三维机织物复合材料头盔壳体的制备及成型

发布时间：2018-02-07 11:12

本文关键词： 芳纶角联锁机织物复合材料头盔壳体 VARTM　出处：《武汉纺织大学》2017年硕士论文　论文类型：学位论文

【摘要】：防护装备随着时代的发展而持续不断更新,其中头盔作为人们在军事、运动、交通以及工地等领域的主要防护用品起着重要作用。高性能纤维机织物因具有高强高模的结构特性而被用于防护用纺织品的开发。三维机织物由于在其厚度方向拥有纤维束,使其复合材料的抗分层性能和抗冲击性能更加优异,在防护领域(如防弹、防暴等)已有广泛应用。对位芳纶纤维和超高分子量聚乙烯纤维可织性好,其机织物增强复合材料均具较高的耐冲击性能,适用于防暴头盔壳体。本文以三维经角联锁为织物基本组织结构,分别以美国杜邦公司生产的1500D芳纶凯夫拉纤维无捻长丝和国产1500D超高分子量聚乙烯纤维无捻长丝在普通小样织机上织造出其三、五、七、九层角联锁三维机织物,并织造出芳纶平纹机织物加以对比。经与手糊成型复合效果对比发现,真空辅助树脂传递模塑成型工艺(VARTM)更适合用来对织物预制件进行复合加工。将E-51环氧树脂作为基体,丙酮作为稀释剂,三乙烯四胺作为固化剂,把九种不同机织物分别作为增强材料并通过VARTM来完成十二种不同三维机织物复合材料板材的制备及成型。本文分别测试了十二种三维机织物复合材料试样的拉伸性能、冲击性能以及弯曲性能,确定使用芳纶五层角联锁织物组织结构进行复合材料头盔壳体的制备。将1500D芳纶无捻长丝在经改造的小样织机上织造出五层角联锁宽幅织物,并运用VARTM将平铺在模具上的宽幅织物进行复合,成功制作出一体成型三维机织物复合材料头盔壳体。最终成品中角联锁机织物平铺均匀且无褶皱,外观光滑无气泡,质轻且实用性强。
[Abstract]:With the development of the times, the protective equipment has been continuously updated, in which helmets are used as people in military, sports, High performance fiber woven fabrics are used in the development of protective textiles for their structural characteristics of high strength and high modulus. Three-dimensional woven fabrics have fiber bundles in the direction of their thickness. It has been widely used in the field of protection (such as bulletproof, anti-riot, etc.), and has been widely used in the fields of protection, such as para-aramid fiber and ultra-high molecular weight polyethylene fiber. The woven fabric reinforced composites have high impact resistance and are suitable for the anti-riot helmet shell. In this paper, three-dimensional interlocking is used as the basic structure of the fabric. Three dimensional woven fabrics with three, five, seven and nine layers of angle interlocking were made on ordinary loom with 1500D aramid Kafla fiber and 1500D UHMWPE fiber untwisted filament produced by DuPont Company of the United States of America and 1500D UHMWPE fiber respectively. Compared with hand paste, the vacuum assisted resin transfer molding process (VARTMTM) is more suitable for composite processing of fabric preforms. E-51 epoxy resin is used as matrix. Acetone as diluent, triethylenetetramine as curing agent, Nine different woven fabrics were used as reinforcements and 12 different 3D woven fabric composite plates were prepared and formed by VARTM. The tensile properties of 12 kinds of 3D woven fabric composites were tested in this paper. The structure of aramid five-layer angle-interlocking fabric was used to prepare the composite helmet shell. The 1500D aramid filament was woven into a five-layer angle-interlocking wide fabric on a modified sample loom. The composite helmet shell of 3D woven fabric was successfully fabricated by using VARTM to compound the wide fabric laid on the mould. The final product of the interlocking woven fabric with angle interlocking fabric was evenly laid and without fold, and the appearance was smooth and without bubbles. Light and practical.
【学位授予单位】：武汉纺织大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS106;TB33

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