高性能聚乳酸/聚乙烯块-胺基混合基生物纳米复合材料,含有碳纳米管和/或有机粘土
Kartik Behera1, Bikash Mishra1, Mithilesh Yadav2
1Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan, ROC.
International journal of biological macromolecules
|August 29, 2024
概括
这项研究开发了高性能生物纳米复合材料,由聚乳酸和聚乙烯-块-胺混合物. 添加碳纳米管和有机粘土显著改善了机械性能,热稳定性和降低了易燃性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术纳米技术
背景情况:
- 聚乳酸 (PLA) 具有可取的特性,但有脆性和易燃性.
- 聚乙块胺 (PEBA) 可以与PLA混合,以增强其性能.
- 兼容剂对于改善PLA和PEBA等不混合的聚合物混合物之间的相互作用至关重要.
研究的目的:
- 使用PLA/PEBA混合物制造高性能生物纳米复合材料.
- 研究碳纳米管 (CNT) 和有机粘土 (30B) 对兼容PLA/PEBA混合物的特性的影响.
- 了解选择性填料定位对复合材料性能的影响.
主要方法:
- 基于PLA/PEBA混合物的复合材料的制造.
- 加入一个兼容剂 (ADR) 来增强PLA-PEBA相互作用.
- 添加碳纳米管 (CNTs) 和有机粘土 (30B) 单独和同时.
- 形态,机械性能,热稳定性,易燃性和电阻力的表征.
主要成果:
- 在PEBA域中分散的CNTs;30B在PLA/PEBA接口上定位.
- 在PLA的柔性 (高达252%) 和冲击强度上有显著的改进.
- 增强的热稳定性 (升高至16°C) 和降低可燃性,具有抗滴水性能.
- CNTs和30B促进了PLA和PEBA的结晶,CNTs显示出更高的核化效率.
- 由于网络形成,电阻降低了多达六个数量级,加上CNT.
结论:
- 与整洁的PLA相比,兼容的PLA/PEBA生物纳米复合材料具有优越的机械和热性能.
- 对CNTs和30B的选择性定位是财产增强的关键.
- 这些生物纳米复合材料为开发具有更好的性能特征的先进,可持续材料提供了有前途的途径.
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