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Self-healing nano conductive polymer material and preparation method thereof

A polymer material and nano-conductive technology, which is applied in the field of self-repairing nano-conductive polymer materials and its preparation, can solve problems such as unsatisfactory and unusable, and achieve adjustable strength, good economic and social benefits, and good compatibility Effect

Active Publication Date: 2017-07-21
山西天石蓝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It effectively solves the problem that the existing conductive polymer cannot be used after being damaged, and cannot meet the development of the modern electronic industry. It has a huge market application prospect and good economic and social benefits

Method used

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  • Self-healing nano conductive polymer material and preparation method thereof
  • Self-healing nano conductive polymer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 12.5 g of liquid polysulfide rubber with thiol groups and 12.5 g of bisphenol A epoxy resin containing 0.06 gram equivalent per 100 gram of hydroxyl were weighed respectively. 12.5 g of bisphenol A epoxy resin was placed in a three-necked flask and heated to 25°C. Then 12.5 g of liquid polysulfide rubber with thiol groups was slowly added dropwise into the three-necked flask within 20 min. The stirring speed is 250 rpm. After stirring for 15 min, 4 mL of 15% NaOH aqueous solution was slowly dropped into the three-necked flask and stirred for a further 15 min. The above liquid was heated to 120°C and stirring was continued for 1 h. Then 12.5 g of spherical nano-Ag was added into the three-necked flask, while ultrasonically oscillating for 5 min. 2.5 g of diethylenetriamine, 0.85 g of cetyltrimethylammonium bromide and 0.8 g of sodium hydroxide were added to the above mixed solution and stirred for 3 min. The product was moved to a 3 mm thick mold, heated to 60°C, and...

Embodiment 2

[0029] Weigh 15 g of liquid polysulfide rubber with thiol groups and 45 g of bisphenol A epoxy resin containing 0.15 gram equivalent per 100 gram of hydroxyl groups. Put the bisphenol A epoxy resin in a three-necked flask and heat it to 50°C. Then, the liquid polysulfide rubber with thiol groups was slowly added dropwise into the three-necked flask within 20 min. The stirring speed is 150 rpm. After stirring for 25 min, 5 mL of 20% NaOH aqueous solution was slowly dropped into the three-necked flask and stirred for a further 30 min. The above liquid was heated to 140°C and stirring was continued for 2 h. Then 42 g of porous nano-metal cobalt was added into the three-necked flask, while ultrasonically vibrating for 10 min. 6 g of diethylenetriamine, 0.2 g of cetyltrimethylammonium bromide and 0.8 g of sodium hydroxide were added to the above mixed solution and stirred for 10 min. The product was moved to a 4 mm thick mold, heated to 80 °C, and kept for 1.5 h for curing to o...

Embodiment 3

[0031]Weigh 25 g of liquid polysulfide rubber with thiol groups and 20 g of bisphenol A epoxy resin containing 0.20 g equivalent / 100 g of hydroxyl groups. Put the bisphenol A epoxy resin in a three-necked flask and heat it to 60°C. Then 25 g of liquid polysulfide rubber with thiol groups was slowly added dropwise into the three-necked flask within 25 min. The stirring speed is 200 rpm. After stirring for 30 min, 8 mL of 25% NaOH aqueous solution was slowly dropped into the three-necked flask and stirred for a further 35 min. The above liquid was warmed to 150 °C and continued to stir for 3 h. Then 35 g of spherical nano-metal Fe-CO alloy was added into the three-necked flask, while ultrasonically vibrating for 3 min. Add 6 g of hexahydrophthalic anhydride, 1.8 g of cetyltrimethylammonium bromide and 1.2 g of urea into the above mixed solution and stir for 15 min. The product was moved to a mold with a thickness of 8 mm, heated to 100 °C, and kept for 10 h for curing to obt...

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Abstract

The invention discloses a self-repaired conducting polymer nanomaterial and a preparation method thereof, belonging to the technical field of self-repaired conducting polymer preparation and aiming at solving the problems that the existing conducting polymer cannot be further used after being destroyed and the development requirement of modern electronic industry cannot be met and also solving the problems of low conductivity, low self-repairing frequency, complex process and the like of the existing self-repaired polymer material. The preparation method comprises the steps of firstly, carrying out high-temperature graft polymerization reaction on bisphenol A epoxy resin containing a small number of hydroxyl groups and liquid polysulfide rubber with thiol groups; and then, compounding one or more conductive nanoparticles with special shapes and the polymer, and next, adding certain parts of a curing agent and a catalyst under an alkaline condition to cure. The self-repaired conducting polymer nanomaterial disclosed by the invention has the advantages that the structure is novel and unique, the method is simple and safe, industrial production is easily realized and the like. The self-repairing frequency can be up to 46 times, the self-repairing rate is up to 99%, and the volume resistivity can be reduced to 0.06ohm.com at least.

Description

technical field [0001] The invention discloses a self-repairing nano conductive polymer material and a preparation method thereof, belonging to the technical field of polymer nano composite material preparation. Background technique [0002] Conductive polymer materials have excellent physical and chemical properties such as good electrical conductivity, microwave absorption, antistatic, and polymer processability, so they are widely used in electrode materials for rechargeable batteries, energy, optoelectronic devices, information, sensors, electromagnetic Shielding and many other fields are known as one of the most promising functional materials in the 21st century. [0003] However, due to the influence of mechanical, chemical, temperature and other inevitable factors, such materials are prone to microcracks, which affect the service life and application range. Therefore, it is of great significance that conductive polymer materials have self-healing properties to prolon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L81/04C08K3/08C08K7/18C08K5/19C08K3/04C08K7/00
Inventor 周兴宋冠宇沈伟李珅
Owner 山西天石蓝科技有限公司
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