Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material

A technology of potassium magnesium phosphate cement and bonding performance, which is applied in the manufacture of fiber-reinforced potassium magnesium phosphate cement composite materials, and in the field of improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials, and can solve problems such as fiber bundle breakage and achieve Fast curing, high bond strength, and strong permeability

Inactive Publication Date: 2014-03-26
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the sand adhered to the surface is stressed, it is easy to peel off from the surface of the fiber bundle, and the roving on the surface layer is peeled off together, causing the fiber bundle to break and cannot continue to carry the load.
[0007] Therefore, scientific and technical personnel in universities, related

Method used

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  • Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material
  • Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material
  • Method of improving bonding performance of fiber bundle and potassium magnesium phosphate cement-based material

Examples

Experimental program
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Example Embodiment

[0032] Example 1: Take 2 parts by mass of sodium fluorosilicate, 10 parts by mass of dead burnt magnesia powder and 100 parts by mass of sodium silicate aqueous solution (modulus 3.0, Baume degree 50.3), using a planetary liquid mixer Stir the mixed solution at a speed of 60-90r / min for 3-5 minutes to obtain a new type of fiber infiltrant with a controllable curing speed. Use the new fiber infiltration agent to evenly brush the surface of the glass fiber bundle and fully infiltrate the glass fiber bundle. After the glass fiber bundle is treated for 3 days (cured), use the DL-5000 electronic tensile testing machine to perform the axial tensile test, and at the same time The processed glass fiber bundles and the glass fiber bundles treated with epoxy resin sizing agent are subjected to axial tensile test; MPC-based material slurry is prepared according to a certain ratio, and it is casted and compacted. Among them, glass fibers treated in different ways are supplemented The fiber...

Example Embodiment

[0035] Example 2: Take 8-10 parts by mass of sodium fluorosilicate, 15-20 parts by mass of dead burnt magnesia powder and 100 parts by mass of sodium silicate aqueous solution (modulus is 2.6~2.8, Baume degree is 38.4~ 48.3). Use a planetary liquid mixer to stir the mixed solution at a speed of 60-90 r / min for 2 to 3 minutes to obtain a new type of fiber sizing agent with a controllable curing speed. The surface of the carbon fiber bundle is evenly painted with a new type of fiber infiltration agent to fully infiltrate the carbon fiber bundle. After the carbon fiber bundle has been treated for 3 days (cured), use the DL-5000 electronic tensile testing machine to perform the axial tensile test, and at the same time, the untreated carbon fiber And the carbon fiber bundles treated with epoxy resin sizing agent are subjected to axial tensile test; MPC-based material slurry is prepared according to a certain proportion, and it is cast and compacted. Among them, carbon fiber bundles t...

Example Embodiment

[0038] Example 3: Take 8-10 parts by mass of sodium fluorosilicate, 15-20 parts by mass of dead burnt magnesia powder and 100 parts by mass of sodium silicate aqueous solution (modulus is 2.6~2.8, Baume degree is 38.4~ 48.3). Use a planetary liquid mixer to stir the mixed solution at a speed of 60-90 r / min for 2 to 3 minutes to obtain a new type of fiber sizing agent with a controllable curing speed. The surface of the basalt fiber bundle is evenly coated with the new fiber infiltration agent to fully infiltrate the basalt fiber bundle. After the basalt fiber bundle has been treated for 3 days (cured), use the DL-5000 electronic tensile testing machine to perform the axial tensile test, and at the same time The treated basalt fiber bundles and the basalt fiber bundles treated with epoxy resin infiltration agent are subjected to axial tensile test; MPC-based material slurry is prepared according to a certain mix ratio, and it is casted and compacted, and basalt fibers treated in ...

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Abstract

The invention discloses a method of improving bonding performance of a fiber bundle and a potassium magnesium phosphate cement-based material and relates to a manufacturing technology of a fiber-reinforced potassium magnesium phosphate cement composite material. A novel fiber impregnating compound prepared by the method has characteristics such as strong permeability, quick curing, controllable curing speed, high bonding strength, acid resistance, pressure resistance and high temperature resistance. In the fiber bundle cured by the novel fiber impregnating compound, fiber filaments are bonded into an integer by a network structure of -Si-O-Si-, all fiber filaments can be stressed at the same time, and axial tension of the fiber bundle is improved by twice to three times in comparison with that of the un-treated fiber bundle. In the fiber-reinforced MPC(Magnesium Phosphate Cement)-based composite material prepared by the fiber bundle cured by the novel fiber impregnating compound, dead-burned magnesium oxide powder deposited on the surface of the fiber bundle participates in hydration reaction of an MPC base body, so that interface bonding of the fiber bundle and the MPC base body is reinforced; and pulling-drawing force of the fiber bundle is improved by 15%-40% in comparison with that of the fiber bundle treated by an epoxy resin impregnating compound. The method disclosed by the invention is simple in preparation process and convenient to use, and has cost which is only 1/10-1/6 of that of the epoxy resin fiber impregnating compounds.

Description

technical field [0001] The invention relates to a new type of building material, in particular to the manufacturing technology of fiber-reinforced potassium magnesium phosphate cement composite material, in particular to a method for improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials. Background technique [0002] Since my country's reform and opening up, the national economy has grown rapidly, "scientific and technological innovation, independent innovation" has become the mainstream of my country's current industrial development, and my country's industry is gradually developing in the direction of intensive, energy-saving, emission-reducing, and low-carbon. In recent years, my country's civil engineering construction has developed rapidly, which has brought prosperity to the downstream building materials industry, but there are shortcomings in the technology of various cement-based composite materials. After searchi...

Claims

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Application Information

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IPC IPC(8): C04B14/38C04B14/42C04B28/34
Inventor 杨建明荀勇徐选臣
Owner YANCHENG INST OF TECH
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