Composite material with electromagnetic wave radiation protection function and preparation method thereof

A technology for radiation protection and composite materials, which is applied in the field of composite materials and can solve problems such as the inability to meet the requirements of electromagnetic wave radiation protection.

Active Publication Date: 2018-05-22
FUJIAN JIANGXIA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single material cannot meet the requirements of electromagnetic radiation protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The methacryloxypropyl trimethoxysilane used is commercially available, molecular weight: 248.35, CAS number: 2530-85-0, and its main product specifications: traits: colorless transparent liquid; boiling point: 190 ° C; flash point 198 °F; Refractive index (25 °C): 1.431; Density: 1.045 g / cm3; Content: ≥99%.

[0045] The halloysite nanotube used is a commercially available product, and its main specifications: traits: white powder; composition: SiO 2 : 58.1, Al 2 o 3 : 41.02, TiO 2 : 0.17, Fe 2 o 3 : 0.38, P 2 o 5 : 0.16; tube inner diameter: 15-22 nm; tube outer diameter: 40-70 nm; length: 2 / g; Density: 2.5-2.6g / cm 3 .

[0046] Used γ-(2,3-glycidoxy) propyltrimethoxysilane is commercially available, chemical formula: C 9 h 20 o 5 Si, molecular weight: 236.34, CAS number: 2530-83-8, its main product specifications: properties: colorless transparent liquid; boiling point: 290°C; refractive index (25°C): 1.426-1.428; density: 1.07g / cm3; pH Value: 6.5-7; Conte...

Embodiment 2

[0090] Activation treatment method for halloysite nanotubes, and surface-modified halloysite nanotubes, loaded BaFe 12 o 19 The preparation of halloysite nanotubes, dielectric loss nanocomposite B, modified halloysite nanotubes loaded with nano-copper and dielectric loss nanocomposite A is the same as that described in Example 1. On this basis, a composite material with electromagnetic radiation protection function is prepared:

[0091] (1) Load 1.5 parts of BaFe 12 o 19 After the halloysite nanotubes and 0.4 parts of methacryloxypropyltrimethoxysilane were stirred at room temperature for 3 h, 12 parts of polypropylene were added and stirred for 3 h to form a mixture containing magnetic loss nanocomposites ,stand-by;

[0092] (2) At room temperature, take 0.9 parts of dielectric loss nanocomposite material A, add 0.3 parts of γ-(2,3-glycidoxy)propyltrimethoxysilane dropwise, stir for 1 h, then add 10 part of polypropylene and stirred for 1.5 h; then added 0.8 part of diel...

Embodiment 3

[0096] Activation treatment method for halloysite nanotubes, and surface-modified halloysite nanotubes, loaded BaFe 12 o 19 The preparation of halloysite nanotubes, dielectric loss nanocomposite B, modified halloysite nanotubes loaded with nano-copper and dielectric loss nanocomposite A is the same as in Example 1. On this basis, a composite material with electromagnetic radiation protection function is prepared:

[0097] (1) Load 1.7 parts of BaFe 12 o 19 After the halloysite nanotubes and 0.5 parts of methacryloxypropyltrimethoxysilane were stirred at room temperature for 3 h, 12 parts of polypropylene were added and stirred for 3 h to form a mixture containing magnetic loss nanocomposites ,stand-by;

[0098] (2) At room temperature, take 1.2 parts of dielectric loss nanocomposite material A, add 0.4 parts of γ-(2,3-glycidoxy)propyltrimethoxysilane dropwise, stir for 1 h, then add 13 1 part of polypropylene and stirred for 1.5 h; then add 1.1 parts of dielectric loss na...

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Abstract

The invention discloses a composite material with an electromagnetic wave radiation protection function and a preparation method thereof. The composite material is prepared from 0.9-1.3 parts of a dielectric loss type nanocomposite material A, 1.5-2 parts of BaFe12O19-loading Halloysite banotubes, 0.4-0.6 part of methacryloxy propyl trimethoxyl silane, 0.8-1.2 parts of a dielectric loss type nanocomposite material B, 0.5-0.8 part of gamma-(2,3-epoxypropoxy)propyl trimethoxyl silicane, 22-32 parts of polypropylene and the like. The prepared composite material has the high microwave attenuation characteristic and can be applied to electromagnetic wave protection of various key buildings.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a composite material with electromagnetic wave radiation protection function and a preparation method thereof. Background technique [0002] At present, the hazards of electromagnetic wave radiation from microwave base stations and high-power wireless communication transmitters are becoming more and more serious. The use of building materials with electromagnetic wave absorption function can effectively attenuate electromagnetic waves inside and outside the building. For example, a light-weight and high-toughness absorbing concrete prepared by patent ZL201010266982.0 has a bandwidth of 10 GHz with a reflectivity less than -7 dB in the frequency range of 8 to 18 GHz. An ideal electromagnetic radiation protection material needs to have the characteristics of adjustable electromagnetic parameters, large electromagnetic loss and light specific gravity. A single materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/12C08K3/22C08K9/08C08K9/06C08K9/04C08K3/08C08K7/00C08K3/36
CPCC08K3/08C08K3/22C08K3/36C08K7/00C08K9/04C08K9/06C08K9/08C08K9/12C08K13/06C08K2003/085C08K2003/2227C08K2003/2241C08K2003/2265C08K2003/2293C08K2201/003C08K2201/011C08L2201/08C08L23/12
Inventor 肖三霞
Owner FUJIAN JIANGXIA UNIV
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