Melt impregnation of woven glass fabric reinforced composites in situ modified with short glass fibers in the interlaminar free spacing: Morphology, microstructure and static mechanical properties,Polymer Composites

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Melt impregnation of woven glass fabric reinforced composites in situ modified with short glass fibers in the interlaminar free spacing: Morphology, microstructure and static mechanical properties
Polymer Composites ( IF 4.8 ) Pub Date : 2020-07-01 , DOI: 10.1002/pc.25698
Stefan Mörl ₁ , Daniel Knorr ₁ , Maximilian Streinz ₁ , Michaela Mörl ₁ , Volker Altstädt ₁

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Woven fabric composites with thermoplastic matrices enable superior mechanical properties with low weight for applications in the field of sports, electronics, aviation, and automotive. In this study, the matrix rich areas of glass fabrics which provide an interlaminar free spacing were modified via in situ melt impregnation of Polyamide 6 (PA6) with varying contents of short glass fibers (sGF). The aim is to effectively use the interlaminar free spacing in a fabric to increase stiffness by filling the matrix rich free spacing with short glass fibers of tailored length distribution. It is shown that 2.6 vol% sGF located in the undulations of the fabric are able to increase the tensile modulus in orientation of the short fibers (sF) by 9% and create an even more pronounced anisotropic enhancement of 14% in compression modulus for both 4.1 and 5.7 vol% sGF and 40% in shear modulus for 2.6 vol% sGF.

中文翻译：

玻璃纤维增强复合材料的熔融浸渍在层间自由间距中用短玻璃纤维原位改性：形态，微观结构和静态力学性能

具有热塑性基体的机织织物复合材料可在运动，电子，航空和汽车领域实现低重量的卓越机械性能。在这项研究中，通过原位熔融浸渍聚酰胺6（PA6）和不同含量的短玻璃纤维（sGF）来修饰提供层间自由间距的玻璃织物的富基质区域。目的是通过用定制长度分布的短玻璃纤维填充富含基质的自由空间，从而有效地利用织物中的层间自由空间来增加刚度。结果表明，位于织物起伏处的2.6 vol％sGF能够将短纤维（sF）的拉伸模量提高9％，并且对两种纤维的压缩模量均产生14％的更为显着的各向异性增强4.1和5。

更新日期：2020-07-01

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