用金属填充剂修改环氧化物 - 在水性环境中老化后的机械性能
Anna Rudawska1,2, Jakub Szabelski1,2, Mariaenrica Frigione2
1Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin, Poland.
Materials (Basel, Switzerland)
|November 25, 2023
概括
具有锡铜填充剂的环氧化合物在水中老化后显示出更高的压力强度. 低矿化水老化通常导致这些金属填充剂修饰环氧材料的最佳机械性能.
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
- 机械工程 机械工程
背景情况:
- 环氧树脂由于其优良的机械性能而被广泛使用.
- 了解它们在水性环境中的长期性能对于各种应用至关重要.
- 用金属填充剂进行修改可以改变环氧性质,但老化效应需要研究.
研究的目的:
- 用合金或锡铜填充剂修改的环氧化合物的机械性能进行比较分析.
- 评估不同水性环境中老化对这些改性环氧化合物的影响.
- 为了确定填充剂类型和水矿化对压力强度的影响.
主要方法:
- 使用基于Bisphenol A的环氧树脂,三乙烯甲胺固化剂和合金或锡铜填充剂制备了环氧化合物.
- 样品在四种不同的水性环境 (低,中,高矿化和糖溶液) 中老化了1,2个月和3个月.
- 压力强度测试根据ISO 604:2002标准进行.
主要成果:
- 在低矿化水中老化的环氧样品通常表现出最高的平均压力强度.
- 与合金填充剂相比,锡铜 (CuSn10P) 填充剂的平均压力强度结果始终更高.
- 老化持续时间和水成分显著影响了改性环氧化合物的机械性能.
结论:
- 锡青铜是一种优质的填充剂,可增强经氧树脂的压力强度,经过水性老化.
- 低矿化水环境对这些改性环氧系统的机械完整性不利.
- 这些发现为选择适当的环氧配方和填充剂提供了宝贵的见解,用于涉及长时间暴露在水中的应用.
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