I-PVC ithatha indawo yokwakha yemveli enjengeenkuni, intsimbi, ikhonkrithi kunye nodongwe kwizicelo ezininzi.
Ukusetyenziswa gwenxa, ukusebenza kweendleko kunye nengxelo ebalaseleyo yokusetyenziswa kuthetha ukuba yeyona polymer ebaluleke kakhulu kwicandelo lezokwakha, elibalelwa ngeepesenti ezingama-60 lemveliso ye-PVC ye-PVC ngo-2006.

I-Polyvinyl Chloride, i-PVC, yenye yezona zinto zidumileyo zeplastiki ezisetyenziswa ekwakheni nasekokwakha. Isetyenziselwa ukusela amanzi kunye nemibhobho yamanzi enkunkuma, izakhelo zeWewer, ezantsi kunye nophahla, igubungel yophahla, iintambo kunye nezinye izicelo ezininzi ezinje ngeenkuni, intsimbi, irabha kunye neglasi. Ezi mveliso zihlala zikhaphukhaphu, zibiza kakhulu kwaye zinike izibonelelo ezininzi zentsebenzo.

Yomelele kwaye ilula
Ukunganyangeki kwe-Abrashion ye-PVC, ubunzima bokukhanya, amandla afanelekileyo oomatshini kunye nobunzima buncedo oluphambili lobugcisa bokusetyenziswa kwezakhiwo kunye nezicelo zokwakha.

Kulula ukuyifaka
I-PVC inokuncitshiswa, yenziwe, idyile kwaye ijoyine ngokulula kwizitayile ezahlukeneyo. Ubunzima bayo bokukhanya bunciphisa ubunzima bokuphatha ngesandla.

Hlalani
I-PVC ayichasanga kwimozulu, ukujikeleza kwamachiza, ukulungela, ukothuka kunye ne-abrasion. Kungenxa yoko le nto kukhethwa okhethwe kubomi obuninzi obuninzi kunye neemveliso zangaphandle. Ngapha koko, i-akhawunti ye-akhawunti yexesha eliphakathi nelide kunye nexesha elide malunga neepesenti ezingama-85 zemveliso ye-PVC kwicandelo le-PVC nakwicandelo lezokwakha.

Umzekelo, kuqikelelwa ukuba ngaphezulu kwe-75 pesenti yemibhobho ye-PVC iya kuba nobuninzi beminyaka engama-40 ngenkonzo enokubakho ukuya kuthi ga kwiminyaka eli-100. Kwezinye iinkqubo ezinjengeeprofayili ze-Window kunye nokufakwa kwentambo, izifundo zibonisa ukuba ngaphezulu kweepesenti ezingama-60 kuzo ziya kuba nobomi obungaphezulu kweminyaka engama-40.

Isebenza kakuhle emalini
I-PVC ibe yinto ethandwayo kwizicelo zokwakha zangamashumi eminyaka ngenxa yepropathi yayo neyembutho ebonelela ngeengenelo ezigqwesileyo ngexabiso. Njengesixhobo esinokhuphiswano kakhulu ngokwexabiso, eli xabiso likwaphuculwa ziipropathi ezinje ngokunqunyulwa, ixesha lobomi kunye nolondolozo olusezantsi.

Izinto ezikhuselekileyo
I-PVC ayinatyhefu. Yinto ekhuselekileyo kunye nezixhobo ezixabisekileyo ekuhlaleni ezisetyenziselwe ngaphezulu kwesiqingatha senkulungwane. Ikwalihlabathi

Uninzi luphandwe kwaye luvavanywe ngokucacileyo iplastiki. Idibana nayo yonke imigangatho yehlabathi yokhuseleko kunye nempilo kuzo zombini iimveliso nezicelo ezisetyenziswayo.

Isifundo 'sengxoxo yeminye imiba yesayensi malunga nokusetyenziswa kwe-PVC' (1) ngumbutho wophando wenkqubo ye-Australic kunye neMizi-mveliso (i-CSIRO) e-Australia eququzelele i-2000 ukuba iinkqubo zalo zokwakha azisekho ezinye iindlela ezizezinye.

Ukufakwa kwe-PVC ngezinye izinto kwizinto ezikhoyo zokusingqongileyo ezingenazo ezongezelelweyo zophando okanye izibonelelo zobugcisa ziya kubangela iindleko eziphezulu. Umzekelo, njengenxalenye yeprojekthi yokuhlaziywa kweZindlu kwi-Bielefeld eJamani, kuqikelelwa ukuba ukutshintshwa kwe-PVC ngezinye izixhobo kuya kukhokelela kwi-2,25 i-euro yendawo ephakathi.

Izithintelo ekusetyenzisweni kwe-PVC kwizicelo ze-PVC aziyi kuba neziphumo ezibi zoqoqosho kuphela kodwa zineempembelelo ezibanzi zentlalo, ezinje ngokufumaneka kwezindlu ezifikelelekayo.

Ukunganyangeki komlilo
Njengazo zonke izinto eziphilayo ezisetyenziswa kwizakhiwo, kubandakanya ezinye iiplasitiki, iinkuni, iimveliso ze-PVC ziya kutshisa xa zityhilwe umlilo. Iimveliso ze-PVC nangona kunjalo ziyazicima, okt ukuba umthombo wokurhola urhoxisiwe baya kuyeka ukutsha. Ngenxa ye-chlorine ye-PVC yayo ephezulu ye-PVC ineempawu zokhuseleko lomlilo, ezithandwa kakhulu njenge. Kunzima ukunxiba, imveliso yobushushu iphantsi kakhulu kwaye idla ngokutsala umnxeba kunokuvelisa amathontsi avuthayo.

Kodwa ukuba kukho umlilo omkhulu kwisakhiwo, iimveliso ze-PVC ziya kutshisa kwaye zikhupha izinto ezinetyhefu zifana nezinye iimveliso zezinto eziphilayo.
Eyona nto ibaluleke kakhulu etyhutywe ngexesha lomlilo yi-carbon monoxide (CO), enoxanduva lwe-90 ukuya kwi-95% yokufa kwimililo. I-CO sisibulala-silika, kuba asinakufumana kwaye uninzi lwabantu lufa kwimililo ngelixa ulele. Kwaye ngokuqinisekileyo i-CO ikhutshwa zizixhobo eziphilayo, yibani huni, i-testile okanye plastile.

I-PVC kunye nezinye izinto ezithile zikwakhupha i-acid. Oku kukhutshwa kunokuvumba kwaye kuyacaphukisa, kwenza abantu bazame ukubaleka emlilweni. I-acid ethile, i-hydrochloric acid (i-HCL), iqhagamshelwe nge-PVC evuthayo. Ngokolwazi lwethu, akukho lixhoba lomlilo elakhe laqinisekiswa ngokwesayensi ukuba linetyhefu yeHCL.

Kwiminyaka ethile eyadlulayo Akukho mlilo omkhulu waxutyushwa ngaphandle kweDoioxins edlala indima enkulu kunxibelelwano kunye neenkqubo zokulinganisa. Namhlanje siyayazi ukuba iDioxins ikhutshwe emlilweni ayinampembelelo ebantwini abalandela iziphumo ezininzi kumlilo: amanqanaba e-Dioxin alinganiswe ngokuchasene nenqanaba lemvelaphi. Le nyaniso ibaluleke kakhulu ibonakalisiwe ziingxelo ezisemthethweni kwaye siyazi ukuba ezinye iibhloko ezininzi zikhutshwa kuyo yonke imililo, ezinjenge-polycyclic hydrocarbons (pah) kunye namasuntswana aphezulu kune-dioxins.

Ke kukho izizathu ezifanelekileyo zokusebenzisa iimveliso ze-PVC kwizakhiwo, kuba zidlala ngobuchwephesha, zinendawo elungileyo yokusingqongileyo kunye neepropathi ezifanelekileyo zoqoqosho, kwaye zithelekisa kakuhle nezinye izinto ngokukhuselekileyo komlilo.

I-insutor elungileyo
I-PVC ayiqhubeki umbane kwaye ke yinto entle kakhulu yokuyisebenzisa kwizicelo zombane ezifana nokuchithwa kweentambo.

Iguquguqukayo
Iipropathi zomzimba ze-PVC zivumela abalimi benqanaba eliphezulu lenkululeko xa beyila iimveliso ezintsha kunye nokuphuhlisa izisombululo apho i-PVC isebenza khona okanye impahla yokuhlaziya.

I-PVC ibe yinto ekhethiweyo yeebhodi zeebhodi ezichongiweyo, amanqaku ayingaphakathi, izakhelo, iinkqubo ezintsha kunye nenkunkuma nenkunkuma, ukufunyanwa kwezicelo ezininzi.

Umthombo: http://www.pvccowccow.org/p/p/P