Antistatic optical-grade hydrophobic material and preparation method thereof

Abstract

The invention relates to an antistatic optical-grade hydrophobic material and a preparation method thereof. The antistatic optical-grade hydrophobic material comprises a matrix layer and a hydrophobic functional layer, the hydrophobic functional layer is arranged on one side or two sides of the matrix layer through a thermoplastic binder, and the matrix layer is prepared from the following raw materials in parts by weight: 80-120 parts of first resin matrix, 10-20 parts of antistatic master batch and 5-15 parts of auxiliaries; and the hydrophobic functional layer comprises the following raw materials in parts by weight: 20-30 parts of a second resin matrix, 8 parts of nano silicon dioxide particles, a silane coupling agent component accounting for 1% of the second resin matrix component, and 5 parts of a curing agent, the antistatic optical-grade hydrophobic material provided by the invention has the advantages of good consistency, good compatibility, and excellent antistatic performance and hydrophobic performance, the peeling failure of the hydrophobic layer can be effectively avoided, and the material has the advantages of high mechanical property, high light transmittance and long service life.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antistatic optical-grade hydrophobic material and a preparation method thereof. Background technique [0002] Static dissipative materials refer to materials with a surface resistivity of 106 to 1012 ohms, among which materials with a surface resistivity of 1010 to 1012 ohms can prevent the local accumulation of static electricity and can effectively avoid electrostatic dust collection; the surface resistivity is The 106-109 ohm material has the effect of quickly dissipating static electricity, which can effectively prevent potential safety hazards such as electric shock and fire caused by electrostatic discharge. In the fields of optics and electronics / electrical appliances manufacturing, the antistatic properties of antistatic materials are often produced by the action of antistatic agents of macromolecules. Due to their high surface area ratio, antista...

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Problems solved by technology

However, the internal components of its antistatic material are poorly formed, resulting in poor consistency of the product as a whole

[0003] The wettability of the material surface is a complex property. Generally, the contact angle greater than 90 degrees is hydrophobic, and greater than 150 degrees is superhydrophobic. When the material has functional requirements such as antifouling and self-cleaning, a corresponding hydrophobic layer will be used. In the prior art, hydrophobic coatings are usually compounded on the base layer. Although it is simple, convenient and easy to implement, it is easily scratched and washed off after being affected by adverse factors such as external high temperature and impact for a long time. Shedding failure, as disclosed in Patent No. CN107022279B "A Preparation Method for Highly Transparent Wear-Resistant Super-hydrophobic Composite Coating", scrape-coat modified epoxy resin glue on the surface of the substrate as a bonding layer, and then brush the surface hydrophobic Nano-silica dispersion, dry at room temperature, to obtain a highly transparent and wear-resistant epoxy resin / silica super-hydrophobic composite coating, brushed nano-silica dispersion will peel off in a bad environment for a long time, and at the same time Substrate separation

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