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Antistatic protective film and manufacturing method thereof

A protective film, anti-static technology, applied in conductive adhesives, film/sheet adhesives, adhesives, etc., can solve the requirements that can not meet the anti-static performance of protective films, the curing difficulties of protective film products, platinum catalysts Poisoning and other problems, to achieve good electrostatic conduction performance, better adhesion, and less adhesion climb

Inactive Publication Date: 2017-11-03
宁波启合新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the former mentioned setting an antistatic layer on one side of the PET sheet layer and setting a silica gel layer on the other side can only properly reduce the adsorption of impurities and dust, and the silica gel layer will still be generated and accumulated during use. Static electricity can damage electronic components; the addition of lithium salts to silica gel can cause platinum catalyst poisoning, and the final protective film product will also have problems with curing difficulties or poor adhesion of the adhesive layer after curing
[0005] Therefore, the current silicone protective film still cannot meet the market's requirements for the antistatic performance of the protective film.

Method used

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  • Antistatic protective film and manufacturing method thereof
  • Antistatic protective film and manufacturing method thereof
  • Antistatic protective film and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0026] An antistatic protective film, comprising a release film layer 1, an adhesive layer 2, a substrate layer 3, such as figure 1 shown. The release film layer 1 is a non-silicon release film, the substrate layer 3 is a TPU film with an antistatic coating on one or both sides, and the raw materials for the preparation of the adhesive layer 2 include 80 parts by weight of low-viscosity silicone adhesive, 20 parts by weight of High-viscosity silicone adhesive, 1.0 parts by weight of curing agent, 5.0 parts by weight of anchoring agent, 0.5 parts by weight of catalyst, and 2.0 parts by weight of carbon black slurry conductive additive. Specifically, the adhesion of the above-mentioned high-viscosity silicone adhesive is ≥500g / 25mm, the adhesion of the low-viscosity silicone adhesive is ≤300g / 25mm, the curing agent is SYL-OFF(R)SL 7028CROSSLINKER from Dow Corning, the anchoring It is SYL-OFF (R) 297 ANCHORAGE ADDITIVE of Dow Corning Corporation of the United States, the catalys...

Embodiment 2

[0029] An antistatic protective film, comprising a release film layer 1, an adhesive layer 2, a substrate layer 3, such as figure 1 shown. The release film layer 1 is a polyethylene terephthalate film, the substrate layer 3 is a PET film with an antistatic coating on one or both sides, and the raw material for the preparation of the adhesive layer 2 includes 80 parts by weight of a low-viscosity silicone adhesive , 20 parts by weight of high-viscosity silicone adhesive, 10 parts by weight of curing agent, 10 parts by weight of anchoring agent, 0.2 parts by weight of catalyst, and 3.0 parts by weight of graphite slurry conductive additive. Specifically, the adhesion of the above-mentioned high-viscosity silicone adhesive is ≥500g / 25mm, the adhesion of the low-viscosity silicone adhesive is ≤300g / 25mm, and the curing agent is China National Bluestar Silicone Co., Ltd. Crosslinker 96A, the anchoring agent is from China National Bluestar Silicone Co., Ltd. ADD 208, catalyst fo...

Embodiment 3

[0032] An antistatic protective film, comprising a release film layer 1, an adhesive layer 2, a substrate layer 3, such as figure 1shown. The release film layer 1 is a fluorine release film, the substrate layer 3 is a PAR film with an antistatic coating on one or both sides, and the raw materials for the preparation of the adhesive layer 2 include 40 parts by weight of low-viscosity silicone adhesive, 60 parts by weight of High-viscosity silicone adhesive, 2.0 parts by weight of curing agent, 3.0 parts by weight of anchoring agent, 1.5 parts by weight of catalyst, and 2.5 parts by weight of graphene slurry conductive additive. Specifically, the adhesion of the above-mentioned high-viscosity silicone adhesive is ≥500g / 25mm, the adhesion of the low-viscosity silicone adhesive is ≤300g / 25mm, the curing agent is SYL-OFF(R)SL 7028CROSSLINKER from Dow Corning, the anchoring It is SYL-OFF (R) 297ANCHORAGE ADDITIVE of Dow Corning Corporation of the United States, the catalyst is SYL-...

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Abstract

The invention provides an antistatic protective film. The antistatic protective film comprises a release film layer, an adhesive layer and a base material layer; the antistatic protective film is characterized in that the adhesive layer is prepared from the following components in parts by weight: 100 parts of an organosilicone adhesive, 1.0 to 10.0 parts of a curing agent, 0.1 to 10.0 parts of an anchoring agent, 0.2 to 2.0 parts of a catalyst and 0.1 to 3.0 parts of a conductive assistant; one surface or two surfaces of the base material layer is or are coated with an antistatic coating layer. The invention also provides a manufacturing method of the antistatic silica gel protective film. The antistatic protective film provided by the invention has low surface resistance, good static conduction performance and excellent adhesion, and the requirements of a market on the antistatic protective film can be met.

Description

【Technical field】 [0001] The invention belongs to the field of antistatic products, and in particular relates to an antistatic protective film and a manufacturing method thereof. 【Background technique】 [0002] Nowadays, the components of electronic products will experience various high-temperature processes during processing, and protective films are generally used for temporary protection. Such protective films mainly include acrylic, silicone, and polyurethane. Polyurethane protective film can generally withstand the temperature of 80°C-100°C. If the temperature is too high, it will easily lead to a large increase in viscosity, and it will be difficult to peel off in the later stage. What’s more, it may contaminate the attached object; acrylic protective film can generally withstand 100°C. The temperature of -130℃, the protective film made of modified acrylic adhesive can withstand the temperature of 150℃-180℃, but as the temperature rises, the viscosity rises very obviou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J183/04C09J9/02
CPCC08L2205/025C09J9/02C09J183/04C09J2301/122C09J2301/312C09J2301/314C09J2301/408C08L83/04C08K3/04
Inventor 刘川李晶
Owner 宁波启合新材料科技有限公司
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