Introduction to starch-based plastics

Starch-based plastics are made of natural starch as raw material, modified and grafted, mixed with other mixtures or monomers, and processed by traditional thermoplastic machines such as extrusion and injection molding. The plant resources containing starch-based plastics are abundant and geographically distributed, and the cost is low. However, a single starch-based plastic has problems such as brittleness, poor mechanical properties, high viscosity, and easy absorption of water, which limits its need for both mechanical strength and thermal stability. Applications in the plastics industry.

In practical applications, it is generally necessary to physically blend or chemically modify starch to improve its thermoplastic processing properties. There are many types of starch-based composite degradable plastics, a long history of research and development, a large market, and good application prospects. It can be used to replace conventional plastics such as polyethylene and polypropylene and is used in the fields of disposable tableware, food containers, packaging materials, plastic films, cushioning materials, toys, etc.