Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of polar polymer doped nanoparticles and composite absorbing material containing same

A technology of composite wave-absorbing materials and polar polymers, which is applied in the field of preparation of composite wave-absorbing materials, can solve the problems of complex preparation process, poor matrix compatibility, and high cost, and achieve low preparation cost, mild reaction conditions, and simple operation Effect

Active Publication Date: 2021-11-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current composite absorbing materials often have problems such as complex preparation process, relatively high cost, and poor compatibility with the matrix, making it difficult to expand according to practical applications.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polar polymer doped nanoparticles and composite absorbing material containing same
  • Preparation method of polar polymer doped nanoparticles and composite absorbing material containing same
  • Preparation method of polar polymer doped nanoparticles and composite absorbing material containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Preparation method of polar polymer doped nanoparticles:

[0055] Dissolve 2.7g of ferric chloride hexahydrate, 7.2g of crystalline sodium acetate, and 2g of polyethylene glycol in 70mL of ethylene glycol to obtain brown-red solution 1; mix 0.08g of polar polymer precursor with 8mL of N,N-dimethyl Formamide was configured into clear solution 2; Mix solution 1 and solution 2, put them in a closed container for in-situ solvothermal reduction reaction at 180°C after mixing evenly, separate after the reaction, wash, and vacuum dry at 80°C 12h, polar polymer doped nanoparticles were obtained.

Embodiment 2

[0057] Preparation method of polar polymer doped nanoparticles:

[0058] Dissolve 2.7g of ferric chloride hexahydrate, 7.2g of crystalline sodium acetate, and 2g of polyethylene glycol in 70mL of ethylene glycol to obtain brown-red solution 1; mix 0.23g of polar polymer precursor with 8mL of N,N-dimethyl Acetamide was used to prepare clear solution 2; mix solution 1 and solution 2, and place in a closed container at 180°C for in-situ solvothermal reduction reaction after mixing evenly. After the reaction is completed, separate, wash, and vacuum dry at 80°C for 12 hours , to obtain polar polymer doped nanoparticles.

Embodiment 3

[0060] Preparation method of polar polymer doped nanoparticles:

[0061] Dissolve 2.7g of ferric chloride hexahydrate, 7.2g of crystalline sodium acetate, and 2g of polyethylene glycol in 70mL of ethylene glycol to obtain brown-red solution 1; mix 0.39g of polar polymer precursor with 8mL of N-methyl-2 -Pyrrolidone is configured into a clear solution 2; mix solution 1 and solution 2, and place in a closed container at 180°C for in-situ solvothermal reduction reaction after mixing evenly, separate after the reaction, wash, and vacuum dry at 80°C for 12 hours, Polar polymer doped nanoparticles are obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
concentrationaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a polar polymer doped nano particle, which is made of a polar polymer precursor and an inorganic ferric chloride salt with a mass ratio of (0.08-0.39): 2.7; the polar polymer precursor is composed of Made from potassium 2,5-dihydroxybenzenesulfonate, 2-[bis(4-hydroxyphenyl)methyl]benzoic acid, 2,6-difluorobenzonitrile, and anhydrous potassium carbonate. The polar polymer doping in the present invention can improve the electromagnetic absorption performance of the nano magnetic material; the obtained polar polymer doped nanoparticles can be directly compounded with other functional materials to further improve the electromagnetic wave absorption performance.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wave absorbing materials, in particular to a preparation method of polar polymer doped nanoparticles and composite wave absorbing materials containing the same. Background technique [0002] At present, with the rapid development of communication technology and various electronic products, the seriousness of electromagnetic radiation pollution has become increasingly prominent. Electromagnetic radiation will not only interfere with the normal operation of electrical and electronic equipment, but also cause harm to human health. Electromagnetic wave absorbing materials are widely used in national defense and civilian fields such as radar stealth, communication detection, and radiation protection because of their electromagnetic wave attenuation functions. Therefore, it is of great significance to develop electromagnetic wave absorbing materials with the above performance requirements. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L71/12C08K3/16C08K9/04C08K3/04
CPCC08K3/16C08K9/04C08K2201/011C08K3/042C08L71/123
Inventor 刘宸辰刘书宁徐明珍刘孝波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA