新型炭材料（中英文）2024，Vol.39Issue(4)：692-702,11.DOI:10.1016/S1872-5805(22)60646-2
炭纤维/聚醚酮酮湿法复合诱导非晶态粘附以增强界面剪切强度
Polyetherketoneketone/carbon fiber composites with an amorphous interface prepared by solution impregnation
摘要
Abstract
Interfacial adhesion between carbon fibers(CF)and polyetherketoneketone(PEKK)is a key factor that affects the mechanical performances of their composites.It is therefore of great importance to impregnate the CF bundles with PEKK as effi-ciently as possible.We report that PEKK with a good dispersion in a mixed solution of 4-chlorophenol and 1,2-dichloroethane can be introduced onto CF surfaces by solution impregnation and curing at 280,320,340 and 360 ℃.The excellent wettability or infiltra-tion of the PEKK solution guarantees a full covering and its tight binding to CFs,making it possible to evaluate the interfacial shear strength(IFSS)with the microdroplet method.The interior of the CF bundles is completely and uniformly filled with PEKK by solu-tion impregnation,leading to a high interlaminar shear strength(ILSS).The maximum IFSS and ILSS reached 107.8 and 99.3 MPa,respectively.Such superior shear properties are ascribed to the formation of amorphous PEKK in the small spaces between CFs.关键词
聚醚酮酮/炭纤维/润湿性/非晶态粘附/界面强度Key words
Polyetherketoneketone/Carbon fiber/Wettability/Amorphous adhesion/Interfacial strength分类
通用工业技术引用本文复制引用
张凤,李博澜,焦梦晓,李言博,王昕,杨禹,阳玉球,张骁骅..炭纤维/聚醚酮酮湿法复合诱导非晶态粘附以增强界面剪切强度[J].新型炭材料（中英文）,2024,39(4):692-702,11.基金项目
This work was supported by the Fundamental Research Funds for the Central Universities(2232021G-01)and National Natural Science Founda-tion of China(62176158). 中央高校基本科研业务费专项资金(2232021G-01) （2232021G-01）
国家自然科学基金(62176158). （62176158）
