低温等离子体刻蚀和接枝对芳纶纤维/环氧复合材料力学性能的影响

TM215.92; 芳纶纤维增强型复合材料在电气绝缘领域应用前景广阔,但芳纶纤维和树脂相容性差,制约了产品性能.为改善界面性能,采用等离子体刻蚀法和等离子体接枝法改性芳纶表面,研究两种方法对芳纶纤维本体、芳纶纤维/环氧复合材料界面性能和其NOL环力学性能的影响.结果表明:两种方法都提升了芳纶纤维/环氧复合材料界面剪切强度.等离子体刻蚀法降低了NOL环拉伸强度,而等离子体接枝法提升了拉伸强度.与改性前相比,采用90 W空气常压介质阻挡放电等离子体处理、1%2,4-甲苯二异氰酸酯接枝后,芳纶纤维/环氧复合材料界面剪切强度由31.7 MPa提升至36.4 MPa,拉伸破坏载荷由23.6 kN提升至2...

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Published in	绝缘材料 Vol. 56; no. 12; pp. 69 - 77
Main Authors	陈铄, 杜怡君, 全晓曦, 闻一鸣, 邓禹
Format	Journal Article
Language	Chinese
Published	中国电力科学研究院有限公司,北京 100192 2023
Subjects	motor insulation 芳纶纤维 aramid fiber composite 复合材料 low temperature plasma grafting 电机绝缘接枝改性低温等离子体
Online Access	Get full text
ISSN	1009-9239
DOI	10.16790/j.cnki.1009-9239.im.2023.12.009

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Abstract	TM215.92; 芳纶纤维增强型复合材料在电气绝缘领域应用前景广阔,但芳纶纤维和树脂相容性差,制约了产品性能.为改善界面性能,采用等离子体刻蚀法和等离子体接枝法改性芳纶表面,研究两种方法对芳纶纤维本体、芳纶纤维/环氧复合材料界面性能和其NOL环力学性能的影响.结果表明:两种方法都提升了芳纶纤维/环氧复合材料界面剪切强度.等离子体刻蚀法降低了NOL环拉伸强度,而等离子体接枝法提升了拉伸强度.与改性前相比,采用90 W空气常压介质阻挡放电等离子体处理、1%2,4-甲苯二异氰酸酯接枝后,芳纶纤维/环氧复合材料界面剪切强度由31.7 MPa提升至36.4 MPa,拉伸破坏载荷由23.6 kN提升至25.1 kN,拉伸强度修正系数从62.8%提升至72.1%,芳纶纤维的力学性能得到更加充分的利用.
AbstractList	TM215.92; 芳纶纤维增强型复合材料在电气绝缘领域应用前景广阔,但芳纶纤维和树脂相容性差,制约了产品性能.为改善界面性能,采用等离子体刻蚀法和等离子体接枝法改性芳纶表面,研究两种方法对芳纶纤维本体、芳纶纤维/环氧复合材料界面性能和其NOL环力学性能的影响.结果表明:两种方法都提升了芳纶纤维/环氧复合材料界面剪切强度.等离子体刻蚀法降低了NOL环拉伸强度,而等离子体接枝法提升了拉伸强度.与改性前相比,采用90 W空气常压介质阻挡放电等离子体处理、1%2,4-甲苯二异氰酸酯接枝后,芳纶纤维/环氧复合材料界面剪切强度由31.7 MPa提升至36.4 MPa,拉伸破坏载荷由23.6 kN提升至25.1 kN,拉伸强度修正系数从62.8%提升至72.1%,芳纶纤维的力学性能得到更加充分的利用.
Abstract_FL	The aramid fiber(AF)reinforced composite has a wide application prospect in the field of electrical insulation,but the product performance is restricted by the poor adhesion between AF and resin matrix.In order to improve their interfacial performance,the plasma etching method and plasma grafting method were used to modify the AF surface.The influence of two methods on the interfacial properties of aramid fibers and AF/epoxy composites,as well as the mechanical properties of the AF/epoxy composites NOL ring were studied.The results show that both two methods improve the shear strength of the AF/epoxy interface.The plasma etching method reduces the tensile strength of the NOL rings,while the plasma grafting method increases the tensile strength of the NOL rings.Compared with the unmodified AF,the shear strength of the AF/epoxy interface which treated with 90 W air dielectric barrier discharge plasma followed by 1% 2,4-toluene diisocyanate increases from 31.7 MPa to 36.4 MPa,the tensile strength increases from 23.6 kN to 25.1 kN,and the correction coefficient K value of tensile strength increases from 62.8% to 72.1%,indicating that the mechanical properties of aramid fiber are made full use.
Author	闻一鸣全晓曦邓禹杜怡君陈铄
AuthorAffiliation	中国电力科学研究院有限公司,北京 100192
AuthorAffiliation_xml	– name: 中国电力科学研究院有限公司,北京 100192
Author_FL	DU Yijun DENG Yu WEN Yiming QUAN Xiaoxi CHEN Shuo
Author_FL_xml	– sequence: 1 fullname: CHEN Shuo – sequence: 2 fullname: DU Yijun – sequence: 3 fullname: QUAN Xiaoxi – sequence: 4 fullname: WEN Yiming – sequence: 5 fullname: DENG Yu
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Title	低温等离子体刻蚀和接枝对芳纶纤维/环氧复合材料力学性能的影响
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