ABSTRACT

A medical microneedle candidate material is prepared bases on polylactic acid (PLA), poly(ethylene glycol) (PEG), and low content of multi-walled carbon nanotubes (MWCNT) composites. A successive self-nucleation and annealing analysis was applied and the presence of PEG and the MWCNT ratio had a significant influence on the processability of PLA. The composites show much better tensile strength and elongation at break than pure PLA. Based on the good processability and the balance of high strength and superior toughness, the polymer composites can be potential material for medical microneedle.

中文翻译：

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具有改善的可加工性和机械性能的PLA / PEG / MWCNT复合材料

摘要

基于聚乳酸（PLA），聚乙二醇（PEG）和低含量的多壁碳纳米管（MWCNT）复合材料，制备了医用微针候选材料。进行了连续的自成核和退火分析，PEG的存在和MWCNT的比例对PLA的可加工性有重大影响。该复合材料显示出比纯PLA更好的拉伸强度和断裂伸长率。基于良好的加工性能以及高强度和优异韧性之间的平衡，聚合物复合材料可以成为医用微针的潜在材料。