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Double-mirror hot-melt adhesive film, preparation method, application

A technology of hot-melt adhesive film and adhesive film, applied in the field of nano-materials, can solve the problems of increasing material costs, difficult recycling of composite release films and protective films, and white pollution of the environment

Active Publication Date: 2021-01-12
CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, when the traditional hot melt adhesive film is used in the lighting field, it is necessary to apply a mirror film on the surface of the film, such as a composite release film or a protective film, which not only increases the cost of materials, but also the composite release film and protective film after use are very expensive. Difficult to recycle and cause white pollution to the environment

Method used

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  • Double-mirror hot-melt adhesive film, preparation method, application
  • Double-mirror hot-melt adhesive film, preparation method, application

Examples

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preparation example Construction

[0039] further, see figure 2 , the invention provides a method for preparing microcapsules, comprising: dissolving catalyst and aniline in an organic solvent to form solution A; dissolving concentrated sulfuric acid in an aqueous emulsifier solution to form solution B; moving organic solution A into solution B In the process, a clear organic-water interface layer is formed; heating causes the organic-water interface layer to react until the water phase turns yellow completely and produces granular solids; the reaction is stopped, and the lower layer mixture is centrifuged; the separated solid product is passed through Washing with water and absolute ethanol; vacuum drying to obtain microcapsules.

[0040] further, see figure 1 , the invention provides a method for preparing a hot-melt adhesive film, comprising: blending and melting microcapsules and base film raw materials, peroxides, crosslinking monomers, and silane coupling agents through a mold to form an adhesive film m...

Embodiment 1

[0050] (1) Preparation of microcapsules

[0051] Dissolve 5 parts of catalyst and 10 parts of aniline in a solvent to form an oil phase; slowly add the oil phase to the upper layer of an aqueous solution containing 30 parts of concentrated sulfuric acid and 0.5 parts of an emulsifier to form a clear organic-water phase interface, and control the reaction temperature at Around 80°C. After the solution at the interface turns yellow and gradually diffuses into the water phase, the water phase turns yellow completely, and granular solids are produced. After the reaction was stopped, the mixture in the lower layer was centrifuged, and the collected solid product was washed with water and absolute ethanol, and dried in vacuum at 70°C to obtain microcapsules containing the catalyst.

[0052] (2) Preparation of hot melt adhesive film

[0053] Blend and add 6 parts of microcapsules, 86.2 parts of base film raw materials, 0.5 parts of peroxide, 5 parts of crosslinking monomer, and 0.4...

Embodiment 2

[0055] (1) Preparation of microcapsules

[0056] Dissolve 20 parts of catalyst and 20 parts of aniline in a solvent to form an oil phase; slowly add the oil phase to the upper layer of an aqueous solution containing 50 parts of concentrated sulfuric acid and 1 part of emulsifier to form a clear organic-water phase interface, and control the reaction temperature at Around 80°C. After the solution at the interface turns yellow and gradually diffuses into the water phase, the water phase turns yellow completely, and granular solids are produced. After the reaction was stopped, the mixture in the lower layer was centrifuged, and the collected solid product was washed with water and absolute ethanol, and dried in vacuum at 70°C to obtain microcapsules containing the catalyst.

[0057] (2) Preparation of hot melt adhesive film

[0058] Blend and add 6 parts of microcapsules, 86.2 parts of base film raw materials, 0.5 parts of peroxide, 5 parts of crosslinking monomer, and 0.4 part...

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Abstract

The invention belongs to the technical field of nanometer materials, and particularly relates to a nanoscale microcapsule, a double-mirror-surface hot melt adhesive film, and a preparation method andapplication. The hot melt adhesive film comprises a base film and a plurality of microcapsules distributed in the base film, the microcapsules are adapted to release a catalyst upon disruption to cause micro-crosslinking of the surface of the base membrane, the nano-scale dispersion distribution is performed on the base film, so that the viscosity of the upper surface and the lower surface of theadhesive film is reduced, the double-mirror-surface adhesive film is prepared through a mirror surface steel roller and a mirror surface rubber roller, and the product is directly rolled without reverse adhesion. Due to the fact that the upper surface and the lower surface of the adhesive film are both in the mirror surface state, flaws such as crystal points, impurity points and spots on the surface of the adhesive film can be easily observed before lamination, the assembly yield risk caused by the flaws on the surface of the adhesive film is reduced, a release film does not need to be used,and the material cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a double-mirror surface hot-melt adhesive film, a preparation method and an application. Background technique [0002] With the development of outdoor advertising and landscape lighting, more and more flexible outdoor LED advertising screens and lighting components are used in public places, such as street lights, courtyards and high-rise buildings. In order to prevent the adhesive film from sticking to the pressure roller, the traditional hot-melt adhesive film is generally embossed with a concave roller. There are printed patterns on both sides of the adhesive film, so it is difficult to find defects on the surface of the adhesive film. For the field of outdoor advertising, outdoor LED advertising screens are generally made of many LED lamp beads embedded in a flexible steel strip, and the chip controls the display effect of each different lamp bead. It...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/00C09J11/08C09J4/06B01J13/16C08G73/02G09F9/33H01L31/048
CPCB01J13/16C08G73/0266C09J4/06C09J11/00C09J11/08G09F9/33H01L31/0481Y02E10/50Y02P20/54
Inventor 熊唯诚范国威朱宙峰周乐茹正伟
Owner CHANGZHOU BAIJIA NIANDAI FILM TECH CO LTD