| abstract |
The invention provides a modified eucommia gum/polylactic acid thermoplastic elastomer with shape memory effect and a preparation method thereof. The present invention comprises the following raw materials in parts by weight: 10-90 parts of modified eucommia gum, 10-90 parts of polylactic acid, 0.1-2.5 parts of cross-linking agent, 0.2-2 parts of antioxidant and 0.2-1 part of auxiliary cross-linking agent; The present invention also provides a method for preparing the above modified eucommia gum/polylactic acid thermoplastic elastomer. The polylactic acid and the antioxidant are plasticized, the modified eucommia gum is added and mixed, and the crosslinking agent and the auxiliary crosslinking agent are added for dynamic crosslinking. , a thermoplastic elastomer. The present invention forms a bicontinuous phase structure through dynamic cross-linking reaction, and this unique phase structure improves the toughness of the thermoplastic elastomer, so that the thermoplastic elastomer has excellent impact resistance, elasticity and good shape memory performance. The fixation rate can reach 100%, the shape recovery rate can be as high as 95%, and it can be processed repeatedly and has wide application prospects. |