Method for adhering vulcanized rubber to metal

A technology of vulcanized rubber and bonding method, used in the field of rubber and metal bonding, can solve the problems of low bonding strength, bonding failure, poor toughness, etc., and achieve the effects of good dynamic fatigue, high brittleness and strong adaptability

Active Publication Date: 2012-10-10
洛阳双瑞橡塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These resin adhesives have good bonding performance at the initial stage of use or under static conditions, but the bonding strength is low under dynamic conditions and high temperature conditions
In addition, after the resin adhesive is cured, its bonding surface is brittle and has poor toughness, and it is easy to crack under dynamic use conditions, resulting in the separation of vulcanized rubber and metal, and bonding failure

Method used

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  • Method for adhering vulcanized rubber to metal
  • Method for adhering vulcanized rubber to metal

Examples

Experimental program
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preparation example Construction

[0020] 1. Preparation of Adhesive Transition Layer

[0021] One method is to use a mechanical device capable of kneading and shearing to process the viscous composition into a thin sheet of 0.8 mm to 1.5 mm for use, and the thin sheet can be directly used as an adhesive transition layer.

[0022] Another method is to dissolve the viscous composition flakes in an organic solvent. The types of organic solvents include toluene, xylene, cyclohexane, gasoline, etc.; stir for (10-15) minutes to accelerate dissolution, and make it used as a transition layer solvent-based adhesives.

[0023] 2. Bonding

[0024] Grind, degrease, and clean the bonding surfaces of vulcanized rubber and metal, and then spray or brush hot vulcanizing adhesives on the bonding surfaces of rubber and metal, such as Chemlok 252X, Xibang 24, Rohm and Haas P- For 11 and 538 double-coated adhesives, after the heat vulcanized adhesive is completely dry, brush or spray the transition layer adhesive on the metal a...

Embodiment 1

[0026] In this embodiment, the components of the vulcanized rubber and the viscous composition are the same, and the specific composition is shown in Attached Table 1, and the metal is stainless steel. The transition layer is a thin sheet of adhesive composition.

[0027] (1) Process the viscous composition into thin slices of 0.8 mm to 1.5 mm by using an open mill, and the thin slices need to be uniform in thickness and smooth in surface.

[0028] (2) Polish the vulcanized rubber bonding surface with 80-mesh sandpaper, then clean the bonding surface with acetone (2 to 3 times), and dry it for use. The metal surface is cleaned with acetone (2 to 3) times after sandblasting, and then dried for use.

[0029] (3) First coat a layer of Chemlok 205 heat vulcanizing adhesive on the treated metal bonding surface, let it dry for (20-30) minutes, and then apply a layer on the metal and vulcanized rubber bonding surface respectively Chemlok 252X adhesive. Then let it stand for (20-30...

Embodiment 2

[0033] In this embodiment, the components of the vulcanized rubber and the viscous composition are similar, and the specific composition is shown in Attached Table 2, and the metal is stainless steel. The transition layer is a solvent-type adhesive prepared by dissolving the viscous composition in an organic solvent.

[0034] (1) Take 10 g of the viscous composition and cut it into granules, the maximum length of which should not exceed 1 cm. It was then put into 20 g of ethyl acetate solvent. In order to speed up the dissolution, it can be stirred for (12-15) minutes and placed for later use.

[0035] (2) The bonding surface treatment of vulcanized rubber and metal can adopt the steps (2) and (3) in Embodiment 1.

[0036] (3) Apply Kemlok 607 heat-vulcanizing adhesive to the bonded surfaces of vulcanized rubber and metal after treatment, apply twice and leave to dry (20-30) minutes before use. Every time it should be painted evenly, without any leakage, the dosage of Kemlo...

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Abstract

The invention relates to the field of adhesion between rubber and metal, in particular to a method for bonding vulcanized rubber to metal. The method comprises the steps of: coarsening and degreasing an adhesion surface between the vulcanized rubber and the metal; paining thermally-vulcanized adhesive on the processed adhesion surface between the metal and the vulcanized rubber; putting a transition layer on the adhesion surface between the metal and the vulcanized rubber in a painting or adhering way; and adhering the vulcanized rubber to the metal at high intensity in the manner of thermal vulcanization. The adhesion method belongs to a thermally-vulcanized adhesion method. Compared with a common cold adhesion method, the adhesion method is high in adhesion intensity, the peel strength of a 180-degree peel sample can reach 13KN / m, and the adhesion surface is good in toughness and better in dynamic fatigability. The method is wide in applicability, and is particularly suitable for the condition that the surface of the rubber has the structure and can not realize the high-intensity adhesion. The method has the advantages of being simple in operation, high in applicability, low in cost, easy to popularize, and suitable for the industrial production.

Description

technical field [0001] The invention relates to the field of rubber and metal bonding. Specifically relates to a bonding method of vulcanized rubber and metal. Background technique [0002] When vulcanized rubber is bonded to metal, due to the formation of a macromolecular cross-linked network inside the rubber after vulcanization, the activity of molecules and segments on the surface of vulcanized rubber decreases, which affects the diffusion and co-existence between the hot vulcanized adhesive molecules and rubber segments at the bonding surface. The cross-linking effect makes it difficult for vulcanized rubber and metal to achieve firm bonding through thermal vulcanization bonding. [0003] At present, cold bonding is mostly used in the industry to bond vulcanized rubber to metal. The cold adhesives used in the market for vulcanized rubber and metal bonding mainly include epoxy resins, acrylic resins, polyurethane resins, phenolic resins, and adhesives that are mixed wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/12C08L7/00C08L9/06C08L9/00C08L11/00C08L9/02C08L27/12
Inventor 褚夫强王勇曾飞
Owner 洛阳双瑞橡塑科技有限公司
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