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用热塑性聚氨和微纤维化纤维素修饰的聚3-基酸盐:水解降解和热和机械性能

Adriana Nicoleta Frone¹, Denis Mihaela Panaitescu¹, Augusta Raluca Gabor¹

¹National Institute for Research & Development in Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania.

|January 8, 2025

概括

与微纤维化纤维素 (MC) 和聚氨 (PU) 混合聚3-基酸盐 (PHB) 提高了热稳定性和可加工性. 聚烯修饰剂还延迟了水解性降解,使这些复合材料对医学和工程用途具有前景.

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
生物材料是一种生物材料.

背景情况:

聚3-基酸盐 (PHB) 是一种可生物降解的聚合物,其热稳定性和可加工性受到限制.
将PHB与其他聚合物混合为增强其性能提供了一种可行的策略.

研究的目的:

为了提高PHB的热稳定性,化的可加工性和水解性降解耐受性.
探索PHB/PU/MC复合材料在医学和工程应用中的潜力.

主要方法:

聚3-基酸盐 (PHB) 与微纤维化纤维素 (MC) 和热塑性聚氨 (PU) 混合使用主批和直接混合方法.
分析了热稳定性,融粘度,结晶性,机械性能和水溶性降解.

主要成果:

PHB/PU/MC复合材料表现出更好的热稳定性 (高达13°C) 和增强的化可加工性.
添加PU延迟了水解性降解,观察到较低的质量损失.
复合材料显示存储模量略有下降,但保持了灵活性.

结论:

制造PHB/PU/MC复合材料的主批方法产生了具有增强热稳定性,可加工性和受控降解的材料.
这些PHB复合材料由于其改进的性能和可调节的降解特性,显示出各种医疗和工程应用的巨大潜力.

关键词:

弹性聚氨基氨酸的弹性聚氨酸水解性降解降解的降解方式纳米纤维素的纳米纤维素.聚基基酸盐的多基基酸盐扫描电子显微镜扫描电子显微镜热重力度分析分析的热重力度分析

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