The effect of crystal region on the shape memory in polylactic acid matrix

The paper analyzed the effect of tensile conditions on the shape memory effect of PLA plates. The experimental results showed that the PLA plates presented excellent recovery ratio and recovery stress at lower stretch temperatures. In shape memory system of PLA, the crystal regions acted as network points significantly influenced the shape memory effect. The change of crystal structure of PLA plates at different strecthing conditions was investigated. The structural evolution model of lamallae during the stretching process were established.

Automated summary

This paper analyzed the influence of tensile conditions on the shape memory effect of PLA plates. The experimental results demonstrated that PLA plates exhibited excellent recovery ratio and recovery stress at lower stretch temperatures. The crystal regions in the shape memory system of PLA played a crucial role in shaping the memory effect. The study investigated the changes in the crystal structure of PLA plates under different stretching conditions and established a structural evolution model of lamallae during the stretching process.