A kind of nano-metal composite and preparation method thereof

A nano-metal and composite technology, which is applied in metal material coating process, liquid chemical plating, coating and other directions, can solve the problems of ineffective recycling and poor activity of nano-metal, so as to solve the problem of poor activity and environmental problems. The effect of low pollution and simple preparation process

Active Publication Date: 2019-12-17
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a nano-metal composite and its preparation method, aiming at solving the problem that the nano-metal needs to be coated with a surfactant on its surface when it is used in the prior art to cause its activity to be low. Good, and the problem that nano-metals cannot be effectively recycled

Method used

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  • A kind of nano-metal composite and preparation method thereof
  • A kind of nano-metal composite and preparation method thereof
  • A kind of nano-metal composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Clean the silicone rubber sponge square with a size of 1cm×1cm×1cm with ethanol in an ultrasonic cleaner for 10 minutes, and then put it in a blast oven at 45°C to dry;

[0048] Put the dried silicone rubber sponge square into a plasma cleaning machine for 10 minutes, and then place it in a 10% by volume vinyltriethoxysilane solution. After 60 minutes of treatment, take out the solid and rinse it with deionized water Clean, obtain the silicone rubber sponge of surface silane coupling agent modification;

[0049] Put the silicone rubber sponge modified by the surface silane coupling agent in the acrylate solution with a volume percentage of 10%, add the initiator KPS at the same time, and react at 60°C for 120 minutes to obtain the silicone rubber sponge after free radical polymerization;

[0050] Place the silicone rubber sponge after free radical polymerization in P with an ion concentration of 0.001-0.01mol / L d Cl 4 2- After ion exchange in the solution for 30 minu...

Embodiment 2

[0054] Clean the silicone rubber sponge square with a size of 1cm×1cm×1cm with ethanol in an ultrasonic cleaner for 20 minutes, and then put it in a blast oven at 45°C to dry;

[0055] Put the dried silicone rubber sponge square into a plasma cleaning machine for 20 minutes, and then place it in a 5% vinyltrimethoxysilane solution by volume. After 120 minutes of reaction, take out the solid and rinse it with deionized water , to obtain a silicone rubber sponge modified by a surface silane coupling agent;

[0056] Put the silicone rubber sponge modified by the surface silane coupling agent in the acrylamide solution with a volume percentage of 10%, and add the initiator KPS at the same time, and react at 100°C for 180 minutes to obtain the silicone rubber sponge after free radical polymerization;

[0057] Place the silicone rubber sponge after free radical polymerization in P with an ion concentration of 0.001-0.01mol / L d Cl 4 2- After performing ion exchange in the solution...

Embodiment 3

[0061] Clean the silicone rubber sponge square with a size of 1cm×1cm×1cm with ethanol in an ultrasonic cleaner for 1 minute, and then put it in a blast oven at 45°C to dry;

[0062] Put the dried silicone rubber sponge square into a plasma cleaning machine for 1 minute, and then place it in a solution of 1% by volume γ-aminopropyltrimethoxysilane. After 30 minutes of reaction, take out the solid and use it Rinse with deionized water to obtain a silicone rubber sponge modified by a surface silane coupling agent;

[0063] Place the silicone rubber sponge modified by the surface silane coupling agent in a 10% butadiene solution by volume, add the initiator KPS at the same time, react at 50°C for 30 minutes, and obtain the silicone rubber sponge after free radical polymerization;

[0064] Place the silicone rubber sponge after free radical polymerization in P with an ion concentration of 0.001-0.01mol / L d Cl 4 2- After ion exchange in the solution for 10 minutes, take it out a...

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Abstract

The invention discloses a nanometer metal composite and a preparation method thereof, wherein the method comprises the steps of: providing a substrate, the surface of the substrate is connected with a hydrophilic group; using a silane coupling agent to carry out surface Modified to obtain a substrate modified by a surface silane coupling agent; the substrate modified by a surface silane coupling agent, an initiator and a vinyl-containing polymer monomer are mixed to make the vinyl-containing polymer monomer A polymerization reaction occurs and a polymer brush grows on the substrate modified by the surface silane coupling agent to obtain a substrate after free radical polymerization; the substrate after ion exchange is replaced by P d Cl 4 2‑ , and then placed in the metal plating solution for metal electroless deposition, that is, to obtain nano-metal composites. The invention solves the problems in the prior art that the surface of the nano metal needs to be coated with a surfactant during actual use, resulting in low reactivity and the problem that the nano metal cannot be effectively recycled.

Description

technical field [0001] The invention relates to the field of nanomaterials, in particular to a nanometer metal composite and a preparation method thereof. Background technique [0002] Nanometals are metal materials with at least one dimension in the nanoscale or as basic units in three-dimensional space. They have many physical and chemical properties that ordinary materials do not have. For example, black gold can specifically absorb sunlight. Gold and nano-silver have significant Raman-enhancing properties. These characteristics make nano-metals have broad application prospects in light, electricity, magnetism, catalysts, sensing, and biomedicine. In the past, nano-metals were mostly used directly in the form of colloidal solutions. When using nano-metals in this way, the recovery of nano-metals is difficult and cannot be reused. Moreover, because the size of nano-metals is too small, they are easy to agglomerate, so they need to be coated on the surface of nano-metals. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/20C08J9/40C08F283/12C08F220/10C08F220/56C08F236/06
CPCC08F283/12C08J9/40C08J9/405C08J2383/04C23C18/2066C08F220/10C08F220/56C08F236/06
Inventor 周学昌杨梦嫣
Owner SHENZHEN UNIV
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