PVC (polyvinyl chloride)/metal bonding hot melt adhesive film and preparation method thereof

A hot-melt adhesive film and metal bonding technology, which is applied in the direction of film/sheet adhesives, adhesives, adhesive types, etc., can solve the problems of large solvent pollution, solvent pollution, and long time consumption, so as to improve the adhesion The effect of strong junction strength, less environmental pollution, and good bonding performance

Active Publication Date: 2014-04-30
GUANGZHOU LUSHAN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is complex, time-consuming, and the solvent pollutes the environment a lot
Publication No. CN101792641A discloses an adhesive for aluminum alloy and PVC film, the adhesive is composed of the following components: 10-30 parts of polyurethane acrylate, 5-40 parts of epoxy acrylate, 10-30 parts 1 part of rubber, 5-15 parts of tackifier, 20-60 parts of reactive diluent, 2-5 parts of glutinous rice, 0.2-1.5 parts of initiator, 0.2-1 part of curing agent, the adhesive is a fast curing Adhesive, which can realize the lamination of aluminum alloy and PVC film within 40s. Although the adhesive shortens the drying solvent procedure, the storage time of the adhesive is short, which brings inconvenience to practical application
[0004] At present, the adhesives used for PVC / metal lamination at home and abroad are mainly solvent-based polyurethane adhesives and reactive liquid adhesives, which have the disadvantages of complex lamination process and large solvent pollution. Therefore, the existing adhesives on the market The agent cannot meet the requirements of PVC / metal rapid compounding

Method used

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  • PVC (polyvinyl chloride)/metal bonding hot melt adhesive film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 20 parts by weight of maleic anhydride grafted polyethylene-vinyl acetate copolymer (Guangzhou Lushan New Material Co., Ltd., OV-1), 70 parts of polyethylene-vinyl acetate copolymer (DuPont, Elvax250), 10 parts of polyolefin elastomer (Dow Chemical, ENGAGE8200), 0.5 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, 1.2 parts of vinyl Trimethoxysilane and 1 part of trimethylolpropane triacrylate are mixed with a high-speed mixer, sealed and placed for 24 hours, so that the initiator, silane, and crosslinking agent are fully absorbed by the polymer matrix. ℃ extrusion granulation, and then cast the rubber granules at 85 ℃ with a casting machine to obtain a hot melt adhesive film with a thickness of 0.15 mm. Investigate the 180° peel strength of the adhesive film bonded to PVC / aluminum, PVC / stainless steel, PVC / galvanized sheet at 150°C, 0.3MPa, and hot pressing for 30s. The specific test results are shown in Table 1.

Embodiment 2

[0036] 15 parts by weight of maleic anhydride modified polyethylene-ethyl acrylate copolymer (Arkema, Lotader8200), 60 parts of polyethylene-butyl acrylate copolymer (Arkema, LORTYL35BA40), 25 parts EPDM copolymer (Dow Chemical, NORDEL IP3720P), 0.7 part of tert-amyl peroxide 2-ethylhexyl carbonate, 0.5 part of vinyltriethoxysilane, 0.1 part of dipentaerythritol hexaacrylate The esters are mixed with a high-speed mixer, sealed and stored for 4 hours, so that the initiator, silane, and crosslinking agent are fully absorbed by the polymer matrix, extruded at 120°C with an extruder to granulate, and then the rubber granules are cast on a casting machine. Cast at 125°C to obtain a hot melt adhesive film with a thickness of 0.15 mm. Investigate the 180° peel strength of the adhesive film bonded to PVC / aluminum, PVC / stainless steel, PVC / galvanized sheet at 150°C, 0.3MPa, and hot pressing for 30s. The specific test results are shown in Table 1.

Embodiment 3

[0038]30 parts by weight of maleic anhydride modified polyethylene-ethyl acrylate copolymer (Arkema, Lotader4210), 40 parts of polyethylene-butyl acrylate copolymer (DuPont, Elvaloy AC34035), 30 parts Amorphous α-olefin copolymer (Degussa, APAO792), 0.1 part of 1,1-di-tert-butylperoxycyclohexane, 0.2 part of vinyltrimethoxysilane, 0.3 part of triallyl The base isocyanurate is mixed with a high-speed mixer, sealed and stored for 12 hours, so that the initiator, silane, and cross-linking agent are fully absorbed by the polymer matrix, and extruded at 100°C with an extruder to granulate, and then the rubber particles Cast at 105°C with a casting machine to obtain a 0.15 mm thick hot melt adhesive film. Investigate the 180° peel strength of the adhesive film bonded to PVC / aluminum, PVC / stainless steel, PVC / galvanized sheet at 150°C, 0.3MPa, and hot pressing for 30s. The specific test results are shown in Table 1.

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Abstract

The invention relates to a PVC (polyvinyl chloride) / metal bonding hot melt adhesive film. The raw material formula of the film comprises the following components in parts by weight: 15-40 parts of maleic anhydride modified polyethylene-ester copolymer, 40-70 parts of polyethylene-ester copolymer, 10-30 parts of polyolefin copolymer, 0.1-1 part of an initiating agent, 0.2-2 parts of silane and 0.1-2 parts of a crosslinking agent. The invention also relates to a preparation method of the hot melt adhesive film, and the preparation method comprises the steps of fully and uniformly mixing the component raw materials according to the formula, granulating through extrusion, and further performing curtain coating to obtain the hot melt adhesive film. Compared with the prior art, the PVC / metal bonding hot melt adhesive film disclosed by the invention can be used for quickly bonding PVC with a metal material, has better adhesive properties, and is green, environmentally friendly and pollution-free.

Description

technical field [0001] The present invention relates to a hot-melt adhesive, in particular to a hot-melt adhesive film used for bonding and lamination between PVC and metal materials such as stainless steel, aluminum, galvanized sheet, etc., and the present invention also relates to the hot-melt adhesive film Preparation. Background technique [0002] PVC is a polymer with good printing properties. Using PVC as raw material, adding various additives, calendering, compounding, and wood grain printing to make wood grain film is a new type of decorative material, which can be compounded with wood, plastic plate, aluminum plate, iron plate and other substrates to make multiple Use Decorative materials, widely used in household appliances, audio surface decoration, interior decoration, interior decoration of aircraft, ships and trains. The wood grain film decoration has beautiful surface, convenient decoration, one-time success, no additional paint, saving labor and materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J123/08C09J151/06C09J123/00C09J123/16C09J11/06
Inventor 伍金奎唐舫成张阳阳汪加胜罗海亚
Owner GUANGZHOU LUSHAN NEW MATERIALS
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