huahana

Papa kiʻiʻoniʻoni PVC,
PVC no ke kiʻiʻoniʻoni, ʻO ka resin PVC no ke kiʻiʻoniʻoni Vinyl Flexible, PVC resin no Rigid Vinyl Film,

ʻO ka kiʻiʻoniʻoni PVC me ka ʻole o ka plasticizer i kapa ʻia ʻo rigid vinyl film, aʻo ka plasticized PVC i kapa ʻia ʻo flexible vinyl film.
1.Flexible Vinyl Film

ʻO ke kiʻiʻoniʻoni vinyl maʻalahi he mau mea pale maikaʻi i ka aila a me ka momona akā hiki ke paʻa i ka oxygen.Loaʻa iā ia ka pili maikaʻi, ka mālamalama maikaʻi a me ke kū kūʻē i ka puncture.Hana kēia mau waiwai i ka PVC maʻalahi no ka ʻeke meaʻai e mālama i ka ʻiʻo a me nā huahana palaho hou (ke ʻae ʻia ka FDA).Eia nō naʻe, ʻoi aku ka haʻahaʻa o ka PVC i hoʻoheheʻe ʻia, ʻoi aku ka liʻiliʻi o ke kūpaʻa ʻana i nā kemika, a he haʻahaʻa haʻahaʻa loa kona ikaika ma mua o ka vinyl paʻa.

2. ʻOkiʻi Vinyl Film

He kiʻi ʻoniʻoni ikaika a māmā hoʻi ka vinyl paʻa, ʻike ʻia hoʻi he polyvinyl chloride unplasticized (uPVC).ʻO ia kekahi o nā kiʻiʻoniʻoni kūʻai haʻahaʻa lōʻihi loa a kūpaʻa i nā kemika he nui.ʻO ka maʻamau, hiki ke hoʻohana ʻia ka uPVC ma nā mahana a hiki i 60°C.Loaʻa iā ia ka ikaika a me ka modulus kiʻekiʻe ma mua o ka PVC maʻalahi, akā he haʻahaʻa haʻahaʻa ka paʻakikī, a pili i ke koʻikoʻi ma muli o ke kaiapuni.

He nui nā palena a me nā hemahema o PVC;hiki i ka plasticizer ke paʻakikī i nā kūlana anuanu a palupalu ma lalo o nā kūlana wela, kahi e hoʻololi ai i nā waiwai a hiki ke hoʻololi i ka ikaika o ka sila.Hoʻokuʻu pū ʻo PVC i nā wahi liʻiliʻi o ka hydrogen chloride i ka lewa a hoʻopuka i ka waiho kalapona ma luna o nā mea hoʻopaʻa i ka wā i wela ai.No kēia kumu, koi ʻia ka ventila maikaʻi i ka wā e hoʻopaʻa ai i ka PVC shrink-wrap.

NA PALAPALA
Hoʻohana ʻia ʻo PVC kiʻiʻoniʻoni ma ke ʻano he paʻi liʻiliʻi a hoʻopaʻa ʻia no nā huahana ʻoihana a me nā mea kūʻai aku a ma ke ʻano he pallet wrap, akā naʻe, ma kahi ʻano liʻiliʻi ma mua o nā kiʻiʻoniʻoni polyolefin.ʻO nā mea hoʻohana ʻē aʻe e pili ana i nā ʻeke, nā laina laina, ka ʻeke ʻeke ʻeke, ke kākoʻo lipine adhesive, nā lepili, nā ʻeke koko a me nā ʻeke IV.Hoʻopili pinepine ʻia ʻo PVDC i ka wā e pono ai ka hoʻomaikaʻi ʻana i nā waiwai pale.

He koho maikaʻi ka PVC i ʻāpono ʻia e FDA no ka ʻohi ʻana i ka ʻiʻo ʻulaʻula hou no ka mea he semi-permeable, ʻo ia hoʻi, lawa ka oxygen permeable e mālama i nā huahana ʻiʻo hou a mālama i kona waihoʻoluʻu ʻulaʻula.Ke koʻikoʻi ka ʻike, hoʻohana pinepine ʻia ʻo PVC.

ʻO ka Polyvinyl Chloride, i kapa ʻia ʻo PVC, ʻo ia kekahi o nā ʻano plastik i hana ʻia, ʻo ka lua o kēia manawa ka lua wale nō i ka polyethylene.Ua hoʻohana nui ʻia ka Polyvinyl chloride i ka ʻoihana, ka mahiʻai a me ke ola o kēlā me kēia lā.ʻO ka polyvinyl chloride kahi hui polymer polymerized e ka vinyl chloride.He thermoplastic.ʻO ka pauka melemele keʻokeʻo a i ʻole.Kūleʻa kemika maikaʻi loa.ʻO ke kūpaʻa wela maikaʻi ʻole a me ke kūpaʻa māmā, ʻoi aku ma mua o 100 ℃ a i ʻole ka lōʻihi o ka ʻike ʻana i ka lā i hoʻomaka e decompose hydrogen chloride, pono e hoʻohui i ka stabilizer.Maikaʻi ka insulation uila, ʻaʻole e wela.

Hoʻohana nui ʻia ka papa S-700 no ka hana ʻana i nā flakes alohilohi, a hiki ke kaomi ʻia i kahi ʻāpana paʻakikī a i ʻole semi-paʻakikī a i ʻole pepa no ka pūʻolo, mea papahele, kiʻi ʻoniʻoni paʻa no ka uhi ʻana (no ka pepa lole lole a i ʻole kiʻi ʻoniʻoni paka), a pēlā aku. e hoʻokuʻu ʻia i kahi ʻāpana paʻakikī a i ʻole semi-paʻakikī, pepa, a i ʻole ke ʻano ʻano ʻano ʻole no ka pūʻolo.A i ʻole hiki ke hoʻopaʻa ʻia no ka hana ʻana i nā hui, nā ʻāpana, nā ʻāpana uila, nā lako kaʻa a me nā moku.

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