Kwiminyaka yakutshanje, izinto ezininzi ezitsha ziye zavela, ukwenzela ukuba izinto ezinexabiso eliphezulu kwixesha elidlulileyo zitshintshe ngokuthe ngcembe kwixabiso, ngakumbi kwizicathulo kunye nemibhobho.
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Kakade ke, ezinye izinto zibonakala zikwimeko entle. Emva kophando, unokuqonda ukuba zeziphi ezinye zezinto.
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Ngokomzekelo, izinto ezimbini ze-pvc kunye ne-pu, abantu abaninzi baye bahlala benamathandabuzo, ngoko ke umahluko phakathi kwezinto ze-pvc kunye ne-pu?
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Umahluko phakathi kwe-pvc kunye nezixhobo ze-pu
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Isikhumba sePU sinzima ngakumbi kunePVC yesikhumba kwinkqubo yokuvelisa. Ngenxa yokuba i-PU isiseko selaphu sisixhobo se-PU se-canvas esinamandla afanelekileyo, ngaphezu kokugqunywa kwilaphu eliphezulu, ilaphu lesiseko lingabandakanywa phakathi ukuze liyenze Imbonakalo ayinakububona ubukho belaphu.
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1. Iimpawu ezibonakalayo ze-PU yesikhumba zingcono kune-PVC yesikhumba, ukumelana ne-tortuosity, ukuthamba, amandla aphezulu, kunye nokuphefumula (akukho PVC).
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Ipateni yesikhumba yePVC yenziwe ngokucinezela okushushu kweerola zepateni yentsimbi. Ipateni ye-PU yesikhumba ishushu icinezelwe kumphezulu wesikhumba esigqityiweyo kunye nohlobo lwephepha lepateni. Emva kokulinda ukupholisa, isikhumba sephepha sihlukaniswe kwaye siphathwe phezulu.
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Ixabiso le-PU lingaphezulu kwe-PVC eliphindwe kabini, kwaye ixabiso le-PU lesikhumba kunye neemfuneko ezithile ezikhethekileyo ngamaxesha angama-2-3 aphezulu kune-PVC yesikhumba.
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Ngokuqhelekileyo, iphepha lepateni elifunekayo kwi-PU yesikhumba inokuchithwa kuphela emva kwamaxesha ama-4-5. Ixesha lokusetyenziswa kwepatheni ye-roller lide, ngoko ke ixabiso lesikhumba sePU liphezulu kunelo lesikhumba sePVC.
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2. Indlela yokwahlula iPU kunye nePVC ilula.
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Ukusuka kwiikona, ilaphu elisisiseko lePU lijiyile kakhulu kunePVC. Kukho kwakhona umahluko kwimvakalelo. Ukuziva kwePU kuthambile. I-PVC ivakala inzima ngakumbi.
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Ungasebenzisa umlilo ukutshisa, incasa yePU ilula kakhulu kunePVC.
Ixesha lokuposa: Epreli-22-2020