Izinzuzo zamapayipi e-PVC
1. Ukuthuthwa: Impahla ye-UPVC inobunzima obuthile obuyingxenye eyodwa kweshumi kuphela yensimbi ecijile, okwenza kungabizi kakhulu ukuyithumela nokuyifaka.
2. I-UPVC inokumelana ne-asidi ephezulu ne-alkali, ngaphandle kwama-asidi aqinile nama-alkali eduze nendawo yokugcwala noma ama-oxidizing aqinile ekugxiliseni okukhulu.
3. Okungaqhubi: Ngenxa yokuthi okubalulekile kwe-UPVC akubizi futhi akugqwali lapho kuvezwe ku-current noma electrolysis, akukho ukucubungula okwengeziwe okudingekayo.
4. Akukho ukukhathazeka mayelana nokuvikela umlilo ngoba awukwazi ukushisa noma ukukhuthaza ukuvutha.
5. Ukufakwa kulula futhi kungabizi ngenxa yokusetshenziswa kokunamathela kwe-PVC, okubonise ukuthi kunokwethenjelwa futhi kuphephile, kulula ukuyisebenzisa, futhi akubizi. Ukusika nokuxhuma nakho kuqondile.
6. Ukumelana nesimo sezulu esihle kakhulu nokumelana nokugqwala kwebhaktheriya nesikhunta kwenza noma yini iqine.
7. Ukumelana okuncane nezinga lokugeleza okuphezulu: udonga lwangaphakathi olubushelelezi lunciphisa ukulahlekelwa kwe-fluidity, luvimbela imfucumfucu ukuthi inganamatheli odongeni lwamapayipi abushelelezi, futhi yenza ukugcinwa kube lula futhi kungabizi.

Ipulasitiki akuyona i-PVC.
I-PVC iyipulasitiki enemisebenzi eminingi engase isetshenziselwe izinto ezihlukahlukene, okuhlanganisa impahla evamile nezindawo zokwakha.
Esikhathini esedlule, i-PVC kwakuyipulasitiki esetshenziswa kakhulu emhlabeni futhi yayisetshenziswa ngezindlela ezihlukahlukene. Isetshenziswa kakhulu ezintweni zokwakha, izimpahla zezimboni, izidingo zansuku zonke, isikhumba saphansi, amathayela aphansi, isikhumba sokwenziwa, amapayipi, izintambo, nezintambo, amafilimu okupakisha, amabhodlela, imicu, izinto ezigwebuzelayo, nezinto zokuvala, phakathi kwezinye izinto.

I-World Health Organization's International Agency for Research on Cancer yaqala yahlanganisa uhlu lwamagciwane ngo-Okthoba 27, 2017, kanti i-polyvinyl chloride yayingenye yezinhlobo ezintathu ze-carcinogens kulolo hlu.
I-amorphous polymer enezinsalela ze-crystalline structure, i-polyvinyl chloride iyi-polymer eshintsha i-athomu ye-chlorine eyodwa esikhundleni se-athomu ye-hydrogen ku-polyethylene. Lo mbhalo uhlelwe kanje: n [-CH2-CHCl] Iningi lama-monomers e-VCM ahlanganiswe ekucushweni kwekhanda kuya komsila ukuze akhe i-polymer yomugqa eyaziwa ngokuthi i-PVC. Wonke ama-athomu ekhabhoni ahlanganiswa ndawonye ngamabhondi futhi ahlelwa ngephethini emazombezombe. Yonke i-athomu yekhabhoni ine-sp3 hybrid.

Iketango le-PVC lamangqamuzana linesakhiwo esifushane esijwayelekile se-sydiotactic. I-sydiotacticity iyakhuphuka njengoba izinga lokushisa le-polymerization lehla. Kunezakhiwo ezingazinzile ezihlanganisa ukwakheka kwekhanda kuya ekhanda, iketango elihlanganisiwe, isibopho esiphindwe kabili, i-Allyl chloride, kanye ne-chlorine ephakeme esakhiweni se-polyvinyl chloride macromolecular, okuholela ekushiyekeni okufana nokuphikiswa okuphansi kwe-thermal deformation kanye nokumelana nokuguga. Amaphutha anjalo angalungiswa ngemuva kokubonakala sengathi axhumene.

Indlela yokuxhuma ye-PVC:
1. I-glue ethize isetshenziselwa ukujoyina ukufakwa kwamapayipi e-PVC; i-adhesive kufanele inyakaziswe ngaphambi kokusetshenziswa.
2. Ingxenye yesokhethi kanye nepayipi le-PVC kudinga ukuhlanzwa. Isikhala esincane esikhona phakathi kwamasokhethi, kufanele kube bushelelezi ubuso bamalunga. Bese, ngokulinganayo shayela ingcina kusokhethi futhi kabili ukuxubha ingcina ingaphandle isokhethi ngayinye. Imizuzwana engu-40 ngemva kokumisa, faka Beka i-glue kude futhi unake ukuthi isikhathi sokumisa kufanele senyuswe noma sehliswe ngokuhambisana nesimo sezulu.
3. Ipayipi kufanele ligcwaliswe ngemuva emahoreni angama-24 ngemuva kokuxhuma okomile, ipayipi kufanele lifakwe emgodini, futhi ukumanziswa kwenqatshelwe ngokuphelele. Uma ugcwalisa emuva, gcina amalunga, gcwalisa indawo ezungeze ipayipi ngesihlabathi, futhi ugcwalise kakhulu.
4. Ukuze uxhumanise ipayipi le-PVC nepayipi lensimbi, hlanza ukuhlangana kwepayipi lensimbi eliboshiwe, ukushisisa ukuze kuthambise ipayipi le-PVC (ngaphandle kokulishisa), bese ufaka ipayipi le-PVC epayipini lensimbi ukuze liphole. Umphumela uzoba ngcono uma ama-hoops enziwe ngepayipi lensimbi ehlanganiswa.
Amapayipi e-PVCingaxhunywa ngenye yezindlela ezine:
1. Uma ipayipi libe nomonakalo omkhulu, lipheleleiphayiphikufanele kushintshwe. Isixhumi esinezimbobo ezimbili singasetshenziswa ukwenza lokhu.
2. Indlela ye-solvent ingasetshenziswa ukumisa ukuvuza kwe-solvent glue. Kuleli qophelo, amanzi epayipi eliyinhloko ayakhanywa, okwenza ukucindezela kwepayipi okungalungile ngaphambi kokuba i-glue ifakwe emgodini endaweni yokuvuza. Iglue izodonselwa ezimbotsheni ngenxa yokucindezela okungekuhle kwepayipi, kumise ukuvuza.
3. Okuhlosiwe okuyinhloko kwenqubo yokulungisa imikhono ukubopha ukuvuza kwekesi ngemifantu emincane nezimbobo. Ipayipi lokulinganisa elifanayo manje selikhethelwa ukusika i-longitudinal futhi lihluka ngobude ukusuka ku-15 ukuya ku-500 px. Indawo yangaphakathi ye-casing kanye nengaphandle yepayipi elungisiwe ixhunywe emajoyini ngokuhambisana nenqubo esetshenzisiwe. Ngemva kokufaka i-glue, ingaphezulu liyaqina, bese liqiniswa ngokuqinile emthonjeni wokuvuza.
4. Ukwakha isixazululo se-resin usebenzisa i-epoxy resin yokwelapha, sebenzisa indlela ye-glass fibre. Ilukwe ngokulinganayo ebusweni bepayipi noma lapho kuhlangana khona indawo evuzayo ngemva kokucwiliswa kwisisombululo se-resin ngendwangu yengilazi yefibre, futhi ngemva kokuyelapha, iba yi-FRP.