Ma ka hoʻokomo ʻana i kāna monomer copolymerization i loko o ke kaulahao nui o vinyl chloride, loaʻa kahi polymer hou i loaʻa nā loulou monomer ʻelua, ʻo ia ka mea i kapa ʻia he copolymer.ʻO nā ʻano nui a me nā waiwai o nā copolymers o vinyl chloride a me nā monomers ʻē aʻe penei:
(1) vinyl chloride vinyl acetate copolymer: hiki i ka hoʻokomo ʻana i ka monomer vinyl acetate ke pāʻani i ke ʻano o ka plasticizer maʻamau, ʻo ia hoʻi, ka mea i kapa ʻia ʻo "plasticization kūloko", hiki ke pale i ka evaporation, migration, extraction a me nā hemahema ʻē aʻe o nā plasticizers maʻamau. , a hiki ke hoʻemi i ka viscosity heheʻe, hoʻemi i ka mahana hana a hoʻomaikaʻi i ka hana hana.ʻO ka maʻamau, ʻo ka ʻike o ka vinyl acetate i ka copolymer he 3 ~ 14%.
ʻO nā hemahema nui o ka vinyl chloride vinyl acetate copolymer ʻo ka hōʻemi ʻana i ka ikaika tensile, ka wela deformation thermal, ke kūpaʻa ʻana, ke kūpaʻa kemika a me ke kūpaʻa wela.
⑵ vinyl chloride vinylidene chloride copolymer: ʻo ka plasticization, ka wela palupalu, ka solubility a me ka plasticization intramolecular o kēia copolymer he mea like ia me ka vinyl chloride vinyl acetate copolymer.Hōʻike ʻia ia e ka haʻahaʻa wai a me ke kinoea transmittance, kiʻekiʻe solubility i ketone solvents, a me ke kū'ē ʻana i ka dilution o nā mea ʻala, no laila hiki ke hoʻohana pono ʻia i nā uhi.Eia kekahi, hoʻohana ʻia e hana i nā kiʻi ʻoniʻoni.Ma muli o ka maikaʻi ʻole o ka wela a me ke kūpaʻa māmā i hoʻohālikelike ʻia me ka vinyl chloride vinyl acetate copolymer, a me ke kumukūʻai monomer kiʻekiʻe, ʻaʻole i hoʻohana nui ʻia e like me ka vinyl chloride vinyl acetate.
(3) vinyl chloride acrylate copolymer: ʻo ka hopena plasticizing kūloko o kēia copolymer ua like ia me ka vinyl chloride vinyl acetate, me ke kūpaʻa wela maikaʻi.Hiki ke hoʻohana ʻia no ka hana ʻana i nā huahana paʻakikī a palupalu, a hoʻomaikaʻi i ke kaʻina hana, ka hopena a me ke kū anuanu.Hiki ke hoʻohana ʻia no ka uhi ʻana, hoʻopaʻa ʻana, etc.
(4) vinyl chloride maleate copolymer: ʻo ka maʻiʻo maleate i loko o kēia copolymer ma kahi o 15%, a ua like ka hopena plasticizing kūloko me ka vinyl chloride acrylate.Loaʻa iā ia ka processability maikaʻi.He liʻiliʻi ka emi ʻana o nā waiwai kino a me nā mīkini, a ʻoi aku ka kiʻekiʻe o ka pale wela ma mua o nā copolymers maʻamau.
(5) vinyl chloride olefin copolymer: hiki i ka copolymerization o ka ethylene, propylene a me nā monomer olefin ʻē aʻe ke hana i nā resins copolymer me ka maikaʻi o ka fluidity, thermal stability, impact resistance, transparency, heat resistance a pēlā aku.
ʻO ka hoʻololi ʻana i ka hoʻololi ʻana i ka hoʻololi ʻana i ka hoʻololi ʻana i ka hoʻoheheʻe ʻana
ʻO ka polymerization hoʻololi hou ʻana o ka hoʻopili ʻana
ʻO ka hoʻololi ʻana ma ka hoʻokomo ʻana i nā monomers ʻē aʻe i loko o ke kaulahao ʻaoʻao o PVC a i ʻole vinyl chloride kaulahao i loko o ke kaulahao ʻaoʻao o nā polymers heterogeneous i kapa ʻia ʻo graft reactive polymerization.
4. Haʻahaʻa wela polymerization
ʻO ka hoʻololi ʻana i ka hoʻonohonoho ʻana o nā kaulahao ma ke kaulahao nui o PVC a i ʻole ka hoʻololi ʻana i ka hoʻonohonoho ma waena o nā kaulahao PVC ʻo ia ka hoʻololi ʻana i ke ʻano polymerization.Kapa ʻia kēia hoʻololi ʻana i ka polymerization haʻahaʻa haʻahaʻa.
Ka manawa hoʻouna: Iulai-15-2022