ʻO ka ʻili palaki ma ke ʻano he mea paʻi, ua paʻi ʻia ia ma ke ʻano he ʻeke hoʻopili, me ka māmā a me ke aniani, ke kūpaʻa i ka makū a me ke kūpaʻa oxygen, ka paʻa maikaʻi o ka ea, ka paʻakikī a me ke kūpaʻa pelu, ka ʻili laumania, hiki ke pale i ka huahana, a hiki ke hana hou i ke ʻano o ka huahana, ke kala a me nā pono ʻē aʻe. Me ka hoʻomohala ʻana o ka ʻoihana petrochemical, ʻoi aku ka nui o nā ʻano o ka ʻili palaki, ka polyethylene (PE) ʻili palaki i hoʻohana pinepine ʻia, polyvinyl chloride (PVC), polystyrene (PS), polyester film (PET), polypropylene (PP), nylon (PA) a pēlā aku. Eia kekahi, he nui nā ʻano ʻili palaki ʻē aʻe, manaʻo ka mea hana hoʻopili palupalu ʻoihana ʻo Shunfa packing he mea pono e hoʻomaopopo i nā ʻano o ka ʻili palaki ma mua o nā ʻeke hoʻopili maʻamau. Ua hoʻokaʻawale kūikawā ʻia nā ʻano o 11 mau ʻano o ka ʻili palaki ma lalo o ka ʻeke hoʻopili no kāu kuhikuhi.
1. Polyvinyl chloride (PVC)
Ua like nā pono o ka kiʻiʻoniʻoni PVC a me PET, a pili like ia i nā ʻano o ka transparency, breathability, acid a me alkali resistance. Hana ʻia nā ʻeke meaʻai mua he nui me nā ʻeke PVC. Eia nō naʻe, hiki i ka PVC ke hoʻokuʻu i nā carcinogens ma muli o ka polymerization piha ʻole o kekahi mau monomers i ke kaʻina hana hana, no laila ʻaʻole kūpono ia no ka hoʻopiha ʻana i nā meaʻai-grade, a ua nui ka poʻe i hoʻololi i nā ʻeke PET packaging, e hōʻailona ana i ka hōʻailona mea ʻo No. 3.
2. Polystyrene (PS)
He haʻahaʻa ka omo ʻana o ka wai o ka kiʻiʻoniʻoni PS, akā ʻoi aku ka maikaʻi o kona kūpaʻa dimensional, a hiki ke hana ʻia ma ke kī ʻana i ka make, ke kaomi ʻana i ka make, ka extrusion a me ka thermoforming. Ma keʻano laulā, ua māhele ʻia i ʻelua mau ʻāpana foaming a me unfoaming e like me ka hele ʻana i ke kaʻina hana foaming. Hoʻohana nui ʻia ka Unfoamed PS i nā mea hana hale, nā mea pāʻani, nā pepa, a me nā mea ʻē aʻe, a hiki ke hana pinepine ʻia i loko o nā pahu i piha i nā huahana waiū fermented, a me nā mea ʻē aʻe. I nā makahiki i hala iho nei, ua hoʻohana nui ʻia ia i ka hana ʻana i nā mea ʻaina hoʻolei, a ʻo ka hōʻailona mea he No. 6.
3. Polypropylene (PP)
Hoʻohana ka ʻili PP maʻamau i ka hoʻoheheʻe ʻana i ka puhi, kaʻina hana maʻalahi a me ke kumukūʻai haʻahaʻa, akā ʻoi aku ka haʻahaʻa o ka hana optical ma mua o CPP a me BOPP. ʻO ka hiʻohiʻona nui o PP ke kūpaʻa wela kiʻekiʻe (ma kahi o -20 ° C ~120 ° C), a ʻo ke kiko heheʻe he 167 ° C, kūpono no ka hoʻopiha ʻana i ka waiū soy, ka waiū laiki a me nā huahana ʻē aʻe e pono ai ka disinfection mahu. ʻOi aku kona paʻakikī ma mua o PE, ka mea i hoʻohana ʻia e hana i nā pāpale ipu, a ʻo ka hōʻailona mea he No. 5. Ma ke ʻano laulā, ʻoi aku ka paʻakikī o PP, a ʻoi aku ka ʻālohilohi o ka ʻili, a ʻaʻole ia e hana i kahi ʻala ʻawaʻawa i ka wā e puhi ai, ʻoiai ʻoi aku ka kaumaha o ke ʻala kukui o PE.
4. ʻIliʻili Polyester (PET)
ʻO ka ʻili polyester (PET) kahi plastic ʻenekinia thermoplastic. ʻO ka mea ʻili lahilahi i hana ʻia me ka pepa mānoanoa ma o ke ʻano extrusion a me ke kīkoʻo bidirectional. Hōʻike ʻia ka ʻili polyester e nā waiwai mechanical maikaʻi loa, ke kūpaʻa kiʻekiʻe, ka paʻakikī a me ka paʻakikī, ke kū'ē ʻana i ka puncture, ke kū'ē ʻana i ka friction, ke kū'ē ʻana i ke kiʻekiʻe a me ka haʻahaʻa o ka mahana, ke kū'ē ʻana i ka kemika, ke kū'ē ʻana i ka aila, ka paʻa ʻana o ka ea a me ka mālama ʻana i ka ʻala maikaʻi, ʻo ia kekahi o nā substrates film composite resistance permeability i hoʻohana pinepine ʻia, akā ʻaʻole maikaʻi ke kū'ē ʻana o ka corona, a kiʻekiʻe ke kumukūʻai. ʻO ka mānoanoa o ka ʻili maʻamau he 0.12mm, kahi mea maʻamau i hoʻohana ʻia ma ke ʻano he mea waho o ka ʻeke ʻeke meaʻai, a maikaʻi ka paʻi ʻana. E kaha i ka hōʻailona mea 1 i loko o ka huahana plastik.
5. Nailoni (PA)
ʻO ka ʻili plastik Nylon (polyamide PA) i kēia manawa he hana ʻoihana o nā ʻano like ʻole, ʻo ia hoʻi nā ʻano nui i hoʻohana ʻia no ka hana ʻana i ka ʻili he nylon 6, nylon 12, nylon 66 a pēlā aku. He ʻili paʻakikī loa ka ʻili Nylon, maikaʻi ka transparency, a he luster maikaʻi. He maikaʻi loa ka ikaika tensile, ka ikaika tensile, ke kū'ē ʻana i ke kiʻekiʻe a me ka haʻahaʻa o ka mahana, ke kū'ē ʻana i ka aila, ke kū'ē ʻana i ka organic solvent, ke kū'ē ʻana i ka ʻaʻahu a me ke kū'ē ʻana i ka puncture, a he palupalu iki ka ʻili, maikaʻi loa ke kū'ē ʻana i ka oxygen, akā he maikaʻi ʻole ka pale wai mahu, ka omo ʻana o ka makū, ka nui o ka permeability makū, a maikaʻi ʻole ka sila wela. Kūpono no ka hoʻopili ʻana i nā waiwai paʻakikī, e like me ka meaʻai momona, ka meaʻai palai, ka meaʻai vacuum packaging, ka meaʻai kuke, a pēlā aku.
6. Polyethylene Density Kiʻekiʻe (HDPE)
Ua kapa ʻia ʻo ka kiʻiʻoniʻoni HDPE he geomembrane a i ʻole ke kiʻiʻoniʻoni impermeable. ʻO kona kiko heheʻe ma kahi o 110 ℃-130 ℃, a ʻo kona density pili he 0.918-0.965kg/cm3. He crystallinity kiʻekiʻe, non-polar thermoplastic resin, ʻo ke ʻano HDPE mua he keʻokeʻo waiū, ma kahi ʻāpana liʻiliʻi o kahi kekelē o ka translucent. Loaʻa iā ia ke kūpaʻa maikaʻi i nā mahana kiʻekiʻe a me ka haʻahaʻa a me ke kūpaʻa hopena, ʻoiai ma nā mahana haʻahaʻa -40F. ʻO kona kūpaʻa kemika, ka paʻakikī, ka paʻakikī, ka ikaika mechanical, nā waiwai haehae he maikaʻi loa, a me ka hoʻonui ʻana o ka density, nā waiwai mechanical, nā waiwai pale, ka ikaika tensile a me ke kūpaʻa wela e hoʻomaikaʻi ʻia, hiki ke kū'ē i ka waikawa, alkali, nā mea hoʻoheheʻe organik a me nā mea ʻē aʻe. ʻIke: ʻo ka hapa nui opaque, manaʻo e like me ka wax, ka ʻūlū ʻana i ka ʻeke plastik a i ʻole ka ʻūlū ʻana i ka wā e rustling.
7. Polyethylene Density Haʻahaʻa (LDPE)
He haʻahaʻa ka nui o ka ʻili LDPE, palupalu, kū'ē i ka mahana haʻahaʻa, maikaʻi ke kūpaʻa kemika i ka hopena, ma lalo o nā kūlana maʻamau ka waikawa (koe wale nō ka waikawa oxidizing ikaika), alkali, ka pala paʻakai, me ka insulation uila maikaʻi. Hoʻohana nui ʻia ka LDPE i nā ʻeke plastik, ʻo ka hōʻailona mea he No. 4, a hoʻohana nui ʻia kāna huahana i nā ʻenekinia kīwila a me nā mahiʻai, e like me geomemofilm, ʻili mahiʻai (ʻili hoʻokahe, ʻili mulch, ʻili mālama, a pēlā aku). ʻIke: ʻOi aku ka palupalu o ka ʻeke plastik i hana ʻia me LDPE, emi ka haʻalulu i ka wā e kāwili ai, palupalu ka ʻili plastik waho a maʻalahi hoʻi e haehae i ka LDPE, a ʻoi aku ka brittle a me ka paʻakikī o ka PVC a i ʻole PP film.
8. ʻAlaʻona Polyvinyl (PVA)
ʻO ka ʻili hui pale kiʻekiʻe Polyvinyl alcohol (PVA) he ʻili me ka waiwai pale kiʻekiʻe i hoʻokumu ʻia ma ka uhi ʻana i ka wai wai hoʻoheheʻe wai i hoʻololi ʻia o ka polyvinyl alcohol ma luna o ka substrate o ka polyethylene plastic. No ka mea he mau waiwai pale maikaʻi ka ʻili hui pale kiʻekiʻe o ka polyvinyl alcohol a hoʻokō i nā koi o ka palekana o ke kaiapuni, ʻālohilohi loa ka manaʻolana mākeke o kēia mea hoʻopili, a he ākea ka mākeke ma ka ʻoihana meaʻai.
9. Ke Kiʻiʻoniʻoni Polypropylene Hoʻolei (CPP)
ʻO ke kiʻiʻoniʻoni polypropylene hoʻolei (CPP) he ʻano kiʻiʻoniʻoni extrusion pālahalaha ʻaʻole hiki ke hoʻolōʻihi ʻia, ʻaʻole i kuhikuhi ʻia i hana ʻia e ka hoʻoluʻu quench melt. Hōʻike ʻia e ka wikiwiki o ka hana ʻana, ka hua kiʻekiʻe, ka transparency o ke kiʻiʻoniʻoni, ka ʻōlinolino, ka waiwai pale, ka palupalu, ka like ʻana o ka mānoanoa, hiki ke kū i ka kuke ʻana i ka mahana kiʻekiʻe (ka mahana kuke ma luna o 120 ° C) a me ka sila wela haʻahaʻa (ka mahana sila wela ma lalo o 125 ° C), maikaʻi loa ke kaulike hana. ʻO nā hana hahai e like me ka paʻi ʻana, ka composite he maʻalahi, hoʻohana nui ʻia i nā lole, ka meaʻai, nā mea pono o kēlā me kēia lā, hana i ka substrate o loko o ka hui pū ʻana, hiki ke hoʻolōʻihi i ke ola papa o ka meaʻai, hoʻonui i ka nani.
10. ʻO ke kiʻiʻoniʻoni polypropylene ʻelua ala (BOPP)
ʻO ka kiʻiʻoniʻoni polypropylene Biaxial (BOPP) kahi mea ʻeke ʻeke palupalu moakaka i hoʻomohala ʻia i nā makahiki 1960, he laina hana kūikawā ia e kāwili i nā mea maka polypropylene a me nā mea hoʻohui hana, hoʻoheheʻe a kāwili, hana i nā pepa, a laila hana i kahi kiʻiʻoniʻoni ma ke kīkoʻo ʻana. ʻAʻole wale kēia kiʻiʻoniʻoni i nā pono o ka haʻahaʻa haʻahaʻa, ke kūpaʻa ʻana i ka corrosion a me ke kūpaʻa wela maikaʻi o ka resin PP mua, akā he mau waiwai optical maikaʻi hoʻi, ikaika mechanical kiʻekiʻe, nā kumu waiwai maka, nā waiwai paʻi maikaʻi loa, a hiki ke hui pū ʻia me ka pepa, PET a me nā substrates ʻē aʻe. Me ka wehewehe kiʻekiʻe a me ka gloss, maikaʻi loa ka omo ʻana o ka ʻīnika a me ka hoʻopili ʻana i ka uhi, ikaika tensile kiʻekiʻe, nā waiwai pale aila maikaʻi loa, nā ʻano electrostatic haʻahaʻa.
11. ʻO ke kiʻiʻoniʻoni i hoʻoheheʻe ʻia
Loaʻa i ka ʻili hao nā ʻano o ka ʻili plastik a me ka metala. ʻO ke kuleana o ka uhi alumini ma luna o ka ʻili o ka ʻili, ʻo ia ke ālai i ka mālamalama a pale i ka radiation ultraviolet, kahi e hoʻolōʻihi ai i ke ola o nā mea i loko a hoʻomaikaʻi i ka ʻōlinolino o ka ʻili, e hoʻololi ana i ka pepa alumini i kekahi ʻano, a he waiwai pale haʻahaʻa, nani a maikaʻi hoʻi. No laila, hoʻohana nui ʻia ka ʻili hao i loko o ka ʻōpala hui, hoʻohana nui ʻia i nā biscuits a me nā ʻōpala meaʻai maloʻo, nā lāʻau lapaʻau a me nā mea hoʻonani.
Ka manawa hoʻouna: Iulai-19-2023