A kind of ag nanowire/polyurethane flexible transparent conductive composite film and preparation method thereof

A transparent conductive, polyurethane technology, used in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., can solve problems such as poor nano-silver wire composite, achieve broad application prospects, excellent performance Effect

Active Publication Date: 2020-04-14
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because polyurethane is hydrophobic, it is not easy to combine with nano silver wires in the actual research and development process.
Therefore, there is currently no research report on Ag nanowire / polyurethane flexible transparent conductive composite film with polyurethane as the matrix.

Method used

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  • A kind of ag nanowire/polyurethane flexible transparent conductive composite film and preparation method thereof
  • A kind of ag nanowire/polyurethane flexible transparent conductive composite film and preparation method thereof
  • A kind of ag nanowire/polyurethane flexible transparent conductive composite film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A preparation method of Ag nanowire / polyurethane flexible transparent conductive composite film, comprising the following steps:

[0045] Step 1: Dissolve 0.54g of polyvinylpyrrolidone (PVP) and 1.1mg of sodium chloride in an oil bath at 120°C until completely dissolved in 25mL of ethylene glycol (EG) to form a solution A. 0.27g silver nitrate (AgNO 3 ) was stirred at room temperature until completely dissolved in 15 mL of ethylene glycol (EG) to form a B solution. Add solution A drop by drop into solution B, and keep stirring solution B during this period to obtain solution C. Then pour solution C into a 50mL autoclave, put it in a constant temperature blast drying oven at 140°C for 3 hours, take out the solution, add an appropriate amount of ethanol and centrifuge two to three times.

[0046] Step 2: Weigh 0.938g MDI and 3g PEG-2000, and measure 10mL DMF. Pass N 2 Remove the air in the flask and set the temperature of the water bath to 70°C, take out PEG-2000 from...

Embodiment 2

[0050] A preparation method of Ag nanowire / polyurethane flexible transparent conductive composite film, comprising the following steps:

[0051] Step 1: Dissolve 0.8g of polyvinylpyrrolidone (PVP) and 2.2mg of sodium chloride in an oil bath at 120°C until completely dissolved in 25mL of ethylene glycol (EG) to form a solution A. 0.27g silver nitrate (AgNO 3 ) was stirred at room temperature until completely dissolved in 15 mL of ethylene glycol (EG) to form a B solution. Add solution A drop by drop into solution B, and keep stirring solution B during this period to obtain solution C. Then pour the C solution into a 50mL autoclave, put it in a constant temperature blast drying oven at 160°C for 4 hours, take out the solution, add an appropriate amount of ethanol and centrifuge for two to three times.

[0052] Step 2: Weigh 1.126g MDI and 3g PEG-2000, and measure 15mL DMF. Pass N 2 Remove the air in the flask and set the temperature of the water bath to 75°C, take out PEG-20...

Embodiment 3

[0056] A preparation method of Ag nanowire / polyurethane flexible transparent conductive composite film, comprising the following steps:

[0057] Step 1: Dissolve 1.08g of polyvinylpyrrolidone (PVP) and 4.4mg of sodium chloride in an oil bath at 120°C until completely dissolved in 25mL of ethylene glycol (EG) to form a solution A. 0.27g silver nitrate (AgNO 3 ) was stirred at room temperature until completely dissolved in 15 mL of ethylene glycol (EG) to form a B solution. Add solution A drop by drop into solution B, and keep stirring solution B during this period to obtain solution C. Then pour the C solution into a 50ml high-pressure reaction kettle, put it in a constant temperature blast drying oven at 180°C for 5 hours, take out the solution, add an appropriate amount of ethanol and centrifuge it for two to three times.

[0058] Step 2: Weigh 1.3138g MDI and 3g PEG-2000, and measure 20mL DMF. Pass N 2 Remove the air in the flask and set the temperature of the water bath...

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Abstract

The invention discloses an Ag nanowire / polyurethane flexible transparent conductive composite film with biocompatibility, electric conductivity and light transmission performance and a preparation method thereof, comprising the following steps of: preparing silver nanowires by a polyol method; Ag nanowire / polyurethane flexible transparent conductive composite films are synthesized by two-step method. The film prepared by the invention has certain electric conductivity and light transmission performance, and the silver nanorods are uniformly distributed on the surface of the polyurethane substrate; the transmittance of the composite film is about 45%. The average resistance is about 35 M OMEGA. The maximum tensile strength of the composite film is 1.819 MPa, the maximum tensile load is 3.082 N, and the maximum elongation at break is 824.280%. The composite film has excellent properties, and has broad application prospects in the field of photoelectric devices.

Description

technical field [0001] The invention relates to the field of flexible polymer materials, wearable materials and sensing, in particular to the preparation and performance optimization research of Ag nanowire / polyurethane flexible transparent conductive composite film. Background technique [0002] With the rapid development of industries such as electronics and information technology, the demand for polymer materials with conductive functions is becoming more and more urgent. Due to the characteristics of light weight, easy processing and forming, and good dimensional stability, conductive polymer materials have a wide range of applications in the fields of electrochemistry. The commonly used method for conductive polymer composites is to fill the matrix polymer with various conductive fillers. There are many types of conductive fillers, and the commonly used ones can be divided into three types: carbon-based, metal-based, and metal oxides. Among them, the metal system mainl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B13/00
CPCH01B1/22H01B13/00
Inventor 郝凌云张小娟邓翔周智鹏顾月皓张伟严添添沈亚敏董叶
Owner JINLING INST OF TECH
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