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Preparation of Iron Filler‐Based Photocomposites and Application in 3D Printing
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-12-28 , DOI: 10.1002/mame.202000720
Yangyang Xu 1 , Zhaofu Ding 1 , Haibin Zhu 1 , Yijun Zhang 2 , Stephan Knopf 2 , Pu Xiao 3 , Jacques Lalevée 2
Affiliation  

The introduction of metallic fillers to polymers via the photopolymerization approach can endow the composite materials with some unique properties, but the relevant research is still scarce due to the issue of light penetration and inner filter effect. Herein, for the first time the fabrication of photocomposites based on fine iron powder (i.e., a typical kind of metallic filler) is reported in this work. The free radical polymerization of two different acrylate monomers, poly(ethylene glycol) diacrylate and trimethylolpropane triacrylate, is performed in the presence of iron filler under mild conditions (i.e., light emitting diode (LED)@405 nm irradiation at room temperature under air). And the real‐time Fourier transform infrared spectroscopy reveals remarkable photopolymerization kinetics of acrylates with high final conversions and fast polymerization rates despite the increasing contents of iron filler in the composites. Interestingly, the 3D printing technique is applied to the iron filler‐based composites to produce tridimensional patterns with excellent spatial resolution. This work not only paves the way for the investigation of photocomposites based on metallic fillers through photochemical methods, but also broadens the potential application prospects.

中文翻译:

基于铁填料的光敏复合材料的制备及其在3D打印中的应用

通过光聚合方法将金属填料引入聚合物可以赋予复合材料一些独特的性能,但是由于光穿透和内部滤光效果的问题,相关的研究仍然很少。在此,这项工作首次报道了基于细铁粉(即一种典型的金属填料)的光敏复合材料的制造。两种不同的丙烯酸酯单体(聚乙二醇二丙烯酸酯和三羟甲基丙烷三丙烯酸酯)的自由基聚合是在铁填料存在的条件下(在室温,空气中于405 nm照射下)在温和条件下进行的。 。实时傅立叶变换红外光谱显示,尽管复合物中铁填料含量增加,丙烯酸酯仍具有出色的光聚合动力学,最终转化率高,聚合速率快。有趣的是,将3D打印技术应用于基于铁填料的复合材料,以产生具有出色空间分辨率的三维图案。这项工作不仅为通过光化学方法研究基于金属填料的光复合材料铺平了道路,而且拓宽了潜在的应用前景。
更新日期:2020-12-28
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