Antistatic protective film and preparation method thereof

A protective film, anti-static technology, applied in the direction of film/sheet adhesives, adhesives, etc., can solve the problems of reduced peel strength, fogging, affecting the adhesion of silicone

Inactive Publication Date: 2016-10-26
NALI OPTICAL MATERIAL DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are disadvantages in doing so: antistatic agents are generally compounds with amphoteric groups, which have poor compatibility with silicones, which can easily cause whitening and fogging of the protective film, and affect

Method used

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  • Antistatic protective film and preparation method thereof

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preparation example Construction

[0047] The present invention also provides a kind of preparation method of antistatic protective film, comprises the following steps:

[0048] A) one side of the substrate is coated with UV glue, and is cured by ultraviolet light to obtain a substrate coated with a UV layer; made of material;

[0049] B) coating silica gel glue on the UV layer, after curing, to obtain a silica gel layer;

[0050] C) coating acrylic glue on the other side of the substrate, and obtaining an acrylic glue layer after curing;

[0051] D) Compounding a release layer on the silica gel layer, and compounding a release layer on the acrylic adhesive layer to obtain an antistatic protective film.

[0052] In the present invention, one side of the substrate is preferably coated with UV glue, and after drying and curing, UV curing is carried out to obtain a substrate coated with a UV layer. In the present invention, the combination of the substrate and the UV glue The composition, dosage and source are ...

Embodiment 1

[0060] Preparation of UV glue: UV glue adopts 60 parts of BTF-220 UV glue provided by Dongguan Betley Company. Mix 1 part of antistatic agent (ATS-A5 provided by Shanghai Zecheng Chemical Co., Ltd.) and 15 parts of solvent to obtain UV glue;

[0061] Preparation of silicone glue: use 7651 type silicone glue provided by Dow Corning.

[0062] Choose a 20μm PET (JMC-900 provided by Suzhou Dawan Plastic Electronics Co., Ltd.) substrate, and apply UV glue on one side of the substrate. / cm UV lamp energy curing, get 2μm thick UV adhesive layer.

[0063] Use a scraper to coat a layer of silicone glue on the UV glue layer, and cure it in an oven at 150°C for 60 seconds to obtain a 22 μm thick silicone layer, and then cover the silicone layer with a 20 μm PET film.

[0064] Use a scraper to apply acrylic glue (S-804A type acrylic glue provided by Hesheng International Co., Ltd.) on the other side of the substrate, and cure it in an oven at 80°C for 60s to obtain a 30μm thick acrylic ...

Embodiment 2

[0066] Preparation of UV glue: UV glue adopts 60 parts of BTF-220 UV glue provided by Dongguan Betley Company. Mix 3 parts of antistatic agent (ATS-A5 provided by Shanghai Zecheng Chemical Co., Ltd.) and 15 parts of solvent to obtain UV glue;

[0067] Preparation of silicone glue: use 7651 type silicone glue provided by Dow Corning.

[0068] Choose 80μm PET base material (JMC-900 provided by Suzhou Dawan Plastic Electronics Co., Ltd.), and apply UV glue on one side of the base material. / cm UV lamp energy curing, get 3μm thick UV adhesive layer.

[0069] Use a scraper to coat a layer of silicone glue on the UV glue layer, and cure it in an oven at 180°C for 90s to obtain a 35 μm thick silicone layer, and then cover the silicone layer with an 80 μm PET film.

[0070] Use a scraper to apply acrylic glue on the other side of the substrate, and cure it in an oven at 120°C for 90s to obtain a 45 μm thick acrylic adhesive layer, and then cover the acrylic adhesive layer with a 60 ...

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Abstract

The invention provides an antistatic protective film which comprises a stripping layer, a silica gel layer compounded on the stripping layer, a UV (Ultraviolet) layer compounded on the silica gel layer, a substrate layer compounded on the UV layer, an acrylic adhesive layer compounded on the substrate layer and a release layer compounded on the acrylic adhesive layer; the UV layer is made of a material comprising an acrylic monomer, a prepolymer, a photoinitiator and an antistatic agent. The UV layer is formed after the antistatic agent is mixed with a UV adhesive, can achieve an antistatic effect through reducing the volume resistance of the material, is less affected by environmental humidity and also has less influences on the performance of the protective film self. In addition, even if an outermost layer is not coated with the UV layer in the antistatic protective film, a better antistatic effect can also be achieved. Experimental results show that the surface resistance of the protective film provided by the invention can reach 109 ohms. The invention further provides a preparation meted of the antistatic protective film.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antistatic protective film and a preparation method thereof. Background technique [0002] At present, tempered glass protective film has been widely popularized in the market, and its anti-drop and scratch-resistant characteristics are loved by consumers. The structure of the current tempered glass protective film mainly includes a peeling layer, a use layer and a release layer. Among them, the use layer is the core part, which is composed of a base material coated with a silica gel layer and an acrylic layer respectively. It is easy to accumulate static electricity during use, so it is easy to absorb dust and impurities, cause pollution, and easily cause the tempered glass to fall off. [0003] At present, antistatic additives are usually added to the acrylic adhesive layer or organic silica gel layer in the market to achieve antistatic effect. But th...

Claims

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Application Information

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IPC IPC(8): C09J7/02
CPCC09J2423/106C09J2433/00C09J2467/005C09J2467/006C09J2483/005C09J7/22C09J7/30
Inventor 朱文峰
Owner NALI OPTICAL MATERIAL DONGGUAN
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