Anti-electromagnetic-radiation-resistant anti-cracking concrete and preparation method thereof
An anti-electromagnetic radiation and concrete technology, applied in the field of building materials, can solve problems such as difficulty in dealing with remediation, reduction, and impact on the use of buildings
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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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