I-Polylactic acid (PLA) uhlobo olusha lwezinto ezibolayo ezisekelwe ku-bio futhi ezivuselelekayo, ezenziwe ngezinto zokusetshenziswa kwesitashi eziphakanyiswa yimithombo yezitshalo ezivuselelekayo (njengommbila, umdumbula, njll.). Izinto zokusetshenziswa kwesitashi ziyasuswa ukuze kutholakale i-glucose, bese zivundiswa kusuka ku-glucose kanye nezinhlobo ezithile ukuze kukhiqizwe i-lactic acid emsulwa kakhulu, bese kusetshenziswa indlela yokwenziwa kwamakhemikhali ukuhlanganisa i-polylactic acid enesisindo esithile sama-molecule. Inokubola okuhle, futhi ingabola ngokuphelele yizinto ezincane zemvelo ngaphansi kwezimo ezithile ngemva kokusetshenziswa, ekugcineni ikhiqize i-carbon dioxide namanzi, ngaphandle kokungcolisa imvelo, okuzuzisa kakhulu ekuvikeleni imvelo futhi kubhekwa njengento enobungani nemvelo.
I-polylactic acid inokuqina okuhle kokushisa, izinga lokushisa lokucubungula lingu-170 ~ 230℃, futhi inokumelana okuhle kwe-solvent. Ingacutshungulwa ngezindlela ezahlukene, njengokukhipha, ukuphotha, ukwelula i-biaxial, kanye nokubumba i-injection blow. Ngaphezu kokubola, imikhiqizo eyenziwe nge-polylactic acid inokuhambisana okuhle kwe-bio, ukukhanya, ukucaca, ukuzwa kwesandla kanye nokumelana nokushisa, kanye nokumelana namagciwane athile, ukuvimbela ilangabi kanye nokumelana ne-UV, ngakho-ke iwusizo kakhulu. Isetshenziswa kabanzi njengezinto zokupakisha, imicu kanye ne-nonwovens, njll., okwamanje isetshenziswa kakhulu ezingutsheni (izingubo zangaphansi, izingubo zangaphandle), imboni (ezokwakha, ezolimo, ezamahlathi, ezokwenza amaphepha) kanye nezinkambu zezokwelapha nezempilo.
Isikhathi sokuthunyelwe: Septhemba-19-2022
