| abstract |
The invention discloses a thermoplastic starch master batch with high starch content and a preparation method thereof, comprising main materials and auxiliary materials. The main materials, in terms of mass percentage, include starch 80-85%, plasticizer A2-5% and a plasticizer Plasticizer B10-18%; the auxiliary materials are based on the quality of the main materials, including chain extender 0.5-1phr, lubricant 0.5-2phr, stabilizer 0.5-1.0phr, antioxidant 0.5-1.5phr, light stabilizer 0.1 ‑0.5phr, slip agent 0.5‑1phr, surfactant 0.5‑1phr, inorganic powder 2‑5phr. The invention prepares the thermoplastic starch with high starch content, and achieves the purpose of further reducing the cost, improving the performance of the fully biodegradable material, and improving the environmental protection performance of the fully biodegradable material. |