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Antistatic epoxy resin composite material and preparation method thereof

An epoxy resin and composite material technology, applied in the field of polymer composite materials, can solve the problems of complex steps and no industrialization prospects, and achieve the effects of good stability, less addition, and simple operation process

Inactive Publication Date: 2014-07-30
HUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese patent with the application number CN200610035870.8 discloses "a preparation method of carbon nanotube / epoxy resin composite material". In the epoxy resin matrix, aromatic amines are used to cure to obtain composite materials, and the obtained materials only have increased strength and modulus; the American magazine "Polymer" (Polymer, 1999, Vol. A carbon nanotube epoxy resin composite material with good antistatic effect, but the preparation method uses the template method, that is, the carbon nanotube array is prepared first, and then compounded with epoxy resin. The steps are complicated, and it is only suitable for experiments. Completed in the room, does not have the prospect of industrialization

Method used

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  • Antistatic epoxy resin composite material and preparation method thereof

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Effect test

Embodiment 1

[0030] An antistatic epoxy resin composite material, according to the parts by mass, the preparation method is as follows:

[0031] 1 Put 0.2 parts of carbon nanotubes into concentrated H 2 SO 4 and HNO 3 The mixed solution (volume ratio: 3:1) was treated for 3 hours under the action of ultrasonic vibration and mechanical stirring, and then washed with a large amount of deionized water until neutral.

[0032] 2 Add the obtained carbon nanotubes into thionyl chloride, heat to 60° C. under ultrasonic vibration, reflux for 24 hours, and then distill off excess thionyl chloride under reduced pressure.

[0033] 3 Add the obtained carbon nanotubes and 10 parts of 1,6-hexamethylenediamine into dimethylformamide, stir the reaction with magnetic force at room temperature for 48 hours, filter, and wash away the unreacted 1,6-hexamethylenediamine with deionized water , Aminated carbon nanotubes were obtained after vacuum drying at 70°C.

[0034] 4 Heat 60 parts of E-44 epoxy resin to...

Embodiment 2

[0036] An antistatic epoxy resin composite material, according to the parts by mass, the preparation method is as follows:

[0037] 1 Put 0.5 parts of carbon nanotubes into concentrated H 2 SO 4 and HNO 3 The mixed solution (volume ratio is 3:1), under the action of ultrasonic vibration and mechanical stirring, treated for 4h, and then washed with a large amount of deionized water until neutral.

[0038] 2. Add the obtained carbon nanotubes into oxalyl chloride, heat to 60°C under ultrasonic vibration, reflux for 24 hours, and then distill off excess oxalyl chloride under reduced pressure.

[0039] 3. Add the obtained carbon nanotubes and 15 parts of ethylenediamine into dimethylformamide, stir the reaction with magnetic force at room temperature for 48 hours, filter, wash off the unreacted ethylenediamine with deionized water, and obtain the amino group after vacuum drying at 70°C. carbon nanotubes.

[0040] 4 Heat 70 parts of E-54 epoxy resin to 100°C, then add 0.1 parts...

Embodiment 3

[0042] An antistatic epoxy resin composite material, according to the parts by mass, the preparation method is as follows:

[0043] 1 Put 2.0 parts of carbon nanotubes into concentrated H 2 SO 4 and HNO 3 The mixed solution (volume ratio: 3:1) was treated with ultrasonic vibration and mechanical stirring for 5 hours, and then washed with a large amount of deionized water until neutral.

[0044] 2 Add the obtained carbon nanotubes into thionyl chloride, heat to 60° C. under ultrasonic vibration, reflux for 24 hours, and then distill off excess thionyl chloride under reduced pressure.

[0045] 3 Add the obtained carbon nanotubes and 20 parts of diethylenetriamine into dimethylformamide, stir the reaction with magnetic force at room temperature for 48 hours, filter, wash off the unreacted diethylenetriamine with deionized water, and vacuum dry at 70°C Aminated carbon nanotubes were obtained.

[0046]4 Heat 80 parts of E-51 epoxy resin to 100°C, then add 1.0 parts of conductiv...

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Abstract

The invention relates to the field of polymer composite materials, and particularly relates to an antistatic epoxy resin composite material and a preparation method thereof. The antistatic epoxy resin composite material comprises the following components by mass: 0.1-3.0 parts of carbon nanotubes; 0.1-1.0 part of conductive mica; 0.1-1.0 part of coupling agents; 60-80 parts of epoxy resin; and 8-30 parts of curing agents. The method of the invention adopts amino-functionalized carbon nanotubes and conductive mica as compounding fillers, disperses the compounding fillers in epoxy resin to prepare the epoxy resin composite material with antistatic performance, and is simple in operation process; the adoption of the compounding fillers can, on one hand, ensure the antistatic performance of the material, and on the other hand, reduce the cost. According to the method, the adding amount of the functional fillers is less, and the product is good in stability, and is applicable to electric appliances, electrons, and the like.

Description

technical field [0001] The invention relates to the field of polymer composite materials, in particular to an antistatic epoxy resin composite material and a preparation method thereof. Background technique [0002] Epoxy resins contain unique epoxy groups, as well as other active groups and polar groups, and have many excellent properties, such as excellent bonding performance, small curing shrinkage, and good stability. There are many types and grades of epoxy resins and types of curing agents, which can be combined and assembled in a variety of ways, so that various epoxy curing systems and cured products with excellent performance and unique characteristics can be obtained, which can adapt to And meet the requirements of various performance and process performance. However, epoxy resin also has its inherent disadvantages, that is, poor impact damage resistance, poor toughness, and low heat resistance. As a polymer material, it has high surface resistivity and volume re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08K13/06C08K9/04C08K9/02C08K7/00C08K3/04C08K3/34C08K5/544C08K5/5435C08K5/5425C08G59/50
Inventor 梁浩解芳刘惠茹强娜
Owner HUIZHOU UNIV
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