等离子氟化玻璃纤维增强玻璃纤维增强聚合物复合材料的表面绝缘性,Polymer Composites

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等离子氟化玻璃纤维增强玻璃纤维增强聚合物复合材料的表面绝缘性
Polymer Composites ( IF 4.8 ) Pub Date : 2022-07-09 , DOI: 10.1002/pc.26890
Jingwei Li ₁ , Qijun Duan ₁ , Guowei Xia ₁ , Zijian Wan ₁ , Guohua Yin ₁ , Jun Xie ₁ , Qing Xie ₁

Affiliation

玻璃纤维增强聚合物（GFRP）是工业生产中广泛使用的复合材料。本文采用介质阻挡放电（DBD）对玻璃纤维（GF）进行氟化，制备了不同氟化时间和不同氟化GF层数的GFRP复合材料，以提高表面绝缘性能。通过扫描电子显微镜（SEM）和X射线光电子能谱（XPS）分析了等离子体氟化对GF的影响，包括表面形貌和化学成分。此外，对上述复合材料的表面电性能进行了实验研究。结果表明，改性GFRP的闪络电压比原样提高29.84%。通过分析电荷耗散和陷阱，推测等离子体氟化可以提高复合材料的陷阱能级，从而抑制载流子在表面的迁移，提高闪络电压。此外，可以通过增加氟化GF层的数量来改善复合材料的内部结构，从而加速电荷沿体的耗散，从而从两个方面提高复合材料的表面绝缘性能。

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Enhancing surface insulation of glass fiber reinforced polymer composites by plasma fluorinating glass fiber

Glass fiber reinforced polymer (GFRP) is a widely used composite material in industrial production. In this article, glass fiber (GF) was fluorinated by dielectric barrier discharge (DBD), and the GFRP composites made of GF with different fluorination time and various numbers of fluorinated GF layers were prepared to improve the surface insulation property. The effect of plasma fluorination on GF was analyzed by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), including the surface morphology and chemical composition. In addition, the surface electrical properties of the above composites were investigated experimentally. The results show that the flashover voltage of modified GFRP is 29.84% higher than that of the original sample. By analyzing the charge dissipation and trap, it is inferred that plasma fluorination can raise the trap energy level of the composites, therefore suppressing the carrier migration on the surface and increasing the flashover voltage. Furthermore, the internal structure of composites can be improved by increasing the number of fluorinated GF layers, which accelerates the charge dissipation along the body, thus enhancing the surface insulation properties of the composites in both ways.

更新日期：2022-07-09

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