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Preparation method for ceramic fiber composite crumb rubber modified asphalt

A technology of ceramic fiber and modified asphalt, used in building components, building insulation materials, construction, etc., can solve the problems of easy segregation of rubber powder and asphalt, increasing the viscosity of rubber powder and asphalt, poor compatibility and dispersibility, etc. , to achieve the effect of easy loading, unloading and transportation, easy heating, good compatibility and dispersion

Inactive Publication Date: 2016-04-20
CHANGZHOU DAAO NEW MATERIAL TECH CO LTD
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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 is that the molecular chains of polymers such as rubber powder and asphalt are not the same, resulting in poor compatibility and dispersion between the two. The viscosity of the rubber powder and asphalt is easy to segregate, and the disadvantages of difficult loading and unloading transportation are provided. A ceramic fiber is prepared by mixing barium acetate and tetrabutyl titanate, and the ceramic fiber is prepared by grinding the ceramic fiber and waste tires. Rubber powder, followed by coupling the rubber powder and mixing it in a high-speed shearing machine to prepare modified asphalt. Through coupling, the asphalt and rubber powder are connected more closely, and the method of improving its strength and performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, according to the solid-liquid mass ratio of 1:10, mix barium acetate and tetrabutyl titanate, stir for 10 minutes, and place them in a beaker, then according to the mass ratio of barium acetate and triethyl diamine tetraacetic acid, 15:1, mix three Ethyl diamine tetraacetic acid was added dropwise to the beaker, stirred and mixed for 25 minutes, and vinyl acetate of 5% of the total mass of the above solution was added dropwise to prepare a precursor solution; then, the mass ratio of the precursor solution to absolute ethanol was 1:10, The precursor solution prepared above was stirred and mixed with absolute ethanol, and heated in a water bath at 75°C for 2 hours to prepare a sol, then the heating and stirring were stopped, and after standing for 3 hours for defoaming, it was rotary evaporated to 1% of its original volume. / 5, then drawing and collecting it, and calcining it in a tube furnace at 350°C for 2 hours to prepare ceramic fibers for use; select absolute e...

example 2

[0020]First, according to the solid-liquid mass ratio of 1:10, mix barium acetate and tetrabutyl titanate, stir for 13 minutes, and place them in a beaker, then according to the mass ratio of barium acetate and triethyl diamine tetraacetic acid 15:1, mix three Ethyl diamine tetraacetic acid was added dropwise to the beaker, stirred and mixed for 28 minutes, and vinyl acetate of 5% of the total mass of the above solution was added dropwise to prepare a precursor solution; then the mass ratio of the precursor solution to absolute ethanol was 1:10, Stir and mix the precursor solution prepared above with absolute ethanol, and heat it in a water bath at 78°C for 2.5 hours to prepare a sol, then stop heating and stirring, let it stand for defoaming for 4 hours, and then rotary evaporate it to the original volume. 1 / 5, then drawing and collecting it, and calcining it in a tube furnace at 400°C for 2.5 hours to prepare ceramic fibers for use; select absolute ethanol, adjust its pH to 3...

example 3

[0023] First, according to the solid-liquid mass ratio of 1:10, mix barium acetate and tetrabutyl titanate, stir for 15 minutes, and place them in a beaker, then according to the mass ratio of barium acetate and triethyl diamine tetraacetic acid 15:1, three Ethyl diamine tetraacetic acid was added dropwise to the beaker, stirred and mixed for 30 minutes, and vinyl acetate of 5% of the total mass of the above solution was added dropwise to prepare a precursor solution; then, the mass ratio of the precursor solution to absolute ethanol was 1:10, The precursor solution prepared above was stirred and mixed with absolute ethanol, and heated in a water bath at 80°C for 3 hours to prepare a sol, then the heating and stirring were stopped, and after standing for 5 hours for defoaming, it was rotary evaporated to 1% of its original volume. / 5, then drawing and collecting it, and calcining it in a tube furnace at 450°C for 3 hours to prepare ceramic fibers for use; select absolute ethano...

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Abstract

The invention discloses a preparation method for ceramic fiber composite crumb rubber modified asphalt, and belongs to the technical field of modified asphalt. According to the method, barium acetate and tetrabutyl titanate are mixed to prepare a ceramic fiber, the ceramic fiber and a waste tyre are milled to prepare mixed crumb rubber, the crumb rubber is coupled to be mixed in a high-speed shear apparatus to prepare the modified asphalt, and by the coupling effect, the asphalt is connected with the crumb rubber more closely, the strength of the asphalt is strengthened and the performance of the asphalt is improved. The preparation method has the benefits that the preparation method is simple, and in a preparation process, the ceramic fiber, the crumb rubber and the asphalt are high in compatibility and dispersibility, unlikely to be separated and easy to load, unload and transport; the modified asphalt is easy to heat, high in stability and unlikely to be influenced by low temperature and high temperature.

Description

technical field [0001] The invention relates to a preparation method of ceramic fiber composite rubber powder modified asphalt, which belongs to the technical field of modified asphalt. Background technique [0002] Bitumen is a product of petroleum processing products, which is a complex mixture of organic compounds, which can be roughly divided into two components: soft bitumen and bitumen, the wide application of bitumen depends on its remarkable water resistance and adhesion, which makes it suitable for paving. An ideal asphalt material should have good temperature sensitivity, strong anti-rutting (permanent deformation of the pavement in the form of rutting) and deformation ability at high temperatures, and be soft at low temperatures to avoid transitional tension brittleness of the pavement. That is to say, during the service period of the road, asphalt can withstand low temperature (and generate stress) to cause road shrinkage, repeated loading and unloading will not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08K9/06C08K7/04
CPCC08L95/00
Inventor 王力威盛艳花高力群
Owner CHANGZHOU DAAO NEW MATERIAL TECH CO LTD
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