Iizinkomishi zepulasitiki ezilahlwayongokuvamile zenziwa kusukelaI-Polyethylene terephthalate (PET noma i-PETE)I-Polypropylene(PP) ne-Polystyrene(PS).Zonke izinto ezintathu ziphephile.Ukuhlukahluka kwezimpawu zalezi zinto kwenza izinkomishi zinezindlela ezihlukene zokukhiqiza kanye nokubukeka.

I-PET noma i-PETE
Izinkomishi ezenziweI-Polyethylene terephthalate (PET, PETE)zicacile, ziyacwebezela futhi zihlala isikhathi eside.Ziyakwazi ukumelana neqhwa ku -22°F futhi zimelana nokushisa ku-180° F. Zilungele ijusi, iziphuzo ezibandayo njll. Zivame ukuba nenombolo”1″ ngaphakathi kophawu lokugaywa kabusha kanye ne-PET ngaphansi kophawu.

PP
Izinkomishi ze-polypropylene(PP) zisobala kancane, ziyaguquguquka futhi azikwazi ukumelana nokuqhekeka.Zinezinga eliphezulu lokuncibilika futhi zingamelana nowoyela, utshwala namakhemikhali amaningi.Ziphephile impela ezisetshenziselwa iziphuzo namanye amaphakheji.Izinkomishi ze-PP zingenziwa ngemibala ehlukene.Izinkomishi zivame ukuba nenombolo” 5″ ngaphakathi kophawu lokugaywa kabusha bese kuthi “PP” amagama eza ngaphansi kwayo.

PS
Ngokuvamile kunezinhlobo ezimbili zezinto ze-polystyrene ezisetshenziswayo ukwenza izinkomishi nezibuko: I-HIPS ne-GPPS.Izinkomishi ezine-thermoformed ngokuvamile zenziwe nge-HIPS.Umbala wawo wokuqala unenkungu futhi zingenziwa ngemibala ehlukene.Izinkomishi zama-HIPS ziqinile futhi ziyaphuka.Inkomishi ye-PS yincane kunenkomishi ye-PP enesisindo esifanayo.Izingilazi ezijovwe zenziwe nge-GPPS.Izibuko zilula futhi zidlulisela ukukhanya okuphezulu.Izibuko zepulasitiki zilungele amaqembu kanye nezinye izikhathi.Zingenziwa ngemibala ehlukene futhi izibuko zepulasitiki ze-neon zinhle kumaphathi ebusuku.Izinkomishi ze-PS ngokuvamile zinenombolo"6" ngaphakathi kophawu lokuphinda lisetshenziswe kanye namagama "PS" ngaphansi kwayo.