Anti-static black PET film for mobile phone and preparation method of anti-static black PET film

Abstract

The invention provides an anti-static black PET film for a mobile phone and a preparation method of the anti-static black PET film, and belongs to the technical field of PET materials. The anti-static black PET film is prepared from the following raw materials in parts by weight: 5-12 parts of manganese dioxide silver-loaded nano powder, 0.5-1 part of a tetrazole polymer, 3-10 parts of a polyaniline coated nano titanium dioxide / benzotriazole compound, 80-100 parts of PET resin, 2-4 parts of a coupling agent, 0.1-0.4 part of a lubricant, 1-2 parts of a flexibilizer and 0.1-0.3 part of an antioxidant; the tetrazole polymer has a structure represented by the following formula I described in the specification, wherein n=100-500. According to the anti-static black PET film for the mobile phone and the preparation method of the anti-static black PET film, the technological method is simple, the processing cost is low, and the prepared black PET film has excellent anti-static performance, antibacterial performance and shading performance, can be used in a protective film of a mobile phone screen and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of PET materials, in particular to an antistatic black PET film for mobile phones and a preparation method thereof. Background technique [0002] With the development of industry, electronic products such as mobile phones, tablets, computers, and smart wearables are becoming more and more popular. The production industry of electronic components such as semiconductors is growing day by day, and the integration of electronic components and electronic circuits is getting higher and higher. However, parts such as electronic semiconductor components have poor antistatic ability and are easily affected by micro currents to cause failures, especially when the electrostatic voltage is high, it is easy to cause permanent damage. [0003] Currently commonly used metal oxide films, such as ITO (Sn-doped In 2 o 3 ), IMO (Mo doped In 2 o 3 ) etc., although they have excellent comprehensive optoelectronic properties,...

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Problems solved by technology

However, parts such as electronic semiconductor components have poor antistatic ability, and are easily affected by micro currents and cause failures, especially when the electrostatic voltage is high, it is easy to cause permanent damage

[0003] Currently commonly used metal oxide films, such as ITO (Sn-doped In 2 o 3 ), IMO (Mo doped In 2 o 3 ) etc., although they have excellent comprehensive optoelectronic properties, but their In 2 o 3 The price is expensive, the cost is high, and indium is highly toxic, whether it is harmful to the human body or the material.

[0004] PET resin is polyethylene terephthalate plastic, commonly known as polyester resin, which is a condensation polymer of terephthalic acid and ethylene glycol, and together with PBT is collectively referred to as thermoplastic polyester, or saturated polyester, PET resin molecular structure It is highly symmetrical and has a certain crystal orientation ability, so it has high film-forming properties. PET resin has good weather resistance. In addition, PET resin has excellent wear resistance, friction resistance, dimensional stability and electrical insulation. Made of PET PET bottles have high strength, non-toxicity, anti-penetration, light weight and high production efficiency, so they are widely used. However, PET resin has high transparency, poor antistatic effect, strong light transmission, slow crystallization speed, and poor impact resistance. , not easy to process

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