Na roto i te whakaurunga o tana kapolymerization monomer ki roto i te mekameka matua o te vinyl chloride, ka whiwhi he waerau hou kei roto e rua nga hononga monomer, e kiia nei ko te copolymer.Ko nga momo matua me nga ahuatanga o nga copolymers o te vinyl chloride me etahi atu monomers e whai ake nei:
(1) vinyl chloride vinyl acetate copolymer: ka taea e te whakaurunga o te vinyl acetate monomer te mahi o te plasticizer whanui, ara, ko te mea e kiia nei ko te "plasticization o roto", ka taea te karo i te whakaetonga, te heke, te tangohanga me etahi atu ngoikoretanga o nga kaitarai whanui. , a ka taea hoki te whakaiti i te rewa rewa, te whakaiti i te pāmahana tukatuka me te whakapai ake i te mahi tukatuka.Ko te tikanga, ko te ihirangi o te acetate vinyl i roto i te copolymer ko 3 ~ 14%.
Ko nga ngoikoretanga matua o te vinyl chloride vinyl acetate copolymer ko te whakahekenga o te kaha o te kaha, te wera o te wera, te aukati kakahu, te pumau matū me te pumau.
⑵ vinyl chloride vinylidene chloride copolymer: he rite tonu te whakamaaramatanga, te whakamahana mahana, te whakarewatanga me te whakakikoruatanga intramolecular o tenei kapolymer ki tera o te kapolymer vinyl chloride vinyl acetate copolymer.Ko te ahua o te iti o te wai me te whakawhiti hau, te wairewa teitei i roto i nga whakarewa ketone, me te aukati ki te waimeha o nga mea kakara, na reira ka taea te whakamahi pai ki nga paninga.I tua atu, ka whakamahia hoki hei hanga kiriata whakaheke.Na te ngoikore o te wera me te maamaatanga o te marama ka whakaritea ki te vinyl chloride vinyl acetate copolymer, me te utu nui o te monomer, kaore i te whakamahia nuitia hei vinyl chloride vinyl acetate.
(3) vinyl chloride acrylate copolymer: he rite te paanga o roto o tenei copolymer ki tera o te vinyl chloride vinyl acetate, me te pai o te waiariki.Ka taea te whakamahi ki te hanga i nga hua pakeke me te ngawari, me te whakapai ake i te mahi, te atete paanga me te aukati makariri.Ka taea hoki te whakamahi mo te paninga, te hono, me era atu.
(4) vinyl pūhaumāota maleate copolymer: te ihirangi o maleate i roto i tenei copolymer ko e pā ana ki 15%, me te pānga plasticizing ā-he rite ki taua o vinyl pūhaumāota acrylate.He pai te whakahaere.He iti te whakahekenga o nga ahuatanga o te tinana me te miihini, a he teitei ake te parenga wera i tera o nga copolymers whanui.
(5) vinyl chloride olefin copolymer: ka taea e te copolymerization o te ethylene, propylene me etahi atu monomers olefin te whakaputa i nga kapia copolymer me te tino pai o te waiariki, te pumau o te waiariki, te awangawanga paanga, te marama, te wera wera me era atu.
Whakarereketanga otinga whakakopa
Te whakakopa i te polymerization tauhohenga
Ko te whakarereketanga ma te whakauru i etahi atu monomers ki te mekameka taha o PVC, vinyl chloride mekameka ranei ki te mekameka taha o nga polymers heterogeneous ka kiia ko te graft reactive polymerization.
4. Te polymerization iti o te pāmahana
Ko te whakarereke i te whakaritenga o nga hononga mekameka i roto i te mekameka matua o te PVC, ko te whakarereke ranei i te whakaritenga i waenga i nga mekameka PVC ko te whakarereke i te tikanga polymerization.Ko tenei whakarereketanga ka kiia ko te polymerization iti-mahana.
Wā tuku: Hūrae-15-2022