紫外线触发的环氧烯酸结合剂,固化剂和光启动剂之间的相互作用和固化动力学
Ji-Min Choi1, Sang Jang1, Keon-Soo Jang1
1Department of Polymer Engineering, School of Chemical and Materials Engineering, The University of Suwon, Hwaseong 18323, Gyeonggi-do, Republic of Korea.
Polymers
|May 14, 2025
概括
这项研究探讨了具有光启动器的紫外线可固化环氧烯酸结合剂,以增强耐用应用的热和机械性能. 优化的系统显示高玻璃过渡温度和抗拉强度,非常适合先进的电子设备.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 紫外线可固化粘合剂对于先进制造至关重要.
- 光启动器在紫外线固化动力学和材料性能方面发挥着关键作用.
- 了解粘合剂 - 光启动器相互作用对于优化性能至关重要.
研究的目的:
- 调查不同光启动剂对紫外线固化环氧烯酸盐的热,机械和形态特性的影响.
- 为了将材料特性与光启动器结构和固化条件相关联.
- 评估这些UV可固化系统适合于诸如半导体包装等苛刻应用的适用性.
主要方法:
- 使用环氧烯酸矩阵和光启动器 (HMPP,TPO) 制造紫外线固化系统.
- 分析剩余的双键,玻璃过渡温度 (Tg) 和机械性能 (拉伸强度,Young的模量).
- 扫描电子显微镜 (SEM) 用于形态分析和骨折表面检查.
主要成果:
- 在紫外线辐射5秒内观察到残留双键的快速减少.
- 由于网络密度增加,玻璃过渡温度 (Tg) 随着固化时间的增加而增加 (例如,MyA-TPO: 67.3 °C至79.8 °C).
- MyA-HMPP配方表现出优异的机械强度 (63 MPa的抗拉强度,21 MPa的模量) 与强大的网络形成.
结论:
- 光启动器的选择显著影响了UV固化环氧烯酸盐的性能.
- 优化的配方表现出高热稳定性,机械完整性和耐裂性.
- 快速的紫外线固化和优越的性能使这些系统适合先进的应用,如系统包装 (SiP) 和3D集成.
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