YANG Yu, LU Chun-xiang, WANG Xin-kui, LIU Hong-peng, HE Fu, LI Yong-hong, SONG Yan. 纳米SiO2改性上浆剂对炭纤维复合材料界面性能的影响. New Carbon Mater., 2005, 20(03): 211-216.
Citation:
YANG Yu, LU Chun-xiang, WANG Xin-kui, LIU Hong-peng, HE Fu, LI Yong-hong, SONG Yan. 纳米SiO2改性上浆剂对炭纤维复合材料界面性能的影响. New Carbon Mater., 2005, 20(03): 211-216.
YANG Yu, LU Chun-xiang, WANG Xin-kui, LIU Hong-peng, HE Fu, LI Yong-hong, SONG Yan. 纳米SiO2改性上浆剂对炭纤维复合材料界面性能的影响. New Carbon Mater., 2005, 20(03): 211-216.
Citation:
YANG Yu, LU Chun-xiang, WANG Xin-kui, LIU Hong-peng, HE Fu, LI Yong-hong, SONG Yan. 纳米SiO2改性上浆剂对炭纤维复合材料界面性能的影响. New Carbon Mater., 2005, 20(03): 211-216.
Key Laboratory of Carbon Materials,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China; 2.Graduate School of the Chinese Academy of Science,Beijing 100039,China
A single fiber fragmentation test, three-point bend test, scanning electron microscopy and dynamic mechanical thermal analysis (DMTA) were performed to study the influence of nano-SiO2 modified emulsion sizing on the interfacial properties of carbon fibers reinforced plastics (CFRP). As a comparison, CFRP with and without sizing but not modified by nanoSiO2 were also investigated. Results showed that the interfacial shear strength (IFSS) values of the CF with modified sizing and unmodified sizing were increased by 79% and 41%, respectively, compared to the CF without sizing. The interlaminar shear strength (ILSS) values of the CFRP with modified sizing and unmodified sizing were also increased by 14% and 9%, respectively compared to the CFRP without sizing. Furthermore, the loss tangent (tanδ) of CFRP with modified sizing declined to 18% and glass transition temperature (Tg) was increased by 5℃, compared to the CFRP with unmodified sizing in the DMTA chart. So the interfacial adhesion performance of the CFRP with modified sizing by nano-SiO2 was evidently increased.