Yiziphi Izici Ze-Polyvinyl Chloride (PVC)?

Ezinye zezimpawu ezibaluleke kakhulu ze-Polyvinyl Chloride (PVC) yilezi:

1. Ubuningi:I-PVC iminyene kakhulu uma iqhathaniswa neningi lamapulasitiki (amandla adonsela phansi athile azungeze u-1.4)
2. Ezomnotho:I-PVC itholakala kalula futhi ishibhile.
3. Ubulukhuni:I-PVC eqinile ihle kakhulu ngenxa yokuqina nokuqina.
4. Amandla:I-PVC eqinile inamandla amahle kakhulu okubamba.

I-Polyvinyl Chloride iyinto "ye-thermoplastic" (ngokungafani ne-"thermoset"), ehlobene nendlela ipulasitiki esabela ngayo ekushiseni. Izinto ze-Thermoplastic ziba uketshezi endaweni yazo yokuncibilika (ububanzi be-PVC phakathi kwama-degree Celsius angu-100 aphansi kakhulu kanye namanani aphezulu njenge-degree Celsius angu-260). Isici esiwusizo esiyinhloko ngama-thermoplastic ukuthi angashiswa aze afike endaweni yawo yokuncibilika, apholiswe, futhi aphinde ashiswe ngaphandle kokuwohloka okukhulu. Esikhundleni sokusha, ama-thermoplastic afana ne-polypropylene liquefy avumela ukuthi afakwe kalula bese ephinda asetshenziswe. Ngokuphambene nalokho, amapulasitiki e-thermoset angashiswa kanye kuphela (ngokuvamile ngesikhathi senqubo yokubumba umjovo). Ukushisa kokuqala kubangela ukuthi izinto ze-thermoset ziqine (ezifana ne-epoxy enezingxenye ezimbili), okuholela ekushintsheni kwamakhemikhali okungenakushintshwa. Uma uzama ukushisa ipulasitiki ye-thermoset ibe yizinga lokushisa eliphakeme okwesibili, izosha kuphela. Lesi sici senza izinto ze-thermoset zingabi nethuba elihle lokuphinda zisetshenziswe.

I-PVC inikeza izinhlobo eziningi zezicelo nezinzuzo kuzo zonke izimboni eziningi kokubili ezimweni zayo eziqinile neziguquguqukayo. Ikakhulukazi, i-PVC eqinile inobukhulu obukhulu bepulasitiki, okwenza ibe nzima kakhulu futhi ngokuvamile iqine kakhulu. Itholakala kalula futhi iyonga imali, okuthi, uma ihlanganiswe nezici eziningi zepulasitiki ezihlala isikhathi eside, ikwenze kube ukukhetha okulula kwezicelo eziningi zezimboni njengokwakha.

I-PVC iqinile kakhulu futhi ilula, okwenza ibe yinto ekhangayo yokwakha, ukufaka amapayipi, nezinye izinhlelo zokusebenza zezimboni. Ngaphezu kwalokho, okuqukethwe kwayo okuphezulu kwe-chlorine kwenza le nto ingashi, esinye isizathu esenza ithole ukuthandwa kangaka ezimbonini ezahlukahlukene.