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Solvent-resistant antistatic film

An antistatic film and antistatic technology, which is applied in the direction of adhesives, conductive coatings, film/sheet release coatings, etc., can solve problems such as large humidity variation range, product uncertainty risk, and unstable antistatic performance. Small change in resistance, reduced chance of damage, and stable anti-static performance

Active Publication Date: 2022-05-06
ZHEJIANG OUREN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing antistatic film is greatly affected by the ambient humidity, and its antistatic performance is unstable. Therefore, due to the large range of humidity changes in the process or use environment of electronic products coated with antistatic film, it brings uncertainty to the product. risks of

Method used

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Examples

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Effect test

Embodiment 1~4

[0031] Examples 1-4: A solvent-resistant antistatic film includes a substrate layer 1, a first antistatic coating 2 and a second antistatic coating 3, wherein the first antistatic coating 2 and the second antistatic coating 3 are respectively located on the upper and lower surfaces of the substrate layer 1, and a pressure-sensitive adhesive layer 4 is located between a release layer 5 and the second antistatic coating 3, and the pressure-sensitive adhesive layer 4 is located on the surface of the second antistatic coating 3 opposite to the substrate layer 1.

[0032] The first antistatic coating 2 and the second antistatic coating 3 are both obtained by drying coating liquid, which consists of the following components in parts by weight, as shown in Table 1:

[0033] Table 1

[0034] ;

Embodiment 1

[0035] In Example 1, the antioxidant is selected from antioxidant 1010, the leveling agent is selected from leveling agent 440, the base layer 1 is a PET layer, the thickness of the base layer 1 is 50μm, and the thicknesses of the first antistatic coating 2 and the second antistatic coating 3 are both 6 μ m.

Embodiment 2

[0036]In Example 2, the antioxidant is selected from antioxidant 1024, the leveling agent is selected from leveling agent DC57, the base layer 1 is TPU layer, the thickness of the base layer 1 is 50μm, and the thicknesses of the first antistatic coating 2 and the second antistatic coating 3 are both 6 μ m.

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Abstract

The invention discloses a solvent-resistant antistatic film, which comprises a substrate layer, a first antistatic coating and a second antistatic coating, and the first antistatic coating and the second antistatic coating are respectively located on the base The upper surface and the lower surface of the material layer, a pressure-sensitive adhesive layer is located between the release layer and the second antistatic coating; the first antistatic coating and the second antistatic coating are dried by the coating liquid Obtained, this coating solution is made up of the following components by weight: polyurethane resin, polyvinyl alcohol, sodium octyl sulfate, N-ethyl-N-(3-sulfopropyl)-3-methylaniline sodium salt, p- Dioctyl phthalate, n-butanol, isobutyl acetate, castor oil polyoxyethylene ether, triethylenetetramine, silane coupling agent, antioxidant, leveling agent. The invention not only improves the antistatic performance, but also enables the solvent-resistant antistatic film to have a small change in surface resistance and stable antistatic performance under the condition of large changes in environmental humidity, so that it is suitable for complex electronic product processes and climates. Greatly reduces the chance of damage to electronic products.

Description

Technical field [0001] The invention belongs to the technical field of protective films, in particular to a solvent-resistant antistatic film. technical background [0002] On the one hand, the surfaces of electronic products and other products are vulnerable to contact pollution or abrasion marks during handling and use. On the other hand, under the demand that electronic devices need to be thinner and shorter, the power density of electrical operation needs to be continuously improved. The application occasions of these electronic products generally require anti-static, because the existence of static electricity not only makes the surface of the products easy to absorb dust, but also affects the accuracy of circuits, or leads to circuit breakdown during the processing of electronic products, resulting in product failure. Therefore, it is necessary to treat the protective film with electrostatic protection. [0003] The existing antistatic film is greatly affected by the enviro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/25C09J7/50C09D175/04C09D129/04C09D5/24
CPCC09D5/24C09J2475/003C09J7/38C09J2301/302C09J7/255C09J7/50C09J7/40C09J2467/006C09J2203/318C09J2301/122C09J2429/003C09D175/04C09J7/25C09D129/04C09K3/16
Inventor 涂大记杨晓明潘华
Owner ZHEJIANG OUREN NEW MATERIALS CO LTD
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