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Fabrication of transparent advanced composites
Composites Science and Technology ( IF 9.1 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.compscitech.2020.108281
Navid Zobeiry , Austin Lee , Christophe Mobuchon

Abstract Transparent advanced composites offer distinct mechanical advantages over other transparent materials including high specific strength and stiffness, and exceptional impact resistance due to their quasi-brittle nature. This potentially allows them to be used in large and load-bearing applications. However, there are challenges and limitations to fabricate composites with high degree of transparency due to inherent chromatic aberration and other surface and bulk defects. In this paper, a systematic approach to fabricate transparent composites using advanced glass fibers and thermoset-based resin systems is presented. It is shown that using low-cost commercial grade E-glass fibers, high transparency can be achieved. An epoxy-based resin system is developed by systematically matching the chromatic dispersion of E-glass fiber and resin. Surface and bulk defects are mitigated by developing a customized infusion-based manufacturing process. The method was successfully applied to fabricate composite samples with light transmissions up to 88%.

中文翻译:

透明先进复合材料的制造

摘要 透明的先进复合材料与其他透明材料相比具有明显的机械优势,包括高比强度和刚度,以及由于其准脆性而产生的出色抗冲击性。这可能允许它们用于大型和承重应用。然而,由于固有的色差和其他表面和体缺陷,制造具有高度透明度的复合材料存在挑战和限制。在本文中,提出了一种使用先进玻璃纤维和热固性树脂系统制造透明复合材料的系统方法。结果表明,使用低成本的商业级无碱玻璃纤维可以实现高透明度。通过系统地匹配无碱玻璃纤维和树脂的色散,开发了一种环氧基树脂体系。通过开发定制的基于灌注的制造工艺,可以减轻表面和整体缺陷。该方法已成功应用于制备透光率高达 88% 的复合样品。
更新日期:2020-09-01
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