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Flame-retardant aging-failure-resistant polyurethane composite wave-absorbing material

A composite wave absorbing material and polyurethane technology, applied in the field of functional materials, can solve the problems of large size and complex production process, and achieve the effects of stable electrical performance, simple preparation process and improved electrical performance.

Inactive Publication Date: 2020-06-02
张猛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material has defects such as large size and complicated manufacturing process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An embodiment of the present invention provides a polyurethane composite wave-absorbing material that is flame-retardant, aging-resistant and failure-resistant, which is obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 30 parts of toluene diisocyanate, and 0.05 part of nano-carbon sol , 0.2 parts of nano-silica, 10 parts of deionized water, 5 parts of dimethyl methyl phosphate, 2 parts of graphene oxide, 10 parts of ferrite, 1 part of zirconia, 2 parts of zinc borate, 0.02 parts of stannous octoate , 0.03 parts of triethylenediamine, 0.2 parts of silicone surfactant, 2 parts of sodium bicarbonate.

[0020] The embodiment of the present invention also provides a preparation method of the above-mentioned polyurethane composite wave-absorbing material with flame retardant and aging resistance, which includes the following steps:

[0021] Mixing of raw materials: the above mass parts, polyether polyol, dimethyl methyl phosphate,...

Embodiment 2

[0028] The embodiment of the present invention provides a polyurethane composite wave-absorbing material that is flame-retardant, aging-resistant and failure-resistant, and is obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 40 parts of toluene diisocyanate, 0.15 parts of nano carbon sol, nano 0.3 parts of white carbon black, 13 parts of deionized water, 10 parts of dimethyl phosphate, 4 parts of graphene oxide, 13 parts of ferrite, 2 parts of zirconia, 4 parts of zinc borate, 0.08 parts of stannous octoate, three 0.12 parts of ethylene diamine, 1 part of silicone surfactant, 4 parts of sodium bicarbonate.

[0029] The embodiment of the present invention also provides a preparation method of the above-mentioned flame-retardant, aging-resistant and failure-resistant polyurethane composite wave-absorbing material, which is basically the same as the preparation method provided in Example 1, except that:

[0030] Reactive foaming: the ...

Embodiment 3

[0035]The embodiment of the present invention provides a polyurethane composite wave-absorbing material that is flame-retardant, aging-resistant and failure-resistant, which is obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 45 parts of toluene diisocyanate, and 0.2 part of nano-carbon sol , 0.35 parts of nano-silica, 15 parts of deionized water, 13 parts of dimethyl methyl phosphate, 5 parts of graphene oxide, 15 parts of ferrite, 3 parts of zirconia, 5 parts of zinc borate, 0.2 parts of stannous octoate , 0.3 parts of triethylenediamine, 1.6 parts of silicone surfactant, 5 parts of sodium bicarbonate.

[0036] The embodiment of the present invention also provides a preparation method of the above-mentioned flame-retardant, aging-resistant and failure-resistant polyurethane composite wave-absorbing material, which is basically the same as the preparation method provided in Example 1, except that:

[0037] Reactive foaming: the ro...

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Abstract

The invention provides a flame-retardant aging-failure-resistant polyurethane composite wave-absorbing material, which is prepared by carrying out a polymerization reaction on the following componentsin parts by mass: 100 parts of polyether polyol, 30-60 parts of toluene diisocynate, 0.05-0.4 part of nanometer carbon sol, 0.2-0.5 part of nano white carbon black, 10-20 parts of deionized water, 5-20 parts of dimethyl methylphosphate, 2-8 parts of graphene oxide, 10-20 parts of ferrite, 2-10 parts of zirconium oxide, 2-8 parts of zinc borate, 0.02-0.4 part of stannous octoate, 0.03-0.6 part oftriethylene diamine, 0.2-3 parts of an organosilicon surfactant and 2-8 parts of sodium bicarbonate. The flame-retardant aging-failure-resistant polyurethane composite wave-absorbing material providedby the invention has the characteristics of low smoke, low toxicity, flame retardancy, wide absorption frequency distribution of absorbed waves and the like. The invention also provides a preparationmethod of the flame-retardant aging-failure-resistant polyurethane composite wave-absorbing material.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a polyurethane composite wave-absorbing material which is flame-retardant and aging-resistant, and a preparation method thereof. Background technique [0002] Absorbing materials refer to materials that can absorb most of the electromagnetic waves projected on its surface and convert them into other forms of energy with almost no reflection. With the development of modern science and technology, the impact of electromagnetic radiation on the environment is increasing. At the airport, flights are delayed due to electromagnetic wave interference; in hospitals, mobile phones often interfere with the normal work of various electronic medical instruments. In addition, electromagnetic radiation causes direct and indirect damage to the human body through thermal effects, non-thermal effects, and cumulative effects. Therefore, controlling electromagnetic pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08K13/02C08K3/36C08K3/04C08K5/521C08K3/38C08G18/76C08G18/48C08J9/28C08J9/08C08G101/00
CPCC08G18/48C08G18/7614C08G2101/00C08J9/0038C08J9/0066C08J9/0071C08J9/0095C08J9/08C08J9/28C08J2201/0524C08J2203/02C08J2375/08
Inventor 张猛
Owner 张猛
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