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A kind of preparation method of light-transmitting fiber for cement-based light-transmitting material

A light-transmitting material and cement-based technology, which is applied in fiber treatment, spinning solution preparation, fiber chemical characteristics, etc. Light material appearance and durability and other issues, to achieve the effect of low cost, enhanced strength, simple preparation steps

Active Publication Date: 2018-11-16
扬州市其乐纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: the light-transmitting fiber in the existing cement-based light-transmitting material has poor adhesion, which makes it relatively move, and easily protrudes or falls off from the cement matrix, which affects the appearance and appearance of the cement-based light-transmitting material. Durability problem, the present invention mainly mixes and heats the modified starch mixture liquid and sorbitan monooleate, and then adds epichlorohydrin dropwise to obtain modified starch microspheres, and then adds them to polymethyl In the heated mixture of methyl acrylate resin and dimethylformamide, ultrasonic dispersion treatment is carried out to obtain a modified aging solution, which is electrospun to collect the matrix light-transmitting fiber, and finally the matrix light-transmitting fiber is treated After drying, a light-transmitting fiber for cement-based light-transmitting materials can be obtained

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, mix cornstarch and 0.5mol / L sodium hydroxide solution in a mass ratio of 1:5 and put them in a beaker, heat in a water bath at 50°C for 30min to prepare a modified starch mixture, and then calculate the mixture by weight parts , weigh 30 parts of modified starch mixture prepared above, 5 parts of sorbitan monooleate, 3 parts of polyoxyethylene sorbitan monooleate, 15 parts of n-butane and 40 parts of acetone in three ports In the flask, heat it in a water bath at 75°C for 15 minutes; after the water bath heating is completed, add epichlorohydrin with 10% n-butane quality dropwise to the three-necked flask, and control the dropping time for 15 minutes. Heating in a water bath at 70°C for 2 hours, after the heating is completed, let it stand for cooling and suction filtration, dry the filter residue at 80°C for 8 hours, and then grind to prepare modified starch microspheres; Stir and mix methyl methacrylate resin and dimethylformamide and place them in a beaker. Af...

example 2

[0020]First, mix cornstarch and 0.5mol / L sodium hydroxide solution in a mass ratio of 1:5 and put them in a beaker, heat in a water bath at 45°C for 25min to prepare a modified starch mixture, and then calculate the mixture by weight parts , weigh 25 parts of modified starch mixture prepared above, 3 parts of sorbitan monooleate, 2 parts of polyoxyethylene sorbitan monooleate, 10 parts of n-butane and 35 parts of acetone in three ports In the flask, heat in a water bath at 65°C for 10 minutes; after the water bath heating is completed, add epichlorohydrin with a mass of 10% n-butane dropwise to the beaker, and control the dropping time for 10 minutes. Heating in a water bath at ℃ for 1h, after the heating is completed, let it stand to cool and filter with suction, dry the filter residue at 65°C for 6h, and then grind to prepare modified starch microspheres; then, according to the mass ratio of 1:5, polymethyl Methyl acrylate resin and dimethylformamide were stirred and mixed a...

example 3

[0023] First, mix cornstarch and 0.5mol / L sodium hydroxide solution in a mass ratio of 1:5 and put them in a beaker, heat in a water bath at 47°C for 27min to prepare a modified starch mixture, and then calculate the mixture by weight parts , weigh 27 parts of modified starch mixture prepared above, 4 parts of sorbitan monooleate, 3 parts of polyoxyethylene sorbitan monooleate, 12 parts of n-butane and 37 parts of acetone in three ports In the flask, heat it in a water bath at 70°C for 12 minutes; after the water bath heating is completed, add epichlorohydrin with 10% n-butane quality dropwise to the three-necked flask, and control the dropping time for 12 minutes. Heating in a water bath at 67°C for 2 hours, after the heating is completed, let it stand for cooling and suction filtration, dry the filter residue at 70°C for 7 hours, and then grind to prepare modified starch microspheres; Stir and mix methyl methacrylate resin and dimethylformamide and put them in a beaker. Afte...

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Abstract

The invention relates to a preparation method of light-transmitting fibers for a cement-based light-transmitting material, and belongs to the technical field of light-transmitting fiber preparation. The method mainly includes the steps that modified starch mixed liquor is mixed with sorbitan monooleate and other substances, the mixture is heated, epoxy chloropropane is dropwise added, and modified starch microspheres are obtained; then, the modified starch microspheres are added into a heating mixture of polymethyl methacrylate resin and dimethylformamide, ultrasonic dispersion treatment is carried out, and modified aged liquor is obtained; then, the modified aged liquor is subjected to electrostatic spinning, and matrix light-transmitting fibers are obtained through collecting; finally, the matrix light-transmitting fibers are treated and dried, and the light-transmitting fibers for the cement-based light-transmitting material can be obtained. The prepared light-transmitting fibers for the cement-based light-transmitting material have high light transmittance performance, and the light transmittance reaches 87% or above; meanwhile, the relative mechanical property of a cement matrix is not influenced, the strength is improved, and durability is achieved.

Description

technical field [0001] The invention relates to a method for preparing a light-transmitting fiber for a cement-based light-transmitting material, and belongs to the technical field of light-transmitting fiber preparation. Background technique [0002] Cement-based light-transmitting material is a new light-transmitting material, which is completely different in terms of material composition, light-transmitting principle, and material performance. Its basic composition is that a large number of optical fibers are embedded in a cement-based material matrix in a certain spatial arrangement and combination. The cement-based material used as the matrix should be fine aggregate, high-fluidity cement slurry or concrete. The principle of light transmission is different from the light transmission of the matrix of glass or plexiglass material, but relies on a large number of optical fibers to transmit light between the side surfaces of the blocks. [0003] At present, there are few ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/52D01F1/10D01F11/06D01D1/02D01D5/00C08B31/12C04B16/06
CPCC04B16/065C08B31/12D01D1/02D01D5/003D01F1/10D01F6/52D01F11/06
Inventor 陈建峰薛培龙高玉刚
Owner 扬州市其乐纤维科技有限公司