For epoxy anti-static flooring, first consider the coating's anti-static indicators; Second, there are compressive strength, tensile strength and wear resistance, as well as the usual chemical resistance. Therefore, in the formulation design, epoxy resin is basically selected as the base material, and conductive materials, fillers, solvents, and additives are added to form an anti-static epoxy floor coating.
In the epoxy resin anti-static floor coating, according to the type of coating can be divided into self-flow plateau epoxy coating and solvent-based epoxy coating:
1. Anti-static epoxy self-flowing flat coating: It has the advantages of smooth surface, high hardness and good wear resistance. It is most suitable for places where the level of air is more than 1,000;
2. Anti-static epoxy solvent-based paint: The price is lower than the self-flow plateau, the control resistance value is convenient, and the wear resistance and hardness are worse than the self-flow plateau. It is suitable for places where the air stratosphere is below class 1000.
According to the conductive materials used, conductive fibers, conductive mica powder, conductive metal powders and conductive additives can be classified into four types:
1, conductive fibers:
Advantages: high strength, low oil absorption, good electrical conductivity, low added volume, and low cost.
Disadvantages: poor control of the resistance value, easy to cause breakdown, causing harm, poor dispersion, uneven distribution of the coating resistance value.
2, conductive mica powder:
Advantages: Excellent electrical conductivity, lower specific gravity, lower oil absorption, easier control of resistance value, very uniform dispersion in coating, uniform coating resistance value.
Disadvantages: Large amount of added, higher cost than fiber.
3, conductive metal powder:
Advantages: Excellent electrical conductivity, low price.
Disadvantages: Its own darker color, can not be made light color, the proportion is too large, easy to precipitate, poor dispersion, construction is difficult, and easy to be oxidized.
4, carbon black, graphite:
Advantages: Excellent electrical conductivity, low price.
Disadvantages: It is darker in color and cannot be made light-colored. The amount of oil absorption is too high to make high solid content coatings.
5, conductive additives:
Advantages: low price, evenly distributed.
Disadvantages: Ease of migration, anti-static function of the short-term effect, generally about six months, only for temporary anti-static sites.
In the epoxy resin anti-static floor coating, according to the type of coating can be divided into self-flow plateau epoxy coating and solvent-based epoxy coating:
1. Anti-static epoxy self-flowing flat coating: It has the advantages of smooth surface, high hardness and good wear resistance. It is most suitable for places where the level of air is more than 1,000;
2. Anti-static epoxy solvent-based paint: The price is lower than the self-flow plateau, the control resistance value is convenient, and the wear resistance and hardness are worse than the self-flow plateau. It is suitable for places where the air stratosphere is below class 1000.
According to the conductive materials used, conductive fibers, conductive mica powder, conductive metal powders and conductive additives can be classified into four types:
1, conductive fibers:
Advantages: high strength, low oil absorption, good electrical conductivity, low added volume, and low cost.
Disadvantages: poor control of the resistance value, easy to cause breakdown, causing harm, poor dispersion, uneven distribution of the coating resistance value.
2, conductive mica powder:
Advantages: Excellent electrical conductivity, lower specific gravity, lower oil absorption, easier control of resistance value, very uniform dispersion in coating, uniform coating resistance value.
Disadvantages: Large amount of added, higher cost than fiber.
3, conductive metal powder:
Advantages: Excellent electrical conductivity, low price.
Disadvantages: Its own darker color, can not be made light color, the proportion is too large, easy to precipitate, poor dispersion, construction is difficult, and easy to be oxidized.
4, carbon black, graphite:
Advantages: Excellent electrical conductivity, low price.
Disadvantages: It is darker in color and cannot be made light-colored. The amount of oil absorption is too high to make high solid content coatings.
5, conductive additives:
Advantages: low price, evenly distributed.
Disadvantages: Ease of migration, anti-static function of the short-term effect, generally about six months, only for temporary anti-static sites.
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