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Amphiphilic nano-silver preparation method based on polyurethane stabilizer

A polyurethane and stabilizer technology, which is applied in the field of preparation of inorganic metal nanomaterials, can solve the problems of polymer design, harsh synthesis conditions, etc., and achieve the effect of cheap raw materials, easy availability of raw materials, and good system stability

Active Publication Date: 2015-04-22
RUNTAI CHEM TAIXING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above polymer design and synthesis conditions are relatively harsh

Method used

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  • Amphiphilic nano-silver preparation method based on polyurethane stabilizer
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  • Amphiphilic nano-silver preparation method based on polyurethane stabilizer

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Embodiment Construction

[0015] In order to better explain the present invention, the present invention will be further explained in detail below in combination with specific embodiments.

[0016] Case 1.

[0017] First, take two parts of polycarbonate polyurethane, 1.12g each, and two parts of toluene, 93.6g each, mix 1.12g polyurethane and 93.6g toluene respectively in a small beaker according to the proportioning ratio, heat it at 65°C and keep stirring, fully Dissolve (A.B. component); also weigh 1.61g of silver nitrate and 4.4g of deionized water, mix silver nitrate and deionized water in a small beaker according to the proportion, heat it at 65°C until it is fully dissolved, and then sonicate for 10 minutes (component C); weigh 0.74g of sodium borohydride and 5.35g of deionized water, mix sodium borohydride and deionized water in a small beaker according to the ratio, and heat it at 65°C until it is fully dissolved. Then sonicate for 10 minutes (component D). Next, move component C into compon...

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Abstract

The invention relates to inorganic metal nano materials preparation, in particular to an amphiphilic nano-silver preparation method based on the reverse miniemulsion technology of a polyurethane stabilizer. The grain size of novel prepared amphiphilic nano-silver can range from 5 nanometers to 100 nanometers, and regulation and control can be achieved through easy control over reaction conditions such as reactant concentration and ultrasonic emulsification power; the amphiphilic nano-silver can be prepared by regulating and controlling the composition of the polyurethane stabilizer and has good dispersity and dispersion stability in a nonpolar solvent system like methylbenzene and polar solvent like water. A polyurethane stabilizer synthetic method is simple, the technology is controllable, the synthesis raw materials are easy to obtain and harmless, and industrial production is easy. The prepared amphiphilic nano-silver can be used as a function nano additive to be applied to various polymer systems, and the polymer materials have the functions of antibacterial property, electrical conductivity, photocatalytic property and the like.

Description

technical field [0001] The invention relates to the preparation of inorganic metal nano-materials, in particular to the preparation of amphiphilic nano-silver based on a polyurethane stabilizer-based reverse miniemulsion technology. Background technique [0002] Nano-silver has excellent electrical conductivity, heat transfer, surface activity, catalytic and antibacterial properties, etc., and has a wide range of applications in the fields of optics, catalysis, microelectronics, biosensing, and antibacterial. In recent years, the preparation technology of nano-silver has developed rapidly, and the preparation methods are various. According to the reaction conditions, they can be divided into chemical reduction method, microemulsion method, reverse micelle method, thermal decomposition method, template method and so on. However, due to the large specific surface area and high specific surface energy of nano-silver particles, oxidation and agglomeration of particles are prone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/24C08G65/48C08F290/06
Inventor 张胜文赵杰刘亚欣陈建峰韩丹宋治霖冯永奇常晨沈晨
Owner RUNTAI CHEM TAIXING CO LTD
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