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Ferrocenecarboxylic acid modified unsaturated polyester resin and synthesis method thereof

A technology of ferrocenecarboxylic acid and polyester resin, which is applied in the field of ferrocenecarboxylic acid modified unsaturated polyester resin and its synthesis, to achieve the effects of easy curing and molding control, high thermal strength, good cohesiveness and stability

Inactive Publication Date: 2011-09-28
桂林合立材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the domestic electrical industry and the improvement of the technical level, the requirements for the safety and reliability of components are becoming more and more stringent. Requirements, especially in terms of material fluidity, thermal strength, flame resistance, and dimensional stability, etc., need to be improved, but existing products are difficult to meet their new technical requirements, and their performance needs to be improved through synthesis and modification In order to meet the needs of the development and application of new bonded permanent magnet materials

Method used

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  • Ferrocenecarboxylic acid modified unsaturated polyester resin and synthesis method thereof
  • Ferrocenecarboxylic acid modified unsaturated polyester resin and synthesis method thereof
  • Ferrocenecarboxylic acid modified unsaturated polyester resin and synthesis method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] (1) Add 130 parts by weight of ethylene glycol, 232 parts by weight of fumaric acid, and 1.5 parts by weight of monobutyltin oxide catalyst into the reactor, start stirring and heat up to make the material react at 200 ° C, Control the temperature of the fractionation column not to exceed 102°C;

[0018] (2) When the amount of water distilled from the reaction system is close to or reaches the theoretical water output, cool down to 160°C, add 46 parts by weight of ferrocenecarboxylic acid, feed inert gas, heat up to make the material react at a temperature of 200°C, and Control the temperature of the fractionation column not to exceed 102°C;

[0019] (3) After the acid value of the reaction material is less than 30mgKOH / g, close the inert gas valve, add 2 parts by weight of polymerization inhibitor hydroquinone, slowly open the vacuum system, and make the material continue to react under vacuum. When the acid value of the material is less than After 10mgKOH / g, the reac...

Embodiment 2

[0024] Embodiment 2: In Example 1, replace 130 parts by weight ethylene glycol with 160 parts by weight propylene glycol, the proportioning of all the other raw materials, the technology are unchanged, can obtain another kind of ferrocenecarboxylic acid modified unsaturated polysaccharide involved in the present invention. Ester resin, the structure is:

[0025]

[0026] Where: R=C 3 h 6 , n=20.

Embodiment 3

[0028] In Example 1, 130 parts by weight of ethylene glycol is replaced by 189 parts by weight of butanediol, and the proportioning and process of the remaining raw materials are unchanged, and another ferrocenecarboxylic acid modified unsaturated polyester resin related to the present invention can be obtained , with the structure:

[0029]

[0030] Where: R=C 4 h 8 , n=20.

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Abstract

The invention discloses a ferrocenecarboxylic acid modified unsaturated polyester resin and a synthesis method thereof. The resin is characterized in that the unsaturated polyester resin with molecular chain ends containing ferrocene group structures is prepared by carrying out melt polycondensation on a ferrocenecarboxylic acid monomer, fumaric acid and dihydric alcohol. The resin prepared by the invention has obvious advantages of better flowability, easily controlled solidification and formation, high hot-strength of products, high dimensional accuracy and good performance stability and can be used in a bonder which has higher requirements for performance indexes and is used for bonding a permanent magnet.

Description

technical field [0001] The invention relates to a ferrocenecarboxylic acid modified unsaturated polyester resin and a synthesis method thereof. Background technique [0002] Bonded permanent magnet is an important basic functional material. It is a composite material made by mixing magnetic powder with polymer plastic material. It can be made by injection molding, compression molding, extrusion processing and other methods. Bonded magnets have many incomparable characteristics of sintered magnets: good product consistency, improved dimensional accuracy, diversified product specifications, easy to make magnets with complex shapes, good machinability, and large-scale automated production. Therefore, the production and application development of this new type of permanent magnet material is the fastest among magnet materials, with an average annual growth rate of more than 25%. Bonded magnets are more and more widely used in office automation, computer program automation, audi...

Claims

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Application Information

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IPC IPC(8): C08G63/91C08G63/52C08G63/78
Inventor 吕建韦春王冰白亚飞雷园
Owner 桂林合立材料科技有限公司
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