超坚固的PA6/PP/ABS/SEBS混合物通过多相相容器的组合相容
Jianhui Yan1, Cuifang Wang1, Tongyu Zhang1
1Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
Materials (Basel, Switzerland)
|November 9, 2024
概括
新的兼容剂改善了用于塑料回收的多元组合聚合物混合物. 结合聚烯弹性体-移植- ((马氏无水化物-协同styrene) 和聚[styrene-b- ((乙烯-协同-丁烯) -b-styrene]-移植- ((马氏无水化物-协同-styrene) 显著提高机械性能.
科学领域:
- 聚合物科学与工程 聚合物科学与工程
- 材料科学 材料科学 材料科学
- 可持续的塑料回收利用 可持续的塑料回收利用
背景情况:
- 开发高性能多元聚合物混合物对于有效的废塑料机械回收至关重要.
- 创建这种混合物需要使用多相相容器来确保材料的完整性和性能.
- 现有的兼容化策略在实现最佳的界面粘附和相散时经常面临挑战.
研究的目的:
- 为了合成新型的兼容剂,聚烯弹性体-移植-基化物-协同styrene (POE-g-(MAH-co-St)) 和聚 [styrene-b-(乙烯-co-丁烯) -b-styrene]-移植-基化物-协同styrene (SEBS-g-(MAH-co-St)).
- 研究这些兼容剂在改善PA6/PP/ABS/SEBS四级混合物的性能方面的有效性.
- 了解界面相互作用和兼容混合物的增强机械性能之间的关系.
主要方法:
- 在聚烯弹性体 (POE) 和聚[styrene-b-(乙烯-co-butylene) -b-styrene] (SEBS) 上,将化无化物 (MAH) 和烯 (St) 接种在化物上,以制造双单体接种的兼容剂.
- 合成的兼容剂与PA6/PP/ABS/SEBS四度混合物的融混合.
- 由此产生的混合物的相分布,界面形态和机械性能 (断裂强度,延长,冲击强度) 的表征.
主要成果:
- 两种POE-g-(MAH-co-St) 和SEBS-g-(MAH-co-St) 兼容器都有效地促进了相位分布,并减少了分散的相位大小.
- 同时添加10%重%POE-g- ((MAH-co-St) 和10%重%SEBS-g- ((MAH-co-St) 导致显著改善:与非兼容混合物相比,骨折强度增加了106%,骨折延伸增加了593%,冲击强度增加了823%.
- 观察到分层的界面相互作用,促进了逐渐的能量消散,并增强了整体的机械性能.
结论:
- 开发的POE-g-{MAH-co-St}和SEBS-g-{MAH-co-St}兼容剂在提高多元组合聚合物混合物的性能方面非常有效.
- 改进的界面相互作用的协同效应和弹性体兼容剂的强化效应导致同时提高强度和性.
- 这些发现为开发高性能回收塑料材料提供了有希望的途径.
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