A modified sepiolite-coated titanium nano heavy-duty anti-corrosion coating and its preparation method

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: 2020-11-06
XIANGTAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 find a new alternative material or effectively modify titanium nanomaterials to obtain new materials to improve the current situation. the meaning of

Method used

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  • A modified sepiolite-coated titanium nano heavy-duty anti-corrosion coating and its preparation method
  • A modified sepiolite-coated titanium nano heavy-duty anti-corrosion coating and its preparation method
  • A modified sepiolite-coated titanium nano heavy-duty anti-corrosion coating and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The specific operation 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 screened sepiolite is soaked in deionized water, fully magnetically stirred at 1200r / min for 24h, and then left to settle 48h, then dried at 95°C for 24h, and fully ground for 40min to obtain sepiolite powder treated with deionized water; Add the coupling agent γ-propyltrimethoxysilane into 2mol / L dilute hydrochloric acid solution, fully stir in the oil bath at 95°C at 1400r / min for 40min, repeatedly suction filter and dehydrate, and finally use 115 ℃, vacuum-dried, and fully ground for 30 minutes to obtain silane coupling agent-modified sepiolite;

[0039] (2). The modified sepiolite with a quality of 4g is mixed with titanium powder with a quality of 64g, and after fully grinding, add epoxy resin E44, dispersion medium dimethylpyrrolidone, silane coupling agent AL-303, solvent, Their masses are 36g, 7g, 4g, and 35g ...

Embodiment 2

[0046] The specific operation 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 screened sepiolite is soaked in deionized water, fully magnetically stirred at 1000r / min for 36h, and then left to settle for 36h , then dried at 90°C for 36 hours, fully ground for 30 minutes to obtain sepiolite powder treated with ionized water; The joint agent γ-propyltrimethoxysilane is added to 2mol / L dilute hydrochloric acid solution, fully stirred in an oil bath at 90°C at 1500r / min for 50min, repeatedly suction-filtered and dehydrated, and finally heated at 105°C Vacuum drying, fully grinding for 40min to obtain the sepiolite modified by silane coupling agent;

[0048] (2) The modified sepiolite with a quality of 8g is mixed with titanium powder with a quality of 65g, and after fully grinding, add epoxy resin E44, dispersion medium dimethylpyrrolidone, silane coupling agent AL-303, solvent, they The mass is 42g,...

Embodiment 3

[0056] The specific operation steps are as follows:

[0057] (1). First, screen 15g of sepiolite with a purity of 70% with a 200-mesh screen, then soak the screened sepiolite in deionized water, and stir magnetically at 1100r / min for 22 hours, then let it settle 40h, then dried at 100°C for 24h, and fully ground for 30min to obtain sepiolite powder treated with deionized water; Add the coupling agent γ-propyltrimethoxysilane into 2mol / L dilute hydrochloric acid solution, fully stir in the oil bath at 1300r / min at 95°C for 30min, repeat suction filtration and dehydration, and finally use 115 °C, vacuum-dried and fully ground for 50 minutes to obtain silane coupling agent-modified sepiolite.

[0058] (2). The modified sepiolite with a quality of 20g is mixed with titanium powder with a quality of 80g, and after fully grinding, add epoxy resin E44, dispersion medium dimethylpyrrolidone, silane coupling agent AL-303, solvent, Their masses are 32g, 6g, 4g, and 15g in turn, and th...

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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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Patent Type & Authority Patents(China)
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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