Current plastic waste causing environmental problems, more Plastics that are biodegradable is one method that can help resolve problems with plastic waste. This research studies the preparation of biodegradable film from thermoplastic starch (TPS), which is prepared from tapioca starch and poly (lactic acid) (PLA) by allowing compatible is enough League vinyl acetate vinyl alcohol-co-Lee enough P (VAc-co-VA), which hydrolyzes the SIM Lite satang percentage because sop.Different phakhua of TPS and TPS, and PLA PLA experiments have been mixed in the mixer off (Internal Mixer) at different ratios, then forming a thin film by thermal compression. Then analyze the physical properties, mechanical properties American heat and water resistance properties from experiments found that the TPS and the PLA can be mixed up in every aspect when P (VAc-co-VA), which is the best ratio of TPS: PLA (80:20), the mechanical properties Young's Modulus values show increased. Thermogravimetric Tg and Tm values are reduced, demonstrate that increased after the ins P (VAc-co-VA), however, found that the ratio of film still has a low water resistance properties are. Thus the degradation film production by using TPS and the PLA as raw material, this seems to be useful for applications in industrial production, packaging, biodegradable.
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