ʻO ka Polyvinyl chloride (PVC) he polymer polymerized e ka vinyl chloride monomer (VCM) i ka peroxide, azo compound a me nā mea hoʻomaka ʻē aʻe a i ʻole e like me ka mīkini polymerization radical manuahi ma lalo o ka hana o ka māmā a me ka wela. ʻO Vinyl chloride homopolymer a me vinyl chloride copolymer i hui pū ʻia me ka vinyl chloride resin.
ʻO PVC ka mea i hoʻohana nui ʻia ma ka honua. Hoʻohana nui ʻia ia i nā mea kūkulu hale, nā huahana ʻoihana, nā mea e pono ai i kēlā me kēia lā, ka ʻili papahele, nā tile papahele, nā ʻili artificial, nā paipu, nā uea a me nā kaula, ke kiʻi paʻi kiʻi, nā ʻōmole, nā mea huʻihuʻi, nā mea hoʻopaʻa, nā fibers a pēlā aku.
E like me ka ʻokoʻa o ka noi noi, hiki ke hoʻokaʻawale ʻia ka PVC i: resin PVC kumu nui, kiʻekiʻe kiʻekiʻe o ka polymerization PVC resin a me ka resin PVC i hoʻopili ʻia. Hoʻokumu ʻia ka resin PVC kumu nui e ka polymerization o ka monomer vinyl chloride ma lalo o ka hana a ka mea hoʻomaka; ʻO ke kūlana polymerization kiʻekiʻe ʻo PVC resin e pili ana i ka resin polymerized ma o ka hoʻohui ʻana i ka mea ulu kaulahao i loko o ka vinyl chloride monomer polymerization system; ʻO ka resin PVC crosslinked he resin polymerized ma o ka hoʻohui ʻana i ka mea hana crosslinking i loaʻa ka diene a me ka polyene i loko o ka vinyl chloride monomer polymerization system.
E like me ke ʻano o ka loaʻa ʻana o ka monomer vinyl chloride, hiki ke hoʻokaʻawale ʻia i ke ʻano calcium carbide, ke ʻano ethylene a me ke ʻano monomer i lawe ʻia mai (EDC, VCM) (ma ka maʻamau, ʻo ke ʻano ethylene a me ke ʻano monomer i lawe ʻia e hui pū ʻia me ke ʻano ethylene).
Ka manawa hoʻouna: Mei-07-2022