izindaba

I-Chlorinated polyvinyl chloride (CPVC) iyimpahla ye-polymer etholwe ngemva kokucwenga okwengeziwe kwe-PVC.Izakhiwo zomzimba namakhemikhali zishintsha kakhulu: ngokwanda kokuqukethwe kwe-chlorine, ukungahambi kahle kweketango lamangqamuzana kuyanda futhi i-crystallinity iyancipha;i-polarity ye-molecular chain iyanda, amandla e-intermolecular ayanda, izinga lokushisa lokushisa elishisayo likhuphuka kakhulu, futhi izakhiwo zemishini ziyathuthukiswa.

I-CPVC ingcono kakhulu kune-PVC ekumelaneni nesimo sezulu, ukumelana nokuguga kanye ne-flame retardant.Isibonelo, ngemva kokufakwa kwe-chlorine, umkhawulo wenkomba ye-oxygen ye-PVC izokhuphuka isuka ku-45~49 iye ku->70 (equkethe i-67% CPVC chlorine), futhi inani lentuthu ne-carbon esele elangabini lizoncishiswa kakhulu.Inqubo ye-chlorine ithinte izakhiwo zemikhiqizo.Okuqukethwe kwe-chlorine ku-PVC kungaba kufika ku-73% ngemva kokucwiliswa kwe-chlorine.

Ngokuvamile ngenqubo yokumiswa kwesigaba samanzi, ngemva kokuxuba inhlaka ye-PVC, ngokufaka i-chlorination, ukuhlunga, ukugeza, ukukhiqizwa kwe-CPVC yokungathathi hlangothi, inqubo yokomisa iphelile, ikhwalithi yokukhethwa kwesihlahla se-PVC powder kubaluleke kakhulu, ikakhulukazi okuthinta ukuzinza kwemishini, ukuzinza okushisayo) , ukukhethwa PVC resin impahla eluhlaza okuxekethile, isikhumba njengoba mncane ngangokunokwenzeka, isakhiwo of the degree Lihle lokuhle.Okuqukethwe kwe-chlorine okuvamile kungu-63% ~ 67%.Ukumelana nesimo sezulu, ukumelana nokugqwala, ukumelana nokuguga kanye nokushiswa okuzenzakalelayo kwe-flame retardant kungcono kakhulu kunenhlaka ye-PVC evamile.Okuqukethwe kwe-chlorine kuyanda, ngakho izinga lokushisa lephuzu lokuthambisa le-vica lenyuke kakhulu, 35 ℃ liphakeme kuneresin ye-PVC, izinga lokushisa eliphakeme kakhulu elimelana nokushisa lifinyelela ku-130 ℃, lilungele amapayipi ukumelana nokushisa nokufakwa namapuleti (njengamapayipi amanzi ashisayo, amalunga, ukumelana nokushisa. izinto zamakhemikhali kanye nethangi lokugcina).

I-UPVC iyi-PVC eqinile.Impahla eguquliwe ilungiswa ngokungeza inani elithile lezithasiselo eziguquliwe ngesisekelo sempushana yesihlahla se-PVC."U" i-Unplasticized (I-Unplasticized), ngakho-ke umehluko omkhulu phakathi kwe-UPVC ne-PVC ne-PVC ethambile yukuthi ayikho i-plasticizer eyengeziwe, i-calcium powder eyengeziwe, amandla aphezulu omshini wezinto ezibonakalayo, ezifanele ukukhiqizwa kwama-valve namapayipi.

I-CPVC iyi-chlorinated polyvinyl chloride.Ngokusekelwe ku-PVC resin, i-CPVC inyusa okuqukethwe kwe-chlorine ezintweni ze-PVC ngenqubo ethile, ngokuvamile esukela ku-63 kuya ku-69%, ukuze kuthuthukiswe ukumelana nokushisa, i-asidi, i-alkali, usawoti kanye nokugqwala kwe-oxidant, futhi kuthuthukiswe ukushisa. lokushisa deformation kanye izakhiwo mechanical of the material.

I-CPVC inyusa okuqukethwe kwe-chlorine ye-PVC resin ngezindlela zamakhemikhali, ngakho-ke izindleko ezibonakalayo ze-CPVC resin ziphezulu.Esigabeni sakamuva, izinto ezithile eziguquliwe zidinga ukusetshenziselwa umjovo womkhiqizo noma ukukhishwa, okuholela ezindlekweni eziphezulu zezinto eziguquliwe ze-CPVC.Intengo yokuthengisa yezinhlayiya eziguquliwe ze-CPVC e-China ngokuvamile ingaphezulu kuka-20,000 / ton.

Ngenxa yenani eliphezulu le-CPVC, akunakwenzeka ukuthi le nto isetshenziswe kabanzi njenge-UPVC.Njengamanje, i-CPVC isetshenziswa kakhulu kumapayipi okulwa nomlilo, amapayipi amelana nokugqwala kwamakhemikhali namapayipi amanzi ashisayo.