Iro bhegi rekurongedza rinoshatisa rinoreva kuparara, asi bhegi rekurongedza rinoparara rakakamurwa kuita mhando mbiri: inoshatisa uye inoshatisa zvizere.Degradable packaging mabhegi anoreva kuwedzera humwe huwandu hwekuwedzera (senge starch, modified starch kana imwe cellulose, photosensitizers, biodegraders, etc.) degenerate.Mabhegi ekurongedzerwa akaparara zvachose anoreva masaga epurasitiki ekurongedzerwa akaparara zvachose kuita mvura necarbon dioxide.Chinhu chikuru chechinhu ichi chinoparara zvachose ndechekugadziriswa kwechibage necassava kuita lactic acid, kana PLA.
Polylactic acid (PLA) inova biological matrix uye inogona kuvandudzwa biodegradable zvinhu.Kushandisa starch seyakabikwa, saccharification kuwana glucose, uyezve kuvirisa shuga uye mamwe madhiri kuwana yakakwira-kuchena lactic acid, uyezve synthesizing polylactic asidhi neimwe molecular huremu kuburikidza nemakemikari synthesis.Iine biodegradability yakanaka.Mushure mekushandiswa, inogona kuderedzwa zvachose nehutachiona muzvisikwa pasi pemamiriro ezvinhu chaiwo kuti ibudise carbon dioxide nemvura, iyo isingasvibise zvakatipoteredza.Inobatsira zvikuru kuchengetedza zvakatipoteredza uye chinhu chinobatsira kwezvakatipoteredza kune vashandi.
Parizvino, iyo huru-yakavakirwa bio-yakavakirwa zvinhu zveiyo yakaora yakazara yekurongedza bhegi inoumbwa nePLA + PBAT, iyo inogona kuparara zvachose mumvura uye carbon dioxide mumwedzi 3-6 pasi pemamiriro ecompost (60-70 degrees), pasina kusvibisa zvakatipoteredza.Sei uchiwedzera PBAT, inyanzvi yekugadzira zvinhu zvinochinjika, tsananguro inotevera ndeyokuti PBAT adipic acid, 1,4-butanediol, terephthalic acid copolymer, yakawandisa ndeye biodegradable synthetic aliphatic uye inonhuwirira polymer Taiwan, PBAT ine kuchinjika kwakanyanya, inogona kuita firimu extrusion, kuvhuvhuta kugadzirisa, kuvhara uye kumwe kugadzirisa.Chinangwa chekubatanidza PLA nePBAT ndechekuvandudza kuoma, biodegradability uye kuumbwa kwePLA.PLA nePBAT hazvienderane kune mumwe nemumwe, saka kusarudza akakodzera anowirirana kunogona kuvandudza zvakanyanya mashandiro ePLA.
Nguva yekutumira: Jun-30-2022