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Preparation method of surface friction coefficient and viscosity modified iron mine tailing damping material

A technology of surface friction and iron tailings, which is applied in the field of damping material preparation, can solve the problems of low economic value and low utilization efficiency, and achieve the effects of good wear resistance, high hardness and excellent chemical resistance

Active Publication Date: 2017-09-15
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: traditional iron tailings treatment methods such as tailings backfilling, tailings brick making, etc. Low utilization efficiency

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  • Preparation method of surface friction coefficient and viscosity modified iron mine tailing damping material

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] like figure 1 As shown, the modified surface friction coefficient and viscous iron tailings sand damping material preparation method provided by the embodiment of the present invention comprises the following steps:

[0027] S101: Preparation of tailings sand particle damping material whose surface is evenly covered with vinyl: prepare ethanol-water solution, the mixed mass ratio of alcohol-water is 90:10, and add vinyltriethoxysilane to it to prepare a solution with a mass con...

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Abstract

The invention belongs to the technical field of preparation of damping materials, and discloses a preparation method of a surface friction coefficient and viscosity modified iron mine tailing damping material. The method comprises the following steps: carrying out stepped modification by using vinyltriethoxysilane and styrene; uniformly covering the surface of mine tailing with a layer of vinyl groups by using the vinyltriethoxysilane as a preliminary modifier of the surface of the mine tailing, and controlling the content of the vinyltriethoxysilane to be 1% of the mass of an ethanol and mixed water solution comprising ethanol and a water solution according to a mass ratio of 90:10; and initiating polymerization with potassium persulfate by using the styrene as a secondary modifier to produce mine tailing with the surface being uniformly covered with a layer of polymer in order to regulate the damping performance of particles from the surface friction coefficient and the surface structure. The method changes the component structure of the surface of the mine tailing, increases the surface friction coefficient, changes the viscosity, and makes the damping value of the modified damping material 10% higher than that of common granular damping materials.

Description

technical field [0001] The invention belongs to the technical field of damping material preparation, in particular to a method for preparing an iron tailings sand damping material with modified surface friction coefficient and viscosity. Background technique [0002] The comprehensive recovery and utilization of tailings sand has been widely concerned by the whole society; however, the traditional iron tailings treatment methods such as tailings backfilling and tailings brick making have low economic value, such as tailings re-election and tailings making microcrystalline The utilization efficiency of glass and the like is low. The first is the difference in the composition of the tailings sand. Different regions and processes lead to a particularly large difference in the composition of the iron tailings sand, which is the main reason why it cannot be used in large quantities in concrete; secondly, the internal structure of the tailings sand is very irregular, resulting in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0039C04B2103/0068C04B18/12C04B24/026C04B24/42C04B24/04C04B24/10
Inventor 李明俊张安桂徐永文苗明东叶浩
Owner NANCHANG HANGKONG UNIVERSITY
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