Ice and snow melting phase-change material for road asphalt mixture and production method thereof

Abstract

The invention discloses an ice and snow melting phase-change material for a road asphalt mixture and a production method thereof, and relates to the technical field of ice and snow melting phase-change materials. The raw material ratio (kg / m<3>) of phase-change wax to high-density polyethylene to polyacrylamide to stearic acid to sodium hydroxide is (40-55):(15-25):(10-15):(10-15):(5-7). The production method of the ice and snow melting phase-change material comprises the following steps: putting the phase-change wax in a stirrer according to the ratio and heating to 180-220 DEG C; then addingthe high-density polyethylene, the polyacrylamide and the stearic acid according to the ratio, mixing, uniformly stirring and then adding the raw materials into a forming machine. The ice and snow melting phase-change material for the road asphalt mixture and the production method thereof, disclosed by the invention, have the benefits that a phase-change heat storage mechanism is utilized, a potential heat value is higher, solar energy is absorbed by the phase-change heat storage mechanism, and at night or after snowing, the pavement temperature is automatically adjusted by releasing phase-change heat to realize the effect of melting ice and snow; road icing is avoided, the road safety is improved, and people can still pass safely in snowy days; the road service life can also be prolonged.

Description

technical field [0001] The invention belongs to the technical field of ice and snow melting phase change materials, in particular to an ice and snow melting phase change material for road asphalt mixture and a manufacturing method. Background technique [0002] Phase Change Material (PCM - Phase Change Material) refers to a substance that changes the state of matter and provides latent heat when the temperature remains unchanged. The process of changing physical properties is called a phase change process, and the phase change material will absorb or release a large amount of latent heat at this time. However, the existing snow-melting phase-change materials for road asphalt mixtures have low snow-melting efficiency and slow snow-melting speed during use, which is prone to incomplete snow-melting. Contents of the invention [0003] In order to solve the problem that the existing ice and snow melting phase change materials for road asphalt mixtures have low snow melting ef...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing ice and snow melting phase change materials for road asphalt mixtures have low snow melting efficiency, and at the same time, the snow melting speed is slow, and snow melting is prone to incomplete phenomenon; the purpose of the present invention is to provide a road asphalt mixture. Ice and snow melting phase change material and manufacturing method