聚烯混合物具有持久的疏水性和增强的机械性能,基于POSS和基改性聚法甲基烯酸
Xinchao Li1, Ping Wang1, Zhiyong Wang2
1Green Preparation and Recycling Laboratory of Functional Polymeric Materials. School of Science, Food Microbiology Key Laboratory of Sichuan Province, School of Science, Xihua University, Chengdu, 610039, China.
Macromolecular rapid communications
|September 3, 2024
概括
这项研究开发了一种创新方法,用于制造耐用的疏水性聚烯 (PP) 混合物. 经过修改的材料在极端条件下表现出增强的机械性能和持续的疏水性.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 在聚烯 (PP) 上实现持久的表面功能化是具有挑战性的.
- 由于粘合力差,在极端条件下,低表面能量的涂层往往会失效.
研究的目的:
- 开发一种简单的策略,使聚烯具有持久的疏水性和增强的机械性能.
- 为了研究多面寡合基丝素 (POSS) 和基侧组修饰对PP混合的多甲基酸 (PFP) 的影响.
主要方法:
- 将多面体的寡合性丝素 (POSS) 和基侧组移植到多甲酸 (PFP) 上.
- 用聚烯 (PP) 融化混合修改后的PFP.
- 评估表面性能,机械强度 (破裂时延长) 和在各种极端条件下 (化学,物理,热,紫外线) 的耐用性.
主要成果:
- POSS诱导的表面分离和疏水性.
- 在拉力测试期间形成的微纤维增强了机械强度.
- 基侧组与PP段纠在一起,导致交叉连接.
- 由于交叉连接和POSS导向,断裂时的延长率增加了高达974%.
- 该混合物表现出持久的疏水性,可以抵御带剥离,洗,摩擦和暴露在强酸,和酒精中.
- 耐热和抗紫外线的性能显著提高.
结论:
- 开发的战略成功地使PP具有持久的疏水性.
- 经过修改的PP混合物表现出大大增强的机械性能,特别是破裂时的延长.
- 这种方法为创造高性能功能化聚烯材料提供了一个有希望的途径.
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