Anti-glare and anti-static light radiation curing coating composition

Abstract

The invention discloses an anti-glare and anti-static light radiation curing coating composition. The coating composition comprises the following components in parts by weight: 5-10 parts of a fluorine-modified acrylate oligomer, 50-65 parts of an acrylate oligomer, 10-20 parts of an acrylate monomer, 4-6 parts of a photoinitiator, 0.2-5 parts of an anti-static additive, 0.2-3 parts of polytetrafluoroethylene wax-modified white carbon black and 0.5-2 parts of additives. The coating composition disclosed by the invention adopts the radiation curable anti-static additive matched with fluorine-modified anti-glare particles, and is directly used in an existing PMMA (polymethylmethacrylate) plate hardened coating system; and after curing, a coating has anti-glare, anti-fouling and anti-static effects, and the effects are further obvious and lasting.

Description

technical field [0001] The invention relates to the field of radiation curing coatings, in particular to an antiglare and antistatic radiation curing coating composition. Background technique [0002] Ultraviolet curing coatings (UV coatings) are developing rapidly. Because the cured coatings have the advantages of excellent scratch resistance, high hardness, and good fullness, and because of their advantages in high efficiency, energy saving, environmental protection, and economy, they are widely used in construction, It is widely used in sporting goods, electronic communication, packaging materials and auto parts. Transparent plastic materials have the advantages of high light transmission and low density, and are used more and more in the optical field, such as touch screens and various protective covers. At present, the use of transparent plastic requires a layer of hard coating on its surface, on the one hand to improve its hardness and wear resistance, and on the othe...

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Problems solved by technology

[0005] Patent CN101299073 mentions that a kind of anti-fouling and anti-glare coating can be obtained after adding modified silicone acrylic acid and anti-glare particles to UV coating and curing. This coating does not have antistatic property and is easy to adhere to dust. The added anti-glare particles are not treated and are prone to precipitation; CN101235244 relates to a UV-cured coating added with organic-inorganic silica particles, which improves the light transmittance of the coating, but it still does not have antistatic properties; Patent No. Mention a kind of antistatic, anti-glare coating in CN1084774, but do not have antifouling performance, not only difficult to wipe clean after adhering to the coating, and there is more wiping, the trend that dirt area is bigger, and this coating is hot in addition Curing non-UV light curing has low efficiency and high energy consumption; CN101251608, CN101354454, and CN102762644 use organic particles to achieve the purpose of anti-glare, but in the presence of monomers or solvents, organic particles will swell, and after swelling, the organic particles will swell. To reduce the anti-glare effect of the coating, that is, to reduce the storage time of the coating, in addition, after the organic particles settle and add swelling effect, a hard lump will form at the bottom of the container, which is difficult to completely stir again. In addition, it has not achieved the antifouling and antistatic three The effective combination of the performance of the former, its common synergistic effect also can't show; CN101679798, CN102959020, CN102676004 have anti-glare function, but do not have antifouling property or antistatic property; Application number CN103555156 relates to a kind of antifouling, antistatic coating, But it does not have anti-glare function; CN103351677 adds fluorine, silicon additives, antistatic additives, and antifouling resin to UV light-curing coatings, and the coating has antistatic properties after the matte roller embosses the matte effect , anti-fouling and anti-glare three properties, but the anti-glare performance obtained by rolling will significantly reduce the anti-fouling and anti-static effects, because after the coating is coated, the anti-fouling and anti-static additives migrate to the surface In order to fully express its effect, but the complete structure of antifouling and antistatic additives will be destroyed when the matte roller is embossed. In addition, this method requires high precision and uniformity of the matte roller. As the matte roller is worn, The haze and anti-glare effect will change and affect the stability of the product. Finally, this method is difficult to coat on the brittle and hard PMMA sheet

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