织物结构对玄武岩织物/环氧树脂复合材料力学性能的影响  

Mechanical Properties of Epoxy Composites Reinforced by Basalt Fabric with Different Structure

作　　者：樊凯 卢雪峰[1] 钱坤[1] FAN Kai;LU Xuefeng;QIAN Kun(Key Laboratory of Eco-Textiles,Ministry of Education,Jiangnan university,Wuxi 214122,China)

机构地区：[1]江南大学生态纺织教育部重点实验室

出　　处：《材料科学与工程学报》2019年第3期452-456,共5页Journal of Materials Science and Engineering

基　　金：国家重点研发计划资助项目(2018YFC0810300);“十三五”国家重点研发计划资助项目(2016YFC-0304301,2016YFB0303200);中央高校基本科研业务费专项资金资助项目(JUSRP51718A);江苏省科技成果转化资助项目(BA2016170);江苏省研究生科研创新计划资助项目(KYCX18-1836);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：采用三种不同结构玄武岩织物(单向/平纹/2.5维),通过树脂传递模塑成型工艺(RTM)制备了玄武岩织物增强环氧树脂复合材料。通过拉伸和弯曲试验,研究了织物结构对复合材料力学性能的影响,探讨了不同织物结构玄武岩织物增强环氧树脂复合材料的损伤破坏机制。结果表明:织物结构形式对复合材料的力学性能有较大影响,单向玄武岩织物复合材料的拉伸性能最好,试样的拉伸断口相对齐平,分层现象不明显;2.5维玄武岩织物复合材料弯曲性能最好,且纬向弯曲性能优于经向。2.5维织物增强复合材料的结构整体性较好,受到拉伸和弯曲载荷不会产生分层破坏。根据扫描电子显微镜(SEM)断面分析可以判定,玄武岩织物/环氧树脂复合材料拉伸和弯曲加载过程中的损伤类型主要为织物中纤维的断裂及纤维-树脂的界面脱粘。Basalt fabric reinforced epoxy resin composites were prepared by resin transfer molding process(RTM)basalt fabrics with three different structures(Unidirectional cloth,Plain woven fabric,2.5 dimensional fabric).The tensile and bending tests were carried out and the damage mechanism was also discussed in order to study the effect of fabric structure on the mechanical properties of the composites.The tensile properties of unidirectional basalt fabric composites is the best,the tensile fracture surfaces is relatively flat,and the delamination phenomenon of the sample is not obvious.2.5 dimensional fabric composites have the best bending performance and the bending performance of weft direction is superior to the warp direction.The structure integrity of 2.5 Ddimensional fabric reinforced composites is great,and the composites will not suffer from delamination damage under either tensile or bending loads.It is recognized that the fabric structure has a great influence on the mechanical properties of the composites.SEM observation of the specimen cross section shows that the damage types of the basalt fabric/epoxy resin composite during tensile and bending loading are mainly the fiber breakage and fiber-resin interface debonding.

关 键 词：玄武岩织物 织物结构 复合材料 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]