the invention relates to a novel biodegradable material prepared from pha and pla polymers , which can be used for manufacturing a blended product of pha and pla , and which can have accelerated biodegradation in a microorganic environment . the new product can be used for producing films , containers for solids and liquids , rigid or flexible packages , long - filament and short - fibre weaving , knitting and nonwoven fabrics , and composite products of fabrics , films and other materials by thermal forming , injection moulding or melt spinning . these blends also can have a long shelf life in a clean environment .