News
10
2022
-
01
Distribution of surface material structure of composite insulators
The outer insulation surface of composite insulators is formed by placing the mixed outer insulation material rubber into a fixed shaped mold cavity, heating and pressurizing vulcanization. The surface material structure distribution is different from the internal material structure distribution. If the surface layer is randomly distributed with white carbon black reinforcing agent particles, due to the intermediate effect of the hydroxyl groups on the outer surface of the white carbon black reinforcing agent and the anti structuring agent hydroxyl silicone oil, there are a considerable thickness of siloxane molecules on the surface of the white carbon black reinforcing agent particles. The outer surface has normal conformational active chain segments of siloxane molecules and a large number of free state ends of siloxane molecules with organic base heads. For the randomly distributed aluminum hydroxide and a small amount of other filler particles with corresponding large particle sizes on the surface layer, At this time, its surface is arranged in a two-dimensional linear siloxane molecule with adhesive orientation and intermolecular crosslinking point interactions, It is impossible to have molecular active segments and very few free state ends of siloxane molecules. Due to factors such as mold heating, pressure vulcanization process, and the fluidity of gel like siloxane molecules, it is impossible to have particle protrusions on the surface of the formed outer edge material due to the presence of aluminum hydroxide and a small amount of other filler particles with particularly large particle sizes on its surface. It is most likely that the top of the particles will be parallel to the surface of the silicone rubber material.
Author:
The outer insulation surface of composite insulators is formed by placing the mixed outer insulation material rubber into a fixed shaped mold cavity, heating and pressurizing vulcanization. The surface material structure distribution is different from the internal material structure distribution. If the surface layer is randomly distributed with white carbon black reinforcing agent particles, due to the intermediate effect of the hydroxyl groups on the outer surface of the white carbon black reinforcing agent and the anti structuring agent hydroxyl silicone oil, there are a considerable thickness of siloxane molecules on the surface of the white carbon black reinforcing agent particles. The outer surface has normal conformational active chain segments of siloxane molecules and a large number of free state ends of siloxane molecules with organic base heads. For the randomly distributed aluminum hydroxide and a small amount of other filler particles with corresponding large particle sizes on the surface layer, At this time, its surface is arranged in a two-dimensional linear siloxane molecule with adhesive orientation and intermolecular crosslinking point interactions, It is impossible to have molecular active segments and very few free state ends of siloxane molecules. Due to factors such as mold heating, pressure vulcanization process, and the fluidity of gel like siloxane molecules, it is impossible to have particle protrusions on the surface of the formed outer edge material due to the presence of aluminum hydroxide and a small amount of other filler particles with particularly large particle sizes on its surface. It is most likely that the top of the particles will be parallel to the surface of the silicone rubber material.
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