Effect of hyperbranched polyimide sizing agent on mechanical properties of carbon fiber reinforced poly(ether-ether-ketone)

doi:10.19936/j.cnki.2096-8000.20241128.012

Abstract

Abstract: Poly(ether-ether-ketone) (PEEK) has excellent properties, but there is a low interface strength between carbon fiber (CF) and PEEK due to the inert PEEK chains and the difficulty of forming the chemical bond with CF. To solve this problem, hyperbranched polyimide sizing agent was used to improve the interfacial properties of the composite. Firstly, hyperbranched polyimide was prepared by two-step method, and then the surface of carbon fiber was modified by sizing with hyperbranched polyimide by chemical grafting. The experimental results show that after sizing with hyperbranched polyimide, the surface roughness of carbon fiber increases. And the surface energy is increased to 48.0 mN/m, while the polar component of surface energy is decreased, indicating that its wettability with non-polar resin is improved. Moreover, the interlaminar shear strength and tensile strength of the modified carbon fiber reinforced PEEK composites have been increased by 52.4% and 39.8%, respectively, compared to the unmodified ones.

Key words: carbon fiber, composite, PEEK, PI, sizing, modification

CLC Number:

TB332

ZHU Minjie, WEI Longsha, KONG Wenfeng, YAN Yiwu. Effect of hyperbranched polyimide sizing agent on mechanical properties of carbon fiber reinforced poly(ether-ether-ketone)[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(11): 88-91.

References

[1] ZALAZNIK M, KALIN M, NOVAK S. Influence of the processing temperature on the tribological and mechanical properties of poly-ether-ether-ketone (PEEK) polymer [J]. Tribology International, 2016, 94: 92-97.
[2] 方良超, 陈奇海, 霍绍新, 等. 聚醚醚酮(PEEK)的改性及其应用[J]. 合成材料老化与应用, 2019, 48(2): 121-124.
[3] 周存, 田智勇. 聚醚醚酮水性上浆剂对碳纤维热塑性复合材料界面性能的影响[J]. 天津工业大学学报, 2022, 41(3): 20-27.
[4] 段翔远. 特种工程塑料聚醚醚酮应用进展[J]. 化工新型材料, 2013, 41(5): 183-185.
[5] 刘吕花, 郑延延, 张丽芳, 等. 硬组织植入聚醚醚酮表面生物活性改性研究[J]. 中国塑料, 2018, 32(11): 7-18.
[6] HSISSOU R, SEGHIRI R, BENZEKRI Z, et al. Polymer composite materials: A comprehensive review[J]. Composite Structures, 2021, 262: 113640.
[7] THERESA K, KLAUS C, MALTE M, et al. Carbon fiber-reinforced PEEK versus titanium implants: An in vitro comparison of susceptibility artifacts in CT and MR imaging[J]. Neurosurgical Review, 2021, 44: 2163-2170.
[8] 任天翔, 滕晓波, 黄兴, 等. 聚醚醚酮的改性及应用研究进展[J]. 塑料科技, 2022, 50(9): 123-128.
[9] XU P, YU Y, GUO Z, et al. Evaluation of composite interfacial properties based on carbon fiber surface chemistry and topography: Nanometer-scale wetting analysis using molecular dynamics simulation[J]. Composites Science and Technology, 2018, 171: 252-260.
[10] WANG X, HUANG Z, LAI M, et al. Highly enhancing the interfacial strength of CF/PEEK composites by introducing PAIK onto diazonium functionalized carbon fibers[J]. Applied Surface Science, 2020, 510: 145400.
[11] WANG T, JIAO Y, MI Z, et al. PEEK composites with polyimide sizing SCF as reinforcement: Preparation, characterization, and mechanical properties[J]. High Performance Polymers, 2020, 32(4): 383-393.
[12] GIRAUD I, FRANCESCHI-MESSANT S, PEREZ E, et al. Preparation of aqueous dispersion of thermoplastic sizing agent for carbon fiber by emulsion/solvent evaporation[J]. Applied Surface Science, 2013, 266: 94-99.
[13] LYU H, JIANG N, LI Y, et al. Enhanced interfacial and mechanical properties of carbon fiber/PEEK composites by hydroxylated PEEK and carbon nanotubes[J]. Composites Part A: Applied Science and Manufacturing, 2021, 145(6): 106364.
[14] 邢宇, 张代军, 王成博, 等. PEEK复合材料用碳纤维上浆剂研究进展[J]. 材料工程, 2022, 50(8): 70-81.
[15] LI X, ZHAO Y, WANG K. Interfacial crystallization behavior of poly(ether-ether-ketone) on polyimide-modified CCF300 carbon fibers[J]. Polymer Composites, 2020(6): 2433-2445.
[16] HASSAN E, GE D, ZHU S, et al. Enhancing CF/PEEK composites by CF decoration with polyimide and loosely-packed CNT arrays[J]. Composites Part A: Applied Science and Manufacturing, 2019, 127: 105613.
[17] YANG L, HAN P, GU Z. Grafting of a novel hyperbranched polymer onto carbon fiber for interfacial enhancement of carbon fiber reinforced epoxy composites[J]. Materials & Design, 2021, 200(8):109456.
[18] SHI L, MA L, LI P, et al. The effect of self-synthesized hydroxyl-terminated hyperbranched polymer interface layer on the properties of carbon fiber reinforced epoxy composites[J]. Applied Surface Science, 2019, 479: 334-343.
[19] 袁晓旭. 超支化聚酰亚胺的合成与气体分离性能研究[D]. 天津: 天津理工大学, 2019.
[20] 钱鑫, 王微霞, 王雪飞, 等. 不同方法退浆后碳纤维表面形态结构变化的研究[J]. 合成纤维, 2012, 41(1): 13-16.
[21] CHEN J, ZHANG T, WANG K, et al. Multiscale enhancement behavior of nano-silica modified CF/PEEK composites prepared by wet powder impregnation[J]. Polymer Composites, 2019, 40(3): 1187-1197.
[22] 王雄, 闵琪, 张征明, 等. 幂律流体Wilhelmy吊片法动态湿润的理论与实验研究[J]. 工程热物理学报, 2018, 39(6): 1186-1190.
[23] 陈泽久, 王静. 碳纤维/TiO₂改性树脂复合材料的制备及力学性能[J]. 材料科学与工艺, 2022, 30(6): 20-26.