Polylactic acid, inozivikanwawo sepolylactide, ndeyemhuri yepolyester.Polylactic asidhi (PLA) ipolymer yakashongedzwa nelactic acid seyakanyanya mbishi zvinhu.Izvo zvigadzirwa zvakawanda uye zvinogona kuvandudzwa.Iyo nzira yekugadzira yepolylactic acid haina kusvibiswa-isina, uye chigadzirwa chinogona kuve chakaora, chichiona kutenderera kwechisikigo, saka yakanakira girinhi polymer zvinhu.Polylactic acid (PLA) rudzi rutsva rwezvinhu zvinoora.Iyo inogadzirwa kubva kune sitarch zvinhu zvakatorwa kubva kune zvinogonekazve chirimwa zviwanikwa (sechibage) kuburikidza nekuvirisa, uye zvino chinoshandurwa kuita polylactic asidhi kuburikidza nepolymer synthesis.
Polylactic asidhi inokodzera kuvhuvhuta, kuumba jekiseni uye dzimwe nzira dzekugadzirisa.Zviri nyore kugadzirisa uye kushandiswa zvakanyanya.Inogona kushandiswa kugadzira midziyo yekudya yakasiyana-siyana, chikafu chakaiswa mupakiti, mabhokisi ekudya kwemasikati ekukurumidza, machira asiri akarukwa, machira emaindasitiri uye echivanhu kubva kuindasitiri kuenda kukushandiswa kwevanhu.Uye zvino inogona kugadziriswa kuita machira ekurima, machira ekuchengetedza hutano, maduta, zvigadzirwa zvehutsanana, machira ekunze anodzivirira UV, machira etende, mateti epasi, nezvimwe. Tarisiro yemusika inovimbisa.Zvinogona kuonekwa kuti maitiro ayo emagetsi uye emuviri akanaka.
Ndeapi mabhenefiti ePLA yezvinhu zvakasvibiswa?
1. Iine biodegradability yakanaka.Mushure mekushandiswa, inogona kuderedzwa zvachose nehutachiona muzvisikwa pasi pemamiriro ezvinhu chaiwo, uye pakupedzisira inogadzira carbon dioxide nemvura, pasina kusvibisa nharaunda.Iyo nzira yekurapa yemapurasitiki akajairwa ichiri kupisa uye kupisa, izvo zvinoita kuti huwandu hukuru hwemagasi egreenhouse abudiswe mumhepo, nepo polylactic acid (PLA) mapurasitiki anovigwa muvhu kuti aparare, uye iyo kabhoni dhaokisaidi inogadzirwa inopinda zvakananga mumhepo. ivhu organic matter kana inotorwa nemiti, iyo isingazobudisirwe mumhepo uye haizogadzira greenhouse effect.
2. Yakanaka michina uye yemuviri zvinhu.Zviri nyore kugadzirisa, kushandiswa zvakanyanya, uye ine tarisiro yakanaka kwazvo yemusika.
3. Kugarisana kwakanaka uye kudzikira.Inoshandiswawo zvakanyanya mune zvekurapa.
4. Polylactic acid (PLA) yakafanana nepetrochemical synthetic plastics muzvinhu zvakakosha zvemuviri uye inogona kushandiswa zvakanyanya kugadzira zvigadzirwa zvakasiyana-siyana zvekushandisa.Poly (lactic acid) (PLA) inewo kupenya kwakanaka uye kujeka, izvo zvakaenzana nefirimu rakagadzirwa nepolystyrene uye haigone kupihwa nezvimwe zvigadzirwa zvebiodegradable.
5. Polylactic acid (PLA) ine simba rakanakisisa rekugadzirisa uye ductility, uye inogonawo kugadzirwa nenzira dzakasiyana-siyana dzekugadzirisa.Poly lactic acid (PLA) inogona kugadzirwa kuita zvigadzirwa zvakasiyana zvinoenderana nezvinodiwa nemaindasitiri akasiyana.
6. Poly (lactic acid) (PLA) firimu ine mhepo yakanaka yemhepo, oksijeni permeability uye carbon dioxide permeability, uye inewo maitiro ekunhuhwirira kwekuparadzaniswa.Mavhairasi uye molds zviri nyore kubatanidza pamusoro peiyo biodegradable mapurasitiki, saka pane kusava nechokwadi nezvekuchengetedza nehutsanana.Nekudaro, polylactic asidhi ndiyo yega biodegradable mapurasitiki ane yakanakisa antibacterial uye anti mold zvimiro.
7. Kana PLA ichipiswa, kukosha kwayo kwekupisa kupisa kwakafanana neyepepa, iyo iri hafu yemapurasitiki echinyakare (akadai se polyethylene).Uye zvakare, haizombofa yakaburitsa nitrogen makomisheni, sulfide uye mamwe magasi ane chepfu.
Nguva yekutumira: Kubvumbi-11-2023