阅读说明：本技术 一种地下电缆管道外部涂料的配方 (Formula of external coating for underground cable pipeline ) 是由 朱瑞琪 于 2018-06-19 设计创作，主要内容包括：本发明公开了一种地下电缆管道外部涂料的配方,包括以下组分：基料100-150份、抗氧剂1-5份、增塑剂10-15份、石灰粉20-30份。所述基料为环氧聚氨酯树脂和聚乙烯按照质量比2:1混合的物质；其制备出的涂料防腐能力强、无污染、粘性好、速干。(The invention discloses a formula of an external coating for an underground cable pipeline, which comprises the following components: 100-150 parts of base material, 1-5 parts of antioxidant, 10-15 parts of plasticizer and 20-30 parts of lime powder. The base material is a mixture of epoxy polyurethane resin and polyethylene according to the mass ratio of 2: 1; the prepared paint has the advantages of strong corrosion resistance, no pollution, good viscosity and quick drying.)

1. The formula of the external coating for the underground cable duct is characterized by comprising the following components: 100-150 parts of base material, 1-5 parts of antioxidant, 10-15 parts of plasticizer and 20-30 parts of lime powder.

2. The formulation of an exterior coating for a subterranean cable duct of claim 1, wherein: the base material is a mixture of epoxy polyurethane resin and polyethylene according to the mass ratio of 2: 1.

3. The formulation of an exterior coating for a subterranean cable duct of claim 1, wherein: the antioxidant is one or more of hindered phenols, phosphites and thioketones.

4. The formulation of an exterior coating for a subterranean cable duct of claim 1, wherein: the plasticizer is one or more of phthalate, fatty acid ester and alkyl sulfonate.

5. The formulation of an exterior coating for a subterranean cable duct of claim 1, wherein: the particle size of the lime powder is 300-400 meshes.

Technical Field

The invention relates to a coating, in particular to a formula of an external coating of an underground cable pipeline.

Background

Description of corrosion phenomena of pipes corrosion is understood to be a chemical reaction of the material in the environment in which it is located, which reaction can cause loss of pipe material and lead to failure of the pipe components and even the entire pipe system. In a pipeline system, corrosion is defined as: depending on the particular pipeline environment, chemical reactions, electrochemical reactions, and microbial attack that occur in all metallic and non-metallic materials of the pipeline system can lead to damage and loss of pipeline structure and other materials. In addition to direct damage to the material from corrosion, pipe damage caused by corrosion products can also be considered corrosion damage. Whether the pipeline corrosion will spread or not depends on the erosive power of the corrosive medium and the corrosion resistance of the existing pipeline material. The temperature, concentration of corrosive media, and stress conditions all affect the extent of corrosion of the pipe.

And (3) protection technologies for preventing pipelines from being corroded by soil, air and transport media (petroleum, natural gas and the like). Pipelines for conveying oil and gas are mostly in a complex soil environment, and conveyed media are also corrosive, so that the inner wall and the outer wall of the pipeline can be corroded. Once the pipeline is corroded and perforated, oil and gas are lost, which not only interrupts transportation, but also pollutes the environment and even can cause fire hazard and causes harm. According to the statistics of the U.S. pipe industry, direct losses due to corrosion were as much as $ 6 billion in 1975, and the corrosion protection of power lines was often overlooked. Therefore, the prevention of corrosion of pipelines is an important part of pipeline engineering.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art, and provides a formula of an external coating of an underground cable pipeline, which plays a role in external corrosion resistance through an antioxidant and lime powder.

The invention is realized by the following technical scheme:

the formula of the underground cable duct external coating comprises the following components: 100-150 parts of base material, 1-5 parts of antioxidant, 10-15 parts of plasticizer and 20-30 parts of lime powder.

Further, the base material is a mixture of epoxy polyurethane resin and polyethylene according to the mass ratio of 2: 1.

Furthermore, the antioxidant is one or more of hindered phenols, phosphites and thioketones.

Further, the plasticizer is one or more of phthalic acid esters, fatty acid esters and alkyl sulfonate.

Further, the particle size of the lime powder is 300-400 meshes.

Compared with the prior art, the invention has the following advantages and beneficial effects:

the coating prepared by the formula of the external coating for the underground cable pipeline has the advantages of strong corrosion resistance, no pollution, good viscosity and quick drying.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.