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Various cohesiveness magnetic pad composition and making method thereof

A technology of adhesiveness and composition, which is applied in the direction of magnetic objects, magnetic materials, building structures, etc., can solve the problems of low vibration damping effect, low efficiency of indoor noise isolation ability and low transmission loss, etc., to reduce components and improve Rigidity, the effect of isolating the noise in the car

Inactive Publication Date: 2002-12-18
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it shows low effect in terms of vibration damping, and the transmission loss of indoor noise insulation ability is low. In order to improve the NVH of automobiles, it is necessary to develop products with better vibration damping performance.

Method used

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  • Various cohesiveness magnetic pad composition and making method thereof
  • Various cohesiveness magnetic pad composition and making method thereof
  • Various cohesiveness magnetic pad composition and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Manufacture the magnetic vibration damping sheet with the composition and content shown in Table 1, extrude it into a certain 2mm thick sheet, and press the molding pattern. Then cool it through the cooler, magnetize it with a magnetizer, and apply hot-melt adhesive on the pattern, or leave it uncoated. Cut it into a size of 200×20mm with a press, and measure the damping coefficient. The damping coefficient is measured according to JASOM306-70 at the temperature of 20 and 40 ℃ respectively, and the results are shown in Table 1:

[0025] Distinguish

[0026] As mentioned above, the magnetic backing board composition of the present invention does not need hot-melt adhesives as in the past, and is bonded to the metal surface to be bonded by pitch and adhesive resin in the magnetic backing board, without the need to apply hot-melt engineering It can achieve the effect of saving adhesive raw material cost and engineering cost, and because of the improvement of vib...

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PUM

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Abstract

PURPOSE: Provided are a magnetic pad composition which shows various adhesion functions according to position to be applied, and a method for producing the same. CONSTITUTION: The magnetic pad composition comprises 18-27 wt% of blown asphalt, 45-65 wt% of bromine-based magnetite, 3-10 wt% of mica, 1-5 wt% of synthetic rubber based on nitrile butadiene rubber, 1-5 wt% of petroleum based adhesive resin, and 0.3-4 wt% of cellulose fiber. The method for producing the composition comprises the steps of (i) incorporating the magnetic damping sheet composition consisting of the components into magnetic pad, and (ii) extruding the pad comprising the composition.

Description

Background technique [0001] The present invention is a composition of various adhesive magnetic backing plates and a manufacturing method thereof, more specifically, it relates to adding ferrite magnet powder and fillers to impart magnetism to oxidized asphalt with excellent adhesive, waterproof and vibration-absorbing properties. , mica powder, nitrile rubber-based synthetic rubber, petroleum-based adhesive resin and cellulose fiber, it can exert a variety of adhesive properties in different applicable positions, and it will no longer be used during extrusion processing. It is necessary to apply the hot-melt adhesive coating project on the magnetic asphalt-based vibration-absorbing material belt in the past, so as to achieve the effect of saving adhesive raw material costs and engineering costs; improve the vibration-damping performance, so as to achieve full play with a small amount of products. Composition and manufacturing method of various adhesive magnetic backing plates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K3/08C08K3/34C09D195/00H01F1/117
CPCC08K3/08C08K3/34C08L1/02C08L9/02C08L95/00C08L2205/16C09D195/00H01F1/117
Inventor 金振洙高浩锡
Owner HYUNDAI MOTOR CO LTD
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