litaba

Chlorinated polyvinyl chloride (CPVC) ke thepa ea polymer e fumanoang ka mor'a chlorination e eketsehileng ea PVC.Lintho tsa 'mele le tsa lik'hemik'hale li fetoha haholo: ka ho eketseha ha chlorine, ho se tloaelehe ha ketane ea limolek'hule ho eketseha' me kristale e fokotseha;polarity ea ketane ea molek'hule ea eketseha, matla a intermolecular a eketseha, mocheso oa mocheso oa mocheso o eketseha haholo, 'me thepa ea mochine e ntlafatsoa.

CPVC e betere ho feta PVC ho hanyetsa boemo ba leholimo, ho hanyetsa botsofali le ho thibela lelakabe.Ka mohlala, ka mor'a chlorination, moeli o fokolang oa oksijene index ea PVC o tla nyoloha ho tloha 45 ~ 49 ho> 70 (e nang le 67% CPVC chlorine), 'me palo ea mosi le carbon e setseng mollong e tla fokotseha haholo.Ts'ebetso ea chlorine e ile ea ama thepa ea lihlahisoa.Boleng ba chlorine ea PVC bo ka fihla ho 73% kamora ho hloekisoa.

Ka kakaretso ka mokhoa oa ho emisa mohato oa metsi, ka mor'a ho kopanya resin ea PVC, ka chlorination, filtration, ho hlatsoa, ​​tlhahiso ea CPVC ea ho se nke lehlakore, mokhoa oa ho omisa o felile, boleng ba khetho ea sefate sa phofo ea PVC ke ea bohlokoa haholo, haholo-holo e amang botsitso ba machining, botsitso ba mocheso) , khetho ea PVC resin thepa e tala hlephileng, letlalo e le tšesaane kamoo ho ka khonehang, sebopeho sa tekanyo e makhethe ea molemo.Kakaretso ea chlorine ke 63% ~ 67%.Ho hanyetsa ha eona boemo ba leholimo, ho hanyetsa kutu, ho hanyetsa botsofali le ho tuka ha mollo ka tšohanyetso ho molemo ho feta resin e tloaelehileng ea PVC.Lintho tsa chlorine lia eketseha, kahoo mocheso oa vica o nolofatsa o ile oa eketseha haholo, 35 ℃ e phahame ho feta PVC resin, mocheso o phahameng ka ho fetisisa o hanyetsanang le mocheso ho fihlela ho 130 ℃, o loketseng liphaephe le lisebelisoa le lipoleiti (tse kang liphaephe tsa metsi a chesang, manonyeletso, mocheso o thibelang mocheso. thepa ea lik'hemik'hale le tanka ea polokelo).

UPVC ke PVC e thata.Boitsebiso bo fetotsoeng bo lokiselitsoe ka ho eketsa palo e itseng ea li-additives tse fetotsoeng motheong oa phofo ea sefate sa PVC."U" ha e na Plasticized (Unplasticized), kahoo phapang e kholo pakeng tsa UPVC le PVC le PVC e bonolo ke hore ha ho na polasetiki e kenyelletsoeng, phofo e ngata ea calcium, matla a phahameng a mechine ea thepa, e loketseng bakeng sa tlhahiso ea li-valve le liphaephe.

CPVC ke chlorinated polyvinyl chloride.E ipapisitse le resin ea PVC, CPVC e eketsa dikahare tsa chlorine linthong tsa PVC ka mokhoa o itseng, ka kakaretso ho tloha ho 63 ho isa ho 69%, e le ho ntlafatsa ho hanyetsa mocheso, asiti, alkali, letsoai le ho bola ha oxidant ea thepa, le ho ntlafatsa mocheso. deformation mocheso le thepa ea mechine ea thepa.

CPVC e eketsa chlorine content ea PVC resin ka mekhoa ea lik'hemik'hale, kahoo theko ea thepa ea CPVC resin e phahame.Qetellong, lisebelisoa tse ling tse fetotsoeng li hloka ho sebelisoa ho ente ea sehlahisoa kapa extrusion, e leng se bakang litšenyehelo tse phahameng tsa thepa e fetotsoeng ea CPVC.Theko ea thekiso ea likaroloana tse fetotsoeng tsa CPVC naheng ea China hangata e kaholimo ho 20,000 / ton.

Ka lebaka la theko e phahameng ea CPVC, ho ke ke ha khoneha hore thepa ena e sebelisoe ka ho pharaletseng joaloka UPVC.Hajoale, CPVC e sebelisoa haholo liphaepheng tse thibelang mollo, liphaephe tse thibelang ho bola ha lik'hemik'hale le lipeipi tsa metsi a chesang a sechaba.