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Novel bioresource‐based poly(3‐Hydroxybutyrate‐co‐4‐Hydroxybutyrate)/poly(LacticAcid) blend fibers with high strength and toughness via melt‐spinning
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-22 , DOI: 10.1002/app.48956 Ziyang Chen 1 , Zuoxian Zhao 1 , Jianhan Hong 2 , Zhijuan Pan 3
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-22 , DOI: 10.1002/app.48956 Ziyang Chen 1 , Zuoxian Zhao 1 , Jianhan Hong 2 , Zhijuan Pan 3
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Novel biodegradable blend fibers based on the biomaterials poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate) (P3HB4HB) and poly(lacticacid) (PLA) were successfully prepared by combining melt spinning and hot drawing. The results showed that the commixture could continuous and stable spin for a P3HB4HB ratio of 30–35 wt% and winding speed of 20–30 m/min. The thermal stability of the P3HB4HB/PLA blend fiber was increased, as determined by thermogravimetric analysis. The crystallinity degree of the P3HB4HB/PLA blend fibers increased with increasing the P3HB4HB content. The addition of PLA resulted in a low cold crystallization temperature and diminutive size of the lamellar stacks, which would be favorable for the enhancement of the mechanical properties of the blend fiber, when the P3HB4HB content was 30–35 wt%. The P3HB4HB/PLA composite fiber was one type of high‐strength and high‐toughness fiber, with 1 GPa breaking stress and over 80% strain at break. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48956.
中文翻译：
新型生物资源基聚（3-羟基丁酸酯-co-4-羟基丁酸酯）/聚（LacticAcid）混纺纤维具有高强度和高韧性，可通过熔纺
通过熔融纺丝和热拉伸成功地制备了基于生物材料聚（3-羟基丁酸酯-co-4-羟基丁酸酯）（P3HB4HB）和聚乳酸（PLA）的新型可生物降解共混纤维。结果表明，在P3HB4HB比为30-35 wt％，卷绕速度为20-30 m / min时，该混合物可以连续稳定地旋转。通过热重分析确定，P3HB4HB / PLA共混纤维的热稳定性提高了。P3HB4HB / PLA共混纤维的结晶度随P3HB4HB含量的增加而增加。当P3HB4HB含量为30-35 wt％时，添加PLA会导致较低的冷结晶温度和较小的层状堆叠尺寸，这有利于增强混纺纤维的机械性能。P3HB4HB / PLA复合纤维是一种高强度高韧性纤维，断裂应力为1 GPa，断裂应变超过80％。©2020 Wiley Periodicals，Inc. J.Appl。Polym。科学2020，137，48956。
更新日期：2020-01-22
中文翻译：
新型生物资源基聚（3-羟基丁酸酯-co-4-羟基丁酸酯）/聚（LacticAcid）混纺纤维具有高强度和高韧性，可通过熔纺
通过熔融纺丝和热拉伸成功地制备了基于生物材料聚（3-羟基丁酸酯-co-4-羟基丁酸酯）（P3HB4HB）和聚乳酸（PLA）的新型可生物降解共混纤维。结果表明，在P3HB4HB比为30-35 wt％，卷绕速度为20-30 m / min时，该混合物可以连续稳定地旋转。通过热重分析确定，P3HB4HB / PLA共混纤维的热稳定性提高了。P3HB4HB / PLA共混纤维的结晶度随P3HB4HB含量的增加而增加。当P3HB4HB含量为30-35 wt％时，添加PLA会导致较低的冷结晶温度和较小的层状堆叠尺寸，这有利于增强混纺纤维的机械性能。P3HB4HB / PLA复合纤维是一种高强度高韧性纤维，断裂应力为1 GPa，断裂应变超过80％。©2020 Wiley Periodicals，Inc. J.Appl。Polym。科学2020，137，48956。
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