Zithini iimpawu zePolyvinyl Chloride (PVC)?

Ezinye zezona mpawu zibalulekileyo zePolyvinyl Chloride (PVC) zezi:

1. Uxinano:I-PVC ixinene kakhulu xa ithelekiswa nezinye iiplastiki ezininzi (ubunzima obuthile bujikeleze i-1.4)
2. Uqoqosho:I-PVC ifumaneka lula kwaye inexabiso eliphantsi.
3. Ubunzima:I-PVC eqinileyo ilungele ukuqina kwayo nokuqina kwayo.
4. Amandla:I-PVC eqinileyo inamandla okutyhala abalaseleyo.

I-Polyvinyl Chloride yinto "eyi-thermoplastic" (ngokuchaseneyo ne "thermoset"), enento yokwenza nendlela iplastiki ephendula ngayo kubushushu. Izinto ze-thermoplastic ziba lulwelo kwindawo yazo yokunyibilika (uluhlu lwe-PVC phakathi kwe-100 degrees Celsius ephantsi kakhulu kunye namaxabiso aphezulu njenge-260 degrees Celsius kuxhomekeke kwizongezo). Uphawu oluphambili oluluncedo malunga ne-thermoplastics kukuba zinokufudunyezwa zifikelele kwinqanaba lazo lokunyibilika, zipholiswe, kwaye ziphinde zifudunyezwe kwakhona ngaphandle kokuwohloka okukhulu. Endaweni yokutsha, ii-thermoplastics ezifana ne-polypropylene liquefy zivumela ukuba zifakwe ngokulula kwaye ziphinde zisetyenziswe. Ngokwahlukileyo koko, iiplastiki ze-thermoset zinokufudunyezwa kube kanye kuphela (ngesiqhelo ngexesha lenkqubo yokubumba inaliti). Ukufudumeza kokuqala kubangela ukuba izinto ze-thermoset ziqine (ezifana ne-epoxy enamacandelo ama-2), nto leyo ebangela utshintsho lweekhemikhali olungenakujikwa. Ukuba uzama ukufudumeza iplastiki ye-thermoset kubushushu obuphezulu okwesibini, iya kutsha kuphela. Olu phawu lwenza izinto ze-thermoset zingabi zilungele ukurisayikilishwa.

I-PVC inika uluhlu olubanzi lwezicelo kunye neenzuzo kumashishini amaninzi kwiindlela zayo eziqinileyo neziguquguqukayo. Ngokukodwa, i-Rigid PVC inoxinano olukhulu lweplastiki, okwenza ibe nzima kakhulu kwaye iqine kakhulu ngokubanzi. Ikwafumaneka lula kwaye ingabizi kakhulu, nto leyo, xa idibene neempawu ezininzi zeplastiki ezihlala ixesha elide, yenza ukuba ibe lukhetho olulula kwiindlela ezininzi zoshishino ezifana nokwakha.

I-PVC ihlala ixesha elide kakhulu kwaye ilula, nto leyo eyenza ukuba ibe yinto ekhangayo yokwakha, yokulungisa imibhobho, nakwezinye izinto zoshishino. Ukongeza, umxholo wayo ophezulu we-chlorine wenza ukuba le nto ingatshi, esinye sezizathu zokuba ifumane udumo olukhulu kumashishini ahlukeneyo.