Novel shaped phase-change material and preparation method thereof

Abstract

The invention relates to a novel shaped phase-change material and a preparation method thereof. The novel shaped phase-change material is prepared from the following raw materials in parts by weight: 1-10 parts of acrylic monomers, 1-10 parts of phosphate ester functional monomer, 0.005-0.03 parts of initiator, 10-40 parts of organic phase-change materials, 50-90 parts of deionized water and 0.1-1 part of emulsifier. The novel shaped phase-change material is excellent in performance, safe and environment-friendly, not only can play good fire retardation by modification on a capsule wall through phosphate, but also compensates the defects of inflammable performance of the organic phase-change material, as a phosphate ester group is led to the capsule wall, the flame retardant property of the phase-change material is greatly improved, application of the phase-change material in the energy-saving field is expanded, direct mixing of the fire retardant and a phase-change master batch also can be avoided, high phase-change enthalpy of the phase-change material is ensured, and negative effects caused by the heat storage performance of the phase-change material is avoided.

Description

technical field

[0001] The invention relates to a novel shaped phase-change material and a preparation method thereof, belonging to the technical field of building energy-saving materials. Background technique

[0002] Phase change materials can store or release a large amount of heat during the phase change process and keep the phase change temperature relatively stable. It is an energy-saving material that can be widely used in the fields of heat storage and temperature control, especially in the field of building energy conservation. application. Phase change microcapsules are composite phase change materials with a core-shell structure formed by coating a layer of stable film on the surface of solid-liquid phase change material particles using microcapsule technology. In this way, the phase change materials can not only Improving the stability of the phase change material can also reduce the reaction between the phase change material and the external environment and inc...

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