PROCESS FOR PRODUCING MODIFIED STARCH FOR USE AS BIODEGRADABLE PLASTICS

摘要

The present invention relates to a method for producing modified starch for biodegradable plastics, wherein the starch is added to a general-purpose plastic resin to inhibit starch moisture content, fine powder of starch particles, or the like. Unlike the method of preparing a master batch for degradable plastics by mixing with a general-purpose resin by simply replacing or modifying it with a hydrophobic group, the polymers having at least one functional group in starch are directly chemically bonded to both the starch and the resin. Because of its properties, it is possible to manufacture new modified starch with excellent compatibility with general-purpose resins such as polyethylene, polystyrene, and polypropylene, and to produce degradable plastics by mixing or using it alone with general-purpose resins. Apply the same denaturation method to carbohydrates That will.;The modified starch for plastics of the present invention is a useful method of improving biodegradability to prevent environmental pollution while maintaining the properties of plastics to the maximum.