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Low temperature resistant winter epoxy coal tar pitch coating

A technology of epoxy coal tar and asphalt coatings, which is applied in the direction of asphalt coatings, epoxy resin coatings, anti-corrosion coatings, etc., can solve the problems of affecting the tensile strength and deformation ability of coatings, the decline of deformation ability, and the reduction of toughness, and achieve excellent results. Film performance and anti-corrosion performance, long protection time, effect of improving anti-corrosion performance

Inactive Publication Date: 2013-10-23
TIANCHANG YINHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at low temperature, the strength and stiffness of the epoxy coal tar pitch coating increase significantly as the temperature decreases, but its deformation ability decreases significantly, that is, the brittleness increases and the toughness decreases. Low temperature affects the tensile strength of the coating. and shapeshifting abilities

Method used

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  • Low temperature resistant winter epoxy coal tar pitch coating
  • Low temperature resistant winter epoxy coal tar pitch coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of component A: 150 parts of epoxy resin, 1.5 parts of stearate, 2 parts of silicone oil, 35 parts of barium sulfate, 200 parts of talcum powder, 7 parts of bentonite, 80 parts of xylene, 39 parts of butanol, 1 part of alcohol One part was placed in a reaction kettle and heated to 85°C for 30 minutes. After mixing evenly, 250 parts of coal tar pitch was added and stirred for 30 minutes. The heat preservation treatment was performed for two hours to obtain Component A;

[0019] Preparation of component B: Mix 60 parts of polyamide and 70 parts of xylene to obtain component B;

[0020] The previously prepared component A and component B are stirred and mixed, and then filtered to obtain the epoxy coal tar pitch coating.

Embodiment 2

[0022] Preparation of component A: 170 parts of epoxy resin, 2 parts of polyethylene wax, 2.5 parts of polydimethylsiloxane, 40 parts of barium sulfate, 180 parts of talcum powder, 3 parts of bentonite, 85 parts of xylene, butanol 45 parts and 1140 parts of alcohol were placed in a reaction kettle and heated to 85°C, stirred for 30 minutes, after mixing evenly, 260 parts of coal tar pitch were added and stirred for 30 minutes, and heat-preserved for two hours to obtain component A;

[0023] Preparation of component B: Mix 70 parts of polyamide and 70 parts of xylene to obtain component B;

[0024] The previously prepared component A and component B are stirred and mixed, and then filtered to obtain the epoxy coal tar pitch coating.

Embodiment 3

[0026] Preparation of component A: 200 parts of epoxy resin, 3 parts of ethylene bisstearamide, silicone oil, polydimethylsiloxane, 3 parts of polyether polyester modified organosiloxane, 45 parts of barium sulfate , 220 parts of talcum powder, 7 parts of bentonite, 80 parts of xylene, 45 parts of butanol, and 5 parts of alcohol were placed in the reaction kettle and heated to 85 ° C for 30 minutes. After mixing evenly, 290 parts of coal tar pitch were added and stirred for 30 minutes. , heat preservation treatment for two hours to obtain component A;

[0027] Preparation of component B: Mix 70 parts of polyamide and 75 parts of xylene to obtain component B;

[0028] The previously prepared component A and component B are stirred and mixed, and then filtered to obtain the epoxy coal tar pitch coating.

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Abstract

The invention provides a low temperature resistant winter epoxy coal tar pitch coating comprising a component A and a component B according to a weight ratio of 5-7:1. The component A is prepared from an epoxy resin, coal tar pitch, a dispersing agent, flatting agents, barium sulfate, a talcum powder, bentonite, and solvents in parts by weight; the component B comprises polyamide and xylene according to a weight ratio of 1:1. With combination of the epoxy resin and the coal tar pitch, not only excellent film-forming and corrosion resistance properties of the epoxy resin are exerted, but also the problems of high temperature flow and low temperature cold brittleness of a pitch material are better solved, the coating layer is resistant to low temperature and can be used in winter, and the service life of the coating is prolonged.

Description

technical field [0001] The invention relates to the technical field of paint chemical industry, in particular to a low-temperature resistant winter epoxy coal tar pitch paint. Background technique [0002] Epoxy coal tar pitch coating is a kind of anti-corrosion coating that appeared in the 1960s. It combines the acid resistance, alkali resistance, water resistance of coal tar pitch and the adhesion, mechanical strength and solvent resistance of epoxy resin. It is an excellent Varieties of anti-corrosion coatings, widely used in water conservancy, petrochemical, shipbuilding and transportation industries. Epoxy coal tar pitch paint has excellent water resistance. After being immersed in water for 10 days, its water absorption rate is only 0.1%~0.2%; the paint film is impermeable and resistant to corrosion by some chemicals; Wetting; Inexpensive; High solids content for thick films. [0003] Epoxy coal tar pitch coating is a three-dimensional interpenetrating network thermo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D163/02C09D5/08C09D7/12
Inventor 汪鹏程孙巨福戴宇钧
Owner TIANCHANG YINHU PAINT
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