Hoʻohana pinepine ʻia nā ʻiliʻili like ʻole i ke ola o kēlā me kēia lā. He aha nā mea i hana ʻia ai kēia mau ʻiliʻili? He aha nā ʻano hana o kēlā me kēia? Eia kahi hoʻolauna kikoʻī i nā ʻiliʻili plastik i hoʻohana pinepine ʻia i ke ola o kēlā me kēia lā:
ʻO ka ʻili palakiko kahi ʻili i hana ʻia me ka polyvinyl chloride, polyethylene, polypropylene, polystyrene a me nā resins ʻē aʻe, i hoʻohana pinepine ʻia i ka hoʻopili ʻana, ke kūkulu ʻana, a ma ke ʻano he papa uhi, a pēlā aku.
Hiki ke hoʻokaʻawale ʻia ka ʻili plastik i loko
–ʻUʻiʻoniʻoni ʻoihana: ʻuʻiʻoniʻoni puhi ʻia, ʻuʻiʻoniʻoni kalena, ʻuʻiʻoniʻoni kīkoʻo, ʻuʻiʻoniʻoni hoʻolei ʻia, a pēlā aku;
– ʻAila hale mahiʻai, ʻili mulch, a pēlā aku;
–Nā kiʻiʻoniʻoni no ka hoʻopili ʻana (me nā kiʻiʻoniʻoni hui no ka hoʻopili lāʻau lapaʻau, nā kiʻiʻoniʻoni hui no ka hoʻopili meaʻai, a pēlā aku).
Nā pono a me nā hemahema o ka ʻili plastik:
Nā ʻano hana o nā kiʻiʻoniʻoni plastik nui:
ʻO ka ʻoniʻoni Polypropylene i hoʻonohonoho ʻia ma ke ʻano Biaxially (BOPP)
He resin thermoplastic ka Polypropylene i hana ʻia e ka polymerization o propylene. ʻOi aku ka haʻahaʻa o ka mahana hoʻoheheʻe wela o nā mea Copolymer PP (100°C), haʻahaʻa ka transparency, haʻahaʻa ka gloss, a haʻahaʻa ka rigidity, akā he ikaika ko lākou hopena, a piʻi ka ikaika o ka hopena o PP me ka piʻi ʻana o ka nui o ka ethylene. ʻO ka mahana palupalu Vicat o PP he 150°C. Ma muli o ke kiʻekiʻe o ka crystallinity, he maikaʻi loa ka paʻakikī o ka ʻili a me nā waiwai kū'ē i ke kahakaha ʻana. ʻAʻohe pilikia o ka haki ʻana o ke kaiapuni o PP.
ʻO ka kiʻiʻoniʻoni polypropylene Biaxially oriented (BOPP) kahi mea hoʻopili palupalu moakaka i hoʻomohala ʻia i nā makahiki 1960. Hoʻohana ia i kahi laina hana kūikawā e kāwili i nā mea maka polypropylene a me nā mea hoʻohui hana, hoʻoheheʻe a kāwili iā lākou i loko o nā pepa, a laila hoʻolōʻihi iā lākou i loko o nā kiʻiʻoniʻoni. Hoʻohana nui ʻia ia i ka hoʻopili ʻana i ka meaʻai, nā mea ʻono, nā cigarette, ke kī, ka wai, ka waiū, nā lole, a me nā mea ʻē aʻe, a loaʻa iā ia ka inoa o "Packaging Queen". Eia kekahi, hiki ke hoʻopili ʻia i ka hoʻomākaukau ʻana i nā huahana hana waiwai nui e like me nā membrane uila a me nā membrane microporous, no laila ua ākea loa nā manaʻolana hoʻomohala o nā kiʻiʻoniʻoni BOPP.
ʻAʻole wale nā maikaʻi o ka ʻili BOPP o ka haʻahaʻa haʻahaʻa, ke kūpaʻa maikaʻi ʻana i ka pala a me ke kūpaʻa wela maikaʻi o ka resin PP, akā he mau waiwai optical maikaʻi hoʻi, ka ikaika mechanical kiʻekiʻe a me nā kumu waiwai o nā mea maka. Hiki ke hoʻohui ʻia ka ʻili BOPP me nā mea ʻē aʻe me nā waiwai kūikawā e hoʻomaikaʻi hou aku ai a hoʻomaikaʻi paha i ka hana. ʻO nā mea i hoʻohana pinepine ʻia e pili ana i ka ʻili PE, ka ʻili salivating polypropylene (CPP), polyvinylidene chloride (PVDC), ka ʻili alumini, a pēlā aku.
ʻAʻahu Polyethylene Density Haʻahaʻa (LDPE)
ʻO ka kiʻiʻoniʻoni Polyethylene, ʻo ia hoʻi ʻo PE, he mau ʻano o ke kūpaʻa ʻana i ka makū a me ka permeability haʻahaʻa.
ʻO ka polyethylene haʻahaʻa-density (LPDE) kahi resin synthetic i loaʻa ma o ka polymerization radical ethylene ma lalo o ke kaomi kiʻekiʻe, no laila ua kapa ʻia hoʻi ʻo "polyethylene kaomi kiʻekiʻe". ʻO ka LPDE kahi mole lālā me nā lālā o nā lōʻihi like ʻole ma ke kaulahao nui, me kahi 15 a 30 ethyl, butyl a i ʻole nā lālā lōʻihi no 1000 mau ʻātoma kalapona ma ke kaulahao nui. No ka mea, ʻoi aku ka lōʻihi o nā kaulahao lālā lōʻihi a pōkole o ke kaulahao molekala, he haʻahaʻa ka density o ka huahana, palupalu, kū'ē i ka mahana haʻahaʻa, kū'ē maikaʻi i ka hopena, kūpaʻa kemika maikaʻi, a me ke kūpaʻa waikawa (koe wale nō nā waikawa oxidizing ikaika), Alkali, ka palaho paʻakai, he mau waiwai insulation uila maikaʻi. Translucent a glossy, loaʻa iā ia ke kūpaʻa kemika maikaʻi loa, ka sila wela, ke kūpaʻa wai a me ka makū, ke kūpaʻa hau, a hiki ke hoʻolapalapa ʻia. ʻO kona hemahema nui ʻo ia kona pale maikaʻi ʻole i ka oxygen.
Hoʻohana pinepine ʻia ia ma ke ʻano he kiʻiʻoniʻoni papa o loko o nā mea hoʻopili palupalu composite, a ʻo ia hoʻi ka kiʻiʻoniʻoni hoʻopili plastik i hoʻohana nui ʻia a hoʻohana ʻia i kēia manawa, e helu ana ma mua o 40% o ka hoʻohana ʻana i nā kiʻiʻoniʻoni hoʻopili plastik. Nui nā ʻano kiʻiʻoniʻoni hoʻopili polyethylene, a ʻokoʻa hoʻi kā lākou hana. Hoʻokahi ka hana o ka kiʻiʻoniʻoni papa hoʻokahi, a hoʻopiha ka hana o ka kiʻiʻoniʻoni composite. ʻO ia ka mea nui o ka hoʻopili ʻana i ka meaʻai. ʻO ka lua, hoʻohana ʻia ka kiʻiʻoniʻoni polyethylene ma ke kahua o ka ʻenekinia kīwila, e like me ka geomembrane. Hana ia ma ke ʻano he pale wai i ka ʻenekinia kīwila a he haʻahaʻa loa ka permeability. Hoʻohana ʻia ka kiʻiʻoniʻoni mahiʻai i ka mahiʻai, hiki ke hoʻokaʻawale ʻia i ka kiʻiʻoniʻoni hoʻokahe, ka kiʻiʻoniʻoni mulch, ka kiʻiʻoniʻoni uhi ʻawaʻawa, ka kiʻiʻoniʻoni mālama ʻōmaʻomaʻo a pēlā aku.
ʻO ke kiʻiʻoniʻoni polyester (PET)
ʻO ka ʻili polyester (PET), i ʻike nui ʻia ʻo polyethylene terephthalate, he plastic ʻenekinia thermoplastic. He mea ʻili ia i hana ʻia me nā pepa mānoanoa ma o ka extrusion a laila hoʻolōʻihi ʻia biaxially. 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 anuanu kiʻekiʻe a me ka haʻahaʻa, ke kū'ē ʻana i ka kemika, ke kū'ē ʻana i ka aila, ka paʻa ʻana o ka ea a me ka paʻa ʻana o ka ʻala. ʻO kekahi o nā substrates kiʻiʻoniʻoni hui mau loa, akā ʻaʻole maikaʻi ka pale ʻana o ka corona.
He kiʻekiʻe ke kumukūʻai o ka ʻili polyester, a ʻo kona mānoanoa maʻamau he 0.12 mm. Hoʻohana pinepine ʻia ia ma ke ʻano he mea waho o ka ʻōpala meaʻai no ka ʻōpala, a he maikaʻi ka paʻi ʻana. Eia kekahi, hoʻohana pinepine ʻia ka ʻili polyester ma ke ʻano he paʻi a me nā mea hoʻopau ʻōpala e like me ka ʻili palekana kaiapuni, ka ʻili PET, a me ka ʻili keʻokeʻo waiū, a hoʻohana nui ʻia i nā ʻoihana e like me nā plastics i hoʻoikaika ʻia me ke aniani fiber, nā mea kūkulu hale, ka paʻi ʻana, a me nā lāʻau lapaʻau a me ke olakino.
ʻO ka ʻili palakiko Nylon (ONY)
ʻO ka inoa kemika o ka nylon ʻo polyamide (PA). I kēia manawa, nui nā ʻano nylon i hana ʻia i ka ʻoihana, a ʻo nā ʻano nui i hoʻohana ʻia no ka hana ʻana i nā kiʻiʻoniʻoni ʻo nylon 6, nylon 12, nylon 66, a pēlā aku. He kiʻiʻoniʻoni paʻakikī loa ka kiʻiʻoniʻoni Nylon me ka transparency maikaʻi, ka gloss maikaʻi, ka ikaika tensile kiʻekiʻe a me ka ikaika tensile, a me ke kūpaʻa wela maikaʻi, ke kūpaʻa anu, ke kūpaʻa aila a me ke kūpaʻa solvent organic. ʻO ke kūpaʻa maikaʻi loa i ka ʻaʻahu a me ke kūpaʻa puncture, palupalu iki, nā waiwai pale oxygen maikaʻi loa, akā nā waiwai pale maikaʻi ʻole i ka mahu wai, ke komo ʻana o ka makū kiʻekiʻe a me ka permeability makū, ka maikaʻi ʻole o ka salability wela, kūpono no ka hoʻopili ʻana i nā mea paʻakikī, e like me ka meaʻai momona Sexual, nā huahana ʻiʻo, nā meaʻai palai, nā meaʻai i hoʻopaʻa ʻia i ka vacuum, nā meaʻai mahu, a pēlā aku.
ʻO ke kiʻiʻoniʻoni Polypropylene i hoʻolei ʻia (CPP)
ʻAʻole e like me ke kaʻina hana polypropylene oriented biaxially (BOPP), ʻo ke kiʻi polypropylene i hoʻolei ʻia (CPP) he kiʻi extrusion pālahalaha i hoʻolōʻihi ʻole ʻia, ʻaʻole i kuhikuhi ʻia i hana ʻia e ka hoʻoheheʻe ʻana a me ka quenching. Hōʻike ʻia ia e ka wikiwiki o ka hana ʻana, ka hana kiʻekiʻe, ka transparency kiʻiʻoniʻoni maikaʻi, ka ʻōlinolino, ka like ʻana o ka mānoanoa, a me ke kaulike maikaʻi loa o nā waiwai like ʻole. Ma muli o ka kiʻiʻoniʻoni extruded pālahalaha, he mea maʻalahi loa ka hana hahai e like me ka paʻi ʻana a me ka hui ʻana. Hoʻohana nui ʻia ʻo CPP i ka hoʻopili ʻana i nā lole, nā pua, ka meaʻai, a me nā mea pono o kēlā me kēia lā.
ʻO ka ʻili plastik i uhi ʻia me ka alumini
Loaʻa i ka ʻili alumini nā ʻano o ka ʻili plastik a me nā ʻano o ka metala. ʻO ke kuleana o ka uhi alumini ma luna o ka ʻili o ka ʻili, ʻo ia ke pale ʻana i ka mālamalama a pale i ka radiation ultraviolet, ʻaʻole wale ia e hoʻolōʻihi i ke ola o nā mea i loko, akā e hoʻomaikaʻi pū i ka ʻōlinolino o ka ʻili. No laila, hoʻohana nui ʻia ka ʻili alumini i loko o nā ʻōpala hui, hoʻohana nui ʻia i loko o nā ʻōpala meaʻai maloʻo a me nā ʻōpala meaʻai e like me nā biscuits, a me ka ʻōpala waho o kekahi mau lāʻau lapaʻau a me nā mea hoʻonani.
Ka manawa hoʻouna: Iulai-19-2023
