A kind of anti-crack concrete with anti-electromagnetic radiation and preparation method thereof
A technology for preventing electromagnetic radiation and concrete, applied in the field of building materials, can solve problems such as difficulty in dealing with remediation, affecting the use of buildings, and reducing
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Embodiment 1
[0068] 1. Preparation of absorbing material:
[0069] (1) Load 1.5 parts of BaFe 12 o 19 After the halloysite nanotubes and 0.5 parts of methacryloxypropyltrimethoxysilane were stirred at room temperature for 3 h, 10 parts of polypropylene were added and stirred for 3 h to form a mixture 1;
[0070] (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 12 part of polypropylene and stirred for 1.5 h; then added 0.8 part of dielectric loss nanocomposite material B, added dropwise 0.2 part of γ-(2,3-glycidoxy) propyltrimethoxysilane, and stirred for 1 h, Obtain mixture 2;
[0071] (3) Put Mixture 1 and Mixture 2 into a high-speed mixer at the same time, and disperse at 300 r / min for 2 h; then raise the temperature to 110°C, and process at 550 r / min for 20 min, then transfer to In the cold mixing pot, when the temperature drops to 53°C, the material is disch...
Embodiment 2
[0079] 1. Preparation of absorbing material:
[0080] (1) Load 1.6 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 1;
[0081] (2) At room temperature, take 1.2 parts of dielectric loss nanocomposite material A, add 0.5 parts of γ-(2,3-glycidoxy)propyltrimethoxysilane dropwise, stir for 1 h, then add 10 1 part of polypropylene and stirred for 1.5 h; then added 1.0 part of dielectric loss nanocomposite material B, added dropwise 0.2 part of γ-(2,3-glycidoxy) propyltrimethoxysilane, and stirred for 1 h, Obtain mixture 2;
[0082] (3) Put Mixture 1 and Mixture 2 into the high-speed mixer at the same time, and disperse at 330 r / min for 2.5 h; then raise the temperature to 112°C, treat at 480 r / min for 22 minutes, and transfer to the cold In the mixing pot, when the temperature drops to 52°C, discharge the ...
Embodiment 3
[0090] 1. Preparation of absorbing material:
[0091] (1) Add 2 loads of BaFe 12 o 19 After the halloysite nanotubes and 0.6 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 1;
[0092] (2) At room temperature, take 1.3 parts of dielectric loss nanocomposite material A, add 0.6 parts of γ-(2,3-glycidoxy)propyltrimethoxysilane dropwise, stir for 1 h, then add 20 1 part of polypropylene and stirred for 1.5 h; then add 1.2 parts of dielectric loss nanocomposite B, drop 0.2 parts of γ-(2,3-glycidoxy) propyltrimethoxysilane, and stir for 1 h, Obtain mixture 2;
[0093] (3) Put Mixture 1 and Mixture 2 into a high-speed mixer at the same time, and disperse at 350 r / min for 3 h; then raise the temperature to 115°C, treat at 550 r / min for 25 min, and transfer to In the cold mixing pot, when the temperature drops to 55°C, discharge ...
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