Durable wear-resistant souvenir medal and preparation method thereof

A kind of commemorative medal, durable technology, applied in the field of medal, can solve the problems of wear and smoothing, damage to the medal, affecting the appearance, etc., to achieve the effect of strong wear resistance, high glass transition stability

Pending Publication Date: 2022-04-12
北京华夏理想证章有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of wearing or using the medallion, it is often subject to external friction, which causes some high points in the pattern of the medallion to be worn and smoothed during the long-term collection process, which not only affects the appearance but also causes irreversible damage to the medallion. Therefore, a durable Grinding material protects metal medallions

Method used

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  • Durable wear-resistant souvenir medal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A durable and wear-resistant medal, comprising a medal body and a protective layer arranged on the surface of the medal body; the material of the medal body is metal; the material of the protective layer is modified polyetheretherketone, and the preparation method of the modified polyetheretherketone for:

[0045] S1. Weigh polyether ether ketone and mix it into dimethyl sulfoxide, raise the temperature to 115°C, stir until it is completely dissolved, then add sodium borohydride, stir again, keep stirring and react for 9 hours, after the reaction is completed and cooled to room temperature , filtered out the solid, washed three times with absolute ethanol and purified water successively, and dried under reduced pressure or vacuum to obtain hydroxylated polyether ether ketone; the mass ratio of polyether ether ketone, sodium borohydride and dimethyl sulfoxide is 1:0.18:30;

[0046] S2. Weigh 4-sulfonic acid pyrimidine-2-carboxylic acid and add it to deionized water, mix...

Embodiment 2

[0053] A durable and wear-resistant medal, comprising a medal body and a protective layer arranged on the surface of the medal body; the material of the medal body is metal; the material of the protective layer is modified polyetheretherketone, and the preparation method of the modified polyetheretherketone for:

[0054] S1. Weigh polyether ether ketone and mix it into dimethyl sulfoxide, raise the temperature to 110°C, stir until it is completely dissolved, then add potassium borohydride, stir again, keep stirring and react for 8 hours, after the reaction is completed and cooled to room temperature , filtered out the solid, washed three times with absolute ethanol and purified water successively, and dried under reduced pressure or vacuum to obtain hydroxylated polyether ether ketone; the mass ratio of polyetheretherketone, potassium borohydride and dimethyl sulfoxide is 1:0.15:20;

[0055] S2. Weigh 4-sulfonic acid pyrimidine-2-carboxylic acid and add it to deionized water,...

Embodiment 3

[0062] A durable and wear-resistant medal, comprising a medal body and a protective layer arranged on the surface of the medal body; the material of the medal body is metal; the material of the protective layer is modified polyetheretherketone, and the preparation method of the modified polyetheretherketone for:

[0063] S1. Weigh polyether ether ketone and mix it into dimethyl sulfoxide, raise the temperature to 120°C, stir until it is completely dissolved, then add sodium borohydride, stir again, keep stirring and react for 10 hours, after the reaction is completed and cooled to room temperature , filtered out the solid, washed three times with absolute ethanol and purified water successively, and dried under reduced pressure or vacuum to obtain hydroxylated polyether ether ketone; the mass ratio of polyether ether ketone, sodium borohydride and dimethyl sulfoxide is 1:0.2:40;

[0064] S2. Weigh 4-sulfonic acid pyrimidine-2-carboxylic acid and add it to deionized water, mix...

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Abstract

The invention discloses a durable wear-resistant souvenir medal and a preparation method thereof. The durable wear-resistant souvenir medal comprises a souvenir medal body and a protective layer arranged on the surface of the souvenir medal body, the protective layer is made of modified polyether-ether-ketone, and a preparation method of the modified polyether-ether-ketone comprises the following steps: S1, performing hydroxylation modification on polyether-ether-ketone to obtain hydroxylated polyether-ether-ketone; s2, adsorbing and grafting 4-sulfonic acid pyrimidine-2-carboxylic acid on the imosa dissa, so as to form 4-sulfonic acid pyrimidine-2-carboxylic acid/imosa dissa; and S3, carrying out a binding reaction on the 4-sulfonic acid pyrimidine-2-carboxylic acid/imosa and the hydroxylated polyether-ether-ketone, so as to obtain the modified polyether-ether-ketone. The souvenir medal comprises a souvenir medal body made of a metal material and a souvenir medal protective layer made of a plastic material. The protective layer of the souvenir medal is prepared by modification on the basis of polyether-ether-ketone resin, and the prepared protective layer has higher glass transition stability and stronger wear resistance.

Description

technical field [0001] The invention relates to the field of commemorative badges, in particular to a durable and wear-resistant commemorative badge and a preparation method thereof. Background technique [0002] A commemorative medal is a witness of politics, economy and culture in a historical period, and can reflect the current social status, cultural trends and people's way of thinking. Commemorative medals are often used to commemorate major events in the country's political economy, culture, history, sports, etc., as well as outstanding figures, places of interest, major festivals, etc. Therefore, the collection of commemorative medals has gradually become popular in the world, and has evolved into one of the five pillar industries in the collection industry. one. Commemorative medals are made of metal materials, which are easy to preserve, have good investment prospects, and have great potential for appreciation. The artistic level and craftsmanship of commemorative ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44C3/00C08G65/48C08L71/10
Inventor 陈承琴
Owner 北京华夏理想证章有限公司
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