The green leader of biodegradable particles, starch-based biodegradable plastics, is a kind of plastic products made from modified starch. Grafting reaction and mixing with other polymers can replace the general plastic industry. It can be used as packaging materials, shock-proof materials, plastic film, food containers, toys and so on.
The properties of starch are related to the relative molecular weight of starch, the length of amylopectin and the ratio of amylose to amylose. Experiments show that starch with high amylose content is more suitable for the preparation of plastics. The product has good mechanical properties. At present, the mechanical properties of starch plastics have basically achieved the standard of traditional plastics. However, due to the moisture absorption of starch itself, the mechanical properties of materials in humid environment will lead to serious water degradation, and the more starch content. Higher, more serious problems, some starch plastics can even be completely miscible with water.
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