A method for improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials

A potassium-magnesium phosphate cement and bonding performance technology is applied in the field of improving the bonding performance between fiber bundles and potassium-magnesium phosphate cement-based materials, and in the field of fiber-reinforced potassium-magnesium phosphate cement composite materials, which can solve problems such as fiber bundle breakage and achieve The effect of fast curing, high bonding strength and simple preparation process

Inactive Publication Date: 2017-04-05
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 scientific research institutions and enterprises are constantly researching and exploring technologies to improve the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials. Although some achievements have been made, there are still unsolved technologies in practical applications problem

Method used

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  • A method for improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials
  • A method for improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials
  • A method for improving the bonding performance of fiber bundles and potassium magnesium phosphate cement-based materials

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Experimental program
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Embodiment 1

[0032] Embodiment 1: Get the sodium fluorosilicate of 2 mass parts, the dead-burned magnesium oxide powder of 10 mass parts and the sodium silicate aqueous solution (modulus is 3.0, Baume degree is 50.3) of 100 mass parts, with planetary liquid mixer Stir the mixed solution at a speed of 60-90 r / min for 3-5 minutes to obtain a new fiber sizing with controllable curing speed. Use a new fiber sizing agent to evenly brush the surface of the glass fiber bundles, fully soak the glass fiber bundles, and after the glass fiber bundles have been treated for 3 days (cured), use the DL-5000 electronic tensile testing machine to conduct an axial tensile test. The treated glass fiber bundles and the glass fiber bundles treated with epoxy resin sizing agent were subjected to axial tensile test; the MPC-based material slurry was prepared according to a certain proportion, poured and compacted, and glass fibers treated in different ways were supplemented. Fiber-reinforced MPC-based composite ...

Embodiment 2

[0035] Embodiment 2: get the sodium fluosilicate of 8~10 mass parts, the dead burnt magnesia powder of 15~20 mass parts and the sodium silicate aqueous solution of 100 mass parts (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 60-90r / min for 2-3 minutes to obtain a new type of fiber sizing with controllable curing speed. Use a new fiber sizing agent to evenly brush the surface of the carbon fiber bundles, fully infiltrate the carbon fiber bundles, and after the carbon fiber bundles have been treated for 3 days (cured), perform an axial tensile test with a DL-5000 electronic tensile testing machine. The carbon fiber bundles treated with epoxy resin sizing agent are subjected to axial tensile test; the MPC-based material slurry is prepared according to a certain proportion, poured and compacted, and carbon fiber bundles treated in different ways are supplemented to prepare fiber-reinforced MPC-based composit...

Embodiment 3

[0038] Embodiment 3: get the sodium fluosilicate of 8~10 mass parts, the dead burnt magnesia powder of 15~20 mass parts and the sodium silicate aqueous solution of 100 mass parts (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 60-90r / min for 2-3 minutes to obtain a new type of fiber sizing with controllable curing speed. Brush the surface of the basalt fiber bundle evenly with a new type of fiber sizing agent, and fully soak the basalt fiber bundle. The treated basalt fiber bundles and the basalt fiber bundles treated with epoxy resin sizing agent were subjected to axial tensile test; MPC-based material slurry was prepared according to a certain mix ratio, poured and compacted, and basalt fibers treated in different ways were supplemented. The bundles were prepared into fiber-reinforced MPC-based composite material pull-out specimens, and the basalt fiber bundles with different treatment methods of untreat...

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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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Patent Type & Authority Patents(China)
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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