A kind of material and manufacturing method for cleaning surface contamination of room temperature vulcanization type RTV coating
A room temperature vulcanization and coating technology, which is applied to building insulation materials, building structures, building components, etc., can solve problems such as adverse effects on insulation performance, contamination of RTV coating surfaces, and reduced performance of new coatings, achieving low cost, Easy construction, good decontamination effect
Active Publication Date: 2019-08-27
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology
After the RTV coating is aged or damaged, it needs to be recoated. At present, it is generally used to directly spray RTV on the old coating. However, due to the presence of contamination on the surface of the RTV coating, it will affect the adhesion of the new coating to the old coating after recoating. performance, thereby reducing the performance of the new coating after overcoating, and adversely affecting the overall insulation performance of the equipment in extreme cases such as arc discharge
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[0024] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.
[0025] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...
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Abstract
The invention discloses a material for removing dirt on the surface of an RTV coating. The material is characterized in that the material is formed b mixing a polymer matrix, a tackifier, a filler and an antioxidant, wherein the tackifier is used for increasing the bonding strength of the material; the filler is used for shortening the solidification time; and the antioxidant is used for preventing ageing of the material. The invention also discloses a manufacturing method of the material for removing dirt on the surface of the RTV coating. The manufacturing method comprises the following steps: placing all above materials in an internal mixer, and blending all the materials; placing the obtained mixture in a compacting forming machine, and compacting the mixture; and carrying out constant pressure cooling, and discharging the obtained material from a die. The invention further discloses a method for removing dirt on the surface of the RTV coating. The removal method comprises the following steps: placing the material on the surface of the RTV coating; heating the material for a predetermined time to make the dirt on the surface of the RTV coating be adsorbed by the material; and waiting for temperature decreasing after the heating is completed, and taking away the material to remove the dirt on the surface of the RTV coating.
Description
technical field [0001] The invention relates to the field of high-voltage external insulation, and more specifically, relates to a material and a manufacturing method for removing contamination on the surface of a room temperature vulcanization type RTV coating. Background technique [0002] In order to improve the anti-pollution flashover capability of power transmission and transformation equipment, the power sector generally adopts the measure of spraying RTV anti-pollution flashover coatings on porcelain or glass insulating surfaces. After the RTV coating has been in operation for a long time, the surface area is seriously polluted, and the dirt is closely combined with the coating, so it is difficult to remove the dirty layer by simple cleaning methods. Since the insulation material of porcelain or glass insulators is inorganic, its service life can reach 50 years in the operating environment; while the RTV anti-pollution flashover coating is an organic material, it wil...
Claims
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IPC IPC(8): C08L23/08C08L57/02C08L91/06C08L95/00C08L23/16C08L71/02C08L53/02C08L75/04C08L93/04C08K3/26C08K5/134C08K5/12
Inventor 万小东吴仲岿胡伟林晨霍锋南敬刘琴李瑶琴
Owner CHINA ELECTRIC POWER RES INST