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High-intensity magnetic rubber

A magnetic rubber, high-strength technology, applied in the field of high-strength magnetic rubber and high-strength rubber, can solve the problems of low magnetic properties and low mechanical properties, and achieve the effect of good magnetic properties and good mechanical properties

Inactive Publication Date: 2013-01-16
昆明云垦橡胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this type of magnetic rubber material still has shortcomings such as low magnetism and low mechanical properties in actual use.

Method used

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  • High-intensity magnetic rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] S1: Mix the rubber evenly, crush it, and mix it evenly with

[0036] S2: Add it to the rubber mixer, mix the rubber at a temperature of 170°C, and grind it into a paste block;

[0037] S3: Pour into the mold, cool and solidify;

[0038] S4: Magnetize under the conditions of a magnetic field strength of 400-600V and a frequency of 50-100Hz, and cut according to the required size.

Embodiment 2

[0040] The difference from Example 1 is that: the temperature in step S2 is 175°C; the magnetic field strength in step S4 is 500V, and the frequency is 75Hz.

Embodiment 3

[0042] The difference from Example 1 is that: the temperature in step S2 is 180°C; the magnetic field strength in step S4 is 600V, and the frequency is 100Hz.

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Abstract

The invention discloses a high-intensity magnetic rubber, belonging to the technical field of macromolecular materials. The magnetic rubber is made from the following raw materials by weight: 20-30 parts of natural rubber, 10-20 parts of chloroprene rubber, 20-30 parts of carboxylated nitrile rubber, 5-10 parts of PVC (Polyvinyl Chloride) resin, 5-10 parts of phenolic resin, 3-8 parts of polyvinyl methyl ether, 10-15 parts of polyethylene, 80-100 parts of magnetic powder, 3-4 parts of iron oxide red, 5-8 parts of acetylene black, 2-4 parts of zinc stearate, 2-4 parts of zinc oxide, 1-3 parts of French chalk, 5-10 parts of polyethylene wax, 4-9 parts of white factice, 3-5 parts of aromatic hydrocarbon oil, 2-4 parts of accelerant, 1-3 parts of antioxidant, 1-2 parts of N,N'-di(2-hydroxypropyl)aniline, 4-8 parts of alkyl besilate, 3-6 parts of dioctyl sebacate, 6-16 parts of sulphur and 3-6 parts of coupling agent. The tensile strength of the magnetic rubber can reach more than 5.5MPa, the elongation at break of the magnetic rubber can reach more than 400%, the Shore hardness of the magnetic rubber can reach more than 60%, and the magnetic induction intensity of the magnetic rubber can reach more than 720Gs.

Description

technical field [0001] The invention provides a high-strength rubber, in particular to a high-strength magnetic rubber, which belongs to the technical field of polymer materials. Background technique [0002] There are three kinds of magnetic materials commonly used in industry, namely ferrite magnets, rare earth magnets and alnico magnets. Their disadvantages are that they are hard and brittle, and their workability is poor. In order to overcome these defects, polymer magnetic materials made by mixing magnetic powder in plastic or rubber have emerged as the times require. [0003] Magnetic rubber is a general term for magnetic elastomer materials, which are formulated from raw rubber, magnetic powder (magnetic filler) and other additives. Magnetism is the basic property of magnetic rubber. Composite magnetic polymer material mainly refers to a composite material that is processed by adding magnetic powder and other additives to plastic or rubber and uniformly mixing them...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L13/00C08L11/00C08L27/06C08L61/06C08L29/10C08L23/06C08K13/02C08K3/22C08K3/04C08K5/098C08K3/34C08K5/18C08K5/42C08K5/11C08K3/06
Inventor 肖伟荣
Owner 昆明云垦橡胶有限公司
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