聚D-丙交酯/聚L-丙交酯共混物的立体复合物在技术规模上的形成

IF 1.1 4区工程技术 Q4 ENGINEERING, CHEMICAL

International Polymer Processing Pub Date : 2023-06-14 DOI:10.1515/ipp-2022-4296

Boris Marx, Lars Bostan, A. Herrmann, E. Schmidt, M. M. Murshed

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引用次数: 1

摘要

摘要市场上可买到的聚乳酸（PDLA）和聚乳酸（PLLA）都是在技术规模上混合的。使用特殊的工艺控制，两种材料在双螺杆挤出机中以2的质量通过率混合 kg/h，得到立体复合物聚（-丙交酯）（PLA）共混物。热分析表明只有一个熔点在235 °C。拉曼光谱和X射线粉末衍射图都显示了立体配合物PLA的特征。有了这种共混物的可用量，可以通过熔融纺丝开发出具有技术强度的PLA纤维。因此，生物聚合物PLA的应用可以扩大，从而取代传统塑料来保护资源和环境。

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Stereocomplex formation of a poly(D-lactide)/poly(L-lactide) blend on a technical scale

Abstract Poly(D-lactide) (PDLA) and poly(L-lactide) (PLLA), both available on the market, are blended on a technical scale. Using a special process control, the two materials are blended in a twin-screw extruder at a mass throughput rate of 2 kg/h, resulting in a stereocomplex Poly(-lactide) (PLA) blend. Thermal analysis indicates only one melting point at 235 °C. Both the Raman spectra and X-ray powder diffraction patterns show characteristic features for the stereocomplex PLA. With the available amount of this blend PLA fibers with technical strengths can be developed by melt spinning. As such, the application of the biopolymer PLA can be expanded, leading to substitute the conventional plastics for conserving both the resources and the environment.

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来源期刊

International Polymer Processing 工程技术-高分子科学

CiteScore

2.20

自引率

7.70%

发文量

审稿时长

6 months

期刊介绍： International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.