Investigation of the Mechanical Properties of Three-Dimensional Polyurethane Composites Reinforced with Warp-Knitted Spacer Fabrics

IF 0.6 4区 工程技术 Q4 MATERIALS SCIENCE, TEXTILES
G. Lou, Si Chen
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引用次数: 0

Abstract

In this study, a novel composite having a unique three-dimensional structure was investigated. Warp-knitted spacer fabrics with glass fiber woven fabric were chosen as the reinforcement, while polyurethane foam was used as the matrix materials. The glass fiber woven fabric was pretreated with the warp-knitted spacer fabric first, and then a hand lay-up method was used to fabricate the three-dimensional polyurethane-based composites. The mechanical properties of the finished composites were determined. The influence of the fabric thickness, the surface structure of the fabric, and whether the woven fabric is laminated or not on the mechanical properties of the three-dimensional polyurethane composites were determined. The results show that the fabric thickness is positively related to the tensile and compressive properties and inversely related to the bending properties of the three-dimensional knitted/woven hybrid polyurethane matrix composites, provided that the surface structure is the same. The tensile and compressive strengths of the composites were higher when the glass fiber woven fabric was laminated with the spacer fabric than when the three-dimensional knitted/woven hybrid polyurethane matrix composites were not taken. Therefore, the knitted/woven fabric as reinforcement improved the tensile and compressive properties of the composites.
经编间隔织物增强三维聚氨酯复合材料的力学性能研究
在本研究中,研究了一种具有独特三维结构的新型复合材料。选用玻璃纤维织物为增强材料的经编间隔织物,聚氨酯泡沫塑料为基体材料。采用经编间隔织物对玻璃纤维机织物进行预处理,然后采用手工叠层的方法制备了三维聚氨酯基复合材料。测定了复合材料的力学性能。测定了织物厚度、织物表面结构以及织物是否层压对三维聚氨酯复合材料力学性能的影响。结果表明,在表面结构相同的情况下,织物厚度与三维针织/机织杂化聚氨酯基复合材料的拉伸和压缩性能呈正相关,与弯曲性能呈负相关。当玻璃纤维编织物与间隔织物层压时,复合材料的拉伸和压缩强度高于不采用三维编织/编织混合聚氨酯基复合材料时。因此,针织/机织物作为增强材料提高了复合材料的拉伸和压缩性能。
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来源期刊
AATCC Journal of Research
AATCC Journal of Research MATERIALS SCIENCE, TEXTILES-
CiteScore
1.30
自引率
0.00%
发文量
34
期刊介绍: AATCC Journal of Research. This textile research journal has a broad scope: from advanced materials, fibers, and textile and polymer chemistry, to color science, apparel design, and sustainability. Now indexed by Science Citation Index Extended (SCIE) and discoverable in the Clarivate Analytics Web of Science Core Collection! The Journal’s impact factor is available in Journal Citation Reports.
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