Lisebelisoa tsa PVC

Polyvinyl chloride (ka mokhoa o mong: poly(vinyl chloride), colloquial: polyvinyl, kapa vinyl feela; khutsufatso ea: PVC) ke polymer ea maiketsetso ea polasetiki ea boraro lefatšeng ka bophara (kamora polyethylene le polypropylene).Ho hlahisoa lithane tse ka bang limilione tse 40 tsa PVC selemo le selemo.

PVC e tla ka mefuta e 'meli ea motheo: e thata (ka linako tse ling e khutsufatsoa e le RPVC) le ho tenyetseha.Mofuta o thata oa PVC o sebelisoa kahong ea liphaephe le lits'ebetsong tsa profil joalo ka mamati le lifensetere.E boetse e sebelisoa ho etsa libotlolo tsa polasetiki, liphutheloana tseo e seng tsa lijo, maqephe a koahelang lijo le likarete tsa polasetiki (joalo ka likarete tsa banka kapa tsa litho).E ka etsoa hore e be bonolo 'me e be bonolo haholoanyane ka ho eketsoa ha li-plasticizers, tse sebelisoang ka ho fetisisa ke phthalates.Ka foromo ena, e boetse e sebelisoa ho kenya liphaephe tsa metsi, ho kenya lithapo tsa motlakase, letlalo la ho etsisa, fatše, matšoao, lirekoto tsa keramafono, lihlahisoa tse fofang, le lisebelisoa tse ngata moo e nkelang rabara sebaka.Ka k'hothone kapa line, e sebelisoa ho hlahisa seile.

Polyvinyl chloride e hloekileng ke e tšoeu, e brittle solid.Ha e qhibilihe ka har'a joala empa e qhibiliha hanyenyane ho tetrahydrofuran.

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PVC e entsoe ka 1872 ke setsebi sa k'hemistri sa Jeremane Eugen Baumann kamora lipatlisiso le liteko tse telele.Polima e ne e bonahala e le 'mala o mosoeu ka har'a botlolo ea vinyl chloride e neng e siiloe shelofong e sirelelitsoeng khanya ea letsatsi ka libeke tse' nè.Mathoasong a lekholo la bo20 la lilemo, setsebi sa k'hemistri sa Lerussia Ivan Ostromislensky le Fritz Klatte oa k'hamphani ea lik'hemik'hale ea Jeremane Griesheim-Elektron ka bobeli ba ile ba leka ho sebelisa PVC lihlahisoa tsa khoebo, empa mathata a ho sebetsana le polymer e thata, ka linako tse ling e brittle e ile ea sitisa boiteko ba bona.Waldo Semon le BF Goodrich Company ba thehile mokhoa ka 1926 oa ho etsa polasetiki ea PVC ka ho e kopanya le li-additives tse fapaneng, ho kenyelletsa le tšebeliso ea dibutyl phthalate ka 1933.


Nako ea poso: Feb-09-2023