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Anti-icing deicing asphalt based on phase-change energy storage exothermic material and preparation method thereof

A technology of phase change energy storage and phase change materials, which is applied to building insulation materials, building components, buildings, etc., to achieve the effect of energy saving

Active Publication Date: 2016-08-10
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after searching, there is no report on the patent or literature of anti-icing and ice-melting asphalt and its preparation method based on phase change energy storage and exothermic materials with green environmental protection

Method used

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  • Anti-icing deicing asphalt based on phase-change energy storage exothermic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 Preparation of anti-icing and melting asphalt based on phase change energy storage and heat release material

[0021] (1) Put a mixture of the four phase change materials: sodium sulfate decahydrate, disodium hydrogen phosphate dodecahydrate, calcium chloride hexahydrate, and paraffin in a weight ratio of 30:30:20:20 in a container, Stir mechanically for 10 minutes at a speed of 70r / min;

[0022] (2) Slowly add the rubber powder to the container described in step (1) at a weight ratio of 20:80 to the phase change material, and stir at 1200r / min while adding. Stir at the speed for 30 minutes, and the resulting mixture is a rubber powder-phase change material composite material (solid-solid phase transition temperature is between 3℃~5℃ (higher than the freezing point of water 0℃));

[0023] (3) Slowly add the composite material obtained in step (3) to the base asphalt, mechanically stir the two at a speed of 4000r / min to make the two uniformly blended, and the content...

Embodiment 2

[0025] Example 2 Preparation of anti-icing and melting asphalt based on phase change energy storage and heat release material

[0026] (1) Place the phase change material sodium sulfate decahydrate in a container;

[0027] (2) Slowly add the rubber powder to the container described in step (1) at a weight ratio of 25:75 to the phase change material, stir at 800r / min while adding, and after it is completely added, use 3000r / min Stir at the rotating speed for 35 minutes, and the obtained mixture is the rubber powder-phase change material composite substance;

[0028] (3) The composite material obtained in step (3) is slowly added to the base asphalt, and mechanically stirred at a rotational speed of 3000r / min to make the two uniformly blended. The content of the components is calculated by weight percentage: base asphalt 75%, composite material 25%, while heating the mixture until the temperature reaches 150°C;

[0029] (4) Maintaining the temperature of the mixture at 150° C. in step ...

Embodiment 3

[0030] Example 3 Preparation of anti-icing and melting asphalt based on phase change energy storage and heat release material

[0031] (1) Place the phase change material disodium hydrogen phosphate dodecahydrate in a container;

[0032] (2) Slowly add the rubber powder to the container described in step (1) at a weight ratio of 22:78 to the phase change material, and stir at 1500r / min while adding. After it is completely added, use 5000r / min Stir at the rotating speed for 30 minutes, and the obtained mixture is the rubber powder-phase change material composite substance;

[0033] (3) The composite material obtained in step (3) is slowly added to the base asphalt, and the two are mixed uniformly by mechanical stirring at a speed of 5000r / min. The content of the components is calculated as a weight percentage: 90% of the base asphalt, composite material 10%, while heating the mixture until the temperature reaches 170°C;

[0034] (4) Maintaining the temperature of the mixture described...

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Abstract

The invention discloses anti-icing deicing asphalt based on phase-change energy storage exothermic material, made by mixing composite phase-change material and matrix asphalt, wherein the matrix asphalt accounts for 75-90% by weight and the composite phase-change material accounts for 10-25% by weight; the matrix asphalt is petroleum asphalt, oxidized asphalt, coal pitch, lake asphalt or rock asphalt; the composite phase-change material is gelatin powder and phase-change material composite made by mixing, according to a weight ratio of 75-80:20-25: sodium sulfate decahydrate, disodium hydrogen phosphate dodecahydrate, calcium chloride hexahydrate or paraffin, or their mixture of any weight ratio, and adsorbing material gelatin powder. The anti-icing deicing asphalt prepared herein is made from the gelatin powder supported phase-change material into phase-change material and gelatin powder composite for the purpose of energy storage and release, and anti-icing and deicing capacities are imparted to the asphalt itself; the preparation method of the asphalt is simple, the asphalt is free of negative impact on road surroundings and enables green road transportation.

Description

Technical field [0001] The invention belongs to the technical field of organic cementitious materials, and in particular relates to an anti-icing and melting asphalt based on a phase change energy storage heat release material and a preparation method thereof. Background technique [0002] Icing on the road surface has a serious impact on traffic safety, not only causing a decline in traffic capacity, but also a hidden danger to traffic safety. Icing in severe cold areas will cause road closures or airport closures, which will have a greater impact on the national economy and people’s lives. At present, the methods commonly used to solve road icing at home and abroad are spraying industrial salt or other melting salt, and heating of different forms of road materials. [0003] Asphalt is an indispensable raw material for the construction of national highways. One of the cores of the world's creation of the "fifth generation of highways" is the use of solar energy to make highways t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/06C08L21/00C08K3/30C08K3/32C08K3/16
CPCC08L95/00C08L2205/03C08L91/06C08L21/00C08K2003/3045C08K2003/324C08K2003/162
Inventor 庞来学胡秀颖史红唐新德孙大志
Owner SHANDONG JIAOTONG UNIV
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