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Non-silicon release agent for aluminum foil adhesive tape

A technology of aluminum foil tape and release agent, which is applied in the direction of adhesives, film/sheet adhesives, coatings, etc., can solve the problems of affecting the protection function and accelerating the aging speed of the release agent, and achieves enhanced corrosion resistance. Enhanced tensile strength and improved release properties

Pending Publication Date: 2019-03-29
常州市白鹭电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the aluminum foil tape is bonded, the release layer covers the surface of the aluminum foil tape as a protective film, which may be eroded by water and carbon dioxide in the air, and it is easy to accelerate the aging speed of the release agent, thereby affecting the release layer on the aluminum foil tape. Protection function, there is still room for improvement

Method used

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  • Non-silicon release agent for aluminum foil adhesive tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A non-silicon release agent for aluminum foil tape, comprising the following components in parts by mass:

[0049] 0.75kg stearyl acrylate; 102kg toluene; 21kg cyclohexanone; 4.5kg isocyanate; 0.45kg ethoxylated alkyl ammonium sulfate; 0.45kg carbon fiber; 0.45kg lignin coupling agent.

[0050] In this embodiment, the isocyanate is toluene diisocyanate. In other embodiments, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and the like can also be used as the isocyanate.

[0051] The preparation method of non-silicon release agent for aluminum foil tape is as follows:

[0052] (1) In a 200L stirred tank, under normal temperature conditions, add 4.5kg of isocyanate and stir at a speed of 40r / min;

[0053] (2) Add 0.75 kg of stearyl acrylate, 102 kg of toluene, 21 kg of cyclohexanone, 0.45 kg of ethoxylated alkyl ammonium sulfate, 0.45 kg of carbon fiber, and 0.45 kg of lignin coupling agent while stirring, and stir evenly. Form...

Embodiment 2

[0056] A non-silicon release agent for aluminum foil tape, comprising the following components in parts by mass:

[0057]0.87kg stearyl acrylate; 119kg toluene; 24.5kg cyclohexanone; 5.25kg isocyanate; 0.53kg ethoxylated alkyl ammonium sulfate; 0.53kg carbon fiber; 0.53kg lignin coupling agent.

[0058] In this example, the isocyanate is diphenylmethane diisocyanate.

[0059] The preparation method of non-silicon release agent for aluminum foil tape is as follows:

[0060] (1) In a 200L stirred tank, under normal temperature conditions, add 5.25kg of isocyanate and stir at a speed of 40r / min;

[0061] (2) While stirring, add 0.87kg of stearyl acrylate, 119kg of toluene, 24.5kg of cyclohexanone, 0.53kg of ethoxylated alkyl ammonium sulfate, 0.53kg of carbon fiber, and 0.53kg of lignin coupling agent, and stir evenly , forming a non-silicon release agent for aluminum foil tape;

[0062] (3) Apply the uniformly stirred non-silicon release agent on the back of the aluminum foil...

Embodiment 3

[0064] A non-silicon release agent for aluminum foil tape, comprising the following components in parts by mass:

[0065] Stearyl acrylate 1kg; toluene 136kg; cyclohexanone 28kg; isocyanate 6kg; ethoxylated alkyl ammonium sulfate 0.6kg; carbon fiber 0.6kg; lignin coupling agent 0.6kg.

[0066] In this embodiment, the isocyanate is dicyclohexylmethane diisocyanate.

[0067] The preparation method of non-silicon release agent for aluminum foil tape is as follows:

[0068] (1) In a 200L stirred tank, under normal temperature conditions, add 6kg of isocyanate and stir at a speed of 40r / min;

[0069] (2) While stirring, add 1 kg of stearyl acrylate, 136 kg of toluene, 28 kg of cyclohexanone, 0.6 kg of ethoxylated alkyl ammonium sulfate, 0.6 kg of carbon fiber, and 0.6 kg of lignin coupling agent, and stir evenly to form Aluminum foil tape non-silicon release agent;

[0070] (3) Apply the uniformly stirred non-silicon release agent on the back of the aluminum foil tape with a coa...

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Abstract

The invention relates to the technical field of adhesive tapes, and provides a non-silicon release agent for an aluminum foil adhesive tape against the problem of easy corrosion of non-silicon releaselayers. The non-silicon release agent comprises, by mass, 0.75-1 part of octadecyl acrylate, 102-136 parts of toluene, 21-28 parts of cyclohexanone, 4.5-6 parts of isocyanate, 0.45-0.6 part of ammonium alcohol ether sulphate, 0.45-0.6 part of carbon fibers and 0.45-0.6 part of a coupling agent. The addition of the carbon fibers is helpful for enhancing the corrosion resistance of the non-siliconrelease agent, so the non-silicon release layer is not prone to be corroded, thereby the protection of the aluminum foil adhesive tape by the non-silicon release layer is benefited; the addition of the ammonium alcohol ether sulphate is helpful for enhancing the antistatic property of the non-silicon release layer; and active hydrogen of an amino group on the ammonium alcohol ether sulphate can beeasily reacted with isocyanate to make molecular chains intertwined, so the formation of a crosslinked network between molecules is benefited to enhance the strength of the non-silicon release agent,thereby good protection of the aluminum foil adhesive tape by the non-silicon release layer is benefited.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a non-silicon release agent for aluminum foil adhesive tapes. Background technique [0002] Aluminum foil tape is the main raw and auxiliary material for refrigerator and freezer manufacturers, and it is also a must-buy raw material for thermal insulation material distribution departments. It is widely used in refrigerators and air conditioners. , automobiles, petrochemicals, bridges, hotels, electronics and other industries. [0003] In order to facilitate the separation of the aluminum foil tape, the back of the aluminum foil tape is usually covered with a release layer, which acts as a release from the pressure-sensitive adhesive. After the aluminum foil tape is bonded, the release layer covers the surface of the aluminum foil tape as a protective film, which may be eroded by water and carbon dioxide in the air, and it is easy to accelerate the aging speed of the relea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D5/08C09D5/24C09D7/65C09D7/61C09D7/63C09J7/40C09J7/28
CPCC09D4/00C09D4/06C09D5/08C09D5/24C09D7/61C09D7/63C09D7/65C09J7/28C09J7/401C09J2400/163C09J2433/005
Inventor 周国忠
Owner 常州市白鹭电器有限公司
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