Umhlaba omtsha ohlaza

Inkcazo:Nge-European Green Deal, ukubaluleka kweemveliso ezihlaziyiweyo kunye nezixhobo kuye kwanda. Ngokukodwa, kwiibhotile ze-PET, umxholo ophezulu wezinto ezihlaziyiweyo (rPET) ufunwa ngumzi-mveliso kunye nabathengi. Olu phononongo lwenziwe kwindawo yelebhu ephindaphinda iinkqubo zoshishino lwenyani, ukuphanda iimpembelelo ezinokuthi zibe kho kumgangatho we-rPET ngaphezu kweshumi elinanye lophotho lokurisayikilisha, elijolise ekusebenziseni izixa eziphezulu ze-rPET ngokuphindaphindiweyo. Umjikelo wawuquka i-extrusion, i-polycondensation yesimo esiqinileyo (SSP), i-extrusion yesibini ukulinganisa ukuveliswa kwebhotile, ukuhlamba okushushu kunye nesinyathelo sokumisa. I-75% ye-rPET kunye ne-25% ye-PET enyulu yakhutshelwa kwimijikelo elishumi elinanye ukulinganisa inkqubo yokuhlaziya kunye nemveliso. Iisampuli zenziwe uhlalutyo lwekhemikhali, lomzimba kunye nebhayoloji. Umgangatho wemathiriyeli ye-rPET awuchaphazelekanga kakubi. Iiparamitha ezinjengombala, i-intrinsic viscosity, ukuxinwa kweekhemikhali ezibalulekileyo kunye nobukho bokungcola kwe-mutagenic kunokuhlolwa ngokufanelekileyo. Umgangatho wemathiriyeli eveliswayo kusenokwenzeka ukuba iphenjelelwe ngumgangatho ophezulu wemathiriyeli yokufaka. Inkqubo evaliweyo yokuphinda isetyenziswe ibhotile ye-PET isebenzisa umxholo we-rPET ukuya kuthi ga kwi-75% yayinokwenzeka xa ilandela inkqubo ecetywayo, ebonisa ukuba eli nqanaba lomxholo osetyenzisiweyo lingagcinwa ngokungenammiselo ngaphandle kokunciphisa umgangatho;