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High-seawater-resistant epoxy coating suitable for ocean platforms and ships as well as preparation method and application method of high-seawater-resistant epoxy coating

A technology for offshore platforms and epoxy coatings, applied in the direction of epoxy resin coatings, anti-fouling/underwater coatings, anti-corrosion coatings, etc. Poor peeling performance, high maintenance costs and other problems, to achieve the effect of improving anti-corrosion quality, excellent seawater resistance, and low requirements for production equipment and sites

Inactive Publication Date: 2014-12-10
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional epoxy coatings have poor adhesion, seawater resistance, salt spray resistance, and cathodic disbonding resistance. Therefore, offshore platforms and ships need docking repairs every one to two years, which not only costs a lot of maintenance, but also affects offshore platforms and ships. normal work

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059]The invention discloses a preparation method of a high-seawater-resistant epoxy coating suitable for offshore platforms and ships. Add 0.7 part of bisphenol A liquid epoxy resin, 0.2 part of C9 petroleum resin, 0.02 part of epoxy alkyl stearate, 0.02 part of polyurethane modified macromolecule compound, 0.01 part by weight in the stainless steel bucket. 1 part of modified hydrogenated castor oil, 0.005 part of polyether siloxane, 0.02 part of non-ionic surfactant, 0.01-0.02 part of dimethyl polysiloxane and hydrophobic silica mixture, and start the high-speed disperser , control the speed at 1000r / min, stir for 15min, increase the speed to 1400r / min, add 0.05 parts of fumed silica, 0.4 parts of micaceous iron oxide, 0.4 parts of quartz powder, 0.5 parts of silicon micropowder, 0.05 parts parts of titanium dioxide, 0.01 parts of carbon black, and 0.03 parts of aluminum tripolyphosphate. Keep the rotation speed of 1400r / min and continue to disperse for 15 minutes to make ...

Embodiment 2

[0061] The invention discloses a preparation method of a high-seawater-resistant epoxy coating suitable for offshore platforms and ships. Add 0.8 part of bisphenol A liquid epoxy resin, 0.1 part of C9 petroleum resin, 0.02 part of epoxy alkyl stearate, 0.015 part of polyurethane modified macromolecule compound, 0.015 part in stainless steel bucket by weight Part of modified hydrogenated castor oil, 0.007 part of polyether siloxane, 0.02 part of nonionic surfactant, 0.01 part of dimethylpolysiloxane and hydrophobic silica mixture, open the high-speed disperser, and Control the rotation speed at 1200r / min, stir for 10min, increase the rotation speed to 1300r / min, add 0.04 parts of fumed silica, 0.3 parts of micaceous iron oxide, 0.3 parts of quartz powder, 0.4 parts of silicon micropowder, 0.04 parts of Titanium dioxide, 0.01 parts of carbon black, 0.02 parts of aluminum tripolyphosphate. Keep the rotation speed of 1300r / min and continue to disperse for 20 minutes to make A liq...

Embodiment 3

[0063] The invention discloses a preparation method of a high-seawater-resistant epoxy coating suitable for offshore platforms and ships. Add 0.9 part of bisphenol A liquid epoxy resin, 0.1 part of C9 petroleum resin, 0.01 part of epoxy alkyl stearate, 0.03 part of polyurethane modified macromolecule compound, 0.01 part by weight in stainless steel bucket Part of modified hydrogenated castor oil, 0.003 part of polyether siloxane, 0.01 part of nonionic surfactant, 0.02 part of dimethylpolysiloxane and hydrophobic silica mixture, open the high-speed disperser, and Control the rotation speed at 1100r / min, stir for 15min, increase the rotation speed to 1300r / min, add 0.03 parts of fumed silica, 0.2 parts of micaceous iron oxide, 0.2 parts of quartz powder, 0.3 parts of silicon micropowder, 0.03 parts of Titanium dioxide, 0.01 parts of carbon black, 0.02 parts of aluminum tripolyphosphate. Keep the rotation speed of 1300r / min and continue to disperse for 15 minutes to make liquid ...

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PUM

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Abstract

The invention relates to a high-seawater-resistant epoxy coating suitable for ocean platforms and ships as well as a preparation method of the high-seawater-resistant epoxy coating. A liquid A is composed of bisphenol A liquid epoxy resin, C9 petroleum resin, an epoxystearic acid alkyl ester, a polyurethane modified high-molecular compound, a modified hydrogenated castor oil, a silicone polyether, a nonionic surfactant, a mixture of dimethyl polysiloxane and hydrophobic silica, aerosol, micaceous iron oxide gray, quartz powder, silica micropowder, titanium dioxide powder, carbon black and aluminium triphosphate. A liquid B is a phenolic aldehyde amine curing agent with an amine value of 305 to 335. When the epoxy coating is used, the liquid A and the liquid B are mixed to form a coating layer which has a good adhesive force with a steel base material and is excellent in seawater resistance, salt spray resistance and cathodic disbonding resistance, so that the anticorrosion quality of ocean steel structures is effectively improved. Thus, the dock repairing of the ocean platforms, the ships and the like due to the failure of the coating layers is reduced.

Description

technical field [0001] The invention relates to a high seawater-resistant epoxy paint suitable for offshore platforms and ships, a preparation method and a use method. technical background [0002] Marine steel structures such as offshore platforms and ships have been in the corrosive environment of marine salt spray and seawater for a long time. Traditional epoxy coatings have poor adhesion, seawater resistance, salt spray resistance, and cathodic disbonding resistance. Therefore, offshore platforms and ships need docking repairs every one to two years, which not only costs a lot of maintenance, but also affects offshore platforms and ships. normal work. Contents of the invention [0003] The purpose of the present invention is to avoid the deficiencies in the above-mentioned prior art and provide a kind of high adhesion, seawater resistance, salt spray resistance, cathodic stripping resistance, easy construction and high seawater resistance epoxy coatings and coatings s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/16C09D7/12
Inventor 杨耀辉韩文礼张彦军张贻刚李玲杰
Owner BC P INC CHINA NAT PETROLEUM CORP
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