文章摘要
Preparation and Performance Analysis of Silane Couple Agent KH570 Modified Kaolin/Acrylate Composite Pressure Sensitive Adhesive
Received:March 17, 2021  Revised:March 17, 2021
DOI：10.12136/j.issn.1000-890X.2022.09.0674
Key Words: acrylate；pressure sensitive adhesive；modified kaolin；silane coupling agent KH570； insulator；decontamination；bonding performance
Author NameAffiliationE-mail
CHU Jinwei* Ultra High Voltage Transmission Company of China Southern Power Grid Co.，Ltd 36943470@qq.com 
WAN Xiaodong China Electric Power Research Institute Co.，Ltd  
WEI Xiaoxing Ultra High Voltage Transmission Company of China Southern Power Grid Co.，Ltd  
NAN Jing China Electric Power Research Institute Co.，Ltd  
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Abstract:
      In this study，the surface functionalized kaolin with allyl function groups （kaolin-KH570） was prepared by modification of the hydroxylated kaolin（kaolin-OH） using silane coupling agent KH570， and the kaolin-KH570/acrylate composite pressure sensitive adhesive （kaolin-KH570/acrylate PSA） which could be used as an efficient cleaner for the surface of insulators was produced by in situ polymerization of acrylate monomers with kaolin-KH570. The results showed that，when the mass fraction of kaolin-KH570 was 1. 5%，the bonding performance of kaolin-KH570/acrylate PSA was the best，and compared with acrylate PSA without kaolin，its initial tackiness，180° peel strength and 23 ℃ shear adhesion were increased by 35. 7%，30. 7% and 128. 6%，respectively. After kaolin-KH570/acrylate PSA film was used to clean the surface of the insulators，the cleaning rate and salt removal rate of the insulator surface could reach 85. 8% and 80. 6%，respectively，at the same time the hydrophobicity could be restored from HC6 to HC1，insulation property could be improved，and the operational reliability of the composite insulation equipment under dirty conditions could be further improved.
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