Copolymerization suiga o palasitika PVC

E ala i le faʻaofiina o lona monomer copolymerization i totonu o le filifili autu o le vinyl chloride, o se polymer fou o loʻo i ai ni sootaga monomer e lua e maua, lea e taʻua o le copolymer.O ituaiga autu ma meatotino o copolymers o le vinyl chloride ma isi monomers o loʻo taua i lalo:
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(1) vinyl chloride vinyl acetate copolymer: o le faʻaofiina o le vinyl acetate monomer e mafai ona faia le matafaioi o le plasticizer lautele, o lona uiga, o le mea e taʻua o le "plasticization i totonu", lea e mafai ona aloese mai le faʻasao, femalagaiga, faʻaaogaina ma isi faaletonu o le palasitika lautele. , ma e mafai foi ona faʻaitiitia le viscosity liusuavai, faʻaitiitia le vevela o le gaosiga ma faʻaleleia le faʻatinoga o gaioiga.E masani lava, o le anotusi o le vinyl acetate i le copolymer e 3 ~ 14%.
O le faʻaletonu autu o le vinyl chloride vinyl acetate copolymer o le faʻaitiitia o le malosi faʻamalosi, vevela vevela vevela, faʻaofuofu teteʻe, mautu vailaʻau ma mautu vevela.
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⑵ vinyl chloride vinylidene chloride copolymer: o le plasticization, faamaluluina vevela, solubility ma intramolecular plasticization o lenei copolymer e tutusa lava ma le vinyl chloride vinyl acetate copolymer.O loʻo faʻaalia i le maualalo o le suavai ma le kesi, solubility maualuga i le ketone solvents, ma le tetee atu i le faʻafefeteina o mea manogi, o lea e mafai ai ona faʻaoga lelei i paʻu.E le gata i lea, e faʻaaogaina foi e fai ai ata faʻaitiitia.Ona o le le lelei o le vevela ma le faʻamautuina o le malamalama pe a faʻatusatusa i le vinyl chloride vinyl acetate copolymer, ma le maualuga o le tau o le monomer, e le o faʻaaogaina lautele e pei o le vinyl chloride vinyl acetate.
(3) vinyl chloride acrylate copolymer: o le aafiaga plasticizing i totonu o lenei copolymer e tutusa ma le vinyl chloride vinyl acetate, ma le mautu mafanafana lelei.E mafai ona faʻaaogaina e gaosia ai mea faigata ma vaivai, ma faʻaleleia le gaioiga, faʻalavelave faʻalavelave ma le malulu.E mafai foi ona faʻaaogaina mo le ufiufi, faʻapipiʻi, ma isi.
(4) vinyl chloride maleate copolymer: o le anotusi o maleate i lenei copolymer e tusa ma le 15%, ma le aafiaga plasticizing totonu e tutusa ma le vinyl chloride acrylate.E lelei le fa'agaioiina.O le faʻaitiitia o mea faʻaletino ma masini e laʻititi, ma o le vevela vevela e maualuga atu nai lo copolymers lautele.
(5) vinyl chloride olefin copolymer: copolymerization o le ethylene, propylene ma isi monomers olefin e mafai ona maua resins copolymer ma le suavai lelei, mautu vevela, tetee aafiaga, manino, tetee vevela ma isi.
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Suiga fofo fefiloi gaugau
Gaugau suluga polymerization
O le suiga e ala i le tuʻuina atu o isi monomers i le filifili pito o le PVC poʻo le vinyl chloride filifili i le itu o le filifili o polymers heterogeneous ua taʻua o le graft reactive polymerization.
4. Polymerization maualalo vevela
Suia le faʻatulagaina o filifili filifili i le filifili autu o le PVC poʻo le suia o le faʻatulagaina i le va o filifili PVC o lona uiga o le suia o le auala polymerization.O lenei suiga e taʻua o le polymerization maualalo maualalo.


Taimi meli: Iul-15-2022