有效的制备和PBAT/粉共价的特性可用于复合网络复合材料
Xin Wang1, Binbo Wang2, Rong Huang1
1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, PR China.
International journal of biological macromolecules
|February 12, 2025
概括
这项研究使用一种新的链断交联结方法开发了高性能聚 (丁烯基酸盐-联合甲酸盐) (PBAT) /粉复合材料. 由此产生的共价可适应网络 (CAN) 复合材料表现出增强的机械性能,耐溶剂性和气体屏障性能,以及出色的可回收性.
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
- 可持续材料 可持续材料
背景情况:
- 聚乙烯基合甲酸盐 (PBAT) /粉复合材料提供生物降解性和成本效益.
- 在提高PBAT/粉复合材料的机械性能,耐溶剂性和气体屏障性能方面仍然存在挑战.
研究的目的:
- 开发一种用于制备高性能PBAT/粉复合材料的新策略.
- 为了提高机械强度,溶剂抗性,爬行抗性和气体屏障性能.
- 通过一种绿色和高效的方法,实现出色的再加工可回收性.
主要方法:
- 采用了反应挤出工艺,涉及链断交联策略.
- 用于通过转化破坏PBAT链的使用二乙醇,增强与粉的兼容性.
- 通过将改性PBAT和粉与 styrene-maleic anhydride copolymer (SMA) 反应而形成共价适应网络 (CAN) 复合材料.
主要成果:
- 在PBAT和未经修改的粉之间实现了卓越的兼容性,由FTIR和SEM证实.
- 开发了具有出色的热性能,强度,模量,爬行抵抗,溶剂抵抗和气体屏障性能的CAN复合材料.
- 通过转化证明了快速的应力松和出色的再加工可循环利用性.
结论:
- 链断交链策略为高性能PBAT/粉CAN复合材料提供了一个简单,绿色和高效的途径.
- 开发的方法为增强聚合物/填料复合材料的各种特性提供了一个有前途的方法.
- 由此产生的复合材料显示出适用于要求卓越机械和屏障性能且可回收的应用的潜力.
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