Polylactic asidhi (PLA) imhando nyowani yebio-based uye inovandudzwa biodegradable material, iyo inogadzirwa kubva kune sitarch mbishi zvinhu zvinokurudzirwa nezvinogadzirwazve chirimwa zviwanikwa (sechibage, mufarinya, nezvimwewo). Starch raw material inocheneswa kuti iwane shuga, yozoviriswa kubva kuglucose uye mamwe madhiri kuburitsa yakakwira-kuchena lactic acid, uyezve kemikari synthesis nzira inoshandiswa kugadzira polylactic asidhi nehumwe huremu hwemamorekuru. Iine biodegradability yakanaka, uye inogona kuderedzwa zvachose nehutachiona muzvisikwa pasi pemamiriro ezvinhu chaiwo mushure mekushandiswa, pakupedzisira ichigadzira carbon dioxide nemvura, pasina kusvibisa zvakatipoteredza, iyo inobatsira zvikuru pakuchengetedza zvakatipoteredza uye inozivikanwa sechinhu chinochengetedza zvakatipoteredza.
Polylactic acid ine yakanaka kugadzikana kwekupisa, tembiricha yekugadzira i170 ~ 230 ℃, uye ine yakanaka yekunyungudutsa. Inogona kugadziriswa nenzira dzakasiyana-siyana, senge extrusion, spinning, biaxial kutambanudza, uye jekiseni blow molding. Pamusoro pekuva biodegradable, zvigadzirwa zvakagadzirwa nepolylactic asidhi zvine biocompatibility yakanaka, kupenya, kujeka, kunzwa kwemaoko uye kudzivirira kupisa, pamwe nekumwe kurwisa kwemabhakitiriya, kudzoreredza kwemurazvo uye kupikisa UV, saka zvinobatsira zvakanyanya. Inoshandiswa zvakanyanya semidziyo yekurongedzera, fiber uye nonwovens, nezvimwewo, parizvino inonyanya kushandiswa muzvipfeko (yemukati, zvipfeko zvekunze), indasitiri (kuvaka, kurima, masango, kugadzira mapepa) uye minda yekurapa nehutano.
Nguva yekutumira: Sep-19-2022