Polylactic acid (H-[OCHCH3CO]n-OH) muaj qhov zoo thermal stability, ua haujlwm kub yog 170 ~ 230 ℃, thiab nws muaj qhov hnyav hnyav.Nws tuaj yeem ua tiav ntau txoj hauv kev, xws li extrusion, spinning, biaxial stretching, Txhaj tshuab moulding.Ntxiv rau qhov yog ...
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