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Aluminum tape

An aluminum foil tape, aluminum foil technology, applied in the direction of adhesive, film/sheet adhesive, coating, etc., can solve the problems of increasing material cost, increasing use cost, unable to realize self-winding, etc., to save production cost, Good bonding, easy to use effect

Inactive Publication Date: 2019-05-10
江苏晶华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

Because the surface energy of the silicon release layer is low, it is difficult to bond with most materials, because the existing technical solutions are not treated on the back of the aluminum foil. The structure of the layer cannot realize self-winding, and the isolation layer needs to be peeled off before use, which not only increases the material cost of the product, but also increases the use cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take an aluminum foil with a thickness of 50 μm as the aluminum foil base material layer 2, and evenly coat a layer of acrylic adhesive with a thickness of 30 μm on one side of the aluminum foil base material layer 2 to form an adhesive layer 3, which is evenly coated on the other side of the aluminum foil base material layer 2. A release agent with a thickness of 20 μm is coated to form a release layer 1, and an aluminum foil tape can be obtained after drying. The weight percentages of the components of the release layer 1 are: 30% of silicone oil, 56.7% of solvent, 8% of auxiliary agent, 5% of resin, and 0.3% of crosslinking agent. The silicone oil includes liquid silicone oil with a methylphenyl group and a high-hydrogen silicone oil, which can significantly improve the bonding force with polyurethane foam; the solvent is toluene; the auxiliary agent is ammonia ; The resin includes methyl MQ resin and phenolic resin; the crosslinking agent is dibenzoyl peroxide.

Embodiment 2

[0021] Take an aluminum foil with a thickness of 50 μm as the aluminum foil base material layer 2, and evenly coat a layer of acrylic adhesive with a thickness of 30 μm on one side of the aluminum foil base material layer 2 to form an adhesive layer 3, which is evenly coated on the other side of the aluminum foil base material layer 2. A release agent with a thickness of 20 μm is coated to form a release layer 1, and an aluminum foil tape can be obtained after drying. The weight percentage of each component of the release layer 1 is: 40% of silicone oil, 51.8% of solvent, 5% of auxiliary agent, 3% of resin, and 0.2% of crosslinking agent. The silicone oil includes liquid silicone oil with a methylphenyl group and a high-hydrogen silicone oil, which can significantly improve the bonding force with polyurethane foam; the solvent is toluene; the auxiliary agent is ammonia ; The resin includes methyl MQ resin and phenolic resin; the crosslinking agent is dibenzoyl peroxide.

Embodiment 3

[0023] Take an aluminum foil with a thickness of 50 μm as the aluminum foil base material layer 2, and evenly coat a layer of acrylic adhesive with a thickness of 30 μm on one side of the aluminum foil base material layer 2 to form an adhesive layer 3, which is evenly coated on the other side of the aluminum foil base material layer 2. A release agent with a thickness of 20 μm is coated to form a release layer 1, and an aluminum foil tape can be obtained after drying. The weight percentages of the components of the release layer 1 are: 50% of silicone oil, 44.9% of solvent, 3% of auxiliary agent, 2% of resin, and 0.1% of crosslinking agent. The silicone oil includes liquid silicone oil and high hydrogen-containing silicone oil with a methyl phenyl group, and the high hydrogen-containing silicone oil can significantly improve the bonding force with the polyurethane foam layer; the solvent is toluene; the auxiliary agent is Ammonia; the resin includes methyl MQ resin and phenoli...

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Abstract

An aluminum tape sequentially comprises a release layer, an aluminum substrate layer and an adhesive layer. The release layer comprises, in weight percent, 30-50% of silicone oil, 40-60% of solvents,3-8% of additives, 2-5% of resin and 0.1-0.3% of cross-linking agents. According to the aluminum tape, the release layer can be effectively adhered with a polyurethane foaming layer, a traditional structure with an isolation layer is changed into a self-winding structure, production cost is saved, the aluminum tape is convenient to use, peeling of the isolation layer is omitted, and the aluminum tape can be directly used after unwinding from a female reel.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to an aluminum foil adhesive tape. Background technique [0002] Aluminum foil is mainly used for fixing and wrapping the pipes and lines of electrical appliances such as refrigerators, freezers, and air conditioners. Usually, in order to save energy, the electrical appliances fill the free area around the pipes with polyurethane foam. It has a good sticking effect, and at the same time, it is required that the release layer on the back of the tape can be well bonded to the polyurethane foam layer (foaming to the surface of the release layer). Because the surface energy of the silicon release layer is low, it is difficult to bond with most materials, because the existing technical solutions are not treated on the back of the aluminum foil. The multi-layer structure cannot realize self-winding, and the isolation layer needs to be peeled off before use, which not only increases the material cost o...

Claims

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Application Information

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IPC IPC(8): C09J7/28C09D5/20C09D183/04C09D183/05C09D161/06
Inventor 谷啸湘
Owner 江苏晶华新材料科技有限公司
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