水溶性热塑性聚酰亚胺上浆剂对国产高强高模碳纤维复合材料界面性能的影响
Effect of water-soluble thermoplastic polyimide sizing agent on interfacial properties of domestic high strength and high modulus carbon fiber reinforced composites
查看参考文献26篇
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文摘
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以双酚A型二醚二酐(BPADA)、间苯二胺和1,3-二(4'-氨基苯氧基)苯(TPE-R)为原料合成了水溶性热塑性聚酰亚胺上浆剂,对国产高强高模碳纤维(HMCF)表面进行上浆处理并制备成复合材料。研究了不同单体摩尔比对上浆剂特性以及上浆处理后纤维表面结构性能的影响,进一步分析了热塑性上浆剂对国产高强高模碳纤维增强热塑性聚醚酮酮(PEKK)树脂基复合材料界面性能的影响。结果表明,当BPADA与TPE-R的单体摩尔比为1: 1时,合成得到的热塑性上浆剂不仅分子量分布均匀,而且具有优异的热稳定性,如温度554 ℃其热失重仅为5%。上浆处理后,高强高模碳纤维表面O/C由0.08增至0.18,提高了125%;上浆后纤维强度略有增高,模量几乎无变化;上浆处理后对复合材料界面性能改善明显,HMCF/PEKK复合材料层间剪切强度由处理前38.5 MPa提升至最高59.4 MPa,增幅高达54.3%。 |
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其他语种文摘
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The water-soluble thermoplastic polyimide sizing agent was synthesized from bisphe- nol A-type diether diether dianhydride (BPADA), m-phenylenediamine and 4,4'-(1,3-phenylenedioxy) dianiline (TPE-R). The surface of domestic high-strength and high-modulus carbon fiber (HMCF) was sized and prepared into composite material. The effects of molar ratios of different monomers on the characteristics of the sizing agent and the surface structure properties of the fibers after sizing treatment were studied, and the effects of thermoplastic sizing agents on the interfacial properties of domestic high-strength and high-modulus carbon fiber reinforced thermoplastic polyetherketone (PEKK) resin matrix composites were further analyzed. The results show that when the monomer molar ratio of BPADA to TPE-R is 1: 1,the synthesized thermoplastic sizing agent not only has a uniform molecular weight distribution, but also has excellent thermal stability, e. g. its thermal weight loss is only 5% with the temperature up to 554 ℃. After sizing, the surface O/C ratio is increased from 0.08 to 0.18 (increased by 125%). Besides, the fiber strength is slightly increased and the modulus is almost unchanged. More importantly, the interfacial performance of the composites is significantly improved after sizing treatment, and the interlaminar shear strength of the HMCF/ PEKK composites can be improved from 38.5 MPa to a maximum of 59.4 MPa with an increase of up to 54.3%. |
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来源
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材料工程
,2023,51(5):174-182 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2022.000001
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关键词
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上浆剂
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复合材料
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聚酰亚胺
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聚醚酮酮
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地址
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1.
太原科技大学材料科学与工程学院, 太原, 030027
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中国科学院宁波材料技术与工程研究所, 碳纤维制备技术国家工程实验室, 浙江, 宁波, 315201
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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化学工业 |
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基金
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浙江省宁波市自然科学基金重点项目
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宁波市科技创新2025重大专项
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浙江省重点研发计划
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文献收藏号
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CSCD:7480434
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