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Waterborne heavy-duty coating containing silane coupling agent modified graphene, preparation method and application

A silane coupling agent, heavy-duty anti-corrosion technology, used in anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of water-based industrial resins that are not mentioned, and achieve the effect of excellent anti-corrosion performance and excellent performance

Active Publication Date: 2019-10-18
DALIAN LICHUANG NEW MATERIAL SCI & TECHDEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] CN 107523201 A discloses a method utilizing graphene to prepare light-resistant water-based coatings, wherein it discloses utilizing graphene to improve the light resistance and abrasion resistance of water-based industrial coatings, and improves the film-forming elongation at break of product water-based coatings, And it is disclosed that the graphene is a grafted graphene solution prepared by using graphene oxide and silane coupling agent, etc.; but there is no mention of water-based industrial resin, let alone the water-based coating prepared by grafted graphene and water-based industrial resin The advantages

Method used

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  • Waterborne heavy-duty coating containing silane coupling agent modified graphene, preparation method and application
  • Waterborne heavy-duty coating containing silane coupling agent modified graphene, preparation method and application
  • Waterborne heavy-duty coating containing silane coupling agent modified graphene, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Under nitrogen protection, put 565g of methanol solvent into a 2L four-neck flask equipped with a stirrer, thermometer, distiller, and condenser, and slowly add 5g of graphene oxide under stirring, and slowly stir for 30 minutes, and heat up to 55 °C (referred to as the first temperature in Table 1). Then, slowly drop 250g silane coupling agent KH560 thereinto, be warmed up to 90 ℃ (referred to as second temperature in Table 1) after dropwise addition is completed, insulation 24 hours (referred to as first heat preservation time in Table 1), obtain mixture a. Then cool down to 65°C (referred to as the third temperature in Table 1), slowly add 180g ferrous sulfate reducing agent under stirring, and keep warm for 2.5 hours (referred to as the second holding time in Table 1), to obtain product b. Then, the vacuum pump was turned on, the temperature of the system was raised to 100° C. (referred to as the fourth temperature in Table 1), and the solvent in the product b was ...

Embodiment 2-5

[0118] The process of Example 1 was repeated, except that the raw material consumption and experimental conditions listed in Table 1 were used.

Embodiment 6-7

[0119] Embodiment 6-7 (as comparative example)

[0120] The process of Example 4 was repeated, except that the raw material consumption and experimental conditions listed in Table 1 were used.

[0121] Table 1: Experimental data and results of Examples 1-7

[0122]

[0123]

[0124] Note: In the formula 0.01×R×ln(T+273.15)×ln(t), R represents the ratio of added silane coupling agent to graphene oxide; T represents the second temperature in °C; and, t Represents the first heat preservation time, the unit is hour.

[0125] Tested the content of residual silane coupling agent in the prepared silane coupling agent modified graphene with capillary chromatography, thereby deduced the optimal ratio of silane coupling agent and graphene in the prepared modified graphene, experiment The proportions are shown in Table 2 below:

[0126] Table 2

[0127]

[0128] As can be seen from the test results, the weight ratio of silane coupling link and graphene in the modified graphe...

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Abstract

The invention relates to a waterborne heavy-duty coating. The waterborne heavy-duty coating is prepared from the components: (A) waterborne industrial resin and (B) silane coupling agent modified graphene, wherein the amount of the component (B) is 0.1-1.0% by weight based on the amount of the component (A), the total amount of the component (A) and the component (B) is 100% by weight, and the weight ratio of a silane coupling agent to graphene is (2.0 to 7.0) to 1. The invention further relates to a method for preparing the waterborne heavy-duty coating and application of the waterborne heavy-duty coating to the infrastructure, oil and gas and electric power industries, as well as in the industrial tank, shipping and chemical engineering industries.

Description

technical field [0001] The invention belongs to the field of coatings, and more specifically relates to an industrial anticorrosion coating, especially a water-based heavy-duty anticorrosion coating, its preparation method and application. Background technique [0002] Industrial anti-corrosion coatings have been widely used in modern industry, transportation, energy, marine engineering and other fields. Over the past ten years, my country has successfully developed many industrial anti-corrosion coating products. At present, the market scale of industrial anti-corrosion coatings in my country ranks second only to architectural coatings. According to statistics, the total output of my country's industrial anti-corrosion coatings has reached about 6 million tons in 2017, and this figure will continue to grow in the future. At present, although China's industrial anti-corrosion coatings market has a wide range of applications, there are limitations such as high degree of pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/62C09D5/08
CPCC09D167/08C09D7/62C09D5/08C08K9/06C08K3/042
Inventor 梁文涛吴绍臣韩琳
Owner DALIAN LICHUANG NEW MATERIAL SCI & TECHDEV
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