Coating and application thereof

Abstract

The invention relates to a pipeline coating containing an asphalt composition. The coating is prepared from the following components in percentage by weight: 40 to 70 percent of asphalt, 10 to 30 percent of styrene-butadiene rubber, 1 to 20 percent of glass flake and 5 to 40 percent of epoxy resin. The invention also provides a pipeline coated with the pipeline coating, a method for coating the pipeline by using the pipeline coating and a purpose of the asphalt composition as the pipeline coating. The production method of the pipeline coating provided by the invention is simple; the pipeline coating not only has excellent impact resistance and flexibility, but also shows excellent high-temperature characteristic and adhesive force.

Description

technical field [0001] The invention relates to pipeline coatings, in particular to a coating and its application, in particular to a method for coating pipelines and the use of asphalt compositions as pipeline coatings. Background technique [0002] Pipeline is an effective facility for long-distance or short-distance transportation of gas, liquid and slurry materials with minimal impact on the environment. Long and large diameter pipes are usually made of corrosion resistant carbon steel based materials, iron based materials. The corrosion process is a naturally occurring process in which iron is transformed into oxides by the action of water and oxygen from the air. This process affects almost all ferrous structures above, below ground and in water. Visible and above-ground structural members may be protected by application of ordinary paint or some other form of coating. However, lines are seldom visible, so they must be protected from the environment with a suitable ...

AI Technical Summary

Problems solved by technology

Although the pipe coating of WO 00 / 55271 exhibits excellent high temperature performance, its use requires a premixing step and the presence of carbon black

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