Antistatic paint, antistatic thin film and preparation method of the antistatic thin film

Abstract

The invention provides an antistatic paint, an antistatic thin film and a preparation method of the antistatic thin film. The antistatic paint comprises a hard coating paint and an antistatic agent. The hard coating paint comprises the following components by weight: 20 to 35 parts of acrylic oligomer, 5 to 10 parts of acrylic monomer, 40 to 60 parts of a solvent and 1 to 5 parts of a photoinitiator. The antistatic agent comprises the following components by weight: 0.5 to 5 parts of polyacrylic acid and 1 to 20 parts of an ionic liquid. The surface pencil hardness of the antistatic thin film formed by coating the antistatic paint provided by the invention reaches 2H, the initial surface resistivity can reach 10<8> to 10<11> ohm / sq., the surface resistivity can be still 10<10> to 10<12> ohm / sq. after the thin film is wiped by the solvent, and therefore the antistatic thin film has the characteristics of high weathering resistance, high hardness, low surface resistance and good optical effects.

Description

technical field [0001] The present invention relates to an antistatic coating, and in particular to an antistatic coating containing ionic liquid. The antistatic film formed by the antistatic coating has the characteristics of high hardness and low surface resistance. Background technique [0002] In recent years, with the improvement and upgrading of semiconductor and optoelectronic component manufacturing technologies, flat-panel displays including liquid crystal displays (Liquid Crystal Display, LCD) and plasma displays (Plasma Display Panel, PDP) have gradually become popular in modern families. and in the office. In order to prevent the panel surface of the flat-panel display from being scratched by external forces or from being bonded to dust in the air due to static electricity, a layer of scratch-resistant antistatic film is usually added in front of the flat-panel display. In addition, antistatic film can be applied on the surface of the display, and products that ...

AI Technical Summary

Problems solved by technology

However, particles or powders often affect the optical properties of the film, resulting in poor transparency, which in turn affects the effect of optical products

In addition, in the hardening process of the film material, it is easy to make the surface hardness insufficient due to incomplete hardening.

In addition to methods such as adding surfactants or ionic liquids to the raw materials that make up the article, its antistatic performance is easily affected by the humidity of the ambient atmosphere, and it is also washed by water, alcohols, etc. The antistatic layer disappears, the durability is not enough due to friction and it is easy to fall off, or the transparency is affected by the white fog of the film material, etc.

However, if a multi-layer structure is used to manufacture antistatic films by multiple coating methods, multiple coatings are required during the manufacturing process, which will increase unnecessary manufacturing costs

In addition, metal oxides such as ITO (Indium Tin Oxide) are transparent and use electron conduction as a conductive mechanism. Although they are suitable for the above requirements, since sputtering equipment must be used during film formation, not only the process changes complex and costly to manufacture

Moreover, the flexibility of the inorganic metal oxide coating film is low. When a film is formed on a thin substrate, the coating film may be severely cracked, and the conductivity cannot be exhibited.

In addition, due to the low adhesion between metal oxides and organic substrates, there is a risk of delamination at the interface and a decrease in transparency

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