Polylactic acid (PLA) imhando itsva yezvinhu zvinoora zvakavakirwa pazvipenyu uye zvinodzokororwa, izvo zvinogadzirwa kubva muzvishandiso zvestarch zvinokurudzirwa nezviwanikwa zvezvirimwa zvinodzokororwa (senge chibage, cassava, nezvimwewo). Zvinhu zvisina kuchena zvestarch zvinobviswa kuti zviwane glucose, uye zvinozoviriswa kubva muglucose nemamwe marudzi kuti zvigadzire lactic acid yakachena kwazvo, uye nzira yekugadzira makemikari inoshandiswa kugadzira polylactic acid ine huremu hwakati. Ine kugona kuora kwezvipenyu zvakanaka, uye inogona kuora zvachose netupukanana twuri muzvisikwa pasi pemamiriro chaiwo mushure mekushandiswa, pakupedzisira ichigadzira carbon dioxide nemvura, pasina kusvibisa nharaunda, iyo inobatsira zvikuru pakuchengetedza nharaunda uye inozivikanwa sechinhu chisina njodzi kune nharaunda.
Asidhi yepolylactic ine kugadzikana kwakanaka kwekupisa, tembiricha yekugadzirisa ndeye 170~230℃, uye ine kusimba kwakanaka kwe solvent. Inogona kugadziriswa nenzira dzakasiyana-siyana, dzakadai se extrusion, spinning, biaxial stretching, uye injection blow molding. Pamusoro pekuora, zvigadzirwa zvakagadzirwa nepolylactic acid zvine kusimba kwakanaka kwe biocompatibility, gloss, transparent, hand feel uye heat resistance, pamwe nekusimba kwemamwe mabhakitiriya, kunonoka kwemoto uye kusimba kwe UV, saka zvinobatsira zvikuru. Inoshandiswa zvakanyanya sezvinhu zvekurongedza, fibers uye nonwovens, nezvimwewo, parizvino inonyanya kushandiswa muzvipfeko (zvipfeko zvemukati, zvipfeko zvekunze), maindasitiri (kuvaka, kurima, masango, kugadzira mapepa) uye minda yekurapa nehutano.
Nguva yekutumira: Gunyana-19-2022
