Umhlaba omusha oluhlaza

Abstract:Nge-European Green Deal, ukubaluleka kwemikhiqizo egaywe kabusha nezinto zokwakha kunyukile.Ikakhulukazi, kumabhodlela e-PET, okuqukethwe okuphezulu kwezinto ezigaywe kabusha (rPET) kudingwa yimboni nabathengi.Lolu cwaningo lwenziwa endaweni yelebhu ephindaphinda izinqubo zezimboni zempilo yangempela, ukuze kuphenywe imithelela engaba khona kukhwalithi ye-rPET phezu kwezihibe eziyishumi nanye zokuvuselela kabusha, okuhloswe ngazo ukusebenzisa amanani aphezulu e-rPET ngokuphindaphindiwe.Umjikelezo wawuhlanganisa i-extrusion, i-solid state polycondensation (SSP), i-extrusion yesibili yokulingisa ukukhiqizwa kwamabhodlela, ukugeza okushisayo kanye nesinyathelo sokumisa.U-75% we-rPET kanye no-25% we-PET emsulwa akhishwe ngemijikelezo eyishumi nanye ukuze alingise inqubo yokuvuselela nokukhiqiza.Amasampula ahlaziywe ngamakhemikhali, ngokomzimba nangokwebhayoloji.Ikhwalithi yezinto ze-rPET ayizange ithinteke kabi.Amapharamitha anjengombala, i-viscosity yangaphakathi, ukugcwala kwamakhemikhali abalulekile kanye nokuba khona kokungcola okuguquguqukayo kungahlolwa kahle.Ikhwalithi yezinto ezikhiqiziwe kungenzeka ukuthi yathonywa izinga eliphezulu lento yokokufaka.Inqubo evaliwe yokuvuselela ibhodlela le-PET kusetshenziswa okuqukethwe kwe-rPET okungafika ku-75% yenzeka lapho kulandelwa inqubo ehlongozwayo, okubonisa ukuthi leli zinga lokuqukethwe okugaywe kabusha lingagcinwa unomphela ngaphandle kokuyekethisa ikhwalithi;