I-PVC SG-5 yombhobho,
I-PVC yokuvelisa umbhobho, PVC SG-5 intlaka,

I-resin ye-Sg-5 eneqondo eliphantsi le-polymerization kufuneka ikhethwe kwimveliso ye-tube enzima.Iqondo eliphezulu lepolymerization, iimpawu zomzimba kunye noomatshini kunye nokumelana nobushushu
Okukhona iipropathi zingcono, kodwa ulwelo olulambathayo lwe-resin luzisa ubunzima obuthile ekusetyenzweni, ngoko ke i-viscosity iqhelekile (1).7 ~ 1. 8) x 10-3 pa
• I-SG-5 resin ye-S ifanelekile.Umbhobho oqinileyo ngokuqhelekileyo usebenzisa isizinzisi selothe, uzinzo lwaso oluhle lwe-thermal, olusetyenziswa ngokuqhelekileyo ulothe olusisiseko oluthathu, kodwa lona
Ngokuqhelekileyo isetyenziswa kunye neesepha zelothe kunye ne-barium ene-lubricity elungileyo.Ukukhethwa kunye nokusetyenziswa kwezithambiso kubaluleke kakhulu ekusebenzeni kombhobho oqinileyo.
Zombini i-lubrication yangaphakathi kunye ne-lubrication yangaphandle kufuneka ithathelwe ingqalelo ukunciphisa amandla e-intermolecular, ukwenzela ukuba i-viscosity enyibilikayo ingancitshiswa ukwenza, kunye nokuthintela ukunyibilika.
Namathela kwintsimbi eshushu ukunika umphezulu oqaqambileyo.Isepha yesinyithi isetyenziselwa ukuthambisa kwangaphakathi, kwaye i-wax enendawo yokunyibilika ephantsi isetyenziselwa ukuthambisa kwangaphandle.Inkosi yokugcwaliswa
Ukusebenzisa i-calcium carbonate kunye ne-barium (umgubo we-barite), i-calcium carbonate yenza ukusebenza komphezulu wombhobho kakuhle, i-barium inokuphucula ukubumba, ukuze umbhobho ube lula ukubumba, ezimbini.
Iindleko zinokuncitshiswa, kodwa kuninzi kuya kuchaphazela ukusebenza kombhobho, umbhobho woxinzelelo kunye nombhobho oxhathisa ukubola bekungcono ukuba ungongezi okanye wongeze umhluzi omncinci.

Yintoni imibhobho yePVC kunye neCPVC?

Imibhobho yePVC

Yaphuhliswa ngeminyaka yee-1930s, imibhobho ye-PVC (i-polyvinyl chloride) ibe ngumgangatho wemibhobho kamasipala neyemizi-mveliso kwihlabathi liphela.E-US, iikota ezintathu zazo zonke izindlu zisebenzisa iPVC.Ukususela ngo-1950, iye yaba yinto eqhelekileyo yokutshintshwa kwemibhobho yesinyithi

I-PVC yenziwa kusetyenziswa enye yeenkqubo ezintathu zepolymerization: ukumiswa kwepolymerization, i-emulsion polymerization, okanye i-polymerization eninzi.Uninzi lwePVC lwenziwa ngokumiswa kwepolymerization.

Kubalulekile ukuqaphela ukuba imibhobho ye-PVC iza kwiintlobo ezimbini: eqinile kwaye ayinayo iplastiki.Ifomu eqinileyo kusenokwenzeka ukuba yeyokuqala ethi qatha engqondweni—cinga ngamanzi aselwayo, imibhobho yamanzi amdaka, ilindle, kunye nezolimo.Ifom engafakwanga iplastiki iguquguqukayo, ekulungele ukusetyenziswa kwizicelo ezifana ne-tubing yonyango kunye ne-insulation kwiingcingo zombane.

Ezinye iingenelo PVC umbhobho ziquka amandla ayo, ukuqina eliphezulu, ixabiso eliphantsi, ufakelo lula, kunye nokumelana umhlwa kunye nomhlwa.

Imibhobho yeCPVC

I-CPVC ngokusisiseko yiPVC eye yaklorinithiwe.Inkqubo ye-chlorination ivumela i-CPVC ukuba imelane nokushisa okuphezulu-ukuya kwi-200 ° F-kwaye iphucula ukuxhathisa umlilo kunye nokubola.Ngenxa yokumelana nobushushu obuphezulu, uninzi lweekhowudi zokwakha zifuna imibhobho yeCPVC kwizicelo zamanzi ashushu, nangona ingasetyenziselwa zombini amanzi ashushu nabandayo.Ukongezelela, i-CPVC ifakwe ngokubanzi ekusebenziseni iinkqubo zokutshiza umlilo.

Uluhlu lweenzuzo zeCPVC zongeza.Okokuqala, ukuxhathisa kweekhemikhali kunye nobushushu kuyenza yomelele ngokumangalisayo kwaye iqinisekisa ubomi obude.

Ngenxa yokukwazi ukumelana nobushushu obuphezulu kunye noluhlu olubanzi lwezicelo zorhwebo kunye nezoshishino, i-CPVC ifika kwixabiso eliphezulu kunePVC.

Nguwuphi umahluko phakathi kwemibhobho yePVC kunye neCPVC?

Umahluko omkhulu phakathi kwePVC kunye neCPVC kukukwazi kwabo ukumelana nobushushu.Njengoko kukhankanyiwe ngaphambili, umbhobho we-CPVC unokumelana ne-200 ° F, ngelixa umbhobho wePVC unokunyamezela ukuya kwi-140 ° F.Ukuba uhamba ngaphezu kwaloo maqondo okushisa, zombini ziya kuqala ukuthamba, oku kunokubangela ukuba amajoyina abe buthathaka kwaye imibhobho ingaphumeleli.Ngenxa yoko, iiplumbers ezininzi ziya kuncoma ukuba usebenzise i-CPVC kwimizila yamanzi ashushu kunye ne-PVC kwimigca yamanzi abandayo.

Nangona i-PVC ineenzuzo ezininzi, i-CPVC inokuguquguquka okukhulu, kwaye ifumaneka kuzo zombini ubungakanani bombhobho obizwa ngokuba yi-NPS kunye nobukhulu betyhubhu yobhedu (CTS).Ngokwahlukileyo, iPVC ifumaneka kuphela kwinkqubo yeNPS.Yomibini imibhobho ifumaneka kwi-10 ft kunye ne-20 ft ubude.

Ngokubhekiselele kwinkangeleko, imibhobho yePVC imhlophe okanye ingwevu emnyama ngombala, kwaye imibhobho yeCPVC ihlala imhlophe, ingwevu, okanye ityheli.Ukuba kukho nawuphi na umbuzo, bobabini baya kuba nenkcazo yabo yobugcisa eprintwe ecaleni.Ekubeni ukubunjwa kweekhemikhali kuyahluka phakathi kwezi zibini, i-samente ye-solvent kunye ne-agent edibeneyo akufanele isetyenziswe ngokungafaniyo.

Ziziphi izinto ezifanayo phakathi kwemibhobho yePVC kunye neCPVC?

Xa kuziwa kwizinto ezifanayo zobugcisa kunye nomzimba, zombini i-PVC kunye ne-CPVC inoluhlu olunomdla lweenzuzo.Ngomnye, iipropati zombini iibhobho zivumela ukuba zixhathise ukubola kunye nokuthotywa kweekhemikhali.Okwesibini, zombini zikhuselekile ukusebenzisa amanzi okusela xa i-ANSI / NSF 61 iqinisekisiwe.Zombini ziza kwiShedyuli ye-40 kunye neShedyuli ye-80 ubukhulu, kwaye ziyafumaneka kwisiphelo esicacileyo kunye nesiphelo sentsimbi.Ukongeza, iShedyuli ye-40 yePVS ingena kwiKlasi ye-125 yokufakelwa.

Njengebhonasi eyongeziweyo kwinkqubo yabo yofakelo olula, zombini zixhathisa ngokugqithisileyo kwaye zomelele, zivumela ubomi obuyiminyaka engamashumi amahlanu ukuya kwamashumi asixhenxe.Kwaye ngokungafaniyo nobhedu, ixabiso lemibhobho ye-PVC kunye ne-CPVC ayixhomekeke kwixabiso lemarike.

I-PVC resin inokucutshungulwa kwiimveliso ezahlukeneyo zeplastiki.Inokwahlulwa ibe ziimveliso ezithambileyo nezinzima ngokwesicelo sayo.Ikakhulu isetyenziselwa ukuvelisa amashiti akhanyayo, izifakelo zemibhobho, amakhadi egolide, izixhobo zotofelo-gazi, iityhubhu ezithambileyo neziqinileyo, iipleyiti, iingcango neefestile.Iiprofayili, iifilimu, izinto zokufakelwa kombane, iibhatyi zentambo, utofelo-gazi, njl.

Imfuno yePVC iqhutywa zimveliso zoKwakha, ezoLimo, zokuPakisha kunye neCandelo labaThengi.Kwimarike yasekhaya iPVC isetyenziselwa ukwenza izinto eziqinileyo nezithambileyo ezigqityiweyo.Ngokumalunga ne-55% yesabelo semarike ibanjwe yiPVC Pipes & Fittings segment yodwa, amanye amacandelo aquka iFilimu & Sheet, iCable Compound, i-Flexible hose, iZihlangu, iProfayili, i-Flooring kunye neBhodi yeFoam.Kwimarike yasekhaya yePVC, i-resin isetyenziselwa ukwenza imibhobho yePVC.Ngokumalunga ne-55% yokusetyenziswa kwe-resin kweli candelo lodwa.Amanye amacandelo abandakanya ufele, izihlangu, amashiti aqinileyo nathambileyo, ithumbu legadi, iifestile neengcango njl. njl.