针对碳纤维增强树脂基复合材料界面结合强度不足导致复合材料整体力学与摩擦性能不及预期的问题,提出了一种基于浓硝酸氧化与硅烷偶联剂KH560协同改性的碳纤维表面处理策略。通过采用65％浓硝酸以及硅烷偶联剂KH560协同改性针刺结构碳纤维预制体表面,探究低成本处理方法对提高复合材料力学性能和摩擦性能的影响。结果表明:通过对碳纤维预制体表面协同处理方法,碳纤维表面粗糙度明显提高,且附着大量基团,碳纤维与树脂的结合能力提升,处理后复合材料弯曲强度提升到203.53MPa,较未处理提升19.56%;拉伸强度提升到127.22MPa,较未处理提升24.71%;制备得酚醛树脂基复合材料摩擦系数稳定在0.3左右,适用于摩擦材料。
In this paper,to address the issue that insufficient interfacial bonding strength in carbon fiber reinforced resin matrix composites leads to the overall mechanical and friction properties of the composites being less than expected,a carbon fiber surface treatment strategy based on the synergistic modification of concentrated nitric acid oxidation and silane coupling agent KH560 was proposed.The surface of carbon fibre was modified with 65% concentrated nitric acid and silane coupling agent KH560 to investigate the effect of the low cost treatment on the mechanical and frictional properties of the composites.The experimental results showed that through the synergistic treatment method on the surface of carbon fibre preform,the surface roughness of carbon fiber was obviously improved and a large number of groups were attached,thereby enhancing the bonding ability of carbon fibre and resin.After treatment,the flexural strength of the composite material increased to 203.53MPa,which was 19.56% higher than that of the untreated one,and the tensile strength increased to 127.22MPa,which was 24.71% higher than that of the untreated one.The friction coefficient of phenolic resin matrix composites was stable at about 0.3,making it suitable for friction materials.
[1] 姜立业,李娜,陈鹏,等.碳纤维复合材料在轻量化的应用和前景[J].塑料工业,2022,50(1):14-19.
[2] 杨桂英,赵睿,肖冰,等.碳纤维复合材料在汽车轻量化中的应用[J].当代石油石化,2020,28(10):24-28.
[3] 贺辛亥,宁志新,梁军浩,等.编织角对3D-Cf/6061Al复合材料弯曲性能的影响[J].西安工程大学学报,2022,36(3):100-105.
[4] 王振林,孙浩,何芳,等.纤维增强树脂基复合材料制造技术研究进展[J].化学与粘合,2020,42(5):377-382.
[5] Cheng P,He X,Zhou H,et al.Study on the friction characteristics of the bonding point of variable cross-section three-dimensional braided yarn increase based on the bonding method[J].Journal of Industrial Textiles,2023,DOI:10.1177/15280837231220077.
[6] 马全胜,王文义,白江坡,等.风电叶片用碳纤维复合材料研究进展[J].高科技纤维与应用,2023,48(5):13-19.
[7] Wang B,Fu Q,Sun L,et al.Improving the tribological performance of carbon fiber reinforced resin composite by grafting MWCNT and GNPs on fiber surface[J].Materials Letters,2022,306:130953.
[8] 王奔,高航,郭东明.树脂固化温度与纤维铺设方式对C/E复合材料制孔质量的影响[J].机械工程学报,2011,47(12):19-25.
[9] 鲁张祥,宋歌.混杂纤维含量对树脂基摩擦材料摩擦磨损性能的影响[J].中国塑料,2021,35(6):6.
[10] 何卫锋,李榕凯,罗思海.复合材料用碳纤维等离子体表面改性技术进展[J].表面技术,2020,49(7):76-89.
[11] 周吓星,范宏玥,童文瑄,等.硅烷用量对竹原纤维增强复合材料性能的影响[J].森林与环境学报,2021,41(6):659-666.
[12] Yuan X,Wang Y,Zhang Z,et al.Recent advances of interfacial modifications toward carbon fiber-reinforced thermoplastic polypropylene and polyamide composites[J].Polymer Composites,2025,46(4):2911-2932.
[13] 常舰,肖海刚,谢钟清,等.不同工艺参数和界面改性对碳纤维增强聚苯硫醚复合材料Ⅰ型层间断裂韧性的影响[J].复合材料科学与工程,2022(1):22-28.
[14] 杨鹏飞,贺辛亥,宋衍滟,等.混杂工艺对玻璃纤维/碳纤维复合材料力学性能的影响[J].化工新型材料,2025,53(5):96-100.
[15] 胡晓兰,周川,代少伟,等.氧化石墨烯改性不同表面性质的碳纤维/环氧树脂复合材料的微观形貌与动态热力学性能[J].复合材料学报,2020,37(5):1070-1080.
[16] 张雪,刘媛,杨斌,等.碳纤维表面改性对复合材料性能的影响[J].功能高分子学报,2017,30(4):444-449.
[17] 杨瑞瑞,胡万成,陶红波.纤维热氧-接枝处理与基体改性对CF/VE复合材料力学性能的影响[J].材料开发与应用,2017,32(2):23-28.
[18] Wang B,Fu Q,Li H,et al.Synergistic effect of surface modification of carbon fabrics and multiwall carbon nanotube incorporation for improving tribological properties of carbon[10] fabrics/resin composites[J].Polymer Composites,2020,41:102-111.
[19] Lou S,Ren G,Zhang H,et al.Effect of surface treatment on properties of carbon fiber and glass fiber hybrid reinforced composites[J].Fibers and Polymers,2022,23:3225-3231.
[20] 胡建海,唐鋆磊,李湉,等.碳纤维和芳纶纤维的蚀刻改性及其复合材料界面结合性能研究进展[J].表面技术,2021,50(10):94-116.
[21] Peng Chunzheng.Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface[J].Surface and Interface Analysis,2018,50(6):628-633.
[22] 白惠中,陈国清,时险峰,等.利用碳纤维废弃料制备树脂基摩擦材料的研究[J].航天制造技术2022(2):14-17,22.
[23] Ahmadijokani F,Alaei Y,Shojaei A,et al.Frictional behavior of resin-based brake composites:effect of carbon fibre reinforcement[J].Wear,2019,420-421:108-115.
PDF
