铠装硅酸钾胶黏剂在特殊工况下的绝缘失效分析

doi:10.16085/j.issn.1000-6613.2020-0577

化工进展 ›› 2020, Vol. 39 ›› Issue (S2): 300-304.DOI: 10.16085/j.issn.1000-6613.2020-0577

铠装硅酸钾胶黏剂在特殊工况下的绝缘失效分析

赵宇航(), 李依帆()

神华准能资源综合开发有限责任公司研发中心，内蒙古鄂尔多斯 010399

收稿日期:2020-04-13 出版日期:2020-11-20 发布日期:2020-11-17
通讯作者: 李依帆
作者简介:赵宇航（1983—），男，高级工程师，博士，研究方向为粉煤灰提取氧化铝工业设备中材料腐蚀与防护。E-mail：yuhangzhao8310@163.com。

Failure insulation of armored potassium silicate adhesive in special condition

Yuhang ZHAO(), Yifan LI()

The Research Center of ShenHua Zhunneng Comprehensive Resource Development Co. , Ltd. , Erdos 010399, Inner Mongolia, China

Received:2020-04-13 Online:2020-11-20 Published:2020-11-17
Contact: Yifan LI

摘要/Abstract

摘要：

为探索铠装硅酸盐胶黏剂在特殊环境下的绝缘特性，本文制备不同碱金属离子含量及固液配比的硅酸钾胶黏剂样品，将其固封于不锈钢管体中，在潮湿环境与高温条件下分析其绝缘性能并进行失效分析。结果表明：在潮湿环境中，胶体中的固液配比及碱金属（K⁺）含量会影响铠装试样的整体绝缘性能，当固液配比为2∶1时，硅酸钾与硅溶胶质量比在（2～1）∶1之间时，其绝缘效果较佳；在高温条件下，随着温度的升高及保温时间的延长，铠装壳体中部分合金元素渗入胶体表面，造成样品绝缘性能较大幅度的下降。

关键词: 硅酸钾胶黏剂, 特殊工况, 绝缘失效

Abstract:

The properties of insulation of armored silicate adhesive in special conditions were studied in this article. The adhesives with different K⁺ concentration and ratio of liquid and solid were solid sealed into stainless steel casing. The insulation of samples in the environments of high humidity and temperature were measured. The results indicate that in a humidity environment, the ratio of liquid and solid in colloid and the potassium ion concentration affect the insulation properties of samples. When the ratio of solid and liquid is 2/1 and the quality between potassium silicate and silica sol is (2—1)∶1, the insulating performances good properties. In the condition of high temperature, the insulation properties of samples decrease with the increase of heating temperature and holding time. During the heating process, some alloying elements ofarmored shell move into the colloid surface which results in decrease of insulation properties.

Key words: potassium silicate adhesive, special condition, insulation failure

中图分类号:

TQ436

赵宇航, 李依帆. 铠装硅酸钾胶黏剂在特殊工况下的绝缘失效分析[J]. 化工进展, 2020, 39(S2): 300-304.

Yuhang ZHAO, Yifan LI. Failure insulation of armored potassium silicate adhesive in special condition[J]. Chemical Industry and Engineering Progress, 2020, 39(S2): 300-304.

图/表 7

表1 液相的组分

编号	成分	质量比
a	硅酸钾溶液
b	a+e	3∶1
c	a+e	2∶1
d	a+e	1∶1
e	硅溶胶溶液

表2 液固成分配比表

样品编号	成分	质量比	样品编号	成分	质量比
1	A+a	3∶1	5	A+c	2∶1
2	A+a	2∶1	6	A+d	2∶1
3	A+a	1∶1	7	A+e	2∶1
4	A+b	2∶1

图1 试样1、2、3的绝缘性测量与立式显微形貌

图2 试样在90%湿度下绝缘性测量与表面形貌

图3 不同保温条件下试样随温度变化的绝缘阻值

图4 试样7在不同温度与保温条件下的胶体外表面能谱分析

图5 试样在高温条件下的电流导通模型

参考文献 14

1	KOUASSI S S, TOGNONVI M T, SORO J, et al. Consolidation mechanism of materials obtained from sodium silicate solution and silica-based aggregates[J]. Journal of Non-Crystalline Solids, 2011, 357(15): 3013-3021.
2	VOITOVICH V A. Curing agents of silicate based adhesives[J].Polymer Science: Series D, 2010, 3(3): 174-176.
3	MARTIN C, ZDENEK C, ADAM S, et al. Behaviour and thermal dilation effects of alumino-silicate adhesives intended for joining of high-temperature resistant sandwich structures[J]. Journal of the European Ceramic Society, 2017, 37: 2209-2218
4	田建中. 无机胶粘剂的发展状况[J]. 精细化工, 1989, 6(3): 15-18.
	TIAN Jianzhong, Developments of organic adhesives[J]. Fine Chemicals, 1989, 6(3): 15-18.
5	RASHKEEV S N, GLAZOFF M V. Ultra-high temperature steam corrosion of complex silicates for nuclear applications: a computational study[J]. Nuclear Materials, 2014, 444: 56-59.
6	杜洪彦, 邱富荣, 林昌健. 混凝土的腐蚀机理与新型防护方法[J]. 腐蚀科学与防护技术, 2001, 13(3): 157-161.
	DU Hongyan,QIU Furong, LIN Changjian, Corrosion mechanism of concrete and new protection methods[J]. Corrosion Science and Protection Technology, 2001, 13(3): 157-161
7	UENO S, JAYASEELAN D D, TATSUKI O. Vapor corrosion behavior of lutetium silicates at high temperature[J]. Ceramics International, 2006, 32: 451.
8	田和保, 张超灿. 硅溶胶与硅酸钾混合物体系单组分涂料的稳定性[J]. 涂料工业, 2010, 40(60): 13-17.
	TIAN Hebao, ZHANG Chaocan. Stability of mixed silica sol and potassium (sodium) silicate in one-component coatings[J]. Paint＆Coatings Industry, 2010, 40(60): 13-17.
9	CHEN Yifu, LI Jie, TAN Yanjun, et al. Achieving highly electrical conductivity and piezoresistive sensitivity in polydimethylsiloxane/multi-walled carbon nanotube composites via the incorporation of silicon dioxide micro-particles[J]. Composites Science and Technology, 2019, 16: 41-48.
10	WELDON D G. Failure analysis of paints and coatings [M]. New York: John Wiley & Sons Ltd., 16.
11	赵宇航，段德莉，张月来, 等.硅酸盐无机胶釉剂的粘结和绝缘性能[J]. 材料研究学报, 2012, 26(6): 667-672.
	ZHAO Yuhang, DUAN Deli, ZHANG Yuelai, et al. Bonding and insulating properties of silicate inorganic adhesive[J]. Chinese Journal of Materials Research, 2012，26(6): 667-672.
12	王树根，赵修志. 矿物的导电性和固体绝缘材料[J]. 矿产保护与利用, 1991(2): 39-43.
	WANG Shugen, ZHAO Xiuzhi. Conductivity of minerals and solid insulation materials[J]. Conservation and Utilization of Mineral Resources, 1991(2): 39-43.
13	BELOVAA E V, KOLYAGINB Y A. Structure and glass transition temperature of sodium silicate glasses doped with iron[J]. Non-Crystalline Solids, 2015, 423: 50-54.
14	林小玲，郑敏. 电工电子学[M]. 北京: 机械工业出版社, 2013: 22.
	LIN Xiaoling, ZHENG Min, Electroelectronics[M]. Beijing: China Machine Press, 2013: 22.

[1]	鲁道欢, 王斌, 黄月文. 耐高温丙烯酸酯类压敏胶的研究进展[J]. 化工进展, 2019, 38(05): 2269-2275.
[2]	贺贝贝, 解一军. 紫外光本体聚合制备丙烯酸酯压敏胶[J]. 化工进展, 2017, 36(12): 4508-4512.

铠装硅酸钾胶黏剂在特殊工况下的绝缘失效分析

Failure insulation of armored potassium silicate adhesive in special condition

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 7

参考文献 14

相关文章 2

编辑推荐

Metrics

本文评价