I-PVC ithathe indawo yokwakha yendabuko efana nokhuni, insimbi, ukhonkolo nobumba ezisetshenzisweni eziningi.
Ukuguquguquka kwezimali, ukusebenza kwezindleko kanye nerekhodi elihle lokusebenzisa kusho ukuthi i-polymer ebaluleke kakhulu emkhakheni wezokwakha, owabalwa amaphesenti angama-60 okukhiqizwa kwe-European PVC ngo-2006.

I-Polyvinyl Chloride, i-PVC, ingelinye lamapulasitiki athandwa kakhulu asetshenziswa ekwakheni nasekwakhiweni. Isetshenziswa ekuphuzeni kwamanzi nasemapayiphu amanzi angcolile, amafreyimu wewindows, ama-fool flooing, ukumboza odongeni, izintambo kanye nezinye izinhlelo zokusebenza njengoba zinikeza enye indlela eminingi yezinto zokwakha izinkuni, insimbi, irabha nengilazi. Le mikhiqizo ivame ukulula, ibiza kakhulu futhi inikeze izinzuzo eziningi zokusebenza.

Eqinile futhi esilula
Ukumelana nokukhanya kwe-PVC, isisindo esikhanyayo, amandla amahle okwenziwa ngomshini kanye nobunzima kuyizinzuzo zobuchwepheshe ezibalulekile zokusetshenziswa kwayo kuzicelo zokwakha kanye nokwakha.

Kulula ukuyifaka
I-PVC ingasikwa, idalwe, ifakwe futhi yajoyina kalula ngezitayela ezahlukahlukene. Isisindo saso esikhanyayo sinciphisa ubunzima bezandla.

-Qinile
I-PVC imelana nokuvuselelwa kwesimo sezulu, ukubola kwamakhemikhali, ukubhujiswa, ukushaqeka kanye no-abrasion. Ngakho-ke kuyindlela ekhethwayo yemikhiqizo eminingi ehlukene yempilo nemide. Eqinisweni, i-akhawunti yezicelo eziphakathi nendawo ende nehlala isikhathi eside yamaphesenti angama-85 okukhiqizwa kwe-PVC emkhakheni wezokwakha nokwakha.

Isibonelo, kulinganiselwa ukuthi amaphesenti angaphezu kwangu-75 amapayipi e-PVC azoba nesikhathi sokuphela kweminyaka engama-40 enezimpilo ezingaba khona ezisebenza ezindaweni ezifika eminyakeni eyi-100. Kwezinye izinhlelo zokusebenza ezifana namaphrofayili ewindi kanye nokufakwa kwekhebula, ucwaningo lukhombisa ukuthi amaphesenti angaphezu kwama-60 awo azoba nokusebenza kwezimpilo ezingaphezu kweminyaka engama-40.

Kuqiza kahle
I-PVC ibe yinto ethandwayo yezicelo zokwakha amashumishumi eminyaka ngenxa yezakhiwo zayo zomzimba nezobuchwepheshe ezinikezela ngezinzuzo ezinhle kakhulu zokusebenza kwezindleko. Njengezinto ezibonakalayo kuncintisana kakhulu ngokuya ngentengo, leli nani lithuthukiswa futhi ngezakhiwo ezifana nokuqina kwalo, isikhathi sokuphila kanye nokulungiswa okuphansi.

Izinto eziphephile
I-PVC ayinobuthi. Kuyinto ephephile kanye nemithombo ebalulekile emphakathini esetshenziswe ngaphezu kwesigamu seminyaka. Futhi kungomhlaba

ecwaningwe kakhulu futhi ihlolwe ngokuphelele ipulasitiki. Ihlangabezana nazo zonke izindinganiso zamazwe omhlaba zokuphepha nezempilo kuyo yomibili imikhiqizo kanye nezicelo ezisetshenziswa ngazo.

Ucwaningo 'luyingxoxo yezinye izindaba zesayensi maqondana nokusetshenziswa kwe-PVC' (1) yi-Commonwealth Science Yesayensi Nezimboni (CSIRO) e-Australia (CSIRO) e-Australia yaphetha ngo-2000 ukuthi i-PVC esakhiweni sayo kanye nezokwakha ayinawo umphumela emvelweni okuzo zonke izindlela.

Ukufakwa esikhundleni kwe-PVC ngezinye izinto ezisetshenziselwa izizathu zezemvelo ngaphandle kocwaningo olwengeziwe noma izinzuzo zobuchwepheshe ezifakazelwe nazo kuzoholela ezindlekweni eziphakeme. Isibonelo, njengengxenye yephrojekthi yokuvuselelwa kwezindlu eBielefeld eJalimane, kulinganiselwa ukuthi ukufakwa kwe-PVC ngezinye izinto kuzoholela ekunyuseni kwezindleko ezingaba ngu-2,250 euro efulethini elilinganiselwa kusayizi.

Imikhawulo ekusetshenzisweni kwe-PVC ezisetshenzisweni zokwakha ngeke kube nemiphumela yezomnotho engemihle kuphela kodwa futhi ibe nemithelela ebanzi yezenhlalo, njengokutholakala kwezindlu ezingabizi.

Ukumelana nomlilo
Njengazo zonke ezinye izinto eziphilayo ezisetshenziswa ezakhiweni, kufaka phakathi amanye amapulasitiki, izinkuni, izindwangu njll, imikhiqizo ye-PVC izoshisa lapho ivezwa umlilo. Imikhiqizo ye-PVC Noma ingabe ukuziqhenya, okungukuthi uma umthombo wokulahla uhoxiswa bazoyeka ukuvutha. Ngenxa yemikhiqizo yayo ephezulu ye-chlorine yokuqukethwe kwe-PVC inezici zokuphepha komlilo, ezithandeka kakhulu njengoba. Kunzima ukuqeda, ukukhiqizwa kokushisa kuphansi ngokuqhathaniswa futhi bathambekele ekushayweni kwe-char kunokuba bakhiqize amaconsi avutha amalangabi.

Kepha uma kunomlilo omkhulu esakhiweni, imikhiqizo ye-PVC izoshisa futhi izokhipha izinto ezinobuthi njengayo yonke eminye imikhiqizo ye-organic.
Ubuthi obuhle kakhulu obukhishwe ngesikhathi sokushiswa kwemililo yi-carbon monoxide (co), enesibopho sokufa okungu-90 kuya ku-95% ekufeni komlilo. CO ungumbulali oxegayo, ngoba asikwazi ukuwuhogela futhi abantu abaningi bafele imililo ngenkathi belele. Futhi-ke couning adonswa yizo zonke izinto eziphilayo, kungaba ngokhuni, izindwangu noma amapulasitiki.

I-PVC kanye nezinye izinto zokwakha nayo ikhipha ama-acid. Lokhu kukhishwa kungavinjelwa futhi kuyacasula, okwenza abantu bazame ukubalekela umlilo. I-acid ethile, i-hydrochloric acid (HCL), ixhunyiwe nge-PVC evuthayo. Ngokwazi kwethu konke, awukho isisulu somlilo owake wafakazelwa ngokwesayensi ukuthi ahlaselwe ubuthi be-HCL.

Eminyakeni ethile edlule awukho umlilo omkhulu oxoxiwe ngaphandle kokuthi ama-dioxins adlala indima enkulu kwezokuxhumana nezinhlelo zokulinganisa. Namuhla siyazi ukuthi ama-dioxins akhishwe emlilweni awunawo umthelela kubantu ngemuva kwemiphumela yezifundo eziningana ngomlilo oveziwe Leli qiniso elibaluleke kakhulu liye laqashelwa yimibiko esemthethweni futhi siyazi ukuthi amanye ama-carcinogens amaningi akhishwa kuwo wonke umlilo, njenge-polycyclic aromatic hydrocarbons (PAH) ama-hydrocarbons (Ph) nezinhlayiya ezinhle kakhulu, ezethula ingozi enkulu kakhulu kune-dioxins.

Ngakho-ke kunezizathu ezinhle kakhulu zokusebenzisa imikhiqizo ye-PVC ezakhiweni, ngoba zenza kahle ubuchwepheshe, zibe nezindawo ezinhle zezomnotho zemvelo nezihle kakhulu, bese ziqhathanisa kahle nezinye izinto ngokuya ngokuphepha komlilo.

I-insulator enhle
I-PVC ayiqhubeki ugesi ngakho-ke iyisitatimende esihle kakhulu sokusebenzisa izinhlelo zokusebenza zikagesi ezinjengokufutheka kwezintambo zezintambo.

-Nolwazi olunhlobonhlobo
Izakhiwo ezibonakalayo ze-PVC zivumela abaklami ngezinga eliphakeme lenkululeko lapho behlela imikhiqizo emisha kanye nezixazululo ezithuthukayo lapho i-PVC isebenza khona esikhundleni noma i-refullingry aket.

I-PVC ibe yinto ekhethwayo yamabhodi okuklama ama-scaffolding, izindatshana zokuklama zangaphakathi, ozimele windows, izinhlelo zamanzi ezintsha nezimfucumfucu, ukufakwa kwamanzi okungcola kanye nezinye izinhlelo eziningi.

Umthombo: http://www.pvcconcts.org/en/p/material