耐高温PPBES溶液型碳纤维上浆剂的制备及性能  

Preparation and Performance of High Temperature Resistant PPBES Solution Type Carbon Fiber Sizing Agent

作　　者：潘晓彤 郭玉洁[3,4] 潘雨曦[1,2] 曾文广 王程浩[1,2] 李芳[3,4] 陈博 蹇锡高[1,2,5,6] Pan Xiaotong;Guo Yujie;Pan Yuxi;Zeng Wenguang;Wang Chenghao;Li Fang;Chen Bo;Jian Xigao(Department of Polymer Materials,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;State Key Laboratory of Fine Chemicals,Dalian 116024,China;Key Laboratory of Enhanced Recovery from Carbonate Slit Hole Type Reservoirs,China Petroleum&Chemical Corporation,Urumqi 830011,China;Northwest Oilfield Branch,China Petroleum&Chemical Corporation,Urumqi 830011,China;Advanced Polymer and Composite Materials Engineering Research Center,Ministry of Education of China,Dalian 116024,China;Liaoning Engineering Research Center for High Performance Resins,Dalian 116024,China)

机构地区：[1]大连理工大学化工学院高分子材料系,辽宁大连116024 [2]精细化工国家重点实验室,辽宁大连116024 [3]中国石油化工集团公司碳酸盐岩缝洞型油藏提高采收率重点实验室,乌鲁木齐830011 [4]中国石油化工股份有限公司西北油田分公司,乌鲁木齐830011 [5]中国教育部先进高分子及复合材料工程研究中心,辽宁大连116024 [6]辽宁省高性能树脂工程技术研究中心,辽宁大连116024

出　　处：《工程塑料应用》2023年第9期1-7,26,共8页Engineering Plastics Application

基　　金：中央高校基本科研业务费项目(DUT20LAB305);国家重点研发计划项目(2020YFB0311600)。

摘　　要：碳纤维增强高性能树脂基复合材料具有质轻、耐腐蚀性、力学强度高等特点,提升树脂与纤维界面强度可以优化复合材料综合性能。利用杂萘联苯聚芳醚树脂所具有的优异溶解性,选择氯仿∶N-甲基吡咯烷酮=2∶8混合溶液作为溶剂,制备耐高温溶液型上浆剂。通过对碳纤维进行上浆操作,在碳纤维表面包覆杂萘联苯聚芳醚砜树脂基团,纤维表面活性增加,当溶液上浆剂质量浓度为1.0%~1.5%时,树脂在碳纤维表面分散性较好,通过对比使用不同上浆剂的碳纤维增强树脂基复合材料的界面性能,使用浓度为1.5%的溶液上浆剂处理后的碳纤维相较于脱浆碳纤维,玻璃化转变温度从未处理的214℃提升至223℃,损耗因子从未处理的0.38下降到0.33,所制备的复合材料弯曲强度提升了12.0%,层间剪切强度提升了11.1%,证明溶液型上浆剂的使用提升了纤维与树脂间的界面性能。综上,溶液型上浆剂的使用能够提升碳纤维的表面活性,进而提升复合材料的弯曲强度、界面剪切强度,且提升效果优于市售常见环氧上浆剂,加工方便,有着广阔的市场应用前景。Carbon fiber reinforced high-performance resin matrix composites are characterized by light weight,corrosion resistance and high mechanical strength,and improving the strength of resin-fiber interface can optimize the comprehensive performance of composites.By taking advantage of the excellent solubility of poly(aryl ether)resin,chloroform∶NMP=2∶8 mixed solution was selected as the solvent to prepare high-temperature-resistant solution-type sizing agent.Through the sizing operation on the carbon fiber,the poly(aryl ether sulfone)resin groups were covered on the surface of the carbon fiber,and the surface activity of the fiber was increased,and the resin dispersion on the surface of the carbon fiber was better when the concentration of the solution sizing agent was 1.0%-1.5%,and the interfacial properties of the carbon fiber reinforced resin composites with different sizing agents were compared.By comparing the interfacial properties of carbon fiber reinforced resin matrix composites with different sizing agents,the glass transition temperature of the treated carbon fibers was increased from 214℃to 223℃,the loss factor was decreased from 0.38 to 0.33,the flexural strength of the prepared composites was increased by 12.0%and the interlaminar shear strength was increased by 11.1%compared with that of the desized carbon fibers,which proves that the use of solution sizing agent improves the interfacial properties between the fibers and the resins.In conclusion,the use of solution-type sizing agent can enhance the surface activity of carbon fibers,and then enhance the bending strength and interfacial shear strength of the composites,its enhance effect is better than the commercially available common epoxy sizing agent,easy to process,and has a broad market application prospects.

关 键 词：界面改性 杂萘联苯聚芳醚 上浆剂 碳纤维 溶液浸渍 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]