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
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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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