3-基酸盐含量对聚3-基酸盐-3-基酸盐) 基材料的可加工性,核和混合能力的影响
Sara Alfano1, Estelle Doineau2, Coline Perdrier2
1Department of Chemistry, University of Rome La Sapienza, P.le Aldo Moro 5, 00185 Rome, Italy.
ACS omega
|July 15, 2024
概括
聚3-基酸-co-3-基酸) (P(3HB-co-3HV)) 生物聚合物
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 聚3-xybutyrate-co-3-hydroxyvalerate) (P(3HB-co-3HV)) 共聚物通过调整3xyvalerate (3HV) 含量来提供可调节的特性.
- 对于P(3HB-co-3HV) 的挑战包括高晶度,脆性和处理能力差.
- 关于3HV含量对P(3HB-co-3HV) 共聚合物可加工性的直接影响的研究有限.
研究的目的:
- 研究不同3HV含量对P(3HB-co-3HV) 共聚合物的加工和性能的影响.
- 探索添加剂,如核化剂和无形增塑剂对P(3HB-co-3HV) 处理的影响.
- 为改善这些可生物降解聚合物的可加工性提供见解.
主要方法:
- 合成了具有3,18和28mol%3HV的P(3HB-co-3HV) kopo 聚合物.
- 电影是使用挤出和随后的成型技术生产的.
- 特性包括热分析 (点) 和机械测试 (断裂时的延长).
主要成果:
- 增加3HV含量从3到28mol%显著降低了点从175°C到100°C.
- 机械性能,特别是断裂时的延长,从7%提高到120%,含有更高的3HV含量.
- 随着3HV含量增加,在P(3HB-co-3HV) 和无形聚合物之间观察到增强的混合性.
结论:
- 3HV含量是定制P(3HB-co-3HV) 共聚合物的可加工性和机械性能的一个关键因素.
- 更高的3HV含量导致更低的点和更好的灵活性,使加工更容易.
- 这些发现表明,有可能使用无形聚合物作为增塑剂,以进一步提高P3HB-co-3HV的可加工性.
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