I-PET okanye i-PETE (i-polyethylene terephthalate) iplastiki kwaye ifomu ye-polyester. I-polyethylene terephthalate yipolymer eyenziwe ngumbutho wee-monomers ezimbini: i-ethylene glycol iguqulwe kunye ne-acere terephthalic acid. Kwakuqala ukuhlanganiswa eMntla Melika ngama-chemist Dupont ngawo-1940.
Ikhefu ngekhowudi ye-# 1 okanye kufuphi nezantsi kweebhotile kunye neenkonkxa, i-PET isetyenziselwa ukupakisha uluhlu lweemveliso ezibandakanya iziyobisi, ibhotela yebhanki, iimpahla zokubhaka, ukuvelisa, ukutya okunqabileyo, ukugqoka i-saladi, izimonyo kunye nabahlambululi bekhaya.
Ixabiswe ngamandla, ukuzinza kwe-thermo-stability, kunye nokungafihli, i-PET yinto ethandwayo yokupakisha. I-PET nayo ayithengi, ilula, ihlaziywa, iyanqatshwa kwaye ibuyiswe kwakhona.
I-polyethylene i-terephthalate yenziwe nge-recycled eyaziwayo njenge-RPET, kwaye iyona iplastiki ephindaphindiwe kakhulu kwihlabathi. Ngokutsho kwe-PETRA, i-PET Resin Association, izinga le-recycling yase-US li malunga ne-30%, ngelixa li-52% kwi-European Union. Iipreli eziyi-1.8 yezigidi ze-PET zaphinda ziphinda zenziwe kwakhona ngo-2015, zisetyenziselwa ukwenza iindidi zemveliso ekupheleni. I-RPET iqeshwe ngeemveliso ezintsha ezifana:
- i-polyester carpet fiber
- i-T-shirt
- zangaphantsi
- izicathulo zezemidlalo
- umthwalo, upholstery
- iingubo kunye ne-fiberfill yeengxowa zokulala kunye neengubo zasebusika
- ukufakelwa kwamashishini
- iphepha kunye nefilimu
- zithuthi
- ezintsha zePET
Ukusetyenziswa kwe-PET esebenzayo endaweni ye-resin yobuntombi ngokuqhelekileyo kubangela ukunciphisa amandla okunciphisa amandla, iindleko eziphantsi kunye nokunciphisa impembelelo engqongileyo.
Ukuqokelela, UkuCwangcisa, nokuCwangcisa
Iinkcukacha zePET zabathengi be-PET ziqokelelwe kwiiprogram zokubuyisela i-curbside, ezibandakanya zombini ukusasazwa kwamanzi kunye nokusondeza kweendlela ezimbini . Ukongezelela, ezinye iinkqubo ze-PET zokuphinda kwakhona zilungiselelwe ukuguqula iibhotile ze-PET ezingenanto kwiindawo zokuqokelela okuphezulu njengeziganeko ezinkulu.
Izinto ezinokusetyenziswa kwakhona njengePET zingahle zihlulwe kwezinye iindawo zokubuyisela izinto kwiindawo zokufumana izinto eziphathekayo , kwaye zihanjiswe ukuthunyelwa kwiziko lokubuyisela iPET. Njengolunye uhlobo lwezinto eziphathekayo, kufuneka kuqwalaselwe ukukhuthaza ukuphathwa kakuhle kwe-bale nokunciphisa ukungcola kwemveliso.
Emva kokufika kwindawo yokubuyisela kabusha njenge-ECOSTAR, iibales zijongwa ngaphambi kokuba zibekwe umthumeli kwaye zondliwe kwi-bale breaker. Iibhali ziyahlukana, kwaye iibhotile ziyaculwa. Le ngcaciso inokuhlaziywa kwangaphambili, kwaye iilebula zisusiwe, zisebenzisa i-steam kunye neekhemikhali. Ngexesha lokuqala lokuhlamba, iibhotile ezithunyelwe ngamanzi ashushu okanye i-trommel emoyeni ziya kutsho kwiibhotile ze-PVC zijikeleza ngokumnyama, zinikezela ukuchonga okulula kunye nokususwa ngexesha lokuhlunga.
Ukuchithwa kwangaphambi kokuhlamba kunye nokukhishwa kwelebula kuvumela ukuchonga okulula ukusetyenziswa kwezinto ezisetyenzisiweyo ezisetyenzisiweyo (NIR) ukukhetha izixhobo ukususa ezinye izinto. Olunye ubuchwephesha oluqeshwe luquka i-metal detectors kunye namabhanti okuhlengahlengayo angashenxisa i-PET kwibhande okanye asuse enye into kwaye ashiye i-PET kwibhande.
Amasu okukhetha amanyathelo angabandakanya nokuba yi-positive (ukususa i-PET kwimpahla yokuhamba) okanye ukungalunganga (ukususa izinto ezingezizo ze-PET) ukukhetha.
Emva kokuba zihlanjululwe, impahla ye-PET igxile kwiinqununu ezibizwa ngokuba yi "flakes." Ubungcwele bentlaba bubaluleke kakhulu ekugcineni ixabiso lentsimbi eplastiki. Iinkqubo zokwahlula okuqhubekayo ziquka ukuhlamba kunye nokuhlaliswa komoya kunye namanzi okuhlamba (ukucoca / ukuhamba) ukuhlula izinto ezivela ngaphandle.
Ukuhlamba kungenziwa kwinqanaba eliqhelekileyo okanye eliphakamileyo lokushisa. Ukusetyenziswa kwe-disinfectants kunye ne-detergents anids ekufezeni ukucoca ngokupheleleyo.
Emva kokugqitywa kokutshiza, ukuhlamba, kunye nokuhlukana, amanqaku ayahlanjululwa ukuze asuse nayiphi na into ecocekileyo okanye ehlambulukileyo. I-PET esele iphinda isomiswe ngaphambi kokubuyiswa kwakhona njengento yokuvelisa okanye ngaphambi kokuqhutyelwa phambili.
Ukucoca i-Melt kungaphinde kucocwe izinto ngokususa nayiphi na into engcolisekanga engeyiyo inyibiliki enokuthi iphile kumanyathelo angaphambili.
Izinto ezigqithisiweyo zidlulayo kwiinkqutyana zezikrini ukuze zenze iipeliti ngexesha i-particulate engenakuncibilika ivalwe. Iplastiki eplastiki inikezela ngezinto ezinokulingana ezinokubuyiswa kwakhona kwinkqubo yokuvelisa.
Iirhafu zokubuyisela e-US ziye zahlala ziphantsi okanye ziyancipha kwiminyaka yamuva. Le meko ibhekiswe kwisizukulwana esingaphantsi kwezinto ngokusetyenziswa kweenkqubo zokubuyisela i-curbside, eziye zihambelana nokunciphisa ukugqithiswa kweziphuzo ze-carbonate, kwakunye neendlela eziye zenza ukuveliswa kweebhotile ezikhulayo.
Ukufumana okungakumbi malunga nokubuyiswa kwe-PET, tyelela uMbutho wePlastics Recyclers okanye iPETRA.