A kind of boron nitride anticorrosion coating material and preparation method thereof

Abstract

The invention relates to a boron nitride anti-corrosion coating material and a preparation method thereof, and belongs to the field of chemical engineering. The boron nitride anti-corrosion coating material is composed of the following components in parts by weight: 22-24 parts of water-based alkyd resin, 5-7 parts of nano boron nitride, 0.6-1.6 parts of a dispersant, and 70-85 parts of a solvent.The preparation method comprises the following steps: a, mixing the nano boron nitride and the solvent to prepare a boron nitride slurry; b, adding the dispersant into the prepared boron nitride slurry to prepare a boron nitride filler dispersion liquid; and c, mixing the prepared boron nitride filler dispersion liquid and the water-based alkyd resin to prepare the boron nitride anti-corrosion coating material. The preparation method of the anti-corrosion coating material provided by the invention is simple, and the prepared coating has a thickness range of 20-25[mu]m, can protect a substratematerial for 7-8 years under the high-temperature environment of 300 DEG C, and has excellent anti-corrosion effects.

Description

technical field [0001] The invention relates to an anti-corrosion coating material, in particular to a boron nitride anti-corrosion coating material and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] Metal corrosion is a spontaneous process that has always brought serious losses to human production and life, even catastrophic accidents. Corrosion is actually a great damage and waste of natural resources. Damage or fracture of metal may not only cause leakage of harmful substances, but also cause environmental pollution. In addition, if corrosion damage occurs in a certain key part and fails to receive timely attention and treatment, it may cause sudden catastrophic accidents, endanger the safety of daily production and life, and bring great losses to the national economy. and hazards. [0003] According to statistics, developed countries will consume about 10-20% of metals due to corrosion every year, and the econom...

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Problems solved by technology

For example, the Chinese invention patent (publication number: CN106010181A) discloses a metal surface treatment agent containing nano-boron nitride, which specifically includes water-based resin, dispersant, boron nitride and coating additives. The solid components in the water-based resin account for the coating 77%-93.5% of the total solid component mass fraction, dispersant accounts for 5%-20% of the total solid component mass fraction of the coating, boron nitride accounts for 0.5%-2% of the total solid component mass fraction of the coating, coating additives Accounting for 0.5-1% of the total solid content of the coating, the salt spray test proves that the composite coating has ultra-high corrosion resistance, but there are defects such as uneven and uneven film formation during high temperature use

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