Yintoni i-Polyvinyl Chiride (PVC), kwaye isetyenziselwa ntoni?

I-Polyvinyl Chloride (i-PVC) yenye yezona zinto zisetyenziswa kakhulu ze-thermoplastic ehlabathini (ecaleni kweplastiki embalwa esetyenziswe njenge-plastics esetyenziswe njengezilwanyana kunye ne-PP). Yimvelo imhlophe kwaye iBrittle kakhulu (ngaphambi kongezwa kweplastiki) iplastiki. I-PVC ibe nxamnye neeplastiki ezininzi ziqale ukwenziwa ngo-1872 kwaye ziveliswe yinkampani ye-BF ye-BF nge-1920s. Ngokuthelekisa, ezinye iiplasitiki ezininzi zaqengqeleka kuqala zaza zaba zenziwe ngorhwebo kuphela ngo-1940 kuphela nowe-1950. Isetyenziselwa kakhulu ishishini lokwakha kodwa ikwasetyenziselwa imiqondiso, izicelo zokhathalelo lwempilo, kunye nefibwe yengubo.

I-PVC iveliswa kwiifom ezibini ngokubanzi, kuqala njenge-tigid okanye i-polymer eqinileyo (i-RPVC engathathi right (i-RPVC okanye i-UPVC), kwaye yesibini njengeplastiki eguquguqukayo. Ukuguquguquka, ukufakelwa kweplastiki okanye i-PVC ithambekele kwaye inqabile ukugoba kune-procc ngenxa yongezwa kweeplanga (umz. I-Diisononyl Phthalate okanye iDisononyl Phthalate okanye iDiisononyl Phthalate okanye iDiisononyl phthalate okanye i-didiononyl phthalate okanye idayini). I-PVC eguquguqukayo isetyenziswa ekwakhiweni njengokufakelwa kweengcingo zombane okanye kumgangatho wamakhaya, izibhedlele, izikolo, kunye nezinye iindawo eziphambili, kwaye kwezinye iimeko njengokutshintshwa kwerabha.

I-rigid pvc ikwasetyenziswa ekwakhiweni njengombhobho wemibhobho kunye nokuhlala okuhlala kubizwa ngokuba ligama elithi "iVinyl" eUnited States. Umbhobho we-PVC uhlala ekubhekiselwa kuyo "ishedyuli" yayo (umz. Ishedyuli 40 okanye ishedyuli 80). Umahluko omkhulu phakathi kweeshedyuli zibandakanya izinto ezifana nobunzima be-Wall, ukulinganisa uxinzelelo kunye nombala.
Ezinye zeempawu zeplastiki zePVC zibandakanya ixabiso laso eliphantsi, ukumelana nokuchasana nokudayala kwendalo (kunye neekhemikhali kunye neekhemikhali), amandla aphezulu, kunye namandla aphezulu eplastiki kwimeko yeplastiki ye-PVC. Ifumaneka ngokubanzi, isetyenziswa kwaye isetyenzisiwe ngokulula (isetyenziselwe ukuphinda isetyenziselwe iKhowudi yesazisi "3").