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| 三维针刺CFRP复合材料的制备及显微结构研究 | |
| 引用本文： | 姜娟,范尚武,蔡艳芝,王晓芳.三维针刺CFRP复合材料的制备及显微结构研究[J].应用化工,2012,41(7):1224-1226. |
| 作者姓名： | 姜娟 范尚武 蔡艳芝 王晓芳 |
| 作者单位： | 1. 咸阳师范学院化学与化工学院,陕西咸阳,712000 2. 西北工业大学材料学院,陕西西安,710072 3. 西安建筑科技大学材料科学与工程学院,陕西西安,710055 |
| 基金项目： | 咸阳师范学院专项科研基金项目 |
| 摘 要： | 以三维针刺碳毡作为预制体,采用树脂浸渍-热压固化工艺快速制备了碳纤维增强树脂基复合材料(CFRP)。通过光学和扫描电子显微镜观察了材料的显微结构,使用阿基米德方法测定材料的密度和气孔率,并利用压汞仪分析了材料的孔隙分布。结果表明,树脂浸渍-热压固化是一种理想的制备CFRP复合材料的方法,制备出的材料密度可达1.45 g/cm3,孔隙率仅为3%,且孔隙主要为由热应力引起的纤维束内贯穿裂纹和基体-纤维界面脱粘两类。 |
| 关 键 词： | 三维针刺 CFRP 制备 显微结构 |
Preparation and study on microstructure of 3D needled CFRP composites |
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| JIANG Juan , FAN Shang-wu , CAI Yan-zhi , WANG Xiao-fang.Preparation and study on microstructure of 3D needled CFRP composites[J].Applied chemical industry,2012,41(7):1224-1226. | |
| Authors: | JIANG Juan FAN Shang-wu CAI Yan-zhi WANG Xiao-fang |
| Affiliation: | 1(1.School of Chemistry & Chemical Engineering,Xianyang Normal University,Xianyang 712000,China; 2.School of Materials Science,Northwestern Polytechnical University,Xi’an 710072,China; 3.School of Materials Science and Engineering,Xi’an University of Architecture & Technology,Xi’an 710055,China) |
| Abstract: | Carbon fiber reinforced polymer(CFRP) composites were prepared by resin impregnation and hot-pressing curing with 3D needle-punched carbon fiber as the preform.The microstructure characteristics of CFRP were studied by means of optical microscopy and scanning electron microscopy.The Archimedes method was used to determine the density and open porosity of the material,and the pore size distribution was measured by mercury porosimeter.Results showed that the resin impregnation and hot-pressing curing was an ideal preparation method for CFRP composites.The density of the composites was up to 1.45 g/cm3,and the open porosity was only 3%.The pores can be divided into the cracks and the matrix-fiber interface debonding,which were both caused by thermal stress. |
| Keywords: | 3D needled CFRP preparation microstructure |
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