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Composite flame-retardant shape-stabilized phase change material and preparation method thereof

A technology of shape-setting phase change material and flame retardant compounding, which is applied in heat exchange materials, chemical instruments and methods, synthetic resin layered products, etc., and can solve the problem of low heat storage capacity and unsatisfactory flame retardant effect of flame retardant phase change materials , combustion fracture and other problems, to achieve the effect of improving heat storage performance, improving mechanical strength, and expanding the scope of application

Pending Publication Date: 2019-07-12
HEFEI ENERGY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flame retardant composite shape-setting phase change material and its preparation method to solve the problems of low heat storage capacity, unsatisfactory flame retardant effect and fracture during combustion of the flame retardant phase change material

Method used

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  • Composite flame-retardant shape-stabilized phase change material and preparation method thereof
  • Composite flame-retardant shape-stabilized phase change material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare a kind of flame-retardant composite shape-setting phase change material according to the present invention according to the following steps:

[0025] (1) First, melt the paraffin wax accounting for 70% of the total system mass percentage in the reaction kettle, add 13% olefin block copolymer to the paraffin wax for melt blending, the blending temperature is 165°C, the stirrer speed is 300rpm, and the blending time 30min, then add 12% chlorinated paraffin / antimony oxide composite flame retardant (the mass ratio of chlorinated paraffin to antimony oxide is 5:2) and blend for 15min at the same temperature and speed, and finally add 5% expanded graphite, The blending temperature is 165°C, the stirrer speed is 350rpm, and the blending time is 45min to obtain a composite shape-setting phase change material;

[0026] (2) Mix acrylic resin and expandable graphite at a mass ratio of 1:1 to obtain a flame-retardant material, and stick the flame-retardant material to the s...

Embodiment 2

[0031] As a comparative example, it was prepared according to the following steps:

[0032] (1) First, melt the paraffin wax accounting for 70% of the total system mass percentage in the reaction kettle, add 13% olefin block copolymer to the paraffin wax for melt blending, the blending temperature is 165°C, the stirrer speed is 300rpm, and the blending time 30min, then add 12% chlorinated paraffin / antimony oxide composite flame retardant (the mass ratio of chlorinated paraffin to antimony oxide is 5:2) and blend for 15min at the same temperature and speed, and finally add 5% expanded graphite, The blending temperature is 165°C, the stirrer speed is 350rpm, and the blending time is 45min to obtain a composite shape-setting phase change material;

[0033] (2) Instead of using glass fiber, directly put the above-mentioned composite shape-setting phase change material into a mold, and use a hydraulic press to form it, with a pressure of 6MPa.

[0034] The formed material is made ...

Embodiment 3

[0037] As a comparative example, it was prepared according to the following steps:

[0038] (1) First, melt the paraffin wax accounting for 70% of the total system mass percentage in the reaction kettle, add 13% olefin block copolymer to the paraffin wax for melt blending, the blending temperature is 165°C, the stirrer speed is 300rpm, and the blending time 30min, then add 12% chlorinated paraffin / antimony oxide composite flame retardant (the mass ratio of chlorinated paraffin to antimony oxide is 5:2) and blend for 15min at the same temperature and speed, and finally add 5% expanded graphite, The blending temperature is 165°C, the stirrer speed is 350rpm, and the blending time is 45min to obtain a composite shape-setting phase change material;

[0039] (2) No flame retardant material is attached to the surface of the glass fiber film;

[0040] (3) Put the above-mentioned composite shape-setting phase-change material and glass fiber film into the mold together, add five layer...

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Abstract

The invention discloses a composite flame-retardant shape-stabilized phase change material and a preparation method thereof. The composite flame-retardant shape-stabilized phase change material comprises a composite shape-stabilized phase change material layer and a flame-retardant fiber membrane material layer. With a composite alternating laminate structure, a better flame-retarding effect can be achieved while the amount of a flame retardant added is reduced, and the heat storage performance of the material is improved, so that the actual application range of the material is expanded; moreover, the mechanical strength of the material is improved, protecting the material against breakage when burned.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a flame-retardant composite shape-setting phase-change material and a preparation method thereof. Background technique [0002] Thermal control of shape-setting phase change materials is a very effective passive thermal control method, which can be widely used in the fields of construction, aerospace, and power batteries. However, shaped phase change materials are flammable substances, which limits their practical application, so it is very important to improve the flame retardancy of shaped phase change materials. [0003] At present, the flame retardant method of shaped phase change materials mainly relies on adding flame retardants to the material matrix to achieve the flame retardant effect. The commonly used types of flame retardants are mainly halogen flame retardants, phosphorus flame retardants, inorganic flame retardants and intumescent flame retardant...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B27/30B32B17/02B32B17/10B32B37/10B32B38/00C09K5/06C09K21/14
CPCB32B9/00B32B9/045B32B27/308B32B27/12B32B5/02B32B9/047B32B37/10B32B38/0004B32B38/0036C09K5/063C09K21/14B32B2250/42B32B2262/101B32B2307/3065B32B2313/04B32B2391/00
Inventor 程文龙黄一恒赵锐
Owner HEFEI ENERGY RES INST
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