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Preparation method of carbon nano tube reinforcement asphalt based composite water-proof material

A technology of carbon nanotubes and waterproof materials, applied in building insulation materials, building components, buildings, etc., can solve the problems of carbon nanotubes being difficult to disperse uniformly, achieve the effects of improving mechanical properties, increasing antistatic, and solving winding and agglomeration

Inactive Publication Date: 2013-03-27
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that carbon nanotubes are difficult to uniformly disperse in the asphalt matrix, and provide a preparation method of carbon nanotubes reinforced asphalt-based composite waterproof material

Method used

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  • Preparation method of carbon nano tube reinforcement asphalt based composite water-proof material

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Embodiment 1

[0016] (1) The raw material is composed of dispersant, carbon nanotubes, asphalt, modified rubber powder and filler, and the mass percentage of each component is: dispersant 0.2%, carbon nanotubes 4.8%, asphalt 50%, modified rubber powder 15%, filler 30%;

[0017] (2) Dissolve the pure alkylphenol polyoxyethylene ether for dispersant analysis in asphalt to prepare a mixed solution with a mass concentration of 1.5%, add carbon nanotubes to the mixed solution, and stir until uniform with a high-speed emulsion shearer to form carbon nanotubes dispersed phase mixture;

[0018] (3) Pour asphalt into the reaction kettle, heat it to 170-190°C, put in modified rubber powder to maintain the temperature of the reaction solution at 175°C, modify at a constant temperature for 3 hours, add fillers to maintain the mixing temperature at 160°C for 40 minutes, and inject step (2 ) obtained carbon nanotube dispersed phase mixed liquid, kept at a constant temperature of 150° C., and stirred for...

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Abstract

The invention discloses a preparation method of carbon nano tube reinforcement asphalt based composite water-proof material, comprising the following steps: (1) weighing each component of the following raw materials according to weight percentages: 0.2-5% of dispersing agent, 1-5% of carbon nano tubes, 35-60% of asphalt, 9-15% of modified rubber powder and 20-40% of stuffing; (2), dissolving the dispersing agent in mixed liquor with a weight concentration of 0.1-10% prepared from asphalt, adding the carbon nano tubes in the mixed liquor, stirring by a high-speed emulsion shearing machine so as to form carbon nano tube disperse phase mixed liquor; (3) injecting the asphalt in a reaction kettle, heating till 170-190 DEG C, throwing the modified rubber powder to maintain the temperature of reaction liquid at 170-190 DEG C, modifying at a constant temperature for 1-4 hours, adding the stuffing at 150-190 DEG C for 20-80 minutes, injecting the carbon nano tube disperse phase mixed liquor obtained in the step (2), keeping a constant temperature of 140-170 DEG C, and stirring for 1-5 hours. The mechanical property of the product prepared by the invention is obviously improved, and the functions of static electricity resistance, microwave absorption, electromagnetic shielding and the like.

Description

technical field [0001] The invention relates to a preparation method of an inorganic non-metallic fiber reinforced asphalt-based composite waterproof material. Background technique [0002] Due to its unique structure, carbon nanotubes have excellent mechanical, optical, electrical and thermal properties, and have received extensive attention in the fields of science and industry in the 21st century. Carbon nanotubes have been used to strengthen various matrix materials, and a large number of products with excellent properties have also been obtained. As the fiber material with the highest mechanical strength, the good composite of carbon nanotubes and asphalt can realize the complementary advantages of multiple components, which can not only greatly improve the mechanical properties of asphalt-based impact resistance, tensile strength, elasticity and low temperature flexibility, but also the two The cross fusion between the properties of various materials makes the composi...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L21/00C08K13/04C08K7/00C08K3/04C08K3/34C08K3/36C08K3/26
Inventor 欧俊王芳江玉民
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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