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Effect of Interface Modification on Mechanical Properties and Friction and Wear Properties of Carbon Fiber/Polyetheretherketone Composites
- Acta Polymerica Sinica Vol. 56, Issue 4, Pages: 653-667(2025)
- 作者机构：
1.河南科技大学，化学化工学院，洛阳 471023
2.河南科技大学，高端轴承摩擦学技术与应用国家地方联合工程实验室，洛阳 471023
- 作者简介：
Xian-juan Pang, E-mail: xjpang2001@haust.edu.cn
- 基金信息：
DOI：10.11777/j.issn1000-3304.2024.24254
CLC：- CSTR：32057.14.GFZXB.2024.7334
Received：18 October 2024，
Accepted：2024-12-25，
Published Online：27 February 2025，
Published：20 April 2025
- 稿件说明：
移动端阅览
唐鸣津, 王艺璇, 杨晓萱, 薛键鑫, 王露露, 王帅, 宋晨飞, 陆焕焕, 张永振, 李杰, 逄显娟. 增强体表面改性对碳纤维/聚醚醚酮复合材料摩擦磨损性能的影响. 高分子学报, 2025, 56(4), 653-667
Tang, M. J.; Wang, Y. X.; Yang, X. X.; Xue, J. X.; Wang, L. L.; Wang, S.; Song, C. F.; Lu, H. H.; Zhang, Y. Z.; Li, J.; Pang, X. J. Effect of interface modification on mechanical properties and friction and wear properties of carbon fiber/polyetheretherketone composites. Acta Polymerica Sinica, 2025, 56(4), 653-667
唐鸣津, 王艺璇, 杨晓萱, 薛键鑫, 王露露, 王帅, 宋晨飞, 陆焕焕, 张永振, 李杰, 逄显娟. 增强体表面改性对碳纤维/聚醚醚酮复合材料摩擦磨损性能的影响. 高分子学报, 2025, 56(4), 653-667 DOI： 10.11777/j.issn1000-3304.2024.24254. CSTR： 32057.14.GFZXB.2024.7334.
Tang, M. J.; Wang, Y. X.; Yang, X. X.; Xue, J. X.; Wang, L. L.; Wang, S.; Song, C. F.; Lu, H. H.; Zhang, Y. Z.; Li, J.; Pang, X. J. Effect of interface modification on mechanical properties and friction and wear properties of carbon fiber/polyetheretherketone composites. Acta Polymerica Sinica, 2025, 56(4), 653-667 DOI： 10.11777/j.issn1000-3304.2024.24254. CSTR： 32057.14.GFZXB.2024.7334.
摘要
采用聚乙烯亚胺(PEI)上浆剂及聚酰胺-胺(PAMAM)偶联剂接枝法分别对碳纤维(CF)进行改性，从而提高碳纤维/聚醚醚酮复合材料的界面结合强度. 采用热压烧结法制备了纯聚醚醚酮(PEEK)及改性前后CF/PEEK复合材料. 探究改性前后复合材料的界面性能、力学性能，以及在干摩擦条件下的摩擦磨损性能. 结果表明：填料CF经PEI上浆及PAMAM接枝改性后，表面能分别比纯PEEK提高了30.9%和10.58%，两种改性对CF/PEEK复合材料的界面结合强度均提高. 在摩擦磨损试验中，在固定转速200 r/min的情况下，随着载荷提高，改性后的复合材料的摩擦系数先升高再降低，磨损率逐渐升高. 与未改性CF/PEEK复合材料相比，PAMAM-CF/PEEK和PEI-CF/PEEK的摩擦系数和磨损率分别低11.63%、72.34%和11.51%、75.58%，比纯PEEK分别低30.12%、95.17%和25.32%、95.74%. 虽然PEI-CF/PEEK的摩擦系数比PAMAM-CF/PEEK高0.84%，但是其磨损率降低了22.13%. 在固定载荷90 N的情况下，随着转速的提高，摩擦系数和磨损率均呈现先降低再升高的趋势. PAMAM-CF/PEEK和PEI-CF/PEEK的摩擦系数和磨损率比CF/PEEK分别低15.1%、52.53%和18.78%、63.04%，比纯PEEK分别低25.42%、88.86%和25.32%、91.33%，虽然PEI-CF/PEEK的摩擦系数比PAMAM-CF/PEEK高4.33%，但磨损率降低了28.42%. 改性后的复合材料在界面结合强度与摩擦磨损性能方面均有改善，且经PEI上浆改性的CF/PEEK复合材料的综合性能优于经PAMAM接枝改性的CF/PEEK.
Abstract
Carbon fiber (CF) was modified using a PEI sizing agent and a PAMAM coupling agent to enhance the interfacial bonding strength in carbon fiber/polyetheretherketone (CF/PEEK) composites. Pure polyetheretherketone (PEEK) and CF/PEEK composites were fabricated
via
hot-press sintering. The study investigated the interfacial characteristics
mechanical performance
and tribological behavior of the composites both pre- and post-modification. Results indicated that the surface energy of the CF filler increased by 30.9% after PEI sizing modification and by 10.58% following treatment with the PAMAM coupling agent
relative to unmodified CF. In friction and wear tests conducted at a constant speed of 200 r/min
the friction coefficient and wear rate for PAMAM-CF/PEEK and PEI-CF/PEEK decreased by 11.63% and 72.34%
and 11.51% and 75.58%
respectively
compared to unmodified CF/PEEK. Under a fixed load of 90 N
similar reductions were observed: 15.1% and 52.53%
and18.78% and 63.04%
respectively. These results demonstrate improved interfacial bonding strength and tribological performance in the modified composites. Overall
CF/PEEK composites modified with PEI sizing exhibited superior interfacial bonding strength and tribological properties compared to those treated with the PAMAM coupling agent.
关键词
Keywords
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