阅读说明：本技术 一种碳纳米管防腐涂料 (Carbon nano tube anticorrosive paint ) 是由 陈维旺 陆洪彬 徐海涛 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种含碳纳米管金属用防腐涂料,其由环氧树脂、有机膨润土、邻苯二甲酸二丁酯、钛白粉、中铬黄、滑石粉、硫酸钡、氧化锌、碳纳米管、感温粉及配套助剂组成。本发明利用碳纳米管特殊的高强度一维线性结构,在涂层内部形成高强度交织的网状结构,使得涂层更加致密；同时利用碳纳米管的纳米效应,提高涂层与材料之间的结合力,减少涂层内部的孔隙,阻止溶液进入到涂层内部,从而有效地提高涂料的耐候、耐腐蚀性能。本发明材料环保,生产工艺环境友好,所得的漆膜耐水、防腐性能优异,且粘接强度高,耐碱、耐腐蚀性能优异,极大提高了涂料的试用范围与性价比。(The invention discloses an anticorrosive paint for a metal containing carbon nano tubes, which consists of epoxy resin, organic bentonite, dibutyl phthalate, titanium dioxide, medium chrome yellow, talcum powder, barium sulfate, zinc oxide, the carbon nano tubes, temperature sensing powder and auxiliary agents. According to the invention, a special high-strength one-dimensional linear structure of the carbon nano tube is utilized to form a high-strength interlaced reticular structure in the coating, so that the coating is more compact; meanwhile, the nano effect of the carbon nano tube is utilized to improve the binding force between the coating and the material, reduce the pores in the coating and prevent the solution from entering the coating, thereby effectively improving the weather resistance and corrosion resistance of the coating. The material is environment-friendly, the production process is environment-friendly, the obtained paint film has excellent water resistance and corrosion resistance, the bonding strength is high, the alkali resistance and the corrosion resistance are excellent, and the trial range and the cost performance of the paint are greatly improved.)

1. The carbon nanotube anticorrosive paint is characterized in that: the material comprises the following components in parts by weight: 400-600 parts of epoxy resin, 5-15 parts of organic bentonite, 20-50 parts of dibutyl phthalate, 5-15 parts of titanium dioxide, 50-100 parts of medium chrome yellow, 50-100 parts of talcum powder, 30-45 parts of barium sulfate, 70-100 parts of zinc oxide, 2-10 parts of carbon nano tube, 10-20 parts of dispersing agent, 100-130 parts of diluent, 1-10 parts of flatting agent and 60-120 parts of temperature sensing powder;

the preparation method comprises the following steps:

s1, mixing the epoxy resin, the dibutyl phthalate and the flatting agent, adding the mixture into a stirring kettle according to the formula proportion, and stirring the mixture at the speed of 300-400r/min for 10-20 minutes to prepare a precursor;

s2, adding the carbon nano tube, the dispersing agent and the diluent into a reaction kettle, continuously stirring, vacuumizing and adding into the precursor under the stirring condition;

s3, sequentially adding titanium dioxide, organic bentonite, talcum powder and barium sulfate, increasing the rotating speed to 500-1000r/min, stirring for 20-30 minutes, and stopping vacuumizing;

s4, grinding the dispersed mixed material in a sand mill, and filtering with 400-mesh filter cloth to obtain the carbon nano tube anticorrosive paint.

2. The carbon nanotube anticorrosive paint according to claim 1, characterized in that: the epoxy resin is light yellow to yellow liquid in appearance, the epoxy value is 0.23-0.26, and the solid content is 59-61%.

3. The carbon nanotube anticorrosive paint according to claim 1, characterized in that: the mesh number of the talcum powder and the barium sulfate is 100-300 meshes.

4. The carbon nanotube anticorrosive paint according to claim 1, characterized in that: the carbon nanotube is a multi-wall structure with the length of micron order and the diameter of about 2-25 nm.

Technical Field

The invention relates to the technical field of coatings, in particular to a carbon nanotube anticorrosive coating for metal.

Background

Metal rust is one of the most common and most damaging types of corrosion. Many metal equipment in life are generally installed in indoor or outdoor environment, and are installed outdoors and affected by severe weather conditions for a long time, so that the metal equipment can be corroded and corroded, and if the metal equipment cannot be maintained or replaced in time, equipment failure can be caused, and the safe and normal operation of the metal equipment is affected. At present, various methods for inhibiting metal corrosion exist, and the corrosion prevention of the coating is an effective and common method, but the traditional coating has the defects of insufficient self strength and poor temperature resistance, and is easy to crack under the conditions of high temperature, high humidity and expansion and contraction of a substrate, so that the corrosion prevention effect of the coating is reduced and even loses efficacy.

According to the invention, the nano-scale multi-walled carbon nano-tube is added into the coating to serve as a nano-fiber, the compactness of the film-forming coating is increased by adding the carbon nano-tube, a channel for water molecule permeation is filled, the time for water to permeate from the surface of the coating to the surface of a matrix is obviously prolonged, the failure of the coating is delayed, and the service life of the coating is prolonged. The carbon nano tube is applied to the coating, so that the weather resistance, corrosion resistance, flame retardance and high temperature resistance of the coating are effectively guaranteed, and the service life is longer.

Disclosure of Invention

The invention aims to provide a carbon nano tube anticorrosive paint, and the prepared carbon nano tube composite anticorrosive paint is superior to the traditional anticorrosive paint in the aspects of high temperature and crack resistance.

The technical scheme of the invention is as follows.

The carbon nanotube anticorrosive paint is characterized in that: the material comprises the following components in parts by weight: 400-600 parts of epoxy resin, 5-15 parts of organic bentonite, 20-50 parts of dibutyl phthalate, 5-15 parts of titanium dioxide, 50-100 parts of medium chrome yellow, 50-100 parts of talcum powder, 30-45 parts of barium sulfate, 70-100 parts of zinc oxide, 2-10 parts of carbon nano tube, 10-20 parts of dispersing agent, 100-130 parts of diluent, 1-10 parts of flatting agent and 60-120 parts of temperature sensing powder.

The preparation method comprises the following steps:

s1, mixing the epoxy resin, the dibutyl phthalate and the flatting agent, adding the mixture into a stirring kettle according to the formula proportion, and stirring the mixture at the speed of 300-400r/min for 10-20 minutes to prepare a precursor;

s2, adding the carbon nano tube, the dispersing agent and the diluent into a reaction kettle, continuously stirring, vacuumizing and adding into the precursor under the stirring condition;

s3, sequentially adding titanium dioxide, organic bentonite, talcum powder and barium sulfate, increasing the rotating speed to 500-1000r/min, stirring for 20-30 minutes, and stopping vacuumizing;

s4, grinding the dispersed mixed material in a sand mill, and filtering with 400-mesh filter cloth to obtain the carbon nano tube anticorrosive paint.

The epoxy resin is light yellow to yellow liquid in appearance, the epoxy value is 0.23-0.26, and the solid content is 59-61%.

The mesh number of the talcum powder and the barium sulfate is 100-300 meshes.

Further, the carbon nanotube has a multi-wall structure with a length of micron order and a diameter of about 2-25 nm.

Compared with the prior art, the invention has the advantages that the material is environment-friendly, the production process is environment-friendly, the obtained paint film has excellent water resistance and corrosion resistance, the bonding strength is high, the alkali resistance and the corrosion resistance are excellent, and the trial range and the cost performance of the paint are greatly improved.

Detailed Description

Example 1

The material comprises the following components in parts by weight: 500 parts of epoxy resin, 9 parts of organic bentonite, 33 parts of dibutyl phthalate, 8.5 parts of titanium dioxide, 60 parts of medium chrome yellow, 70 parts of talcum powder, 38 parts of barium sulfate, 85 parts of zinc oxide, 4 parts of carbon nano tubes, 10 parts of dispersing agent, 115 parts of diluent, 3 parts of flatting agent and 77 parts of temperature sensing powder;

the preparation steps are as follows:

s1, mixing the epoxy resin, the dibutyl phthalate and the flatting agent, adding the mixture into a stirring kettle according to the formula proportion, and stirring the mixture for 10 minutes at the speed of 300-400r/min to prepare a precursor;

s2, adding the carbon nano tube, the dispersing agent and the diluent into a reaction kettle, continuously stirring, vacuumizing and adding into the precursor under the stirring condition;

s3, sequentially adding titanium dioxide, organic bentonite, talcum powder and barium sulfate, increasing the rotating speed to 500r/min, stirring for 20 minutes, and stopping vacuumizing;

s4, grinding the dispersed mixed material in a sand mill, and filtering with 400-mesh filter cloth to obtain the carbon nano tube anticorrosive paint.

Example 2

The material comprises the following components in parts by weight: epoxy resin 480, organic bentonite 9, dibutyl phthalate 32, titanium dioxide 10, medium chrome yellow 60, talcum powder 70, barium sulfate 38, zinc oxide 100, carbon nano tube 6, dispersing agent 15, diluent 128, leveling agent 3 and temperature sensing powder 85;

the preparation steps are as follows:

s1, mixing the epoxy resin, the dibutyl phthalate and the flatting agent, adding the mixture into a stirring kettle according to the formula proportion, and stirring the mixture for 15 minutes at the speed of 300-400r/min to prepare a precursor;

s2, adding the carbon nano tube, the dispersing agent and the diluent into a reaction kettle, continuously stirring, vacuumizing and adding into the precursor under the stirring condition;

s3, sequentially adding titanium dioxide, organic bentonite, talcum powder and barium sulfate, increasing the rotating speed to 700r/min, stirring for 25 minutes, and stopping vacuumizing;

s4, grinding the dispersed mixed material in a sand mill, and filtering with 400-mesh filter cloth to obtain the carbon nano tube anticorrosive paint.

Example 3

The material comprises the following components in parts by weight: epoxy resin 520, organic bentonite 9, dibutyl phthalate 35, titanium dioxide 8.5, medium chrome yellow 60, talcum powder 70, barium sulfate 38, zinc oxide 85, carbon nano tube 8, dispersing agent 16, diluent 107, leveling agent 4 and temperature sensing powder 85;

the preparation steps are as follows:

s1, mixing the epoxy resin, the dibutyl phthalate and the flatting agent, adding the mixture into a stirring kettle according to the formula proportion, and stirring the mixture for 20 minutes at the speed of 300-400r/min to prepare a precursor;

s2, adding the carbon nano tube, the dispersing agent and the diluent into a reaction kettle, continuously stirring, vacuumizing and adding into the precursor under the stirring condition;

s3, sequentially adding titanium dioxide, organic bentonite, talcum powder and barium sulfate, increasing the rotating speed to 1000r/min, stirring for 30 minutes, and stopping vacuumizing;

s4, grinding the dispersed mixed material in a sand mill, and filtering with 400-mesh filter cloth to obtain the carbon nano tube anticorrosive paint.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.