Hoʻohana pinepine ʻia nā kiʻiʻoniʻoni like ʻole i kēlā me kēia lā. He aha nā mea i hana ʻia ai kēia mau kiʻiʻoniʻoni? He aha nā ʻano hana o kēlā me kēia? Eia ka wehewehe kikoʻī i nā kiʻiʻoniʻoni plastik i hoʻohana mau ʻia i ke ola o kēlā me kēia lā.
ʻO ke kiʻi ʻoniʻoni he kiʻiʻoniʻoni i hana ʻia me ka polyvinyl chloride, polyethylene, polypropylene, polystyrene a me nā resins ʻē aʻe, hoʻohana pinepine ʻia i ka hoʻopili ʻana, ke kūkulu ʻana, a me ke ʻano o ka uhi uhi, etc.
Hiki ke hoʻokaʻawale ʻia ke kiʻi plastik i loko
-Kiʻiʻoniʻoni: kiʻiʻoniʻoni puhi, kiʻiʻoniʻoni calendered, kiʻi ʻoniʻoni, kiʻi kiʻiʻoniʻoni, etc.;
- Kiʻiʻoniʻoni hale mahiʻai, mulch film, etc.;
– Nā kiʻiʻoniʻoni no ka hoʻopili ʻana (me nā kiʻiʻoniʻoni composite no ka hoʻopili ʻana i ka lāʻau lapaʻau, nā kiʻiʻoniʻoni composite no ka ʻeke meaʻai, etc.).
ʻO nā pono a me nā pōʻino o ke kiʻi plastik:
Nā hiʻohiʻona hana o nā kiʻiʻoniʻoni plastik nui:
Kiʻiʻoniʻoni Polypropylene Biaxially (BOPP)
ʻO ka polypropylene kahi resin thermoplastic i hana ʻia e ka polymerization o propylene. ʻO nā mea Copolymer PP he haʻahaʻa haʻahaʻa haʻahaʻa wela (100 ° C), haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa, akā ʻoi aku ka ikaika o ka hopena, a piʻi ka ikaika o ka hopena me ka piʻi ʻana o ka ethylene content. ʻO ka mahana hoʻonāwaliwali o Vicat o PP he 150°C. Ma muli o ke kūlana kiʻekiʻe o ka crystallinity, ʻoi aku ka maikaʻi o kēia mea i ka ʻili a me nā waiwai kūʻē. ʻAʻole loaʻa iā PP nā pilikia hoʻoluhi kaiapuni.
ʻO ke kiʻiʻoniʻoni polypropylene Biaxially oriented (BOPP) kahi mea hoʻopihapiha hoʻololi i hoʻomohala ʻia i nā makahiki 1960. Hoʻohana ia i kahi laina hana kūikawā e hoʻohui i nā mea waiwai polypropylene a me nā mea hoʻohui hana, hoʻoheheʻe a kāwili iā lākou i loko o nā pepa, a laila hoʻohola iā lākou i nā kiʻiʻoniʻoni. Hoʻohana nui ʻia ia i ka hoʻopili ʻana i ka meaʻai, candy, cigarette, ti, juice, milk, textiles, etc., a loaʻa iā ia ka inoa ʻo "Packaging Queen". Eia kekahi, hiki ke hoʻohana ʻia i ka hoʻomākaukau ʻana i nā huahana hana kiʻekiʻe e like me nā membrane uila a me nā membrane microporous, no laila ākea loa ka manaʻo hoʻomohala o nā kiʻiʻoniʻoni BOPP.
ʻAʻole i loaʻa i ka BOPP film nā mea maikaʻi o ka haʻahaʻa haʻahaʻa, ke kūpaʻa corrosion maikaʻi a me ke kūpaʻa wela maikaʻi o ka resin PP, akā loaʻa nō hoʻi nā waiwai optical maikaʻi, ka ikaika mechanical kiʻekiʻe a me nā kumu waiwai o nā mea maka. Hiki ke hoʻohuiʻia ke kiʻi BOPP me nā mea'ē aʻe me nā waiwai kūikawā e hoʻomaikaʻi hou a hoʻomaikaʻi paha i ka hana. ʻO nā mea maʻamau i hoʻohana ʻia me ka PE film, salivating polypropylene (CPP) film, polyvinylidene chloride (PVDC), alumini film, etc.
Kiʻiʻoniʻoni Polyethylene Māmā Haʻahaʻa (LDPE)
ʻO ka kiʻiʻoniʻoni polyethylene, ʻo ia hoʻi ʻo PE, loaʻa nā hiʻohiʻona o ka pale ʻana i ka wai a me ka haʻahaʻa haʻahaʻa haʻahaʻa.
ʻO ka polyethylene haʻahaʻa haʻahaʻa (LPDE) he resin synthetic i loaʻa e ka ethylene radical polymerization ma lalo o ke kaomi kiʻekiʻe, no laila ua kapa ʻia ʻo ia ʻo "high-pressure polyethylene". ʻO ka LPDE he mole mole me nā lālā o nā lōʻihi like ʻole ma ke kaulahao nui, me kahi o 15 a 30 ethyl, butyl a i ʻole nā lālā lōʻihi i kēlā me kēia 1000 carbon atoms i ke kaulahao nui. No ka mea, ʻoi aku ka lōʻihi o ke kaulahao molecular i nā kaulahao lālā lōʻihi a pōkole, ʻoi aku ka haʻahaʻa haʻahaʻa o ka huahana, palupalu, haʻahaʻa haʻahaʻa haʻahaʻa, kūpaʻa hopena maikaʻi, kūpaʻa kemika maikaʻi, a me ke kūpaʻa maʻamau (koe naʻe nā waikawa oxidizing ikaika), Alkali, paʻakai paʻakai, maikaʻi. nā waiwai hoʻokaʻawale uila. ʻO Translucent a me ka ʻālohilohi, he kūpaʻa kemika maikaʻi loa, hoʻopaʻa ʻia ka wela, ke kū ʻana o ka wai a me ka pale ʻana i ka makū, ke kūpaʻa manuahi, a hiki ke hoʻolapalapa ʻia. ʻO kona hemahema nui ʻo ia ka pale ʻana i ka oxygen.
Hoʻohana pinepine ʻia ʻo ia e like me ke kiʻi ʻoniʻoni o loko o nā mea hoʻopihapiha hoʻopihapiha hoʻopihapiha, a ʻo ia hoʻi ka mea hoʻohana nui a hoʻohana ʻia i ka kiʻiʻoniʻoni plastik i kēia manawa, ʻoi aku ma mua o 40% o ka hoʻohana ʻana i nā kiʻiʻoniʻoni plastik. Nui nā ʻano kiʻi ʻoniʻoni polyethylene packaging, a ʻokoʻa hoʻi kā lākou hana. Hoʻokahi ka hana ʻana o ke kiʻi ʻoniʻoni hoʻokahi, a ʻo ka hana ʻana o ke kiʻi ʻoniʻoni he mea hoʻohui. ʻO ia ka mea nui o ka ʻeke meaʻai. ʻO ka lua, hoʻohana ʻia ka kiʻiʻoniʻoni polyethylene ma ke kahua o ka ʻenekinia kīwila, e like me geomembrane. Hana ʻo ia ma ke ʻano he wai wai i ka ʻenekinia kīwila a haʻahaʻa loa ka permeability. Hoʻohana ʻia ka kiʻiʻoniʻoni mahiʻai i ka mahiʻai, hiki ke hoʻokaʻawale ʻia i ke kiʻi ʻoniʻoni, mulch film, uhi uhi ʻawaʻawa, kiʻi mālama ʻōmaʻomaʻo a pēlā aku.
Kiʻiʻoniʻoni polyester (PET)
ʻO ka kiʻiʻoniʻoni polyester (PET), i ʻike maʻamau ʻia he polyethylene terephthalate, he plastic engineering thermoplastic. He mea kiʻiʻoniʻoni ia i hana ʻia me nā ʻāpana mānoanoa e ka extrusion a laila hoʻolōʻihi biaxially. Hōʻike ʻia ke kiʻi ʻoniʻoni polyester e nā waiwai mechanical maikaʻi loa, rigidity kiʻekiʻe, paʻakikī a paʻakikī, kūpaʻa puncture, kūpaʻa friction, kiʻekiʻe wela a me ka haʻahaʻa haʻahaʻa haʻahaʻa, kūpaʻa kemika, kūpaʻa ʻaila, paʻa ʻana o ka ea a me ka paʻa ʻana o ka ʻala. ʻO kekahi o nā substrate kiʻiʻoniʻoni paʻa mau, akā ʻaʻole maikaʻi ka pale ʻana o ka corona.
He kiʻekiʻe ke kumu kūʻai o ke kiʻi polyester, a ʻo kona mānoanoa he 0.12 mm. Hoʻohana pinepine ʻia ʻo ia e like me ka mea waho o ka ʻeke meaʻai no ka hoʻopili ʻana, a he paʻi maikaʻi. Eia kekahi, hoʻohana pinepine ʻia ke kiʻi polyester e like me ka paʻi ʻana a me ka hoʻopili ʻana i nā mea hoʻohana e like me ke kiʻi ʻoniʻoni palekana kūlohelohe, kiʻi ʻoniʻoni PET, a me ka kiʻiʻoniʻoni keʻokeʻo milky, a hoʻohana nui ʻia i nā ʻoihana e like me ke aniani fiber reinforced plastics, nā mea kūkulu hale, ka paʻi ʻana, a me ka lāʻau lapaʻau a me ke olakino.
ʻO ke kiʻiʻoniʻoni ʻiʻilika nalon (ONY)
ʻO ka inoa kemika o ka nylon he polyamide (PA). I kēia manawa, nui nā ʻano o ka nylon i hana ʻia ma ka ʻoihana, a ʻo nā ʻano nui i hoʻohana ʻia no ka hana ʻana i nā kiʻiʻoniʻoni ʻo ia ka nylon 6, nylon 12, nylon 66, etc. ka ikaika tensile, a me ka maikaʻi o ka wela, ke kū anuanu, ke kū'ē i kaʻaila a me ke kū'ē'ē. ʻOi aku ka maikaʻi o ka ʻaʻahu a me ke kūpaʻa ʻana i ka puncture, ʻano palupalu, ʻoi aku ka maikaʻi o nā mea pale oxygen, akā maikaʻi ʻole nā mea pale i ka mahu wai, kiʻekiʻe o ka moisture absorption a me ka moisture permeability, maikaʻi ʻole ka wela, kūpono no ka hoʻopili ʻana i nā mea paʻakikī, e like me ka momona. meaʻai, meaʻai i hoʻopaʻa ʻia i ka ʻūhā, meaʻai mahu, etc.
Kiʻiʻoniʻoni Polypropylene (CPP)
ʻAʻole like me ka biaxially oriented polypropylene film (BOPP), ʻo ke kiʻi polypropylene cast (CPP) he kiʻi ʻoniʻoni hoʻoheheʻe ʻole ʻia, ʻaʻole-oriented flat extrusion kiʻi i hana ʻia e ka hoʻoheheʻe ʻana a me ke kinai ʻana. Hōʻike ʻia ia e ka wikiwiki o ka hana ʻana, ka hoʻopuka kiʻekiʻe, ke aniani kiʻiʻoniʻoni maikaʻi, ka aniani, ka mānoanoa like ʻole, a me ke kaulike maikaʻi o nā waiwai like ʻole. No ka mea he kiʻiʻoniʻoni extruded pālahalaha, ʻoi aku ka maʻalahi o ka hana hahai e like me ka paʻi ʻana a me ka hui pū ʻana. Hoʻohana nui ʻia ka CPP i ka hoʻopili ʻana i nā textiles, nā pua, nā meaʻai, a me nā mea e pono ai i kēlā me kēia lā.
Kiʻiʻoniʻoni i uhi ʻia i ka alumini
Loaʻa i ke kiʻi aluminized nā hiʻohiʻona o kahi kiʻiʻoniʻoni plastik a me nā ʻano o kahi metala. ʻO ke kuleana o ka pale alumini ma ka ʻili o ke kiʻiʻoniʻoni ʻo ia ka pale ʻana i ka mālamalama a me ka pale ʻana i ka radiation ultraviolet, ʻaʻole ia e hoʻolōʻihi i ke ola o nā mea i loko, akā hoʻomaikaʻi pū i ka mālamalama o ke kiʻiʻoniʻoni. No laila, hoʻohana nui ʻia ke kiʻi aluminized i loko o ka hoʻopili composite, hoʻohana nui ʻia i ka ʻeke meaʻai maloʻo a me ka puffed e like me nā kuki, a me ka ʻeke waho o kekahi mau lāʻau lapaʻau a me nā mea hoʻonaninani.
Ka manawa hoʻouna: Iulai-19-2023
