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The effect of different compatibilizers on the properties of prepared poly(lactic acid)/polyurethane nanofibers by electrospinning
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-07-02 , DOI: 10.1177/15280837211029051
Sema Samatya Yilmaz 1 , Ayse Aytac 1, 2
Affiliation  

In this study, the poly(lactic acid) (PLA)/polyurethane (PU) nonwoven mats have been successfully fabricated by electrospinning from PLA/PU (50:50 w/w) blended solutions with/without compatibilizer. The influence of the compatibilizers which are called POSS Amic Acid Isobutyl (AAI), Tetra Silanol Phenyl POSS (TSP) and Joncryl (JO) on the characteristic properties of PLA/PU nanofibers has been investigated. The types of compatibilizer used in this paper were studied for the first time in the literature for PLA/PU blend nanofibers. The nanofibers were characterized with scanning electron microscope, fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, contact angle test, and mechanical analysis. The electrospun mat which has the smoothest fiber surfaces, thinnest fiber diameter with 812 nm and a superhydrophobic surface structure with an angle of 154° was obtained by using AAI. The fabricated nanofiber by using JO has been seen having the highest strength value with 3.5 MPa and the highest crystallinity ratio with 20.1%. The highest elongation value with 51.9% was obtained for the nanofiber by using TSP. When the 5% weight loss temperature value of all PLA/PU nanofibers was compared, it was noted that the JO added nanofiber has the highest temperature durability with 292.16 °C. Also, the Tm value of all PLA/PU nanofibers has been resulted at about 155 °C like of pure PLA nanofiber. It is expected that thin and flexible biodegradable PLA/PU nanofibers with good physical and mechanical properties can be used in areas such as water repellent coating material, food packaging.



中文翻译:

不同增容剂对静电纺制备聚乳酸/聚氨酯纳米纤维性能的影响

在这项研究中,聚乳酸 (PLA)/聚氨酯 (PU) 非织造垫已通过静电纺丝成功地由 PLA/PU (50:50 w/w) 混合溶液制成,有/无增容剂。研究了称为 POSS 酰胺酸异丁基 (AAI)、四硅烷醇苯基 POSS (TSP) 和 Joncryl (JO) 的增容剂对 PLA/PU 纳米纤维的特性的影响。本文中使用的增容剂类型是首次在文献中研究了 PLA/PU 共混纳米纤维。通过扫描电子显微镜、傅里叶变换红外光谱、差示扫描量热法、热重分析、接触角测试和力学分析对纳米纤维进行了表征。具有最光滑纤维表面的电纺毡,°是通过使用 AAI 获得的。使用 JO 制备的纳米纤维具有最高的强度值,为 3.5 MPa,结晶度最高,为 20.1%。通过使用 TSP 获得了纳米纤维的最高伸长率为 51.9%。当比较所有 PLA/PU 纳米纤维的 5% 失重温度值时,注意到加入 JO 的纳米纤维具有最高的温度耐久性,为 292.16 °C。此外,所有 PLA/PU 纳米纤维的 T m值都与纯 PLA 纳米纤维一样在 155 °C 左右产生。预计具有良好物理和机械性能的薄而柔韧的可生物降解PLA/PU纳米纤维可用于拒水涂层材料、食品包装等领域。

更新日期:2021-07-02
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