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Adhesive for magnetic materials

A magnetic material and adhesive technology, applied in the direction of polymer adhesive additives, adhesives, non-polymer adhesive additives, etc., can solve the problems of reducing the performance of magnetic materials, poor elasticity and stretchability, and achieve impact resistance. High strength, excellent aging resistance, and low curing shrinkage

Inactive Publication Date: 2017-05-31
马鞍山起劲磁塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the wide application of magnetic materials, more and more fields need to use magnetic materials, and the requirements for magnetic materials are getting higher and higher. However, the existing magnetic materials have poor elasticity and stretchability, and the magnetic materials used The properties of the adhesive cannot match the performance of the magnetic material very well, and some of them reduce some properties of the magnetic material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An adhesive for magnetic materials, made of the following components in parts by weight: modified polyolefin resin 8, epoxy resin 40, coupling agent 1.0, nano-sericite 8.5, butyl acrylate 2, polydimethyl Silicone 1, lanolin 0.8, polyacrylamide 2.4, citronellol 0.2.

Embodiment 2

[0018] An adhesive for magnetic materials, made of the following components in parts by weight: modified polyolefin resin 10, epoxy resin 50, coupling agent 1.2, nano-sericite 8.7, butyl acrylate 6, polydimethyl Silicone 3, lanolin 1.0, polyacrylamide 2.6, citronellol 0.5.

Embodiment 3

[0020] An adhesive for magnetic materials, made of the following components in parts by weight: modified polyolefin resin 9, epoxy resin 45, coupling agent 1.1, nano-sericite 8.6, butyl acrylate 4, polydimethyl Siloxane 2, lanolin 0.9, polyacrylamide 2.5, citronellol 0.3.

[0021] In the above example:

[0022] The modified polyolefin resin is modified by mixing polyethylene resin and polypropylene resin in a mass ratio of 3:2.

[0023] The preparation method of the modified polyolefin resin is as follows: after uniformly mixing polyethylene resin and polypropylene resin at a mass ratio of 3:2 at 178°C, adding α-terpinene with a mass ratio of 1.25% of the polyethylene resin, In a corona field with a field strength of 400kv / m and an air pressure of 12MPa, stir at a speed of 800r / min for 30min, then adjust the temperature to 120°C, keep it warm for 15min, and then cool to room temperature to obtain the product.

[0024] The coupling agent is a silane coupling agent.

[0025] ...

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Abstract

The invention belongs to the field of magnetic material adhesives and particularly relates to an adhesive for magnetic materials. The adhesive is prepared by modified polyolefin resin, epoxy resin, coupling agent, nano sericite, butyl acrylate, polydimethyl siloxane, lanolin, polyacrylamide and citronellol. The adhesive has the advantages that the adhesive can allow the magnetic materials to adapt to a wide frequency working range, the working environment use temperature of the magnetic materials can reach above 160 DEG C, and the adhesive has extremely high magnetic material adhering strength, has good medium resistance and can meet magnetic material's requirements on high resistivity.

Description

technical field [0001] The invention belongs to the technical field of magnetic material adhesives, in particular to an adhesive for magnetic materials. Background technique [0002] Magnetic materials, commonly referred to as magnetic materials refer to strong magnetic substances, which are ancient and widely used functional materials, and the magnetism of substances has been recognized and applied by people as early as 3000 years ago. For example, natural magnets were used as compass in ancient China . Modern magnetic materials have been widely used in our lives, such as using permanent magnet materials as motors, core materials used in transformers, magneto-optical disks used as memories, magnetic recording floppy disks for computers, etc. According to Dabit Information, magnetic materials are closely related to informatization, automation, mechatronics, national defense, and all aspects of the national economy. It is generally believed that magnetic materials refer to ...

Claims

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Application Information

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IPC IPC(8): C09J4/06C09J11/06C09J11/04C09J11/08
Inventor 周国胜
Owner 马鞍山起劲磁塑科技有限公司
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