电压稳定剂对PP/弹性体共混物直流击穿强度影响

doi:10.11985/2022.01.029

电气工程学报 ›› 2022, Vol. 17 ›› Issue (1): 234-243.doi: 10.11985/2022.01.029

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电压稳定剂对PP/弹性体共混物直流击穿强度影响

孟飞¹(), 邵满智¹, 牛越², 胡巍³, 李春阳¹(), 赵洪¹

1.哈尔滨理工大学工程电介质及其应用技术教育部重点实验室哈尔滨 150080
2.国网内蒙古东部电力有限公司赤峰供电公司赤峰 024000
3.国网江西省电力有限公司南昌供电分公司南昌 330069

收稿日期:2021-07-21 修回日期:2021-11-01 出版日期:2022-03-25 发布日期:2022-05-06
通讯作者: 李春阳 E-mail:y1017mf@163.com;lichunyang_hust@163.com
作者简介:孟飞,男,1996年生,硕士研究生。主要研究方向为高压电缆用聚合物绝缘材料。E-mail： y1017mf@163.com

Influence of Voltage Stabilizer on the DC Breakdown Strength of PP/ Elastomer Blends

MENG Fei¹(), SHAO Manzhi¹, NIU Yue², HU Wei³, LI Chunyang¹(), ZHAO Hong¹

1. Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin 150080
2. Chifeng Power Supply Company, State Grid Inner Mongolia Eastern Electric Power Co., Ltd., Chifeng 024000
3. Nanchang Power Supply Company, State Grid Jiangxi Electric Power Co., Ltd., Nanchang 330069

Received:2021-07-21 Revised:2021-11-01 Online:2022-03-25 Published:2022-05-06
Contact: LI Chunyang E-mail:y1017mf@163.com;lichunyang_hust@163.com

摘要/Abstract

摘要：

弹性体聚合物可以用于改善聚丙烯(PP)绝缘材料的韧性,但会对材料原有的耐电性能产生影响;电压稳定剂常用于改善交联聚乙烯电缆绝缘的耐电性能,但能否在PP基绝缘材料中发挥作用尚不明确。研究两种弹性体聚合物(POE、SEBS)对PP力学性能和直流击穿性能的影响,选出改善PP力学性能的较优组分;之后分别研究电压稳定剂对PP、弹性体及其两者共混物直流击穿强度的影响。结果表明,POE和SEBS两种弹性体可增韧PP,但随着其添加量增加,PP直流击穿强度下降。三种电压稳定剂均能提高纯PP的直流耐电性能,其中添加0.4 phr的AOHBP提高比例最高,其值为34.6%。然而,三种电压稳定剂均不能提高弹性体以及PP/弹性体共混绝缘材料的直流击穿场强,电压稳定剂作用效果受聚合物基体的影响较大。

关键词: 聚丙烯绝缘, 热塑性弹性体, 电压稳定剂, 共混改性, 直流击穿强度

Abstract:

Elastomer polymer can be used to improve the toughness of polypropylene (PP) insulation material, but it may weaken the electrical properties of PP. Voltage stabilizer has been used to improve the electrical properties of XLPE, but it is not clear whether it can play a role in PP based insulation materials. The effects of two elastomer polymers (POE and SEBS) on the mechanical and DC breakdown properties of PP are studied. The influence of voltage stabilizer on DC breakdown strength is investigated with the optimal components, which are selected by the mechanical properties. The results show that POE and SEBS can toughen PP, but the DC breakdown strength of the composites decreases with the increase of POE and SEBS. All the three voltage stabilizers can improve the electrical properties of pure PP, especially the AOHBP realized an increment of 34.6% when 0.4 phr is doped. However, none of the three voltage stabilizers can improve the DC breakdown strength of elastomers or PP/elastomer blends, and the effect of voltage stabilizers is significantly affected by the polymer matrix.

Key words: Polypropylene insulation, thermoplastic elastomer, voltage stabilizer, blending modification, DC breakdown strength

中图分类号:

TM85

孟飞, 邵满智, 牛越, 胡巍, 李春阳, 赵洪. 电压稳定剂对PP/弹性体共混物直流击穿强度影响[J]. 电气工程学报, 2022, 17(1): 234-243.

MENG Fei, SHAO Manzhi, NIU Yue, HU Wei, LI Chunyang, ZHAO Hong. Influence of Voltage Stabilizer on the DC Breakdown Strength of PP/ Elastomer Blends[J]. Journal of Electrical Engineering, 2022, 17(1): 234-243.

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参考文献 20

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材料种类	断裂伸长率 (%)	拉伸断裂应力/ MPa	拉伸屈服应力/ MPa
PP	415.2	16.19	14.8
PP+20POE	302.9	13.60	11.0
PP+30POE	330.8	14.10	11.6
PP+40POE	383.8	9.50	6.9
PP+20SEBS	319.5	15.70	12.3
PP+30SEBS	352.8	16.40	12.4
PP+40SEBS	411.0	17.10	8.3

电压稳定剂对PP/弹性体共混物直流击穿强度影响

Influence of Voltage Stabilizer on the DC Breakdown Strength of PP/ Elastomer Blends

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