Preparation method of two-component waterborne polyurethane antistatic floor coating

A water-based polyurethane and floor coating technology, applied in polyurea/polyurethane coatings, conductive coatings, coatings, etc., can solve the problems of poor dispersion, reduced strength, uneven distribution of coating resistance values, etc., to achieve excellent water resistance, The effect of excellent extensibility

Inactive Publication Date: 2016-03-02
GUANGDONG HUALONG COATING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, almost all water-based antistatic floor coatings are water-based epoxy antistatic floor coatings, but they have the following defects: (1) Poor water resistance and cannot resist heavy underground moisture. It cannot be penetrated. If the concrete base of the ground floor on the first floor is not provided with a moisture-proof isolation layer, once the underground moisture is too heavy, it is easy to lift the epoxy floor coating, and a bulge will be formed in the early stage, and then it will crack and fall off. cloth with use
⑵ Low mechanical strength, poor scratch resistance, epoxy floor coating has poor scratch resistance to sand, iron filings and other sharp and hard objects
(3) Poor high temperature resistance. When the vehicle is driving too fast, once there is a sudden brake or a sharp turn, the epoxy floor coating will be softened due to the short-term high temperature due to sharp friction, and the dust on the vehicle tires will penetrate into it. The interior of the epoxy floor coating causes local scratches and discoloration of the epoxy floor coating. The only solution is partial repair
⑷The weather resistance and aging resistance are poor, and the epoxy resin floor has poor anti-ultraviolet ability, so it cannot be used outdoors for a long time, otherwise it will accelerate aging, such as discoloration, reduced strength, or even pulverization, delamination, etc.
[0004] According to conductive materials, there are conductive fiber floor paints, conductive mica powder floor paints, conductive metal powder floor paints, carbon black graphite and low molecular weight conductive additive floor paints: (1) Conductive fiber: has very High strength, very low oil absorption, good electrical condu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1), the preparation of water-based two-component polyurethane antistatic floor paint primer component A: according to the formula weight ratio, add 8.5 parts of deionized water into the dispersion bucket, add 3 parts of propylene glycol, 2 parts of dispersant, 0.2 parts of fungicide, 0.3 parts of defoamer, 20 parts of quartz powder, 5 parts of barium sulfate, 3 parts of kaolin, 8 parts of conductive mica powder, high-speed dispersion for 30-40 minutes, and grind until the fineness of the slurry reaches 40 μm. Put it into the paint mixing tank, add 40 parts of polyether polyol polyurethane dispersion, 6 parts of silver-plated glass microsphere powder under medium speed stirring, then add 3 parts of film-forming aid, 0.2 part of substrate wetting agent, 0.2 part of leveling agent, 0.3 part of pH regulator and 0.3 part of thickener were filtered and packaged to prepare component A of a gray water-based two-component polyurethane antistatic floor paint primer.

[0029] 2) P...

Embodiment 2

[0032] 1) Preparation of water-based two-component polyurethane antistatic floor paint topcoat component A: According to the formula weight ratio, add 8.5 parts of deionized water into the dispersion bucket, add 1.2 parts of dispersant, 3 parts of propylene glycol, 0.2 parts of fungicide, 0.3 parts of defoaming agent, 12 parts of quartz powder, 5 parts of titanium dioxide, 3 parts of sericite powder, high-speed dispersion for 30-40 minutes, and grind the slurry to a fineness of 40 μm, and grind the slurry into In the paint mixing tank, add 46 parts of polyester polyol polyurethane dispersion, 2 parts of matte powder, 4 parts of silver-plated glass microbead powder, 6 parts of quaternary ammonium methacrylate, and water-based phthalocyanine green paste under medium speed stirring 5 parts, then add 3 parts of film-forming aids, 0.2 parts of anti-scratch leveling agent, 0.3 parts of pH regulator and 0.3 parts of thickener at a constant speed, filter and pack to prepare a green wat...

Embodiment 3

[0036] 1) Preparation of water-based two-component polyurethane antistatic floor paint primer component A: According to the weight ratio of the formula, add 7.5 parts of deionized water into the dispersion bucket, add 2 parts of dispersant, 2 parts of propylene glycol, 0.2 parts of bactericide, 0.3 parts of defoamer, 20 parts of quartz powder, 5 parts of barium sulfate, 3 parts of titanium dioxide, 7 parts of conductive mica powder, high-speed dispersion for 30-40 minutes, grinding until the fineness of the slurry reaches 40 μm, and grinding the slurry Put the material into the paint mixing tank, add 42 parts of polyether polyol polyurethane dispersion and 7 parts of silver-plated talcum powder under medium speed stirring, then add 3 parts of film-forming aid, 0.2 part of substrate wetting agent, and flow 0.2 part of leveling agent, 0.3 part of pH regulator and 0.3 part of thickener, filtered and packaged to prepare a white water-based two-component polyurethane antistatic floo...

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PUM

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Abstract

The invention discloses a preparation method of a two-component waterborne polyurethane antistatic floor coating. The coating is composed of a base coat and a face coat. A base coat component A is composed of polyether polyols polyurethane, filler, silver-plated conductive materials, conductive mica powder, an additive and the like. A face coat component A is composed of polyester polyol or polycarbonate glycol polyurethane, titanium dioxide, filler, silver-plated conductive materials, a polymer antistatic agent, an additive and the like. A curing agent component B is composed of polyether polyol and diisocyanate. The ratio of A to B is 1:0.3-0.7 (W/W). The antistatic floor coating obtained through the preparation method meets the technical requirements of GB/T 22374-2008, HG/T 3829-2006 and SJ/T 11294-2003 standards, has the excellent waterproof, weatherproof, anti-aging, acid and alkali resisting and oil contamination resisting performance and the excellent impact resistance, friction resistance and skid resistance, and meets the antistatic requirements of top-grade plants, hospitals, ultra-clean plants and the like.

Description

technical field [0001] The invention relates to a preparation method of an antistatic coating, in particular to a two-component waterborne polyurethane antistatic floor coating. Background technique [0002] Antistatic coatings are a group of special functional coatings with volume resistivity within a certain range. With the development of modern technology, some floors with clean and antistatic requirements, such as in electronic and electrical workshops, computer rooms, hospitals, printing factories, There are also more applications in textile factories and pharmaceutical factories, and antistatic floor coatings are more and more widely used. [0003] At present, almost all water-based antistatic floor coatings are water-based epoxy antistatic floor coatings, but they have the following defects: (1) Poor water resistance and cannot resist heavy underground moisture. It cannot be penetrated. If the concrete base of the ground floor on the first floor is not provided with ...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D175/06C09D175/04C09D7/12C09D5/24
Inventor 许钧强麦宗毅余庆福
Owner GUANGDONG HUALONG COATING IND
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