Preparation method and application of low-cost high-purity polymelamine

A kind of polymelamine, melamine technology

Active Publication Date: 2021-12-07
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a low-cost, high-purity polymelamine preparation method and its application, which solves the problems of complex process, high cost, low yield and purity in the existing polymelamine preparation method. low level problem

Method used

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  • Preparation method and application of low-cost high-purity polymelamine
  • Preparation method and application of low-cost high-purity polymelamine
  • Preparation method and application of low-cost high-purity polymelamine

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Embodiment 1

[0041] 1) Add 0.61g (4.8mmol) melamine (MA) to phytic acid (PA) of 10mL, and use ultrasonic treatment to promote the dissolution of MA in PA until a light yellow transparent solution is formed to obtain solution A, and then Solution A was placed in an ice-water bath for 30 min.

[0042] 2) Dissolve 3.86g (16.9mmol) of ammonium persulfate in 5mL of deionized water to obtain solution B, and then place solution B in an ice-water bath for 30min.

[0043] 3) Under the condition of an ice-water bath, bubble argon into solution A for 10 minutes, then add solution B dropwise to solution A at a rate of 1 drop / second, after solution B is completely added to solution A, put The obtained mixed solution continued to stir for 30 minutes, and the solid product was collected by filtration, and then the solid product was washed with deionized water for several times until the pH value of the washing solution was 7, and finally the product was freeze-dried and stored, and the product was named ...

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Abstract

The invention discloses a preparation method and application of low-cost high-purity polymelamine. According to the method, melamine is taken as a monomer, and polymelamine is prepared by adopting an oxidative polymerization method. According to the method, the production efficiency of the polymelamine is greatly improved, industrial production requirements are met, a large amount of electric energy does not need to be consumed, equipment such as an electrochemical workstation does not need to be used, expensive consumables such as electrodes do not need to be used, a preparation process is simple and convenient, and production cost is low. The obtained polymelamine is high in purity and has a crystal size of 3-10 [mu]m, so the density and mechanical properties of the polymelamine can be improved, the practical application range of the polymelamine in composite electrode materials, electronic devices and sensors is expanded, and the polymelamine has huge potential for achieving industrial production and good market prospects.

Description

technical field [0001] The invention belongs to the technical field of polymer development, and in particular relates to a low-cost, high-purity polymelamine preparation method and its application. Background technique [0002] Polymelamine (PME) is a new type of conductive polymer, which has the advantages of good stability, high nitrogen content, and rich amino groups. Due to the good stability of PME, strong adhesion to the electrode surface, rich nitrogen atoms and amine groups and other advantages, PME is widely used in electrode modification; the electrode modified by PME can be It is used in electrochemical sensors to detect DNA, bisphenol A, drug molecules, gallic acid, multiple isomers of hydroquinone, and neurotransmitters. Therefore, PME is widely used in sensors, photoelectric catalysis, color-changing devices, and battery materials. etc. have broad application prospects. [0003] At present, the reports on polymelamine all adopt the electrochemical polymerizat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/06
CPCC08G73/0644C08G73/065
Inventor 张雪梅高晨杨倩玉邹智挥夏益青盛玉萍赵星宇李新跃鲁越阳龑左由兵李乾隆邹良松
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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