聚乳酸是一种可生物降解的包装材料，研究β‐环糊精‐反式‐2‐己烯醛微胶囊的添加对聚乳酸薄膜性能的影响，包括机械性能、光学性能及形态变化。结果表明，随着添加比例的增大，薄膜拉伸性能、断裂伸长率以及透光率均逐渐降低，而 L *值升高，且通过样品扫描电镜（SEM ）结果发现，加入微胶囊的薄膜表面出现多个孔隙，出现不规则现象。
Polylactic acid was a biodegradable packaging material ;it was studying the effect that addingβ‐cyclo‐dextrin‐trans‐2‐hexenal microcapsules on performance ,including mechanical properties ,optical properties ,and morphological changes .The result shows that ,with increasing proportion of added ,the tensile properties of films ,elongation at break ,and the transmittance rate was gradually reduced ,while the L * value increased ,and it was observed by scanning electron microscopy (SEM) that adding microcapsules caused surface pores ,irregu‐lar phenomenon .
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