A kind of antistatic wear-resisting polyurethane floor coating and preparation method thereof

Abstract

The invention discloses an antistatic wear-resistant polyurethane floor paint and a preparation method thereof. The antistatic wear-resistant polyurethane floor coating of the present invention is composed of A component, B component and C component according to the mass ratio (2~3):(2~3):(4~5), and A component is composed of polymerized Polyol, carbon nanotubes, dispersant, defoamer, leveling agent, wetting agent, chain extender, catalyst and color paste, component B consists of plant polyol, hydroxyl-terminated polysiloxane and aliphatic isocyanate Composition, C component is wear-resistant aggregate. The construction thickness of the polyurethane floor coating of the present invention is small, and the formed floor has properties such as permanent antistatic performance, super wear resistance, scratch resistance, anti-slip, and chemical corrosion resistance, and can be applied in high-load, high-traffic-flow environments. Industrial plants.

Description

technical field [0001] The invention relates to an antistatic wear-resistant polyurethane floor coating and a preparation method thereof, belonging to the technical field of floor coatings. Background technique [0002] Static electricity exists widely in nature. With the extensive application of polymer materials, people pay more and more attention to electrostatic electrification. While static electricity is used by human beings, it also brings disasters to human life and production. Because the floor is often subject to friction, it is easy to accumulate a large amount of static electricity, which will hinder the production process and affect product quality, and even cause fires, explosions and other safety accidents. There are two main methods to prevent polymer materials from being charged with static electricity: 1) changing the structure of the material to make it conductive; 2) adding conductive additives or conductive fillers. For polyurethane materials, the forme...

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Problems solved by technology

However, conductive additives or conductive fillers have their own defects: conductive additives have poor timeliness and fail after a period of time, and cannot maintain good electrical conductivity for a long time; conductive fillers have poor electrical conductivity and need to be added in large quantities to obtain good electrical conductivity. Conductive performance, but at the same time it will cause the cost of the coating to rise and the overall performance to decline, and the color of the conductive filler is deep and the oil absorption is large. Adding a large amount will affect the color and leveling effect of the coating

[0003] At present, the anti-static floors on the market have disadvantages such as poor wear resistance, poor skid resistance, poor weather resistance, and large construction thickness, which cannot meet the requirements of industrial plant floors with load requirements and high traffic flow. For example: CN 109627914A discloses an epoxy antistatic floor coating, which realizes antistatic function by adding conductive mica powder and conductive fibers, but the floor has poor wear resistance and poor weather resistance; CN 106946514A discloses an antistatic polyurethane mortar floor Floor, the floor not only has antistatic function, but also has excellent physical and mechanical properties and chemical resistance, but its construction thickness is more than 3mm, and the construction cost is high; CN 107964341A discloses a new type of polyurethane antistatic coating, through Adding single-wall carbon nanotubes to achieve anti-static function, the obtained floor has excellent weather resistance, but because of the addition of external plasticizer, the external plasticizer is easy to migrate during the use of the floor, which will affect the floor Various mechanical properties, reducing the service life of the floor

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