双等离子体改性超高分子量聚乙烯复合材料的弹道响应  

Ballistic response of duoplasmatron-modified polyethylene composites

作　　者：方春月 刘紫璇 贾立霞[1,2] 阎若思[1,2] FANG Chunyue;LIU Zixuan;JIA Lixia;YAN Ruosi(College of Textile and Garments,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China;Hebei Technology Innovation Center for Textile and Garment,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China)

机构地区：[1]河北科技大学纺织服装学院,河北石家庄050018 [2]河北科技大学河北省纺织服装工程技术创新中心,河北石家庄050018

出　　处：《纺织学报》2024年第2期77-84,共8页Journal of Textile Research

基　　金：国家自然科学基金青年科学基金项目(12202133);河北省高等学校科学研究计划重点项目(ZD2022025);河北省青年拔尖人才支持计划项目(2018-27);河北科技大学基本科研项目国家基本一般专项项目(2023XLM004)。

摘　　要：为揭示双等离子体改性对超高分子量聚乙烯(UHMWPE)复合材料冲击性能的影响,采用真空辅助树脂灌注成型技术(VARI)制成UHMWPE复合材料,借助原子力显微镜等手段对改性前后的纤维表面进行观测,探究复合材料在低速及高速冲击时的抗冲击性能以及防弹机制。低速冲击载荷作为响应值构筑响应曲面模型,高速摄影机捕捉子弹侵彻改性前后复合材料的过程,分析板材的吸能情况并对侵彻后的试样进行表面观测。结果表明:未改性板材通过各层振荡式波动以形成严重分层来耗散能量;改性后的材料能有效地包覆住子弹,背弹面表层纤维呈现原纤化,断口处出现树脂大量富集,阻抗作用增强,吸能值较未改性材料提高45.59%。Objective Ultra-high molecular weight polyethylene(UHMWPE)fiber has the characteristics of high strength,mode and specific absorption energy,the UHMWPE composites has excellent impact resistance and has a place for military applications.However,UHMWPE fiber itself has high crystallinity and orientation,poor surface polarity,the interface properties formed between fiber and resins is weak,stress cannot be well transmitted,which in turn causes premature failure of the material.In this study,the duoplasmatron surface modification technology was used to improve the chemical bonding and mechanical interlocking ability of fibers and resins,so as to improve the impact resistance of composites.Method In this study,the UHMWPE fiber fabric with a specification of 180 g/m^(2) modified by oxygen/argon duoplasmatron,and the vacuum-assisted resin infusion molding technology(VARI)technology was used to prepare composites from the surface modified UHMWPE fabric and epoxy vinyl ester resin.AFM(atomic force microscope),FT-IR(fourier transform infrared reflection)and other test methods were used to characterize the materials before and after modification,the impact load value was used as the response value,and the three-dimensional surface model was constructed by the response surface method to explore the influence of modification on the ballistic resistance of UHMWPE composites,the penetration process was recorded by high-speed cameras.Results After ionizing the mixed gas,FT-IR results showed that more—OH hydrophilic groups are formed on the surface of the fiber,the hydrophilicity of the surface was improved on the basis of unmodified.The moisture permeability of the first and second modified materials after modification is increased by 33.3% and 30.6% respectively,compared with the unmodified materials.The fiber mean square root roughness value of the fiber modified by double plasma was 124,and the surface morphology was strip-like with terrain,which significantly increased the bonding area and promoted mechanical linkage.In t

关 键 词：双等离子体改性 超高分子量聚乙烯 复合材料 抗冲击性能 防弹性能 

分 类 号：TS15[轻工技术与工程—纺织材料与纺织品设计] TB332[轻工技术与工程—纺织科学与工程]