| 引用本文: | 王迎芬,彭公秋,李国丽,谢富原,刘勇.T800H碳纤维表面特性及T800H/BA9918复合材料湿热性能研究[J].材料科学与工艺,2015,23(4):115-120.DOI:10.11951/j.issn.1005-0299.20150420. |
| WANG Yingfen,PENG Gongqiu,LI Guoli,XIE Fuyuan,LIU Yong.Study on surface characteristic of T800H carbon fiber and hygrothermal performance of T800H/BA9918 composite[J].Materials Science and Technology,2015,23(4):115-120.DOI:10.11951/j.issn.1005-0299.20150420. |
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| 摘要: |
| 为了研究T800H碳纤维的表面特性及其与BA9918树脂的界面匹配性,分别采用SEM、AFM、XPS和TGA对T800H碳纤维表面形貌、表面化学特性以及碳纤维上浆剂热稳定性进行表征,测试了T800H/BA9918复合材料湿热处理前后0°压缩强度、90°拉伸强度和层间剪切强度,并得到了其在湿热处理前后的开孔压缩和冲击后压缩性能.测试发现T800H碳纤维表面有明显的沟槽,有利于表面机械啮合作用；T800H/BA9918复合材料经29 J能量冲击后压缩强度为314 MPa；在130 ℃湿态环境下其0°压缩强度和层间剪切强度保持率高于58%,开孔压缩强度保持率高于60%.试验结果证明T800H碳纤维与BA9918树脂具有良好的界面匹配性,T800H/BA9918复合材料具有优异的耐湿热性能. |
| 关键词: T800H碳纤维 复合材料 力学性能 湿热处理 |
| DOI：10.11951/j.issn.1005-0299.20150420 |
| 分类号:V257;TB330.1 |
| 基金项目: |
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| Study on surface characteristic of T800H carbon fiber and hygrothermal performance of T800H/BA9918 composite |
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WANG Yingfen1, PENG Gongqiu1, LI Guoli1, XIE Fuyuan1, LIU Yong2
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(1. AVIC Composite Corporation Ltd,Beijing101300, China; 2. Aviation Department of the General Staff Military Representative Office in Harbin,Harbin 150060, China)
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| Abstract: |
| This paper intends to analyze the surface characteristics of T800H carbon fiber and the interface matching performance between T800H and BA9918 resin. Scanning electronic microscopy (SEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and thermogravimetry analysis (TGA) were used to characterize the surface morphology/chemical properties of carbon fibers and the heat resistance of sizing agent. Then, the 0° compression strength, 90° tensile strength and interlaminar shear strength (ILSS) of T800H/BA9918 were tested before and after hygrothermal treatment. Last, the open hole compression and compression after impact performance of T800H/BA9918 were obtained. Tests found that there are obvious grooves in the surface of T800H, which benefits the interfacial mechanical engagement between fiber and resin. The compressive strength after a 29 J impact is 314 MPa. In 130 ℃ hygrothermal environment the retention ratio of 0° compression strength and ILSS are above 58% while open hole compression strength are above 60%. Test results demonstrates that T800H carbon fiber and BA9918 resin have good interface matching performance, and T800H/BA9918 composite material has good hygrothermal performance. |
| Key words: T800H carbon fiber, composite, interface, mechanical properties, hygrothermal treatment |
