In this paper, natural rubber (NR) and epoxidized natural rubber (ENR) are used as potential modifiers of thermoplastic potato starch (TPS). The mechanical and thermal properties, water absorption, and biodegradability were tested. The results show that ENR can be used as a compatibilizer for NR and TPS. As the rubber content (mainly ENR content) increases, the tensile strength of the material decreases and the elongation at break increases. With increasing ENR content, the changes in various properties of the material are unexpected. The development of the ternary blend enables a modified material to have an expected good mechanical property. Low rubber content blends exhibit high biodegradability. The developed material can be processed via compression molding. TPS, unvucanized NR, and ENR are all-natural green materials, so this provides new ideas for the development of environmentally friendly materials.

在本文中，天然橡胶（NR）和环氧化天然橡胶（ENR）被用作热塑性马铃薯淀粉（TPS）的潜在改性剂。测试了机械和热性能，吸水率和生物降解性。结果表明，ENR可以用作NR和TPS的增容剂。随着橡胶含量（主要是ENR含量）的增加，材料的抗张强度降低，断裂伸长率增加。随着ENR含量的增加，材料各种性能的变化是出乎意料的。三元共混物的开发使改性材料具有预期的良好机械性能。低橡胶含量的混合物具有高生物降解性。显影后的材料可以通过压缩成型进行加工。TPS，未硫化的NR和ENR是纯天然绿色材料，