Pehea e pili ai ka PVDC high barrier flexible packaging products?Mahele 1

1、 Ka hana a me ka hoʻohana ʻana o PVDC:
Hoʻohana ʻia ka ʻoihana plastik honua e hoʻohana i ka nui kino o ka permeability e hōʻike i ka ʻokoʻa o ka hana a me nā mea me ka oxygen permeability ma lalo o 10 ua kapa ʻia.mea pale kiʻekiʻe.Ua kapa ʻia ʻo 10 ~ 100 mau mea pale waena.ʻOi aku ma mua o 100 i kapa ʻia he mea pale maʻamau.I kēia manawa, ʻike nā ʻekolumea pale kiʻekiʻei ka honua he PVDC, EVOH a me PAN.ʻO nā mea ʻekolu he copolymers.ʻOi aku ka maikaʻi o ka pale oxygen o EVOH ma mua o ka PVDC a ʻoi aku ka maikaʻi o ka PVDC ma mua o ka PAN;No ka pale mahu wai, ʻoi aku ka maikaʻi o EVOH ma mua o PVDC, a ʻoi aku ka maikaʻi o PVDC ma mua o PAN.Eia nō naʻe, ma lalo o nā kūlana haʻahaʻa kiʻekiʻe, aia ka EVOH molecular structure - OH pūʻulu, he mea maʻalahi loa e hoʻomoʻa i ka makū, a e hoʻemi nui ʻia kāna hana pale.I ka manawa like, ua hoʻemi nui ʻia ka hana pale o ka mea PAN me ka hoʻonui ʻana o ka haʻahaʻa o ke kaiapuni.ʻO ka PVDC ka hana ʻoi loa o ka pale ākeamea paʻi ʻilikai ka honua.

ʻO ka polyvinylidene chloride resin (PVDC) he copolymer me ka vinylidene chloride monomer ma ke ʻano nui.He mea hoʻopili kūpono me ka pale kiʻekiʻe, ka paʻakikī ikaika, ka hoʻohaʻahaʻa wela maikaʻi a me ke kūpaʻa kemika a me ka maikaʻi o ka paʻi ʻana a me nā waiwai hoʻopaʻa wela.Hoʻohana nui ia i ka meaʻai, ka lāʻau lapaʻau, ka pūʻali koa a me nā ʻoihana ʻē aʻe.

ʻO ka hoʻomohala ʻana i nā huahana PVDC me ka ʻenehana ʻenehana kiʻekiʻe he mea nui ia e kaulike i nā kumuwaiwai chlorine i ka ʻoihana chlor-alkali a hoʻomaikaʻi nui i ka ʻoihana a me ka hoʻokūkū.Loaʻa iā PVDC kahi waiwai pale maikaʻi ma ke ʻano he mea hoʻopili.ʻO ka hoʻohana ʻana i ka PVDC e hoʻopili i ka meaʻai hiki ke hoʻolōʻihi i ke ola o ka papa, a i ka manawa like, he hopena pale maikaʻi loa ia i ke kala, ʻala a me ka ʻono o ka meaʻai.ʻO ka PVDC composite packaging he haʻahaʻa haʻahaʻa ka hoʻohana ʻana i nā kumuwaiwai ma mua o ka kiʻiʻoniʻoni PE maʻamau, pepa, lāʻau,alumini pepaa me nā mea hoʻopaʻa lole ʻē aʻe.Ua hōʻemi nui ʻia ka nui o ka ʻōpala ʻōpala a ua hōʻemi ʻia ke kumukūʻai holoʻokoʻa, i mea e hoʻokō ai i ke kumu o ka hōʻemi ʻana i ka pahu.

Hoʻohana nui ʻia ʻo PVDC ma nā ʻāina komohana, e pili ana i ka meaʻai, nā kemika, nā mea hoʻonaninani, nā lāʻau lapaʻau, nā lako a me nā huahana mechanical, a ua ʻike ʻia ʻo ia he "'ōmaʻomaʻo".ʻO ka noi o PVDC e pili ana i ke kūlana ola aupuni.I kēia manawa, ʻo ka hoʻohana makahiki o PVDC ma kahi o 50000 tons ma ʻAmelika & 45000 tons ma ʻEulopa, a me ka huina o 40000 tons ma Asia a me Australia.ʻO ka awelika o ka ulu ʻana o ka mākeke PVDC ma ʻEulopa, ʻAmelika a me Iapana he 10%.Ma ʻAmelika, ʻoi aku ma mua o 15000 tons o PVDC resin i hoʻohana ʻia nohoʻopaʻa ʻumekeo nā ʻāpana nui o ka ʻiʻo hou i kēlā me kēia makahiki, a ʻo ka hoʻohana ʻana i ka uhi ʻana o ka PVDC ma ka pepa he 40% o ka nui o ka hoʻohana ʻana o PVDC.Ma Iapana a me South Korea, ua hoʻohana ʻia ka nui o nā mea hoʻopihapiha PVDC i ka meaʻai, ka lāʻau lapaʻau, nā huahana kemika a me nā mea hoʻopili huahana uila.ʻOi aku ka nui o ka ʻai makahiki o ka resin PVDC ma mua o 10000 tons wale nō no ke kiʻi ʻoniʻoni.