Kiʻiʻoniʻoni coextrusion multilayer
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Kaomi i nā FAQHoʻokaʻawale ʻia ke kiʻi ʻoniʻoni hui pū ʻia o Qingdao Advanmatch Packaging i hoʻokaʻawale ʻia i loko.papa kumu, papa hana a me ka papa hoʻopili e like me ka hana o kēlā me kēia papa o ke kiʻi me ka nānā ʻole i ka nui o nā papa.
Papa kumu: ʻO ka maʻamau, ʻo nā ʻāpana o loko a me waho o ka kiʻiʻoniʻoni i hui pū ʻia e loaʻa i nā waiwai kino a me nā ʻano mechanical maikaʻi, ka hoʻoheheʻe ʻana a me ka hana ʻana i nā waiwai a me ka papa hoʻopaʻa wela.He maikaʻi ka hana hoʻopaʻa ʻana i ka wela a me ka hana kuʻi ʻana me ka haʻahaʻa haʻahaʻa.I kēia manawa, loaʻa iā ia ke kākoʻo maikaʻi a me ka hopena paʻa i ka papa hana a me ka hapa kiʻekiʻe loa o ka membrane composite e hoʻoholo ai i ka rigidity holoʻokoʻa o ka membrane composite.ʻO ka mea kumu nui ka PE, PP, EVA, PET a me PS.
Papa hana:ʻO ka papa hana coextrusion o ka pahu kiʻiʻoniʻoni ka hapa nui o ka papa pale, ʻo ia ka waena o ka kiʻiʻoniʻoni multi-layer composite.Hoʻohana nui ia i nā resins pale e like me EVOH, PVDC, PVA, PA, PET, etc. I waena o lākou, ʻo ka mea maʻamau i hoʻohana ʻia i nā mea pale kiʻekiʻe ʻo EVOH a me PVDC, a ʻo ka PA maʻamau a me ka PET loaʻa nā ʻano pale like ʻole, no nā mea pale waena. .
EVOH
ʻO ka ethylene-vinyl alcohol copolymer kahi ʻano mea polymer e hoʻohui i ka hana o ka ethylene polymer a me ka pale kinoea o ka ethylene alcohol polymer.ʻAlohilohi loa a loaʻa ka ʻōlinolino maikaʻi.He pale maikaʻi loa ko EVOH i ke kinoea a me ka ʻaila.ʻO kona ikaika mechanical, hiki ke hoʻololi, hoʻopaʻa i ke kūpaʻa, ke kū anuanu a me ka ikaika o ka ʻili he mea maikaʻi loa a he maikaʻi kāna hana hoʻoponopono.ʻO ka waiwai pale o EVOH pili i ka ʻike o ka ethylene.ʻO nā huahana i hoʻopaʻa ʻia me nā mea EVOH me nā condiments, nā huahana waiu, nā huahana ʻiʻo, nā huahana cheese, etc.
PVDC
ʻO ka polyvinylidene chloride he polymer o ka vinylidene chloride (1,1-dichloroethylene).ʻOi aku ka haʻahaʻa o ka mahana decomposition o ka homopolymer polyvinylidene chloride ma mua o kona wahi hoʻoheheʻe, no laila paʻakikī ke hoʻoheheʻe.No laila, ʻo PVDC ma ke ʻano he mea hoʻopihapiha he copolymer o ka vinylidene chloride a me ka vinyl chloride i loaʻa ka paʻa kino kino maikaʻi, ke kūpaʻa corrosion, ka paʻi maikaʻi a me nā ʻano hoʻopaʻa wela.I ka hoʻomaka ʻana, ua hoʻohana nui ʻia no ka pūʻali koa.Akā ua hoʻomaka ʻia e hoʻohana ʻia ma ke ʻano he kiʻiʻoniʻoni mālama meaʻai i nā makahiki 1950.ʻOi aku ka wikiwiki a me ka mālama mālama hou i hoʻomohala ʻia i ka nui me ka wikiwiki o ka ʻenehana hōʻailona hou a me ka wikiwiki o ke ola o nā poʻe hou, ka hoʻololi ʻana o nā mea kuke microwave a me ka hoʻonui ʻana i ke ola papa o ka meaʻai a me ka lāʻau lapaʻau i hana i ka ʻoi aku ka kaulana o ka hoʻohana ʻana o PVDC.Hiki ke hana ʻia ʻo PVDC i kiʻi ʻoniʻoni lahilahi, no laila e hōʻemi ana i ka nui o nā mea maka a me nā kumukūʻai hoʻopili, ke lanakila nei ia i kēia lā.
Papa hoʻopili
Ma muli o ka maikaʻi ʻole o kekahi mau resins kumu a me nā resins papa hana, pono e kau i kekahi mau ʻāpana adhesive ma waena o kēia mau papa ʻelua e pāʻani i ke ʻano o ke kāpili, i mea e hana ai i kahi kiʻiʻoniʻoni "hoʻohui".Hoʻohana ʻia ka ʻāpana adhesive resin adhesive, maʻamau ka maleic anhydride grafted polyolefin a me ka ethylene-vinyl acetate copolymer (EVA).
ʻO nā hiʻohiʻona kiʻiʻoniʻoni co-extruded multi-layer:
1. Ka waiwai pale kiʻekiʻe: ʻO ka hoʻohana ʻana i ka polymer multilayer ma kahi o ka polymerization monolayer hiki ke hoʻomaikaʻi nui i ka waiwai pale o ke kiʻiʻoniʻoni a hoʻokō i ka hopena pale kiʻekiʻe o ka oxygen, wai, carbon dioxide, ʻala, a me nā mea ʻē aʻe ke koho ʻia ʻo EVOH a me PVDC e like me ʻO nā mea pale, ʻo kā lākou hāʻawi ʻana i ka oxygen a me ka hoʻoili ʻana i ka mahu wai he haʻahaʻa loa.
2. Ka hana ikaika: Ma muli o ke koho ākea o ke kiʻi multilayer i ka hoʻohana ʻana i nā mea, hiki ke koho ʻia nā ʻano resins e like me ka noi ʻana o nā mea pono e hōʻike pono ana i nā hana o nā pae like ʻole, i mea e hoʻonui ai i ka hana o ka co -extrusion kiʻiʻoniʻoni, e like me ka aila kū'ē, moisture kū'ē, kiʻekiʻe wela wela kū'ē kū'ē, haʻahaʻa wela anu anuanu kū'ē.Hiki ke hoʻohana ʻia no ka hoʻopiha piha ʻana, sterile packaging a me ka inflatable packaging.
3. ʻO ke kumu kūʻai haʻahaʻa: Ke hoʻohālikelike ʻia me ka paʻi aniani, ka pahu alumini alumini a me nā ʻeke palaki ʻē aʻe e hiki ke hoʻokō i ka hopena pale like.I ka manawa like, ʻoi aku ka maikaʻi o ke kiʻi co-extruded i ke kumukūʻai.No ka laʻana, no ka hoʻokō ʻana i ka hopena pale like, ʻoi aku ka maikaʻi o ke kiʻi ʻoniʻoni co-extruded ʻehiku-layer i ke kumukūʻai ma mua o ke kiʻi ʻoniʻoni co-extruded ʻelima.Ma muli o kāna hana maʻalahi, hiki ke hoʻemi ʻia ke kumukūʻai o nā huahana kiʻiʻoniʻoni i hana ʻia e 10-20% i hoʻohālikelike ʻia me ke kumukūʻai o nā kiʻi ʻoniʻoni maloʻo a me nā kiʻi ʻoniʻoni ʻē aʻe.
4. Hoʻolālā hoʻolālā maʻalahi: hoʻohana i ka hoʻolālā hoʻolālā like ʻole e hoʻokō i nā koi hōʻoia maikaʻi o nā huahana like ʻole.
