Preparation method for PET-substrate rubber pressure-sensitive adhesive tape and adhesive tape

A pressure-sensitive tape, rubber-type technology, applied in adhesives, film/sheet adhesives, coatings, etc., to achieve the effects of avoiding pollution, improving adhesion, long-term fixing or protecting objects

Active Publication Date: 2013-09-25
广东康得新窗膜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, if a method can be found to maintain the long-term polarity of the adhesion contact surface between the PET substrate and the rubber-type pressure-sensitive adhesive, thereby ensuring the long-term adhesion of the rubber-type pressure-sensitive adhesive on the PET substrate, and finally making the adhesive tape It has good peeling performance on the surface of the adhered article, which can solve the technical problems existing in the existing PET-based rubber-type pressure-sensitive tape

Method used

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  • Preparation method for PET-substrate rubber pressure-sensitive adhesive tape and adhesive tape
  • Preparation method for PET-substrate rubber pressure-sensitive adhesive tape and adhesive tape
  • Preparation method for PET-substrate rubber pressure-sensitive adhesive tape and adhesive tape

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preparation example Construction

[0042] The embodiment of the present invention discloses a method for preparing a PET-based rubber-type pressure-sensitive adhesive tape, the operation steps of which include:

[0043] a), prepare primer;

[0044] b), coating a primer on at least one surface of the PET substrate layer to form a primer layer;

[0045] c) Coating rubber-type pressure-sensitive adhesive on the primer layer;

[0046] d) Obtain a PET-based rubber-type pressure-sensitive adhesive tape;

[0047] Wherein, the primer is a graft copolymer, and the graft copolymer includes a rubber main chain and a polar graft polymerized side chain.

[0048] Preferably, step a) includes:

[0049] a10), dissolving the rubber in a solvent to obtain a rubber mother liquor;

[0050] a20), in the reaction device, mix the rubber mother liquor obtained in the above step a10) with the monomer, and carry out the graft copolymerization reaction under the action of the initiator;

[0051] a30), after the graft copolymerizatio...

Embodiment 1

[0069] See figure 1 , figure 2 and image 3 Shown, a kind of preparation method of PET substrate rubber type pressure-sensitive adhesive tape, its operation step comprises:

[0070] a), prepare primer, specifically include:

[0071] a10) Add 400g of toluene and 100g of natural rubber into a 1L four-necked reaction flask equipped with a stirring device, a condenser, a thermometer, a dropping funnel, and nitrogen gas, and stir evenly. After the rubber is completely dissolved, the rubber mother liquor is obtained;

[0072]a20), in the reaction bottle, add 0.057g of acrylic acid, 2.4g of butyl acrylate, 5.74g of methyl methacrylate (three mixed monomers) and 0.03g of benzoyl peroxide to the rubber mother liquor in the above step a10). (initiator), stirred and heated to 78°C for 2 hours, then added dropwise 0.14g of acrylic acid, 5.86g of butyl acrylate, 14g of methyl methacrylate (three kinds of mixed monomers) and 0.07g of benzoyl peroxide (initiator Add the mixture of agent...

Embodiment 2

[0082] See also figure 1 , figure 2 and image 3 Shown, a kind of preparation method of PET substrate rubber type pressure-sensitive adhesive tape, its operation step comprises:

[0083] a), prepare primer, specifically include:

[0084] a10) Add 400g of toluene and 100g of natural rubber into a 1L four-necked reaction flask equipped with a stirring device, a condenser, a thermometer, a dropping funnel, and nitrogen gas, and stir evenly. After the rubber is completely dissolved, the rubber mother liquor is obtained;

[0085] a20), in the reaction bottle, add 0.11g of acrylic acid, 7.9g of methyl methacrylate (two mixed monomers) and 0.03g of benzoyl peroxide (initiator) to the rubber mother liquor in the above step a10), and stir Raise the temperature to 80°C for 2 hours, then add dropwise a mixture of 0.2g of acrylic acid, 19.7g of methyl methacrylate (two mixed monomers) and 0.07g of benzoyl peroxide (initiator), and complete the dropwise addition within 2 hours , under...

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Abstract

The invention discloses a preparation method for a PET-substrate rubber pressure-sensitive adhesive tape and an adhesive tape. The preparation method comprises the following operation steps: a) preparing a primer; b) coating the primer on at least one surface of a PET-substrate layer to form a primer layer; and c) coating a rubber pressure-sensitive adhesive on the primer layer, thereby obtaining the PET-substrate rubber pressure-sensitive adhesive tape, wherein the primer is a graft copolymer which comprises a rubber main chain and graft polymerization side chains with polarity. According to the invention, adhesion strength of a rubber pressure-sensitive adhesive on a PET substrate is effectively improved; while permanent fixing or protection of an article is realized, good stippability of the adhesive tape on the surface of the adhered article is obtained, so it is ensured that the rubber pressure-sensitive adhesive is not left on the surface of the article, thereby avoiding pollution to the fixed or protected article.

Description

technical field [0001] The invention belongs to the field of adhesive tape preparation, and in particular relates to a method for preparing a PET-based rubber-type pressure-sensitive adhesive tape and the adhesive tape. Background technique [0002] The tape is mainly composed of a substrate and a layer of adhesive coated on one or both surfaces of the substrate. By forming a bond between the adhesive molecules on the substrate and the surface molecules of the article, the tape is only adhered to on the surface of the item. Divided by function, tapes can be divided into high temperature tapes, pressure sensitive tapes, insulating tapes, special tapes, die-cut tapes, etc. Among them, the pressure-sensitive tape refers to the use of pressure-sensitive adhesive as the adhesive, commonly known as self-adhesive tape, which can be easily adhered when using a small pressure, can achieve an adhesive effect in a short time, and is not easy to remain on the adhered item after peeling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C08J7/04C09D151/04C08F253/00C08F279/02C08J3/24
Inventor 夏有贵吴智华
Owner 广东康得新窗膜有限公司
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