宇航材料工艺2018，Vol.48Issue(2)：13-19,7.DOI:10.12044/j.issn.1007-2330.2018.02.003
多巴胺表面改性反应时间对镀银玻璃微球及导电硅橡胶性能的影响
Effect of Dopamine Surface Modification Time on Properties of Silver Coated Silica Microsphere and Conductive Silicone Rubber
李润源 1王建月 1王姝瑛 1于焕光 1侯杰1
作者信息
摘要
Abstract
The surface modification of silver coated silica microsphere (SiO2/Ag) was carried out by using excellent bonding properties of polydopamine (PDA) to improve the mechanical properties of conductive silicone rubber without affecting the conductivity of conductive silicone rubber.The results show that PDA surface modification can improve the dispersion of SiO2/Ag in silicone rubber.By controlling the reaction time,controllable thickness of PDA layer can be achieved so that controlling the conductive silicon rubber conductivity can be achieved.The Payne's effect,loss angle of tangent (tanδ),optimum curing time (T90),contact angle and tensile strength of conductive silicone rubber filled with modified SiO2/Ag reach the optimum state when the PDA coating time is 8 h and electrical performance meets application standards.关键词
镀银玻璃微球/多巴胺/表面改性/导电硅橡胶/分散性Key words
Silver coated silica microsphere/Dopamine/Surface modification/Conductive silicone rubber/Dispersibility分类
通用工业技术引用本文复制引用
李润源,王建月,王姝瑛,于焕光,侯杰..多巴胺表面改性反应时间对镀银玻璃微球及导电硅橡胶性能的影响[J].宇航材料工艺,2018,48(2):13-19,7.
