A kind of flame-retardant phase change microcapsule and preparation method thereof

A phase-change microcapsule, flame-retardant technology, applied in the directions of microcapsule preparation, microsphere preparation, chemical instruments and methods, etc., can solve the problem of low mechanical strength of the polymer capsule wall of phase change microcapsules, phosphonate monomers, etc. The reaction process is difficult to control, and the cross-linking density of the phase change microcapsule wall is low.
CN109225085BInactive Publication Date: 2020-07-31SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2020-07-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flame-retardant phase-change microcapsule and a preparation method thereof, and relates to the technical field of energy-saving materials. The capsule contains an organic phase-change material and a capsule wall wrapping the organic phase-change material; the general formula of the organic phase-change material is C n h 2n+2 straight-chain or branched-chain alkanes, the general formula is C n h 2n The higher fatty acid of COOH, the general formula is C n h 2n One or more of the higher fatty alcohols of OH, wherein, n=12-32; the capsule wall is made of phosphorus-containing diamine monomer, melamine, formaldehyde solution, emulsifier and deionized water. The flame-retardant phase-change microcapsules of the present invention use phosphorus-containing melamine-formaldehyde resin as the capsule wall material, which greatly improves the flame-retardant performance of the phase-change microcapsules, makes up for the flammability defects of organic phase-change materials, and can also avoid The direct mixing of flame retardants and organic phase change materials ensures that the phase change microcapsules have a high energy storage density.
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Description

technical field

[0001] The invention relates to the technical field of energy-saving materials, in particular to a flame-retardant phase-change microcapsule and a preparation method thereof. Background technique

[0002] Energy is the basis for the survival and development of human society. With the increasing energy demand of human society and the increasing shortage of traditional energy, how to develop new energy and improve energy utilization has become an urgent task for scientists at home and abroad. Phase change materials (PCMs) are a class of functional materials that use the phase change process to absorb and release heat, and realize energy storage and temperature regulation during the phase change process. Phase-change energy storage materials can store unnecessary heat and release it when needed, thereby improving energy utilization. Therefore, phase-change energy storage materials are widely used in energy-saving buildings, solar energy storage, textile chemical...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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