先进的环氧聚合物复合材料设计:最大限度地提高断裂性和压电效应,使用核心外和酸粒子
Miray Yasar1,2, Berran Sanay3, Cormac Duffy3
1University College Dublin, School of Mechanical and Materials Engineering, Dublin 4, Ireland.
ACS omega
|October 13, 2025
概括
这项研究用核心外 (CSR) 和酸 (BaTiO3) 增强了环氧复合材料. 添加5%的CSR显著增加了断裂能量,而15%的CSR产生了最高的压电电压输出.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术 纳米技术
背景情况:
- 环氧树脂是各种工业中至关重要的多功能耐热聚合物.
- 定制环氧复合材料的性能对于先进的应用是必不可少的.
- 酸 (BaTiO3) 是压电应用的关键材料.
研究的目的:
- 调查核心外 (CSR) 和酸 (BaTiO3) 对环氧复合材料性能的影响.
- 优化环氧复合材料的热,机械和压电行为.
- 确定最佳的CSR分数,以提高断裂性和压电响应.
主要方法:
- 制造具有不同CSR分数 (0-25重量%) 和固定BaTiO3 (20重量%) 的环氧复合材料.
- 机械测试:拉力,单膝剪切,T-Peel强度,断裂性和断裂能量 (单边划痕曲试验).
- 使用动态机械分析 (DMA) 和压电输出电压测试进行热机械分析.
主要成果:
- 断裂能量从465到2213 J/m2的显著增加被观察到与5重%的CSR.
- 最高的开放电路输出电压为1.85V,实现了15%的CSR.
- CSR和BaTiO3添加剂有效地改变了机械,热和压电特性.
结论:
- 核心外 (CSR) 是环氧复合材料的有效硬化剂.
- 酸泰坦酸 (BaTiO3) 的加入增强了压电特性.
- 该研究成功地定制了环氧复合材料,以提高机械强度和压电性能.
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