Adhesive composition and use thereof

A composition and adhesive technology, applied in the direction of adhesive types, graft polymer adhesives, hydrocarbon copolymer adhesives, etc., can solve problems such as cracking and affecting the service life of products

Inactive Publication Date: 2011-03-30
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, after the accelerated aging test, the bonding strength between the stainless steel decorative layer and the substrate will drop from about 8N / mm to about 4N / mm, and even crack, which affects the service life of the product

Method used

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  • Adhesive composition and use thereof
  • Adhesive composition and use thereof
  • Adhesive composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] After granulating formula 3 and formula 2 respectively, use GEC 3-layer co-extrusion blown film line to co-extrude blown film. The temperature in the processing zone is set at 130-200°C, and the line speed is 12m / min. The formed bi-layer co-extrusion film has a total thickness of 100 μ, and the structure is: 50 μ adhesive film formed from formulation 3-50 μ adhesive film formed from formulation 2.

[0092] Use this double-layer film subsequently as adhesive layer, carry out composite with the stainless steel plate of 0.3mm thick and the aluminum plate of 0.18mm thick with the following method, wherein formula 3 adhesive film one side is bonded with stainless steel plate, formula 2 adhesive film Bonding to aluminum on one side: Preheat the stainless steel plate / double adhesive film / aluminum plate laminate in an oven at 70°C for 5 minutes. Then hot press for 40 seconds under the hot press, the condition is 150 ℃, 3.5kg / cm 2 . Keep it in an oven at 70° C. for 1 minute, t...

Embodiment 2

[0098] After formula 4 was granulated, it was hot-pressed for 10 minutes at 170° C. under a pressure of 3.1 kg / cm to form a thick film of about 180 μ.

[0099] After formulation 2 was pelletized, the film was blown using a GEC 3-layer coextrusion blown film line. The temperature in the processing area is set at 130-200°C, and the line speed is 12m / min. A monolayer film with a thickness of 50 µ was produced.

[0100] The above-mentioned 2 kinds of films are superimposed subsequently to form a composite adhesive layer, and the composite adhesive layer is compounded with the thick stainless steel plate of 0.3mm and the thick aluminum plate of 0.18mm with the following method, wherein one side of the formula 4 adhesive layer is bonded with Bonding of stainless steel plate, one side of the adhesive layer of formula 2 is bonded to aluminum: Preheat the laminate of stainless steel plate / composite adhesive film / aluminum plate in an oven at 70°C for 5 minutes. Then hot press for 40 s...

Embodiment 3

[0106] After formula 5 was granulated, it was hot-pressed for 10 minutes at 170° C. under a pressure of 3.1 kg / cm to form a thick film of about 180 μ.

[0107] After formulation 1 was pelletized, the film was blown using a GEC 3-layer coextrusion blown film line. The temperature in the processing area is set at 130-200°C, and the line speed is 12m / min. A monolayer film with a thickness of 50 µ was produced.

[0108] The above-mentioned 2 kinds of films are superimposed subsequently as composite adhesive layer, and this composite adhesive layer is compounded with the thick stainless steel plate of 0.3mm and the thick aluminum plate of 0.18mm with the following method, wherein formula 5 adhesive layer one side and Bonding of stainless steel plate, one side of the adhesive layer of formula 1 is bonded to aluminum: Preheat the laminate of stainless steel plate / composite adhesive film / aluminum plate in an oven at 70°C for 5 minutes. Then hot press for 40 seconds under the hot pre...

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Abstract

Disclosed is an adhesive composition, which comprises: (a) 5-90 parts by weight of C2-C8 olefin polymer or a mixture of two or more of the olefin polymers; (b) 5-95 parts by weight of acid Graft-modified C2-C8 olefin polymer or a mixture of two or more such graft-modified polymers; and (c) 0-30 parts by weight of ethylene-α-olefin copolymer elastomer; the group The total weight of components (a), (b) and (c) is 100 parts by weight. Also disclosed are composites with stainless steel surfaces prepared using the adhesive composition and the use of the composition in forming stainless steel composites.

Description

technical field [0001] The present invention relates to an adhesive composition suitable for bonding stainless steel articles to other substrates. Background technique [0002] Along with the development of decoration industry such as building, new decoration material emerges in an endless stream. For example, many high-end commercial buildings, office buildings and residential buildings have a metal layer on the surface of the outer wall. The light emitted by the metal layer under the sunlight gives the building industry an elegant and high-grade feeling. [0003] In order to reduce costs and reduce self-weight, the metal layer on the surface of the building industry is usually a composite material, for example, it is a composite material formed by combining the metal layer with plastic, ceramics, glass and other materials through adhesives. Adhesives are required to have a certain resistance to aging in addition to acceptable bond strength. [0004] The assignee is the C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/06C09J123/12C09J123/20C09J123/16C09J123/08C09J123/18C09J151/06C09J123/22C09J153/02C09J153/00C09J125/06B32B15/04B32B15/18B32B7/12
Inventor 任世杰
Owner EI DU PONT DE NEMOURS & CO
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