白炭黑含量对硅橡胶结构和憎水恢复性影响
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- 英文论文题名：Effect of Fumed Silica Content on the Microstructure and Hydrophobicity Recovery of Silicon Rubber
- 论文作者：王康 ; 王建国 ; 郑峰 ; 方鹏飞 ; 彭向阳 ; 许志海
- 英文论文作者：Wang Kang ; Wang Jianguo ; Zheng Feng ; Fang Pengfei ; Peng Xiangyang ; Xu Zhihai ; School of Electrical Engineering Wuhan University ; State Grid Jibei Electric Power Company Limited Electric Power Research Institute ; Department of Physics & Hubei Nuclear-Solid Physics Key Laboratory Wuhan University ; Guangdong Power Grid Company Electric Power Research Institute
- 年：2016
- 作者机构：武汉大学电气工程学院;国网冀北电力有限公司电力科学研究院;武汉大学物理学院湖北核固体研究室;广东电网公司电力科学研究院;
- 论文关键词：憎水恢复 ; 硅橡胶 ; 白炭黑 ; 正电子寿命谱 ; 等离子体
- 英文论文关键词：Hydrophobicity recovery ; silicon rubber ; fumed silica ; positron lifetime spectra ; plasma
- 会议召开时间：2016-11-14
- 会议录名称：2016年全国无机硅化物行业年会暨创新发展研讨会论文集
- 语种：中文
- 分类号：TQ333.93
- 学会代码：WJYG
- 会议名称：2016年全国无机硅化物行业年会暨创新发展研讨会
- 会议地点：中国河南郑州
- 主办单位：中国无机盐工业协会无机硅化物分会
- 学会名称：中国无机盐工业协会无机硅化物分会
- 页数：7
- 文件大小：664k
- 原文格式：O
- 会议级别：全国
摘要
憎水恢复性是硅橡胶的基本特性,白炭黑作为补强剂是复合绝缘子硅橡胶的基本原料。为研究白炭黑含量对硅橡胶结构和憎水恢复性的影响,炼制了不同含量白炭黑的硅橡胶试样,并对试样进行了正电子寿命谱测试,结果表明,白炭黑含量的增多,使得增加而I_3与I_4均下降,其原因是白炭黑含量的增多使得硅橡胶中物理交联点变多,同时也使得白炭黑颗粒更容易团聚,导致更多的正电子在白炭黑中湮没。对试样进行Ar等离子体老化5 min,测量其憎水恢复速度,结果表明白炭黑含量的增加会使硅橡胶憎水恢复速度下降,白炭黑加入过多会影响硅橡胶憎水恢复性能,导致使用寿命变短。
Hydrophobicity recovery is an important characteristic of silicon rubber.Silica as reinforcing filler is the basic material of silicon rubber composite insulators.In order to study the microstructure and hydrophobicity recovery of silicon rubber with different contents of silica,the silicon rubber samples with different quality contents were refined.The results of the positron lifetime spectra showed fumed silica interacted with rubber chains.Since fumed silica could be served as physical cross-link junction,when the content of fumed silica increased,the cross-link degree of whole system also increased.On the other hand,more fumed silica resulted in bigger size agglomeration.Thus more positrons annihilated in fumed silica,and suppressed the production of Ps.So t3 increased while I_3 and I_4 both decreased.Otherwise,after 5 min Ar plasma treatment,the results of the hydrophobicity recovery showed that increasing fumed silica would decrease hydrophobic recovery speed.But too much fumed silica will affect the hydrophobicity recovery of silicone rubber and shorten the lifetime.
Hydrophobicity recovery is an important characteristic of silicon rubber.Silica as reinforcing filler is the basic material of silicon rubber composite insulators.In order to study the microstructure and hydrophobicity recovery of silicon rubber with different contents of silica,the silicon rubber samples with different quality contents were refined.The results of the positron lifetime spectra showed fumed silica interacted with rubber chains.Since fumed silica could be served as physical cross-link junction,when the content of fumed silica increased,the cross-link degree of whole system also increased.On the other hand,more fumed silica resulted in bigger size agglomeration.Thus more positrons annihilated in fumed silica,and suppressed the production of Ps.So t3 increased while I_3 and I_4 both decreased.Otherwise,after 5 min Ar plasma treatment,the results of the hydrophobicity recovery showed that increasing fumed silica would decrease hydrophobic recovery speed.But too much fumed silica will affect the hydrophobicity recovery of silicone rubber and shorten the lifetime.
引文
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