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Flame-retardant phase-change material film

A material film and phase change technology, applied in the field of phase change heat storage film, can solve the problem of low flame retardant grade, achieve high-efficiency flame retardant performance, and avoid the effect of difficult fire control

Pending Publication Date: 2020-05-15
STONEPLUS THERMAL MANAGEMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that the flame retardant level of film products made of organic phase change materials in the prior art is low, and provides a phase change material film whose flame retardant level can reach V0;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a phase change material film, which comprises a mass proportion of 25% matrix, 54.5% phase change microcapsules, 20% flame retardant, 0.5% wetting and dispersing agent and 0.1% defoaming agent agent.

[0022] The matrix in this embodiment is epoxy resin; the phase change microcapsules are composed of wall material and core material, the core material contains paraffin, and the wall material is melamine resin; Aluminum, 15% expanded graphite and 2% nano-silicon oxide are three components; the wetting and dispersing agent is BYK 9077; the defoamer is BYK 1770.

[0023] The preparation process of the flame retardant phase change film in the present embodiment is as follows:

[0024] Add each component in the formula of this example into a stirring container according to a certain ratio, and adjust different stirring speeds and stirring times until the powder in the solution has no agglomeration and is evenly dispersed. After passing the inspectio...

Embodiment 2

[0026] This embodiment provides a phase change material film, which comprises a mass proportion of 10% matrix, 83.9% phase change microcapsules, 5% flame retardant, 0.1% wetting and dispersing agent and 1% defoaming agent agent.

[0027] The matrix in this embodiment includes two kinds of resins: acrylic resin and epoxy resin; the phase-change microcapsules are also composed of wall material and core material, the core material is fatty acid, and the wall material is organic urea-formaldehyde resin. The flame retardant in this embodiment comprises graphene, polyphosphate and cage silsesquioxane, wherein the mass proportion of graphene is 0.5% of the flame retardant part, and the proportion of polyphosphate is 60% , the proportion of cage silsesquioxane is 39.5%. The wetting and dispersing agent selected in this example is BYK163; the defoamer is a mixture of BYK-017 and BYK 1719, and the mass ratio of BYK-017 and BYK 1719 is 50% each.

[0028] The preparation process of the ...

Embodiment 3

[0031] This embodiment provides a phase change material film, which comprises a mass proportion of 50% matrix, 30% phase change microcapsules, 18.8% flame retardant, 0.2% wetting and dispersing agent and 1% defoaming agent.

[0032] The matrix matrix in this example is EPDM resin. Phase-change microcapsules are also composed of wall material and core material, the core material contains fatty alcohol, and the wall material is silicon oxide. The flame retardant in this embodiment contains 5% aluminum hydroxide, 5% magnesium hydroxide, 3.8% aluminum oxide, 5% polyamine polyphosphate and other components. The wetting and dispersing agent in this example is BYK-2200, and the defoamer is BYK-070.

[0033] The preparation process of the flame retardant phase change film in the present embodiment is as follows:

[0034] Add each component in the formula of this example into a stirring container according to a certain ratio, and adjust different stirring speeds and stirring times u...

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Abstract

The invention relates to the technical field of thermal management film materials, and particularly discloses a flame-retardant phase-change material film which comprises 3%-50% of a matrix, 30%-80% of phase-change microcapsules, 5%-20% of a flame retardant, 0.1%-0.5% of a wetting dispersant and 0.1%-1% of a defoaming agent. The invention provides the efficient environment-friendly halogen-free flame-retardant phase-change film, and the phase-change composite film meets the flame-retardant V0 grade in a space with the addition amount of the flame retardant being less than 20%. Therefore, a safer application environment can be guaranteed when the organic phase-change material with improved flame retardance is applied to electronic products.

Description

technical field [0001] The invention relates to the technical field of thermal management thin film materials, in particular to a phase change heat storage thin film with a flame-retardant function applied to the interior and surrounding areas of electronics, electrical appliances and batteries. Background technique [0002] Phase change material is a new type of heat storage material, which has the characteristics of high heat storage density and constant temperature during the phase change process, so it can be used in aerospace, cold chain transportation, organic flowers, construction, refrigeration and heating systems, high temperature waste heat recovery and Solar power generation and many other fields have a wide range of applications. The invention aims at the special performance of the phase change material, and through a reasonable design scheme, the phase change material is used in the interior and surrounding areas of electronics, electrical appliances, and batter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L91/06C08L61/28C08L33/04C08L85/02C08L83/04C08L23/16C08L61/24C08K13/04C08K3/22C08K7/24C08K3/36C08K3/04C08K13/06C08K9/10C08K5/09C08K5/05C08K3/32C08J5/18
CPCC08J5/18C08J2363/00C08J2491/06C08J2461/28C08K13/04C08K2003/2227C08K7/24C08K2201/011C08K3/36C08J2333/04C08J2461/24C08J2485/02C08J2483/04C08K9/10C08K5/09C08K3/042C08K13/06C08J2323/16C08K5/05C08K2003/2224C08K2003/323
Inventor 贾蓉蓉
Owner STONEPLUS THERMAL MANAGEMENT TECH
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