Mist-surface release agent

A technology of release agent and matte surface, which is applied in the direction of adhesives, film/sheet adhesives, coatings, etc., can solve problems such as poor release, inconsistent depth, and uneven uneven surface of the film, and achieve production The effect of simple process, stable peeling force and convenient operation

Active Publication Date: 2012-01-25
太仓斯迪克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

The disadvantages of this method are: the depth of grinding is inconsistent, the unevenness of the surface of the film causes the peeling force of the release film to be unstable, and there is a risk of poor release, and the haze of the pressure-sensitive adhesive surface is uneven, resulting in product waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: a kind of mist surface release agent, raw material formula is made up of the following material of mass percentage content:

[0040] Hydroxy silicone oil 27%;

[0041] Curing agent 2%;

[0042] Catalyst 6%;

[0043] Polyurethane adhesive 42%;

[0044] Fumed silica 3%;

[0045] Filler 20%;

[0046] The curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; the filler is talcum powder with a particle diameter less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 8000 cps. The viscosity of the polyurethane adhesive is 2000cps.

[0047] The preparation method of the release agent: weigh the raw materials according to the raw material formula, place them in a container, and then stir them evenly with a stirrer at a stirring speed of 300 rpm. When in use, it is coated on the surface of the PET film substrate to obtain a release film.

Embodiment 2 5

[0048] Embodiment 2~5: A kind of matte release agent

[0049] 1. The raw material formula is shown in the following table:

[0050] Embodiment two Embodiment Three Embodiment four Embodiment five Hydroxy silicone oil 25% 35% 25% 30% Hardener 1% 2% 1% 3% catalyst 5% 6% 5% 5% polyurethane adhesive 50% 35% 34% 33% fumed silica 3% 4% 5% 2% filler 16% 18% 30% 27%

[0051] Note, the % in the table represents the mass percentage content.

Embodiment 2

[0052] The viscosity of the hydroxy silicone oil described in Example two is 10000cps. The viscosity of the hydroxy silicone oil described in Example three is 14000cps. The viscosity of the hydroxy silicone oil described in Example 4 is 16000cps. The viscosity of the hydroxyl silicone oil described in Example five is 13000cps.

[0053] The viscosity of the polyurethane adhesive described in Example 2 is 2100cps. The viscosity of the polyurethane adhesive described in Example 3 is 2300cps. The viscosity of the polyurethane adhesive described in Example 4 is 2500 cps. The viscosity of the polyurethane adhesive described in Example five is 2700cps.

[0054] Two, preparation method is the same as embodiment one.

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Abstract

The invention discloses a mist-surface release agent, which consists of the following components: 25 to 35 percent of hydroxy silicone oil, 0.5 to 4 percent of curing agent, 2 to 8 percent of catalyst, 15 to 55 percent of polyurethane adhesive, 0.3 to 5 percent of aerosol and 10 to 50 percent of filler. The curing agent is methyl hydrogen polysiloxane oil; the catalyst is platinum; and the filler is talcpowder of which the particle diameter is less than or equal to 15 micrometers. The mist-surface release agent has stable stripping strength and makes the adhesive surface of a pressure sensitive adhesive have a good haze effect, and the adhesive surface has a low reflection effect.

Description

technical field [0001] The invention relates to a fog surface release agent, which belongs to the technical field of release material preparation. Background technique [0002] The release film is coated with silicone release agent on the surface layer of environmentally friendly PET, PE, OPP film substrates, so that it can exhibit extremely light and stable release force for various organic pressure-sensitive adhesives. [0003] Different organic pressure-sensitive adhesives, such as hot-melt adhesives, acrylic adhesives, and pressure-sensitive adhesives of rubber systems, etc., require different release forces of the release film. Correspondingly adjusted to achieve an extremely light and stable release force during peeling. [0004] In order to make the rubber surface of the pressure-sensitive adhesive reach a certain degree of concave-convex shape, the rubber surface has a certain degree of haze (roughness) and low reflection effect, and there is a comfortable feeling w...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K3/36C09D183/06C08L83/06C09D7/12C09J7/00C09D183/05C08K3/34C09D175/04C08L83/05
Inventor 金闯
Owner 太仓斯迪克新材料科技有限公司
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