Amabhodlela epulasitikisebeyingxenye ebalulekile yokuphila kwethu kwansuku zonke.Siwasebenzisela ukugcina amanzi, iziphuzo ngisho nabahlanza indlu.Kodwa ingabe uke waqaphela izimpawu ezincane ezibhalwe phansi kulawa mabhodlela?Baphethe ulwazi olubalulekile mayelana nohlobo lwepulasitiki esetshenzisiwe, imiyalelo yokugaywa kabusha, nokunye okuningi.Kule bhulogi, sizohlola izincazelo zalezi zimpawu nokubaluleka kwazo ekuqondeni amapulasitiki esiwasebenzisayo.
Amabhodlela epulasitiki abhalwe ngophawu olunxantathu olwaziwa nge-Resin Identification Code (RIC).Lolu phawu luqukethe inombolo esuka ku-1 kuye ku-7, evalelwe phakathi kwemicibisholo ejahayo.Inombolo ngayinye imele uhlobo oluhlukile lwepulasitiki, esiza abathengi kanye nezindawo zokugaywa kabusha ukuze bazibone futhi bazihlele ngokufanele.
Ake siqale ngophawu oluvame ukusetshenziswa kakhulu, inombolo 1. Imele i-Polyethylene Terephthalate (PET noma i-PETE) - ipulasitiki efanayo esetshenziswa emabhodleleni eziphuzo ezithambile.I-PET yamukelwa kabanzi ngezinhlelo zokugaywa kabusha futhi ingaphinda igaywe kabusha ibe amabhodlela amasha, i-fiberfill yamajakhethi, ngisho nomata.
Ukuqhubekela kunombolo 2, sine-High-Density Polyethylene (HDPE).Lo pulasitiki uvame ukusetshenziswa ezitsheni zobisi, amabhodlela okugeza, nezikhwama zegrosa.I-HDPE iphinde igaywe kabusha futhi iguqulwa ibe izingodo zepulasitiki, amapayipi, nemigqomo yokugaywa kabusha.
Inombolo 3 imele i-Polyvinyl Chloride (PVC).I-PVC ivame ukusetshenziswa kumapayipi amapayipi, amafilimu okunamathela, kanye nokufakwa kwamabhamuza.Kodwa-ke, i-PVC ayisebenzi kabusha kalula futhi ibeka izingozi zemvelo ngesikhathi sokukhiqiza nokulahlwa.
Inombolo yesi-4 imele i-Low-Density Polyethylene (LDPE).I-LDPE isetshenziswa ezikhwameni zegrosa, ezigoqweni zepulasitiki, nasemabhodleleni acuthekayo.Nakuba ingasetshenziswa kabusha ngokwezinga elithile, akuzona zonke izinhlelo zokugaywa kabusha eziyamukelayo.Izikhwama ezisebenziseka kabusha nefilimu yepulasitiki zenziwe nge-LDPE egaywe kabusha.
I-Polypropylene (PP) ipulasitiki echazwe ngenombolo 5. I-PP ivame ukutholakala ezitsheni zeyogathi, izikepisi zamabhodlela, nezinto zokusika ezilahlwayo.Inezinga eliphezulu lokuncibilika, okuyenza ilungele iziqukathi eziphephile kuma-microwave.I-PP iyakwazi ukuphinda isetshenziswe futhi iguqulwe ibe izibani zesignali, imigqomo yokugcina, namakesi ebhethri.
Inombolo 6 eyePolystyrene (PS), eyaziwa nangokuthi i-Styrofoam.I-PS isetshenziswa ezitsheni ezikhiphayo, izinkomishi ezilahlwayo, nezinto zokupakisha.Ngeshwa, kunzima ukuphinda kusetshenziswe futhi akwamukeleki izinhlelo eziningi zokugaywa kabusha ngenxa yenani layo lemakethe eliphansi.
Okokugcina, inombolo yesi-7 ihlanganisa wonke amanye amapulasitiki noma izingxube.Kuhlanganisa imikhiqizo efana ne-polycarbonate (PC) esetshenziswa emabhodleleni amanzi asebenziseka kabusha, namapulasitiki angaboli enziwe ngezinto ezisekelwe esitshalweni, nezinto ze-Tritan ezivela e-Eastman, kanye ne-Ecozen evela kukhemikhali ye-SK.Ngenkathi amanye amapulasitiki angu-7 engasebenza kabusha, amanye awanjalo, futhi ukulahlwa okufanele kubalulekile.
Ukuqonda lezi zimpawu kanye namapulastiki ahambisana nawo kungasiza kakhulu ekwehliseni udoti kanye nokukhuthaza izinqubo ezifanele zokugaywa kabusha.Ngokuhlonza izinhlobo zepulasitiki esizisebenzisayo, singenza izinqumo ezinolwazi mayelana nokuphinda siwasebenzise, ukuwagaya kabusha, noma ukuwalahla ngokuzibophezela.
Ngokuzayo lapho uthatha ibhodlela lepulasitiki, thatha isikhashana ukuhlola uphawu ngezansi bese ucabangela umthelela walo.Khumbula, izenzo ezincane ezifana nokugaywa kabusha zingenza umehluko omkhulu ekuvikeleni indawo yethu.Ngokubambisana, asilwele ikusasa eliluhlaza futhi elisimeme.
Isikhathi sokuthumela: Aug-29-2023