A kind of poly-o-aminothiophenol-nanometer metal composite particle and its preparation method

A technology of o-aminothiophenol and nano-metal, which is applied in the direction of coating and the like to achieve the effects of expanding the scope of application, preventing agglomeration, and having a simple preparation method.
CN104209536BInactive Publication Date: 2016-06-15ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2016-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a poly-o-aminothiophenol-nanometer metal composite particle and a preparation method thereof. It has a core-shell self-assembled structure. Its preparation method is that the metal salt is under the protection of a dispersion-stabilizer, and sodium borohydride is used as a reducing agent to prepare nano-metal particles; the surface layer of the nano-metal particles is stably combined with the sulfhydryl group on the o-aminothiophenol; Ammonium is used as an oxidant to initiate the solution polymerization of o-aminothiophenol to obtain poly-o-aminothiophenol-nano metal composite particles. The core of the composite particle is nano-metal, and the outer shell is mercapto-grafted polyaniline. The sterilization of nano-metal and the biotoxicity of polyaniline have a synergistic effect. At the same time, polyaniline is insoluble in water, which improves the environmental safety of antibacterial powder. The invention has the advantages of large specific surface, wide antibacterial range, long-lasting bactericidal effect, high conductivity, stability, and long service life, and can be used as an anti-corrosion and anti-fouling additive, especially suitable for marine anti-corrosion and anti-fouling coatings.
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Description

technical field

[0001] The invention relates to a poly-o-aminothiophenol-nanometer metal composite particle and a preparation method. Background technique

[0002] Common antifouling coatings are mainly composed of resins, antifouling agents, auxiliary materials, fillers and solvents. After forming a coating film on the metal surface, it is an antifouling coating. As the mainstay of antifouling coatings, in the 1970s, organic tin (TBT) acrylic resin self-polishing composites had an antifouling validity period of more than 5 years and the characteristics of keeping the bottom of the ship smooth. However, organotin coatings have caused significant damage to the marine ecological environment and can endanger human health through the food chain. Finding an environment-friendly marine antifouling coating has become a technical problem to be solved urgently.

[0003] In recent years, it has been reported that marine corrosion originates from microorganisms, and the metabolites o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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