokō i nā kūlana pale lapalapa honua e like me UL94 V-0/V-1 a i ʻole like, ma muli o ke ʻano.
No nā papahana me nā kūlana palekana ahi paʻa, hiki ke hoʻopilikino ʻia nā pepa PVC pale lapalapa me ka hana i hoʻonui ʻia e hoʻokō i nā code hale kikoʻī a me nā koi pale ahi.
