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A kind of flame retardant phase change energy storage thermal insulation material and preparation method thereof

A technology of thermal insulation and phase change energy storage, which is applied in heat exchange materials, chemical instruments and methods, etc., can solve the problem of non-reduction, and achieve improved thermal insulation performance, good flame retardant effect, and reduced fire hazard. Effect

Active Publication Date: 2019-08-20
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this stage, rigid polyurethane foam is most commonly used as external wall insulation materials. How to improve its thermal insulation performance has always been a question that people think about; using phase change energy storage that absorbs or releases phase change latent heat during the phase change process Technology has also gradually entered people's field of vision. The so-called phase change energy storage material is a material that can maintain its own temperature within a specific temperature range and store or release heat by changing its physical state; Adding phase-change energy storage materials to rigid polyurethane foam can reduce the thermal conductivity of the material and improve the thermal insulation effect of the material, but the addition of phase-change energy storage materials greatly increases the fire risk of rigid polyurethane materials. Therefore, it is urgent There is a need for a new type of polymer material with improved flame retardant performance without reducing the thermal insulation performance of the material itself or even improving it.

Method used

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  • A kind of flame retardant phase change energy storage thermal insulation material and preparation method thereof
  • A kind of flame retardant phase change energy storage thermal insulation material and preparation method thereof
  • A kind of flame retardant phase change energy storage thermal insulation material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] A flame-retardant phase-change energy storage material, comprising the following components by weight:

[0040] 100 parts of modified polyether polyol, 20 parts of diethanolamine, 150 parts of polymethylene polyphenylisocyanate, 2.0 parts of triethylenediamine, 0.3 parts of stannous octoate, 2.0 parts of silicone oil, 15 parts of n-hexane, ammonium polyphosphate 10 parts, melamine 10 parts and water 2 parts.

[0041] The preparation process of the modified polyether polyol is as follows: using phosphorus oxychloride as a coupling agent, through the sufficient reaction of its P-Cl bond and OH, the phase change energy storage material polyethylene glycol is bonded to glycerol base polyoxypropylene ether;

[0042] Specifically include the following steps:

[0043] (1) Add 30ml of tetrahydrofuran into a three-necked round-bottomed flask, then slowly add 15g of polyethylene glycol-800, stir rapidly at room temperature, and obtain solution A after dissolving;

[0044] (2) ...

Embodiment 2

[0050] A flame-retardant phase-change energy storage material, comprising the following components by weight:

[0051] 120 parts of modified polyether polyol, 25 parts of diethanolamine, 146 parts of polymethylene polyphenylisocyanate, 2.5 parts of triethylenediamine, 0.5 part of stannous octoate, 3.0 parts of silicone oil, 10 parts of n-hexane, ammonium polyphosphate 30 parts, 30 parts of melamine and 1.5 parts of water.

[0052] The preparation process of the modified polyether polyol is as follows: using phosphorus oxychloride as a coupling agent, through the sufficient reaction of its P-Cl bond and OH, the phase change energy storage material polyethylene glycol is bonded to trimethylol Propane polyoxypropylene ether;

[0053] Specifically include the following steps:

[0054] (1) Add 50ml of tetrahydrofuran into a three-necked round-bottomed flask, then slowly add 25g of polyethylene glycol-800, stir rapidly at room temperature, and obtain solution A after dissolving; ...

Embodiment 3

[0061] A flame-retardant phase-change energy storage material, comprising the following components by weight:

[0062] 80 parts of modified polyether polyol, 23 parts of diethanolamine, 153 parts of polymethylene polyphenylisocyanate, 2.3 parts of triethylenediamine, 0.4 part of stannous octoate, 2.5 parts of silicone oil, 13 parts of n-hexane and 1.8 parts of water .

[0063] The preparation process of the modified polyether polyol is as follows: using phosphorus oxychloride as a coupling agent, through the sufficient reaction of its P-Cl bond and OH, the phase-change energy storage material polyethylene glycol is bonded to the pentaerythritol-based polyol. Propylene oxide ether;

[0064] Specifically include the following steps:

[0065] (1) Add 70ml of tetrahydrofuran into a three-necked round-bottomed flask, then slowly add 30g of polyethylene glycol-600, stir rapidly at room temperature, and obtain solution A after dissolving;

[0066] (2) At room temperature, add 11.5...

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Abstract

The invention discloses a flame-retardant phase-change energy storage thermal insulation material and a preparation method thereof. The material is composed of the following components: modified polyether polyol, polymethylene polyphenylisocyanate, diethanolamine, triethylenediamine, stannous octoate, silicone oil, n-hexane, water, ammonium polyphosphate and melamine; Modified polyether polyol is prepared by grafting phase-change energy storage material polyethylene glycol onto polyether polyol with phosphorus oxychloride as a coupling agent, and the phase-change energy storage material reacts completely in the form of bonding On to polyether polyols. The flame-retardant phase-change energy storage thermal insulation material prepared by the present invention not only has thermal insulation performance, but also has flame-retardant performance, which provides great support for the safety of building exterior wall thermal insulation and promotes The progress and development of my country's energy-saving engineering fire protection technology is of great significance.

Description

technical field [0001] The invention designs a thermal insulation material, specifically a flame-retardant phase change energy storage thermal insulation material and a preparation method thereof. The flame-retardant phase-change energy-storage thermal insulation material of the present invention has thermal insulation function, flame-retardant function and energy storage function in one, and has great prospects in the application of building energy-saving external maintenance structures. Background technique [0002] Polyurethane foam is a new type of polymer synthetic material, which is a polymer with repeating structural units of urethane chain segments made by the reaction of isocyanate and polyol. At present, rigid polyurethane foam is mainly used in construction industry, refrigeration equipment, furniture industry, household appliances and other fields. [0003] At this stage, rigid polyurethane foam is most commonly used as external wall insulation materials. How to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/65C08G18/64C08G18/32C08G81/00C08G65/327C08K3/32C08K5/3492C08J9/14C09K5/06C08G101/00
Inventor 赵乘寿马跃杨悸陈俊敏
Owner SOUTHWEST JIAOTONG UNIV