ʻO ka Vinyl acetate (VAC) he mea koʻikoʻi koʻikoʻi kemika me ka molecular formula o C4H6O2, i ʻike ʻia ʻo vinyl acetate a me vinyl acetate.Hoʻohana nui ʻia ʻo Vinyl acetate i ka hana ʻana i ka polyvinyl alcohol, ethylene-vinyl acetate copolymer (EVA resin), ethylene-vinyl alcohol copolymer (EVOH resin), vinyl acetate-vinyl chloride copolymer (vinyl chloride resin), keʻokeʻo latex, acrylic fiber a nā huahana ʻē aʻe.Hoʻohana nui ʻia ia ma nā ʻano o ka fiber synthetic, coating, slurry, film, hoʻoponopono ʻili, hoʻomaikaʻi ʻana i ka lepo, a he ākea ākea o ka hoʻomohala ʻana a me ka hoʻohana ʻana.ʻO nā ala kaʻina hana o ka vinyl acetate e komo pū me ke ʻano carbide acetylene, ke ʻano acetylene kūlohelohe a me ke ʻano ethylene petroleum.Hoʻohana nui ʻia ke ʻano carbide acetylene ma Kina, a ʻo ka hiki ke hana o ke ʻano carbide acetylene e hiki i 62% i 2020.
I nā makahiki i hala iho nei, ua hōʻike ʻia ke koi o ka mākeke no ka vinyl acetate ma Kina i ka piʻi nui.Wahi a nā helu helu o China Chemical Fiber Industry Association, i ka makahiki 2016, ʻo ka ʻai ʻana o ka vinyl acetate ma Kina he 1.94 miliona tons, a ua hoʻonui ʻia i 2.33 miliona tons i ka makahiki 2019. Hoʻopilikia ʻia e ka COVID-19 i ka hapa mua o 2020, ka He haʻahaʻa ka hana o nā ʻoihana o lalo, e alakaʻi ana i kahi emi liʻiliʻi o ka ʻai ʻana o ka vinyl acetate i ka 2.16 miliona tons;Me ka hoʻokūpaʻa ʻana o ke kūlana maʻi maʻi i ka hapa ʻelua o ka makahiki a me ka hoʻihoʻi wikiwiki ʻana o ka hoʻokele waiwai, ua hoʻihoʻi koke ke koi no ka vinyl acetate mai ka hapa lua o 2020 a i ka hapa mua o 2021, ua piʻi nui ke kumukūʻai mākeke, a me ka hoʻihoʻi hou ka ʻoihana.
ʻO ke ʻano koi o ka vinyl acetate ma Kina he paʻa, me ka polyvinyl alcohol, polyvinyl acetate, VAE lotion a me ka resin EVA e like me nā huahana nui.I ka makahiki 2020, hiki i ka 65% ka nui o ka waiʻona polyvinyl i loko o ka hale hoʻohana o ka vinyl acetate, a ʻo ka huina o ka polyvinyl acetate, VAE lotion a me EAV resin he 31%.
I kēia manawa, ʻo Kina ka mana nui loa o ka vinyl acetate ma ka honua.I ka makahiki 2020, e hiki aku ana ka nui o ka vinyl acetate o Kina i 2.65 miliona tons, e helu ana ma kahi o 40% o ka nui o ka honua.I kēia mau makahiki i hala iho nei, ua hoʻoneʻe mālie ʻia ka mana hope o ka ʻoihana vinyl acetate Kina, a ua hoʻohui ʻia ka mana kiʻekiʻe e hoʻopiha i ka hakahaka o ka mākeke.Me ka hoʻomau mau ʻana o ka hoʻolako ʻana i ka ʻoihana, ua hōʻike ka hana ʻana o ka vinyl acetate o Kina i kahi ulu ulu holoʻokoʻa.Wahi a nā helu helu o ka China Chemical Fiber Industry Association, ua hoʻonui ʻia ka hana vinyl acetate home mai 1.91 miliona tons ma 2016 a i 2.28 miliona tons ma 2019, me ka nui o ka ulu ʻana o ka makahiki he 5.98%;I ka makahiki 2020, ma muli o ke kumukūʻai aila haʻahaʻa haʻahaʻa, ua hoʻemi ʻia ke kumu kūʻai o ka ʻaila ethylene o waho, ua hoʻonui ʻia ka lawe ʻana mai o ka vinyl acetate ma Kina, a ua hoʻemi ʻia ka hana home o ka vinyl acetate i 1.99 miliona tons;Mai ka hapalua ʻelua o 2020, me ka hoʻihoʻi ʻana i ka hoʻokele waiwai honua a me ka piʻi ʻana o nā kumukūʻai aila honua, ua mahana ka hana ʻana o ka ʻoihana vinyl acetate home.