Ingxowa yokupakisha eyonakaliswayo ithetha ukubola, kodwa isikhwama sokupakisha esinokonakala sahlulwe sibe ziindidi ezimbini: esonakala kwaye sinokonakala ngokupheleleyo.Iingxowa zokupakisha ezonakeleyo zibhekiselele ekongezeni inani elithile lezongezo (ezifana nesitashi, isitashi esilungisiweyo okanye enye i-cellulose, i-photosensitizers, i-biodegraders, njl. njl.) iyancipha.Iingxowa zokupakisha ezonakele ngokupheleleyo zibhekiselele kwiingxowa zokupakishwa zeplastiki ezonakaliswe ngokupheleleyo zibe ngamanzi kunye necarbon dioxide.Owona mthombo wezinto ezonakaliswa ngokupheleleyo kukulungiswa kombona kunye necassava kwi-lactic acid, okanye i-PLA.
I-Polylactic acid (i-PLA) yi-matrix yebhayoloji yenoveli kunye nemathiriyeli ehlaziyiweyo ye-biodegradable.Ukusebenzisa isitashi njengento ekrwada, i-saccharification ukufumana iswekile, kwaye emva koko i-glucose ivundisiwe kunye neentlobo ezithile zokufumana i-asidi ye-lactic ephezulu, kwaye emva koko udibanise i-polylactic acid kunye nobunzima obuthile bemolekyuli ngokusebenzisa i-chemical synthesis.Inokonakala kwezinto eziphilayo.Emva kokusetyenziswa, inokutshatyalaliswa ngokupheleleyo yi-microorganisms kwindalo phantsi kweemeko ezithile zokuvelisa i-carbon dioxide kunye namanzi, engayingcolisi indalo.Kuyinzuzo kakhulu ukukhusela okusingqongileyo kwaye yinto ehambelana nokusingqongileyo kubasebenzi.
Okwangoku, eyona nto iphambili ye-bio-based material ye-packaging bag enokonakala ngokupheleleyo iqulunqwe yi-PLA + PBAT, enokuchithwa ngokupheleleyo emanzini kunye ne-carbon dioxide kwiinyanga ezi-3-6 phantsi kweemeko zomgquba (ama-60-70 degrees), ngaphandle kokungcolisa i-compost. okusingqongileyo.Kutheni ukongeza i-PBAT, umenzi oqeqeshiweyo wokupakishwa okuguquguqukayo, le ngcaciso ilandelayo kukuba i-PBAT adipic acid, i-1,4-butanediol, i-terephthalic acid copolymer, kakhulu i-biodegradable synthetic aliphatic kunye ne-polymer enuka kamnandi yaseTaiwan, i-PBAT inokuguquguquka okugqwesileyo, inokwenza. ifilimu extrusion, processing ukuvuthela, ukutyabeka kunye nezinye processing.Injongo yokudibanisa i-PLA kunye ne-PBAT kukuphucula ukuqina, ukubola kwe-biodegradability kunye nokwakheka kwe-PLA.I-PLA kunye ne-PBAT azihambelani, ngoko ke ukukhetha i-compatibilizer efanelekileyo kunokuphucula kakhulu ukusebenza kwe-PLA.
Ixesha lokuposa: Jun-30-2022