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Hydrophobic modified expanded vermiculite and preparation method thereof, modified rubber asphalt and preparation method and application thereof

A technology of expanded vermiculite and hydrophobic modification, applied in building components, building insulation materials, buildings, etc., can solve the problems of waterproof performance and strength decline of asphalt materials, insignificant energy saving and noise reduction effect, single waterproof function, etc., and achieve excellent performance. The effect of thermal insulation and noise reduction, energy saving, improvement of waterproof and flame retardant functions, and improvement of thermal insulation, noise reduction and flame retardant performance

Pending Publication Date: 2022-03-04
亚士防水科技(滁州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional asphalt materials are mainly used as waterproof materials. In recent years, polymer modified asphalt and rubber modified asphalt materials have made great contributions to the development of asphalt materials and greatly improved the waterproof effect of asphalt materials. The material has excellent stretching, bonding, high and low temperature resistance and other properties, but the main thing is to improve its single waterproof function, and its energy saving and noise reduction effect is not significant
[0003] Some researchers add thermal insulation and noise reduction fillers to asphalt materials to improve the thermal insulation and energy saving functions of asphalt materials, but the addition of thermal insulation and noise reduction fillers will lead to varying degrees of decline in the waterproof performance and strength of asphalt materials, which cannot meet people's needs.

Method used

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  • Hydrophobic modified expanded vermiculite and preparation method thereof, modified rubber asphalt and preparation method and application thereof
  • Hydrophobic modified expanded vermiculite and preparation method thereof, modified rubber asphalt and preparation method and application thereof
  • Hydrophobic modified expanded vermiculite and preparation method thereof, modified rubber asphalt and preparation method and application thereof

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preparation example Construction

[0098] According to a third aspect of the invention, the present invention provides a method of modifying rubber asphalt, including the following steps:

[0099] The emulsified asphalt, vermiculite-rubber emulsion mixture and optionally the antifoaming agent are mixed uniform to obtain modified rubber asphalt.

[0100] In one embodiment of the invention, the rubber asphalt was prepared according to the following steps:

[0101] In the dispersing tank of the high-speed disperser, the speed was adjusted to 420 R / min, add a defoamer, stirred for 10 min, increase the speed to 800R / min, and then slowly pour the emulsified asphalt in the emulsified asphalt. Medium, dispersed for 30 min to give modified rubber asphalt.

[0102] The construction of the modified rubber asphalt provided by the present invention includes, but is not limited to, roll coating, spraying, brushing, etc.

[0103] According to a fifth aspect of the invention, the present invention provides the application of h...

Embodiment 1

[0110] The present embodiment provides a hydrophobically modified expanded vermiculite, prepared according to the following steps:

[0111] 1 part of zinc stearate was dissolved in 49 parts of anhydrous ethanol to prepare an ethanol solution of anhydrous zinc stearate, 50 parts of expanded vermiculite and then added to a uniformly mixed solution of ethanol or zinc stearate, for 30min at 95 deg.] C, and then dried to give hydrophobically modified expanded vermiculite.

Embodiment 2

[0113] The present embodiment provides a hydrophobically modified expanded vermiculite, which embodiment differs from the embodiment 1 in that the amounts of zinc stearate 2 parts, the amount of ethanol is 48 parts, all the remaining steps of Example 1 the same, is not repeated herein.

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Abstract

The invention provides hydrophobic modified expanded vermiculite and a preparation method thereof, and modified rubber asphalt and a preparation method and application thereof, and relates to the technical field of waterproof materials, the hydrophobic modified expanded vermiculite is prepared by adding expanded vermiculite into a hydrophobic modifier solution, mixing and reacting. According to the preparation method of the hydrophobic modified expanded vermiculite provided by the invention, the expanded vermiculite is modified by adopting the hydrophobic modifier, so that the modified expanded vermiculite keeps the original internal porous structure of the expanded vermiculite, the interior and the outer surface of the modified expanded vermiculite are hydrophobic, and meanwhile, the modified expanded vermiculite also has excellent flame retardant property; therefore, the heat-insulating, noise-reducing and flame-retardant properties are effectively improved, and the modified asphalt is more suitable for modifying an asphalt system.

Description

Technical field [0001] The present invention relates to the field of waterproof materials, in particular, to a hydrophobic modified expansion vermiculite and preparation method, modified rubber bitumen and preparation method and application. Background technique [0002] Traditional asphalt materials are mainly used as waterproof materials. The polymer modified asphalt, rubber modified asphalt materials in recent years have made great contributions to the development of asphalt materials, which greatly improves the waterproof effect of asphalt materials. The material has excellent stretching, bonding, high and low temperature and so on, but mainly to improve its single waterproof function, and its energy-saving noise reduction effect is not significant. [0003] Some researchers add insulation and noise reduction fillers to asphalt materials to increase the temperature-saving function of asphalt materials, but the addition of insulation and noise reduction fillers will result in ...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K7/26C08L95/00C08L57/02C08L11/02
CPCC08K9/04C08K7/26C08L95/005C08L2201/02C08L57/02C08L11/02
Inventor 赵渊胡中元叶佳杰李金钟
Owner 亚士防水科技(滁州)有限公司
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