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首页> 外文期刊>Japanese journal of applied physics >Property Measurement and Processing Parameter Optimization for Polylactide Micro Structure Fabrication by Thermal Imprint
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Property Measurement and Processing Parameter Optimization for Polylactide Micro Structure Fabrication by Thermal Imprint

机译:热压印法制备聚乳酸微结构的性能测量及工艺参数优化

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摘要

Polylactide (PLA) is a thermoplastic polymer derived from renewable resources. In this study, we measured the material properties and forming conditions of PLA under the thermal imprint process. The properties of PLA were investigated under various imprint temperatures and imprint times. The results show that increasing the imprint temperature and imprint time results in a progressive rise in Young's modulus and a decrease in elongation at break. Furthermore, if the imprint time exceeds 10min, crystallinity at imprint temperatures 90 and 110℃ increases visibly. Measurements of rheology properties was performed and the results show viscoelastic behaviors which are combination of irreversible viscous flow and reversible elastic deformation at the temperature of 110-180℃. The forming conditions of PLA micro structures under thermal imprint technology were studied based on the Taguchi method. The experimental results show that the transfer rate was enhanced to 96.3%. This study therefore contributes to research on the fabrication of biomedical devices using biodegradable polymers produced by the thermal imprint process.
机译:聚丙交酯(PLA)是衍生自可再生资源的热塑性聚合物。在这项研究中,我们测量了热压印过程中PLA的材料特性和形成条件。在各种压印温度和压印时间下研究了PLA的性能。结果表明,增加压印温度和压印时间会导致杨氏模量的逐步升高和断裂伸长率的降低。此外,如果压印时间超过10分钟,则在90和110℃的压印温度下的结晶度会明显增加。进行了流变学性质的测量,结果表明在110-180℃的温度下粘弹性是不可逆的粘滞流动和可逆的弹性变形的结合。基于Taguchi方法研究了热压印技术下PLA微结构的形成条件。实验结果表明,转移率提高到96.3%。因此,这项研究有助于使用通过热压印工艺生产的可生物降解聚合物制造生物医学设备。

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  • 来源
    《Japanese journal of applied physics》 |2013年第6issue2期|06GJ09.1-06GJ09.7|共7页
  • 作者单位

    Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;

    Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;

    Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan;

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