Modified sepiolite coated titanium nano heavy anticorrosive coating and preparation method thereof

A technology of sepiolite and titanium nanometers, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of expensive titanium and poor dispersion of titanium nanometers, and reduce the risk of corrosion. Increased repulsion and excellent performance

Active Publication Date: 2019-01-22
XIANGTAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, problems such as expensive titanium and poor dispersion of titanium nanometers in coatings are more prominent. It is very important to fin

Method used

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  • Modified sepiolite coated titanium nano heavy anticorrosive coating and preparation method thereof
  • Modified sepiolite coated titanium nano heavy anticorrosive coating and preparation method thereof
  • Modified sepiolite coated titanium nano heavy anticorrosive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1

[0037] The specific steps are as follows:

[0038] (1). First, 20g of sepiolite with a purity of 70% is screened with a 200 mesh screen, and then the selected sepiolite is soaked in deionized water, fully magnetically stirred at 1200r / min for 24h, and then left to settle. 48h, then dry at 95℃ for 24h and fully grind for 40min to obtain sepiolite powder treated with ionized water; then combine sepiolite treated with deionized water and 4% silane of the mass of sepiolite The coupling agent γ-propyltrimethoxysilane was added to the 2mol / L dilute hydrochloric acid solution, and it was fully stirred in an oil bath at 1400r / min at 95°C for 40min, filtered repeatedly, dehydrated, and finally heated to 115 Dry under vacuum at ℃ and fully grind for 30 minutes to obtain sepiolite modified with silane coupling agent;

[0039] (2). Mix the modified sepiolite with a mass of 4g and titanium powder with a mass of 64g, add epoxy resin E44, dispersion medium dimethylpyrrolidone, ...

Example Embodiment

[0045] Example 2

[0046] The specific steps are as follows:

[0047] (1) First, 17g of sepiolite with a purity of 70% is screened with a 200-mesh screen, and then the selected sepiolite is soaked in deionized water, stirred fully magnetically at 1000r / min for 36h, and then allowed to settle for 36h , Then dry at 90℃ for 36 hours and fully grind for 30 minutes to obtain sepiolite powder treated with ionized water; then combine the sepiolite treated with deionized water and the silane couple with a mass of 4% of the sepiolite mass The coupling agent γ-propyltrimethoxysilane was added to the 2mol / L dilute hydrochloric acid solution, and it was fully stirred in an oil bath at 1500r / min for 50min at 90℃, filtered repeatedly, dehydrated, and finally heated at 105℃ Dry in vacuum and fully grind for 40 minutes to obtain sepiolite modified with silane coupling agent;

[0048] (2) Mix 8g of modified sepiolite with 65g of titanium powder, add epoxy resin E44, dispersion medium dimethylpyrrol...

Example Embodiment

[0055] Example 3

[0056] The specific steps are as follows:

[0057] (1). First, 15g of sepiolite with a purity of 70% is screened with a 200 mesh screen, and then the selected sepiolite is soaked in deionized water, fully magnetically stirred at 1100r / min for 22h, and then settled 40h, then dry at 100°C for 24h and fully grind for 30min to obtain sepiolite powder treated with ionized water; then combine sepiolite treated with deionized water and 4% silane of the mass of sepiolite Coupling agent γ-propyltrimethoxysilane was added to the 2mol / L dilute hydrochloric acid solution, fully stirred in an oil bath at 1300r / min at 95℃ for 30min, filtered repeatedly, dehydrated, and finally heated to 115 It was dried in vacuum at ℃ and fully ground for 50 minutes to obtain sepiolite modified with silane coupling agent.

[0058] (2). Mix 20g of modified sepiolite with 80g of titanium powder, add epoxy resin E44, dispersion medium dimethylpyrrolidone, silane coupling agent AL-303, solvent aft...

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Abstract

The invention discloses a modified sepiolite coated titanium nano heavy anticorrosive coating and a preparation method thereof. The heavy anticorrosive coating comprises epoxy resin, epoxy-based siloxane, modified sepiolite titanium nano-slurry, a solvent and an auxiliary agent; first sepiolite is subjected to modification treatment; modified sepiolite and titanium powder are mixed to obtain a mixed powder material, the epoxy resin, the dispersing medium, the epoxy-based siloxane and the solvent are added into the mixed powder material for full ball-milling to obtain the nano-scale sepiolite titanium nano-slurry; and the nano-scale sepiolite titanium nano-slurry is mixed the epoxy resin, a silane coupling agent, the solvent and the auxiliary agent for stirring and sufficiently vibrating toobtain the modified sepiolite coated titanium nano heavy anticorrosive coating. A coated layer prepared by the coating disclosed by the invention is excellent in adhesive force, good in wear resistance, high in impact strength, good in flexibility and high in corrosion resistance, and the raw material sepiolite is cheap and easy to obtain, the amount of the titanium powder is effectively reducedby adding of the sepiolite, the coating cost is greatly reduced, and the development of the heavy anti-corrosion coating industry is facilitated.

Description

technical field [0001] The invention relates to a heavy-duty anti-corrosion coating, in particular to a modified sepiolite-coated titanium nano-heavy anti-corrosion coating and a preparation method thereof. Background technique [0002] With the continuous advancement of industrial technology, the corrosion problem caused by the use of metals has become more and more serious. China has caused huge losses due to corrosion problems every year, and the world's annual economic losses due to corrosion are about 1 trillion US dollars, which is about 1000 billion U.S. dollars. Six times the sum of natural disasters such as floods and typhoons. How to reduce cost and realize high-efficiency and long-term anticorrosion has become one of the focal issues of concern all over the world. In order to reduce metal corrosion, there are mainly the following anti-corrosion technologies: alloying treatment, electrochemical protection, medium treatment, addition of corrosion inhibitors, and co...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/62
CPCC08K2003/0881C09D5/10C09D7/62C09D163/00C08K9/06C08K7/26C08K3/08
Inventor 欧阳晓平熊海龙谢鹤楼彭晓淳马金华齐福刚赵镍易俊松万鹏颖袁恒
Owner XIANGTAN UNIV
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