Polylactic acid (H--[OCHCH3CO]n-OH) ine kugadzikana kwakanaka kwekupisa, tembiricha yekugadzira i170～230℃, uye ine yakanaka yekunyungudutsa.Inogona kugadziriswa nenzira dzakasiyana-siyana, senge extrusion, kuruka, biaxial kutambanudza, jekiseni kuvhuvhuta.Pamusoro pekuva biodegradable, zvigadzirwa zvakagadzirwa nepolylactic acid zvine biocompatibility yakanaka, kupenya, kujeka, kunzwa kwemaoko uye kuramba kupisa.Iyo polylactic acid (PLA) yakagadziriswa naGuanghua Weiye zvakare ine mamwe antibacterial uye murazvo unodzoreredza zvivakwa.Uye UV kuramba, saka ine huwandu hwakawanda hwekushandisa.Inogona kushandiswa semidziyo yekurongedza, fiber uye nonwovens, etc. Inonyanya kushandiswa mune zvipfeko (yemukati, outerwear), indasitiri (kuvaka, kurima, masango, papermaking), uye zvekurapa uye hutano minda.
Mabhenefiti makuru epolylactic acid ndeaya anotevera:
Polylactic asidhi (PLA) rudzi rutsva rwezvinhu zvinoora, zvakagadzirwa kubva kune sitarch mbishi zvinhu zvinokurudzirwa nezvinogadzirwazve chirimwa zviwanikwa (sechibage).Starch mbishi zvinhu zvinoiswa saccharified kuti iwane glucose, iyo inozoviriswa neglucose uye mamwe madhiri kuti abudise yakakwira-kuchena lactic acid, uyezve imwe molecular huremu polylactic acid inogadzirwa nemakemikari synthesis.Iine biodegradability yakanaka.Mushure mekushandiswa, inogona kuderedzwa zvachose nehutachiona muzvisikwa, uye pakupedzisira carbon dioxide nemvura inogadzirwa pasina kusvibisa nharaunda.Izvi zvinobatsira kwazvo kuchengetedzwa kwezvakatipoteredza uye zvinozivikanwa sechinhu chinochengetedza zvakatipoteredza.Mapurasitiki akajairika achiri kurapwa nekupisa uye kupisa, zvichiita kuti huwandu hukuru hwemagasi egreenhouse abudiswe mumhepo, nepo polylactic acid mapurasitiki anovigwa muvhu kuti ashatise, uye iyo carbon dioxide inogadzirwa inopinda zvakananga muvhu organic matter kana kunyudzwa. nembesa, uye haizorasirwi mumhepo.Hazvizokonzeri greenhouse effect.
Nguva yekutumira: Jan-06-2021