Preparation method of nano copper-polyamide composite

By reducing copper compounds in polyamide monomers, nano-copper-polyamide composite materials are generated, which solves the problems of easy oxidation and uneven dispersion of metal nanomaterials, achieves performance improvement and process simplification, and has good industrial application prospects.

CN103333333AActive Publication Date: 2013-10-02HENAN UNIVERSITY
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Patent Information

Application Number
CN201310295266.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2013-07-15
Publication Date
2013-10-02
Estimated Expiration
2033-07-15

AI Technical Summary

Technical Problem

When preparing polymer-based nanocomposites in the existing technology, metal nanomaterials are easily oxidized and difficult to disperse uniformly, resulting in poor performance and complex processes that are not conducive to industrial application.

Method used

A method for preparing nano-copper-polyamide composite materials is adopted. By adding copper compounds and catalysts to polyamide monomers, a reduction reaction is performed under specific temperature and pressure conditions to generate nano-copper particles, which are protected from oxidation by nitrogen gas. Achieve uniform dispersion and chemical stability of nano-copper.

Benefits of technology

The process is simplified, the agglomeration and oxidation of nano-copper particles are avoided, the uniform dispersion and chemical stability of nano-copper in the polyamide matrix are achieved, and it has good industrial application prospects.

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Abstract

The invention belongs to the technical field of polymer matrix nano composite preparation, and particularly relates to a preparation method of a nano copper-polyamide composite. The method belongs to an in-situ reaction technique, and adopts the main design principle that in a process that a polyamide monomer is polymerized to form a polymer, a copper compound is reduced to nano metal particles of pure copper in a reducing atmosphere of the polyamide monomer or under the action of an additional reducing agent, the nano metal particles are uniformly dispersed in a polyamide base material, and then the nano copper-polyamide composite is prepared by one step. The method can allow nano copper to be dispersed in the base material in a primary particle state, so that aggregation of the nano particles is avoided, and the chemical stability of the nano copper particles is kept; and compared with the prior art, a technology of preparing the polymer nano metal composite is simplified, and the method has better industrial application prospects.
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