Pál Patrik Dézsi, Z. Heiner, Gábor Gulyás, Katalin Pappné Sziládi
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引用次数: 0
摘要
本研究对一种乳酸基生物降解聚合物（聚乳酸）进行了化学改性，并研究了其材料机械性能的变化。用纳米压痕仪测定了硬度和弹性模量。改性聚乳酸与未改性对照组进行了比较。每组包含 5 个不同的样品，通过 t 检验来比较两组之间硬度和弹性模量的平均差异。结果表明，改性聚丙烯在硬度和弹性模量方面都具有统计学意义。处理后的样品结构也变得更加不均匀。与对照组相比，改性聚乳酸的硬度和弹性模量都有所降低。
The mechanical properties of biodegradable modified polymer packaging
In this research, a lactic acid-based biodegradable polymer (polylactic acid, PLA) was chemically modified and the mechanical material property changes were studied. The hardness and elastic modulus were determined with a nanoindentation instrument. The modified PLA was compared to the unmodified control group. Each group contained 5 different samples and t-test was performed to compare the mean difference of the hardness and elastic modulus between the two groups. A statistically significant result was obtained both in the hardness and elastic modulus due to the modification. The treated sample structure has become more inhomogeneous as well. The elastic modulus of the modified PLA reduced in its hardness and elastic modulus compared to the control PLA.
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