Self-healing leakage-proof inorganic-organic nano composite coating for natural gas pipelines

Abstract

The invention discloses a self-healing leakage-proof inorganic-organic nano composite coating for natural gas pipelines. The coating herein comprises, by mass, 85% of polyurethane paint; 2% of nano titanium dioxide; and 2% of nano ferric oxide. The coating herein also comprises the additives of, by mass, 1% of hexadecyltrimethylammonium bromide; 1% of sodium dodecyl benzene sulfonate; and 2% of non-ionic BS-12. The particle diameter of the nano ferric oxide is 100 nm. Suitable organic paintings and inorganic nano-additives are selected by adding chiral magnetic elements through an electrochemical method, appropriate surfactants are added, and therefore, the surface adhesion of paintings to substrates is enhanced, and the nano-additives are given hydrophobic and oleophobic properties; the nano-additives are evenly dispersed in paintings, so that the nano-composite coating prepared has good self-healing property.

Description

technical field [0001] The invention relates to a composite coating, in particular to a self-repairing natural gas pipeline anti-leakage organic-inorganic nanometer composite coating formula. Background technique [0002] Coal, oil and natural gas have become the world's three core energy sources, and play an important role in the production of countries around the world and people's lives. As the only clean energy among the three energy sources of coal, oil and natural gas, the application volume of natural gas is increasing year by year. However, with the wide-scale application of natural gas, various safety accidents have occurred one after another. [0003] Frequent natural gas pipeline leakage accidents have brought huge economic losses to the society and threatened the personal safety of the people. Due to the particularity of natural gas pipeline leakage, secondary disasters caused by combustion are often caused. make the loss bigger. If the sulfur dioxide, carbon ...

AI Technical Summary

Problems solved by technology

[0010] 2. The preparation method is more complicated and wastes time and manpower and material resources

[0011] 3. The requirements for polar solvent medium are high, and the dispersion is not easy to prepare

[0016] 1. This peelable coating is temporary and cannot provide long-term protection

[0017] 2. Its weather resistance is only for high temperature conditions, and cannot solve the problem of easy curing and condensation at low temperatures

[0018] 3. According to the mass fraction, it is divided into two components, A and B, and there are many materials in the two components, which may easily cause problems such as inconvenient use

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