Iimveliso

I-Polyvinyl chloride (i-Polyvinyl chloride), isifinyezo sesiNgesi se-PVC, i-polymer ye-vinyl chloride monomer (VCM) eyenziwe nge-peroxide, i-azo compound kunye nabanye abaqalisi okanye phantsi kwesenzo sokukhanya kunye nobushushu ngokwendlela ye-polymerization ye-radical yamahhala..IVinyl chloride homopolymers kunye ne-vinyl chloride copolymers ngokudibeneyo zibizwa ngokuba yi-vinyl chloride resins.

I-PVC ngumgubo omhlophe kunye nesakhiwo se-amorphous kunye neqondo elincinci le-branching.Iqondo lobushushu beglasi liyi-77~90°C, kwaye iqala ukubola malunga ne-170°C.Ukuzinza ekukhanyeni kunye nobushushu kubi.Ngaphezulu kwe-100 ° C okanye emva kokuvela kwelanga ixesha elide, iyakubola ukuvelisa i-hydrogen chloride, kunye nokubola okuzenzekelayo kwe-autocatalytic, okubangela ukuguquka kwebala kunye nokuhla ngokukhawuleza kwiipropati zomzimba kunye nezomatshini.Kwizicelo ezisebenzayo, i-stabilizers kufuneka yongezwe ukuphucula ukuzinza kubushushu nokukhanya.

Ubunzima bemolekyuli yePVC eveliswe kwimizi-mveliso ngokuqhelekileyo ikuluhlu lwe-50,000 ukuya kwi-110,000.Inepolydispersity enkulu.Ubunzima bemolekyuli buyanda ngokuncipha kobushushu bepolymerization., i-160 ~ 180 ℃ yaqala ukuguquka ibe yimo yokuqukuqela kwe-viscous;iimpawu zoomatshini ezilungileyo, amandla okuqina amalunga ne-60MPa, amandla empembelelo ye-5 ~ 10kJ/m²;iimpawu ezibalaseleyo ze-dielectric.

I-PVC yayikhe yaba yeyona plastiki inkulu yenjongo jikelele emhlabeni, kwaye isetyenziswa kakhulu.Isetyenziswa ngokubanzi kwizinto zokwakha, iimveliso zoshishino, iimfuno zemihla ngemihla, isikhumba somgangatho, iithayile zomgangatho, isikhumba sokwenziwa, imibhobho, iingcingo kunye neentambo, iifilimu zokupakisha, iibhotile, izinto ze-foam, izinto zokutywina, iifayili, njl.