PREPARATION METHOD OF FULLY DEGRADABLE POLYGLYCOLIC ACID COMPOSITE PACKAGING MATERIALS

The present disclosure provides a fully degradable Polyglycolic acid (PGA) composite packaging material comprises， by weight part， the following: PGA， polycaprolactone， poly(L-lactide-ε-caprolactone)， anti-blocking agent， slipping agent， flexibilizer， waterproofing agent， chitosan， reinforced fibers and the like. The present disclosure further provides a preparation method of the fully degradable modified polyglycolic acid composite packaging materials. The present disclosure has the following advantages. The packaging material of the present disclosure has good microbial degradation and hydrolysis. With complete biodegradation， it would result in end-products， water and carbon dioxide， which are environmentally friendly， non-toxic and pose no threat to human- and animal-health. The packaging material of the present disclosure has good mechanical properties， and can fully meet various application requirements of packaging materials. Inexpensive and environmental pollution-free fillers can be added without influence on mechanical properties. The cost can be effectively reduced. The preparation process is simple.