Polylactic acid (PLA) ndi thermoplastic aliphatic polyester.Lactic acid kapena lactide yofunikira popanga asidi a polylactic imatha kupezeka ndi nayonso mphamvu, kutaya madzi m'thupi ndi kuyeretsa zinthu zongowonjezwdwa.Acid ya polylactic yomwe imapezeka nthawi zambiri imakhala ndi makina abwino komanso opangira zinthu, ndipo mankhwala a polylactic acid amatha kuwonongeka mwachangu m'njira zosiyanasiyana atatayidwa.