Abantu bajwayele ukugoqa zonke izinhlobo zokudla ngepulasitiki.Lapho izitsha zidinga ukushiswa, zesaba ukuchithwa kwamafutha.Baphinde basonge ungqimba lwepulasitiki bese belufaka ku-microwave ukuze lufudumale.Ngempela, ukugoqa ngepulasitiki kancane kancane sekuyinto ebaluleke kakhulu ekuphileni kwansuku zonke kwabantu.Kodwa-ke, uyazi, yikuphi lokhu kugoqa kwepulasitiki elincanyana?
Njengamanje, iningi lefilimu yokudla ethengiswa emakethe, njengezikhwama zepulasitiki ezivame ukusetshenziswa, zenziwe nge-ethylene masterbatch.Ezinye izinto zokugoqa zepulasitiki ziyi-polyethylene (ebizwa ngokuthi i-PE), engenawo ama-plasticizers futhi aphephile uma kuqhathaniswa nawo;ezinye izinto ezisetshenziswayo ziyi-polyvinyl chloride (ebizwa ngokuthi i-PVC), evame ukufaka ama-stabilizers kanye nezinto zokugcoba , ama-axiliary processing agents nezinye izinto zokusetshenziswa ziyingozi emzimbeni womuntu.
Indlela yokuhlukanisa ifilimu yokudla ye-PE ne-PVC?
1. Eso lenyama: Impahla ye-PE inokungafihli kahle, nombala umhlophe, nokudla okumboziwe kubukeka kufiphele;Impahla ye-PVC ine-gloss enhle futhi ibukeka icacile futhi isobala, ngenxa ye-plasticizer, iwukukhanya okuncane kokukhanya okuphuzi.
2. Ngesandla: Impahla ye-PE ithambile, kodwa inokuqina okubi, futhi ingaphuka ngemva kokuzelula;Impahla ye-PVC inokuqina okuqinile, inganwetshwa kakhulu futhi inwetshwe ngaphandle kokuphuka, futhi kulula ukunamathela esandleni.
3. Ukushisa ngomlilo: Ngemva kokuba ifilimu yokudla ye-PE ivutha ngomlilo, ilangabi liphuzi futhi livutha ngokushesha, nephunga elivuthayo lekhandlela;kuyilapho ilangabi lefilimu yokunamathela ye-PVC livutha ngokuphuzi-luhlaza, ngaphandle kwamafutha aconsayo, lizocinywa uma lishiya umthombo womlilo, futhi liyiphunga elinamandla elivuthayo.
4. Ukucwiliswa emanzini: Ngenxa yokuthi ukuminyana kwakho kokubili kuhlukile, ukuminyana kwefilimu ye-PE cling iphansi kunaleyo yamanzi, futhi izontanta phezulu ngemva kokucwiliswa emanzini;kuyilapho ukuminyana kwefilimu yokudla ye-PVC kuphakeme kunamanzi, futhi izocwila lapho icwiliswa emanzini.
Abantu kufanele babheke ngokucophelela izinto ezikulebula yomkhiqizo lapho bethenga ukugoqa kwepulasitiki.Impahla ehlobene yezinto ze-PE imsulwa, iphephile futhi ayinabo ubuthi.Lapho uthenga, hamba esitolo esivamile ukuze uthenge imikhiqizo kubakhiqizi abavamile.Uma usebenzisa, qaphela izinga lokushisa ifilimu yokudla engakwazi ukumelana nayo, futhi uyishise ngokuvumelana nezinga lokushisa eliphawulwe kumkhiqizo, ukuze uvimbele ifilimu yokudla ephansi ukuthi ithambile lapho ishisa futhi ibangela ukulimala empilweni yomuntu.
Isikhathi sokuthumela: Aug-14-2023