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Wear-resistant anticorrosive paint for polar ships and preparation method thereof

A technology for anti-corrosion coatings and ships, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., to achieve the effects of improving adhesion and impact resistance, good low-temperature toughness and wear resistance, excellent mechanical properties and high toughness

Inactive Publication Date: 2020-03-24
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wear-resistant coatings in other domestic related patents and papers have not carried out relevant impact and wear resistance tests under low temperature conditions, and domestic related coating products have not been applied on low-temperature ships

Method used

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  • Wear-resistant anticorrosive paint for polar ships and preparation method thereof
  • Wear-resistant anticorrosive paint for polar ships and preparation method thereof
  • Wear-resistant anticorrosive paint for polar ships and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0056] The preparation method of modified nano filler is:

[0057] 1) Add 0.5g of nano-filler powder to 100ml of deionized water, first magnetically stir for 30 minutes, and then disperse by ultrasonic waves for 20 minutes to obtain a 5g / L nano-filler dispersion;

[0058] 2) Adjust the pH of the dispersion to 4, add a coupling agent with a mass of 1% to 4% of the nanofiller powder to the dispersion and react at 80°C for 2 to 3 hours;

[0059] 3), centrifuge the mixed solution after the reaction in step 2) (separate at a speed of 10000r / min for 20min), take the separated precipitate and add it to deionized water, and then perform ultrasonic dispersion for 10min;

[0060] 4), repeat step 3) until the excess coupling agent is completely removed, dry the dispersion after removing the coupling agent at 100° C. for 24 hours, and then perform vacuum cooling for 1 hour to obtain the modified nano filler.

[0061] Preferably, the wear-resistant filler is compounded by hard filler and ...

Embodiment 1

[0076] A wear-resistant and anti-corrosion coating for polar ships, its components and corresponding mass fractions are shown in Table 1.

[0077] The wear-resisting anticorrosion coating of table 1 embodiment 1 is calculated by mass fraction

[0078]

[0079] The preparation method of this coating comprises the steps:

[0080] (1) Weigh each component according to the mass percentage, place the weighed pigments and fillers in an oven, dry at a temperature of 110±5°C for 2 to 12 hours, and then cool naturally to room temperature to obtain the dried After the pigment;

[0081] (2), the epoxy resin that step (1) takes by weighing, polyurethane modified epoxy resin, epoxy thinner, dispersant, defoamer, leveling agent and the solvent that account for 70% of total amount are mixed, stir The equipment stirs at a speed of 500-800r / min for 5-45min;

[0082] (3), adding the modified nano-filler to the mixture obtained in step (2), stirring at a speed of 1200-1500r / min for 20-30mi...

Embodiment 2

[0086] The components and corresponding mass fractions of the wear-resistant and anti-corrosion coating in Example 2 are shown in Table 2.

[0087] The wear-resisting anticorrosion coating of table 2 embodiment 2 is calculated by mass fraction

[0088]

[0089] The preparation method of embodiment 2 is identical with embodiment 1.

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Abstract

The invention discloses a wear-resistant anticorrosive paint for polar ships and a preparation method thereof, the wear-resistant anticorrosive paint comprises a component A and a component B which are mixed according to a mass ratio of (4-5.5): 1, the component A comprises the following components by mass percentage: 30-40 wt% of bisphenol A epoxy resin; 10-20 wt% of polyurethane modified epoxy resin, 5-10 wt% of an epoxy diluent, 2-5 wt% of a modified nano-filler, 13-20 wt% of a wear-resistant filler, 8-15 wt% of a pigment filler, 8-10 wt% of a solvent, and 2-3 wt% of an auxiliary agent. Andthe component B is a modified epoxy curing agent. The wear-resistant anticorrosive paint has the advantages of favorable film-forming property, high glossiness, favorable low-temperature toughness, favorable wear resistance and excellent corrosion resistance, and can satisfy the impact and friction requirements of the polar ship hull protective paint on the ice layer under low-temperature conditions.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a wear-resistant anti-corrosion coating for polar ships and a preparation method thereof. Background technique [0002] With the continuous deepening of polar oil and gas resources, the demand for polar ships has a broad growth space. Coating low-temperature resistant coatings on the surface of polar ships is the most economical and common method to prevent structural corrosion. However, due to low temperature conditions, the brittleness of the organic coating will increase. Considering the impact and friction between the hull and the ice layer and ice floes, the coating should have good ice impact resistance and friction resistance under low temperature conditions, that is, excellent high toughness and Hardness Compatibility. At the same time, the smooth coating surface has a very low coefficient of friction, which can further reduce the friction of the ice laye...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D127/18C09D5/08C09D7/62C09D7/61C09D7/65
CPCC08K2003/2227C08K2003/2241C08K2003/3045C08K2003/328C08K2201/011C08L2205/025C08L2205/03C08L2205/04C09D5/08C09D163/00C09D7/61C09D7/62C09D7/65C08L63/00C08L27/18C08K13/06C08K3/22C08K3/30C08K3/32
Inventor 亓海霞张心悦张黎黎陈凯锋
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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