Preparation method of functionalized carbon nanotube modified resin-based composite radiation protection material

A carbon nanotube modification and carbon nanotube technology are applied in the field of functionalized carbon nanotube modified resin-based composite radiation protection materials and their preparation, and can solve problems such as carbon nanotubes to be explored.

Inactive Publication Date: 2021-05-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon nanotubes have the characteristics of large specific surface area, high aspect ratio, and light weight, and exhibit unique mechanical, electrical, optoelectronic, electromagnetic, and thermal properties. Th...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Weigh 1 g of multi-walled carbon nanotubes and disperse them in 200 mL of 1 mol L -1 Sulfuric acid solution, ultrasonically dispersed for 1 h, placed in a Co-60 γ-ray radiation field for irradiation treatment, with a dose rate of 1 kGy h -1 , with an irradiation dose of 200 kGy, centrifugal separation, washing twice, and vacuum drying; the irradiated carbon nanotubes were dispersed in 200 mL of acetone, and nano-tungsten oxide, nano-bismuth oxide, nano-sarium oxide, and nano-erbium oxide were pressed After mixing in a ratio of 1:1.5:3:3, take 10 g and add it to the above solution, then add 0.4 g γ-glycidyl etheroxypropyl trimethoxysilane, stir thoroughly for 0.5 h, and ultrasonically disperse for 2 h to obtain radiation protection functional elements / carbon nanotube composite; add the radiation protection functional element / carbon nanotube composite dispersed in acetone to 20 g of E-44 epoxy resin preheated in a 70°C water bath, stir at 70°C for 6 h, Completely volati...

Embodiment 2

[0012] Weigh 1.5 g of single-walled carbon nanotubes and disperse them in 300 mL of 1 mol L -1 Sulfuric acid solution, ultrasonically dispersed for 1 h, placed in a Co-60 γ-ray radiation field for irradiation treatment, with a dose rate of 1 kGy h -1 , with an irradiation dose of 200 kGy, centrifugal separation, washing twice, and vacuum drying; the irradiated carbon nanotubes were dispersed in 200 mL of acetone, and nano-bismuth oxide, nano-cerium oxide, nano-erbium oxide, and nano-gadolinium oxide were pressed After mixing in a ratio of 1:1.5:3:0.5, take 10 g and add it to the above solution, then add 0.4 g γ-glycidyl etheroxypropyl trimethoxysilane, stir thoroughly for 0.5 h, and ultrasonically disperse for 2 h to obtain radiation protection functional elements / carbon nanotube composite; add the radioprotective functional element / carbon nanotube composite dispersed in acetone to 20 g of E-44 epoxy resin preheated in a 70 °C water bath, stir at 70 °C for 6 h, Completely v...

Embodiment 3

[0014] Weigh 1 g of multi-walled carbon nanotubes and disperse them in 200 mL of 2 mol L -1 Sulfuric acid solution, ultrasonically dispersed for 1 h, placed in a Co-60 γ-ray radiation field for irradiation treatment, with a dose rate of 1 kGy h -1 , with an irradiation dose of 100 kGy, centrifugal separation, washing twice, and vacuum drying; the irradiated carbon nanotubes were dispersed in 200 mL of acetone, and nano-tungsten oxide, nano-gadolinium oxide, and nano-samarium oxide were mixed at a ratio of 1:2: After mixing in a ratio of 2, take 10 g and add it to the above solution, then add 0.5 g γ-glycidyl etheroxypropyl trimethoxysilane, stir thoroughly for 0.5 h, and ultrasonically disperse for 1 h to obtain a radiation protection functional element / carbon nanotube composite ; Add the radiation protection functional element / carbon nanotube composite dispersed in acetone to 20 g of E-51 epoxy resin preheated in a water bath at 70 °C, stir at 70 °C for 6 h to completely vola...

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PUM

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Abstract

The invention discloses a functionalized carbon nanotube modified resin-based composite radiation protection material and a preparation method thereof. The material is formed by jointly curing a radiation protection element/carbon nanotube compound, epoxy resin, a curing agent and a coupling agent. The preparation method comprises the following steps: dispersing the carbon nanotube in sulfuric acid, performing gamma-ray irradiation, conducting dispersing in acetone, adding various radiation protection function elements and a coupling agent, and fully conducting stirring and performing ultrasonic dispersion to obtain a radiation protection function element/carbon nanotube compound; and adding the carbon nanotube compound dispersed in acetone into epoxy resin, adding a curing agent, and carrying out vacuum curing to obtain the material. Through the synergistic effect of various radiation protection functional elements and the special structure of the carbon nano tube, the composite material has excellent radiation protection and radiation resistance, has good mechanical properties and low density, can be applied to the fields of nuclear energy, nuclear technology, aerospace engineering and the like, and provides effective radiation protection for workers and instruments and equipment.

Description

technical field [0001] The invention relates to a functionalized carbon nanotube modified resin-based composite radiation protection material and a preparation method thereof, belonging to the technical field of nanocomposite materials and nuclear radiation protection. Background technique [0002] At present, nuclear science and technology have been widely used in many fields such as national defense, energy, industry, and medical treatment, bringing huge economic and social benefits, and at the same time increasing people's opportunities to be exposed to and threatened by various radiations. The issue of radiation safety has become increasingly prominent. The development of radiation protection materials to effectively reduce the harm of radiation to human body, equipment and environment has become an important part of military and civilian radiation protection. The rapid development of nuclear power industry, aerospace engineering and national defense science and technol...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/02C08K3/04
CPCC08K9/02C08K2201/011C08K3/041C08L63/00
Inventor 常树全安恒杨生胜张红旭李峥张海黔
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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