A kind of mxenes/polyurethane insulation material and preparation method thereof

A thermal insulation material, polyurethane technology, applied in conductive/antistatic filament manufacturing, filament/thread forming, fire-retardant and flame-retardant filament manufacturing, etc., can solve the problems of complex process, achieve excellent electromagnetic shielding, good flame performance, the effect of overcoming flammability and lack of electromagnetic shielding properties

Active Publication Date: 2020-11-20
TAIYUAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process is more complex

Method used

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  • A kind of mxenes/polyurethane insulation material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0026] A kind of preparation method of MXenes / polyurethane insulation material of the present embodiment, comprises the following steps:

[0027] Step 1, preparation of spinning solution for flame retardant and thermal insulation materials: take 15g of polyether polyol and 3g of phosphate ester flame retardant, use S569T2 / A3 DC servo electric mixer at 1000rpm / min to stir for 15min, mix well, and let stand to completely eliminate air bubbles , and then slowly add ultra-short sulfonamide fibers with a mass fraction of 2.5% at 800rpm / min and stir for 60min, ultrasonically until the ultra-short sulfone fibers are evenly dispersed, let stand to completely eliminate the bubbles, then slowly add 5g of isocyanate, stand still to make the isocyanate Mix slowly and evenly to obtain spinning solution of flame retardant thermal insulation material;

[0028] Step 2, electrostatic melt-blown flame-retardant thermal insulation material: pour the flame-retardant thermal insulation material sp...

Embodiment 2

[0033] A kind of preparation method of the MXenes / polyurethane insulation material with flame-retardant and electromagnetic shielding properties of the present embodiment, comprises the following steps:

[0034] Step 1, preparation of spinning solution for flame retardant insulation material: take 15g polyether polyol and 3g phosphate flame retardant, use S569T2 / A3 DC servo electric mixer at 1100rpm / min to stir for 13min, mix evenly, let stand to completely eliminate air bubbles , and then slowly add ultra-short polysulfone fibers with a mass fraction of 5% at 1000rpm / min and stir for 45min, ultrasonically until the ultra-short polysulfone fibers are evenly dispersed, let stand to completely eliminate the bubbles, then slowly add 10g of isocyanate, and stand to make the isocyanate Mix slowly and evenly to obtain spinning solution of flame retardant thermal insulation material;

[0035] Step 2, electrostatic melt-blown flame-retardant thermal insulation material: pour the flame...

Embodiment 3

[0040] A kind of preparation method of MXenes / polyurethane insulation material of the present embodiment, comprises the following steps:

[0041] Step 1, preparation of spinning solution for flame retardant insulation material: take 15g polyether polyol and 3g phosphate flame retardant, use S569T2 / A3 DC servo electric mixer at 1200rpm / min to stir for 10min, mix evenly, let stand to completely eliminate air bubbles , then slowly add ultra-short sulfonamide fibers with a mass fraction of 7.5% at 1200rpm / min and stir for 30min, ultrasonically until the ultra-short sulfone fibers are evenly dispersed, let stand to completely eliminate the bubbles, then slowly add 15g of isocyanate, stand still to make the isocyanate Mix slowly and evenly to obtain spinning solution of flame retardant thermal insulation material;

[0042] Step 2, electrostatic melt-blown flame-retardant thermal insulation material: pour the flame-retardant thermal insulation material spinning solution obtained in s...

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Abstract

The present invention relates to the preparation of composite materials, more particularly to an MXenes / polyurethane thermal insulation material and a preparation method thereof. According to the preparation method of the material, an electrostatic melt blowing technology is adopted, a polyurethane mixed liquid containing different contents of polysulfonamide fibers and flame retardant is preparedinto fiber-shaped bubbles in a blowing-spinning mode through high voltage and air pressure; and then the MXenes and the prepared flame-retardant thermal insulation material are combined through electrostatic spinning to prepare the novel flame-retardant and electromagnetic shielding performance thermal insulation material. The material has the advantages of high thermal insulation, excellent flame retardance, high electromagnetic shielding and the like, and overcomes the defects of flammability and lack of electromagnetic shielding and toxic gas generated in combustion of the traditional thermal insulation material. The method can be adjusted according to different usage environments, the process is simple, the operation is safe, the performance is excellent, and the method is suitable for large-scale production.

Description

technical field [0001] The invention relates to the preparation of composite materials, in particular to an MXenes / polyurethane thermal insulation material and a preparation method thereof. Background technique [0002] Polyurethane foam materials are widely used in automobiles, furniture, building wall insulation and other fields due to their excellent thermal insulation and sound absorption properties. Rigid polyurethane foam breaks down easily in the air and produces large amounts of tiny flammable fragments. These fragments spread to the polyurethane surface and mix with the air, making them highly flammable. At the same time, rigid polyurethane foam releases a large amount of toxic gases such as: low molecular weight hydrocarbons, CO, CO when burning 2 , HCN et al. These toxic fumes, which can be inhaled by humans, pose a potential health hazard and are the leading cause of death in fires. Therefore, it is imperative to improve the flame retardancy of rigid polyuret...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D04H3/02D01D5/00D01D10/06D01F1/07D01F1/09D01F6/48D01F8/12D01F8/16
CPCD01D5/0007D01D5/003D01D5/0061D01D10/06D01F1/07D01F1/09D01F6/48D01F8/12D01F8/16D04H1/728D04H3/02D10B2401/16
Inventor 王文敏王捷石瑛
Owner TAIYUAN NORMAL UNIV
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