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Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof

A hot-melt adhesive film and layer compounding technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of poor fusion, low bonding strength of hot-melt adhesive films, etc. Problems, to achieve the effect of convenient bonding, solving the problem of low bonding strength and convenient construction

Inactive Publication Date: 2019-01-15
SHANGHAI BANZAN MACROMOLECULE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a three-layer composite hot-melt adhesive film and its processing technology for bonding metal and polar functional plastics, which solves the problem of fusion between the inner and outer hot-melt adhesive films in the prior art. Poor performance and low bonding strength of hot melt adhesive film

Method used

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  • Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof
  • Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof
  • Three-layer composite hot melt adhesive film for bonding metal and polar functional plastic and processing technique thereof

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] Schematic diagram of the structure of the three-layer composite film figure 1 shown. Specifically, the components and parts by weight of the inner layer glue, the outer layer glue, and the transition glue are as follows.

[0033] Inner glue A1

[0034]

[0035] Inner glue A2

[0036]

[0037] When preparing the inner layer rubber, the raw materials of the inner layer rubber are added to a twin-screw extruder for granulation, and the extrusion temperature is 150-210°C, preferably 170-210°C.

[0038] Outer glue B1

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Abstract

Disclosed are a three-layer composite hot melt adhesive film for bonding a metal and a polar functional plastic and a preparation process therefor, wherein the three-layer composite hot melt adhesivefilm comprises an inner layer adhesive bonded to the metal, an outer layer adhesive bonded to the polar functional plastic, and a transition adhesive connecting the inner layer adhesive and the outerlayer adhesive; the inner layer adhesive, the outer layer adhesive and the transition adhesive with different functionalities are modified and then compounded effectively by means of co-extrusion filmblowing or casting, the three-layer composite hot melt adhesive film is used for bonding polar functional materials with metals such as aluminum, galvanized steel plates and the like, and is high inbonding strength and convenient to construct, and can effectively solve the problems of low bonding strength or large odor, serious environmental pollution and the like of an adhesive used for bondingthe polar functional plastic and the metal at present. The three-layer composite hot melt adhesive film can effectively bond the metal and the polar functional plastic at a relatively low temperatureby means of a laminating machine or a stamping machine device, the bonding is convenient, and the plastic is not damaged.

Description

technical field [0001] The invention belongs to the technical field of hot-melt adhesive films, and in particular relates to a three-layer composite hot-melt adhesive film used for bonding metal and polar functional plastics and a processing technology thereof. Background technique [0002] The application of direct bonding of metals and polar functional plastics is becoming more and more widespread, especially the bonding of metal sheets and plastic sheets, which is more and more used in the electronics industry, machinery industry, construction industry, etc. At present, metals and polar functional plastics are mainly directly bonded by liquid adhesives such as epoxy adhesives and polyurethane adhesives. Liquid glue contains volatile substances, pollutes the environment, and is harmful to operators, and it is inconvenient to process and operate. The hot-melt adhesive film is a solvent-free solid, without volatiles, pollution-free, convenient and fast processing operation,...

Claims

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Application Information

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IPC IPC(8): C09J7/10C09J7/30C09J123/06C09J175/04C09J167/00C09J109/02C09J133/00C09J11/06C09J11/08
CPCC08L2205/035C08L2207/062C08L2207/066C09J11/06C09J11/08C09J109/02C09J123/06C09J133/00C09J167/00C09J175/04C09J2409/00C09J2423/04C09J2433/00C09J2451/00C09J2467/00C09J2475/00C09J7/10C09J7/30C09J2301/208C09J2301/304C09J2301/312C09J2301/408C08L51/06C08L23/0853C08L23/16C08L45/00C08K5/1345C08K5/3475C08L53/025C08L57/02C08L67/00C08L51/003C08L53/02C08L61/14C08L93/04
Inventor 孙晓光黄健储江顺
Owner SHANGHAI BANZAN MACROMOLECULE MATERIAL
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