Vinyl Acetate Monomer (Sinopec VAM)
Hoʻohana mua ʻia ʻo Vinyl acetate a i ʻole vinyl acetate monomer (VAM) ma ke ʻano he monomer i ka hana ʻana o nā mea kemika ʻē aʻe i hoʻohana ʻia i nā noi huahana ʻoihana a me nā mea kūʻai aku.
He aha ka Monomer?
ʻO ka monomer kahi mole e hiki ke hoʻopaʻa ʻia i nā molekole like ʻole e hana i ka polymer.
Hoʻohana ʻia nā polymers e pili ana i ka VAM, me ka vinyl chloride-vinyl acetate copolymer, polyvinyl acetate (PVA) a me ka polyvinyl alcohol (PVOH), i nā ʻano hana like ʻole.
Ke hana ʻia nā polymers me ka hoʻohana ʻana i ka VAM, ua pau loa ka vinyl acetate i hoʻohana ʻia i kā lākou hana ʻana, ʻo ia hoʻi he koena wale nō inā loaʻa ka VAM ponoʻī i kēia mau huahana.
● Adhesives and Glues: He mau mea hoʻopili ikaika ko PVA no nā ʻano mea like ʻole, e like me ka pepa, ka lāʻau, nā kiʻi ʻoniʻoni a me nā metala, a he mea nui ia i ka lāʻau kelu, ke keʻokeʻo keʻokeʻo, ke kamana a me ke kāpili kula.Hoʻohana ʻia ʻo PVOH no nā kiʻi ʻoniʻoni hoʻopili paʻa;hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke maʻalahi i ka wā e ulu ana.
● Nā Pena: Hoʻohana ʻia nā polymers i hoʻokumu ʻia i ka VAM i ka hana ʻana i nā pena latex o loko e like me ka mea e hoʻopili ai i nā mea āpau a me ka luster o ka pau ʻana.
● Textiles: Hoʻohana ʻia ʻo PVOH i ka hana lole no ka nui o ka warp, kahi hana e uhi ʻia ai nā textiles me kahi kiʻiʻoniʻoni pale e hōʻemi i ka haki ʻana i ka wā ulana.
● Hoʻopili: Hoʻohana ʻia ʻo PVOH i nā uhi kiʻi kiʻi.Hoʻohana ʻia ia i ka hana ʻana i ka polyvinyl butyral (PVB), kahi resin i loaʻa i ka adhesion ikaika, māmā a me nā waiwai paʻakikī.Hoʻohana nui ʻia ka PVB i ke aniani laminated no nā kaʻa a me nā hale kalepa;Hāʻawi ia i kahi interlayer pale a maopopo i hoʻopaʻa ʻia ma waena o ʻelua mau aniani aniani.Hiki ke hoʻohana ʻia i loko o nā uhi a me nā inika.Hoʻohana ʻia nā derivatives e pili ana i ka VAM ma ke ʻano he uhi i nā kiʻiʻoniʻoni plastik no ka hoʻopili ʻana i nā meaʻai.
● Mea hoʻololi i ka meaʻai starch: hiki ke hoʻohana ʻia ka VAM ma ke ʻano he mea hoʻohui i nā mea hoʻololi starch meaʻai.Hoʻohana mau ʻia ka mākiko meaʻai i hoʻololi ʻia ma ke ʻano he mea hoʻohui meaʻai no nā kumu like i hoʻohana ʻia ai nā starches maʻamau: e mānoanoa, hoʻopaʻa a emulsify i nā huahana meaʻai e like me ka soup, sauces a me ka gravy.
● Nā mea mānoanoa: Hoʻohana ʻia ʻo PVOH ma ke ʻano he mea mānoanoa i kekahi mau wai.Hiki ke hoʻohui ʻia nā mea mānoanoa i kekahi mau wai e kōkua i ka mālama ʻana i ka dysphagia, a i ʻole ka ʻai ʻana i ka pilikia, a no ke kōkua ʻana i nā mea i loko o nā mea inu ʻoluʻolu e hoʻomau like.
● Insulation: Hoʻopauʻia ka VAM i ka hanaʻana i ka ethylene vinyl acetate (EVA), i hoʻohanaʻia i ka uea a me ke kaula kelepona ma muli o kona maʻalahi, ka lōʻihi a me kona mau mea pale ahi.
● Barrier Resin: ʻO ka hoʻohana nui ʻana i ka VAM ʻo ia ka hana ʻana i ka ethylene vinyl alcohol (EVOH), i hoʻohana ʻia ma ke ʻano he pale pale i ka ʻeke meaʻai, nā ʻōmole plastik, a me nā pahu ʻaila, a me nā polymers engineering.ʻO nā resins pale he mau plastic i hoʻohana ʻia i loko o ka ʻeke meaʻai e kōkua i ka pale ʻana i ke kinoea, ka mahu a i ʻole ke komo ʻana o ka wai a kōkua i ka mālama ʻana i ka meaʻai.
ʻO ka pahu kahakai VAM aia ma Jiangyin, Nanjing a me Jingjiang ma mua o 10000cbms. Ke hilinaʻi nei, ua hoʻokumu ʻia nā pahu kahakai e hana pili loa me kāna mau hoa pili honua a hāʻawi i ka lawelawe maikaʻi loa i kāna mau mea kūʻai honua.
