Phase-change temperature control material and preparation method thereof

Abstract

The invention discloses a phase-change temperature control material and a preparation method thereof. The phase-change temperature control material comprises the following components in parts by mass:70-100 parts of matrix resin; 1-10 parts of phase change metal oxide powder; 5-20 parts of an organic phase change material; 8-25 parts of heat conduction powder; 1-5 parts of a dispersing agent; 0-5parts of a compatilizer; and 0.1-1 part of antioxidant. The preparation method of the phase-change temperature control material comprises the following steps of: uniformly mixing the components, adding the mixture into a double-screw extruder, and carrying out extrusion granulation to obtain the phase-change temperature control material. The phase-change temperature control material has the advantages of high phase-change latent heat, high heat conductivity, excellent comprehensive mechanical properties and simple preparation method, and can be widely used for producing and processing batteryshells, household appliance shells, industrial equipment shells and other products.

Description

technical field [0001] The invention relates to the technical field of phase change materials, in particular to a phase change temperature control material and a preparation method thereof. Background technique [0002] Plastic is a material used in the production of many electronic and electrical equipment, such as: bases and protective covers of lamps, mobile phone and computer casings, battery casings, various home appliance components, etc. During the use of these devices, the temperature of the plastic shell is a major factor affecting the use effect. The control of the plastic temperature can ensure the stable output of electrical power and improve the user experience, and can effectively prevent the occurrence of fire. At present, the control of plastic temperature often requires additional refrigeration or heating, which consumes a lot of energy. Therefore, zero energy consumption temperature control has become the direction and focus of research. [0003] Phase ch...

AI Technical Summary

Problems solved by technology

However, inorganic phase change materials are prone to phase separation when used in plastics, and are prone to irreversible dehydration during plastic extrusion and processing. In practical applications, the effect of phase change temperature control cannot be achieved, while the thermal conductivity of organic phase change materials Small, the energy storage capacity per unit volume is small, and the heat absorption or release is too slow. It is not conducive to temperature control when used in plastics, and it is easy to cause heat absorption too slow and cause a fire

Therefore, a phase change temperature control material with satisfactory practical effect has not been developed yet.

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