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通过聚合物混合物提高PLA的灵活性和水性:电与溶剂造

Qi-Hong Weng¹, Ming-Hsien Hu^2,3, Ji-Feng Wang¹

¹Department of Mechanical Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.

|April 28, 2025

概括

电增强了聚乳酸 (PLA) 混合物的灵活性和水性,克服了脆性和反水性的限制. 与溶剂造相比,这种方法提高了机械性能,为先进的材料应用提供了无可塑化的方法.

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
生物材料工程生物材料工程

背景情况:

聚乳酸 (PLA) 具有可取的特性,如生物降解性和生物相容性,但患有脆性和疏水性.
将PLA与聚烯酸 (PCL) 混合可以提高灵活性,而聚乙烯氧化物 (PEO) 可以增强水友性.
传统方法通常使用PEO作为塑化剂,但本研究探讨了PEO作为主要混合成分.

研究的目的:

通过将其与PCL和PEO混合来解决PLA的局限性.
调查电与溶剂造对PLA及其混合物的影响.
为了评估制造的PLA混合膜的机械和表面性能.

主要方法:

使用电和溶剂造制造薄膜.
使用二甲 (DCM) /二甲基形式胺 (DMF) 混合物制备聚合物溶液.
使用FTIR,XRD,DSC,SEM,AFM,单轴拉伸测试和水接触角度测量进行表征.

主要成果:

与溶剂造薄膜相比,电PLA薄膜在断裂时表现出优越的延长和最终的强度.
在保持模量的同时,PLA/PCL电膜提高了灵活性.
通过电加工的PLA/PEO混合物表现出增强的水友性,并保持机械完整性,与溶剂造对应物不同.

结论:

电是一种优越的PLA混合物加工方法,由于纤维结构和压制相位分离,可以提高灵活性和机械性能.
这项研究表明,通过电成功制造了相隔PLA/PEO混合物,并使用电进行机械完整性.
电提供了一种有效的,无塑化剂的途径,以生产具有提高灵活性和水友性的PLA混合膜.

关键词:

混合电制品的混合电制品结晶性结晶性是指结晶性.由蒸发引起的相位分离.机械性能机械性能机械性能非溶剂诱导的相位分离不是溶剂诱导的.溶剂混合混合溶剂混合溶剂混合物的溶剂混合物.

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