摘要：The research about utilization of solid-liquid waste of tapioca flour industries as raw materials for creating biodegradable plastics, was carried out. The raw materials of biodegradable plastics obtained then leaded to polymerization process under themperature 80-90 0C for about 5-10 minutes. The created biopolymer was molded on a polyethilene cast then kept into oven under themperature 40-50 0C for about 2-3 days. The dry biodegradable plastic film got out for room themperature conditioning for about 2 days then it was disengaged from the polyetilene cast and ready for biodegradable test, delutable and mechanical properties. The yield show that produced plastic films were extreemly biodegradable for 1-2 weeks lifetimes in the land and delutable for 1 week lifetimes in the water. Besides, They had characteristic mechanical properties like strength 3.924 Pa for plastic film made of cassava‘s bark, pulp and cassava‘s bark extract. Elongation 13.966 % for plastic film made of cassava‘s bark, 9.217 % for plastic film made of cassava‘s pulp and 11.208 % for plastic film made of cassava‘s bark extract. As the comparative test, plastic film made of polyetilene had strength 10.464 Pa and elongation 4.583. Kata Kunci: solid-liquid waste, polimerization, biodegradable plastic film.
