基于环氧 (甲基) 烯酸盐的热和紫外线启动可固化涂层系统
Paulina Bednarczyk1, Konrad Walkowiak2, Izabela Irska2
1Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów 42 Avenue, 71-065 Szczecin, Poland.
Polymers
|December 23, 2023
概括
这项研究引入了用于可光固化涂料的新型环氧 (甲基) 烯酸树脂,结合了UV和热固化. 这些树脂克服了传统紫外线固化对3D表面和难以进入区域的局限性.
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
- 涂料技术 涂料技术
背景情况:
- 光聚合具有优势,但在固化3D物体和阴影区域方面面临挑战.
- 现有的可光固化树脂在复杂几何形状上难以完全固化.
- 需要先进的树脂,结合紫外线和热固化机制.
研究的目的:
- 合成新型环氧 (甲基) 烯酸树脂,用于改进可光固化涂料.
- 研究这些双功能树脂的固化机制和特性.
- 开发一种混合紫外线/热固化系统,以提高涂层性能.
主要方法:
- 通过将/甲酸与环氧树脂 (DGEBA,CHDMDE,NPDE) 反应合成的环氧 (甲) 烯酸.
- 使用FTIR光谱测定树脂的特征,测量非挥发性物质 (NV),酸值 (PAV) 和环氧等价值 (EEs).
- 制定和研究可光固化的涂料成分,分析固化过程和特性.
主要成果:
- 成功合成了具有环氧和 (甲) 烯酸的环氧 (甲) 烯酸树脂.
- 树脂表现出适用于UV和热启动的双固化机制 (阴离子和激素).
- 由这些树脂制成的涂料在暴露不足的区域显示出更好的固化和减少变形.
- 基于环氧树脂的材料表现出高的玻璃过渡温度和令人满意的功能性质.
结论:
- 开发了多功能环氧 (甲基) 烯酸树脂,使混合紫外线/热固化成为可能.
- 这些树脂为传统紫外线可固化涂料的局限性提供了解决方案,特别是在复杂的应用中.
- 合成材料对先进的可光修复涂层和3D打印具有显著的前景.
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