Polyurethane-ferrite composite flame-retardant wave-absorbing porous material and preparation method thereof

A technology of composite flame retardant and porous materials, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of large size and complex production process, and achieve the effects of stable electrical properties, simple preparation process and good electrical conductivity

Inactive Publication Date: 2018-04-03
HENAN HAINADE NEW MATERIAL CO LTD
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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] The embodiment of the present invention provides a polyurethane ferrite composite flame-retardant wave-absorbing porous material, which is obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 20 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 carboxyl multi-walled carbon nanotubes, 10 parts of ferrite, 1 part of silicon carbide, 2 parts of zinc borate, suboctanoic acid 0.02 parts of tin, 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 polyurethane ferrite composite flame-retardant wave-absorbing porous material, which includes the following steps:

[0021] Mixing of raw materials: the above mass parts, polyether polyol, dimethyl methyl phosphate, nano-carbon sol, nano-s...

Embodiment 2

[0028] The embodiment of the present invention provides a polyurethane ferrite composite flame-retardant wave-absorbing porous material obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 30 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 methyl phosphate, 4 parts of carboxy multi-walled carbon nanotubes, 13 parts of ferrite, 2 parts of silicon carbide, 4 parts of zinc borate, 0.08 stannous octoate 0.12 parts of triethylenediamine, 1 part of silicone surfactant, 4 parts of sodium bicarbonate.

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

[0030] Reactive foaming: the room temperature foaming time in this step is 60 minutes;...

Embodiment 3

[0035]The embodiment of the present invention provides a polyurethane ferrite composite flame-retardant wave-absorbing porous material, which is obtained by polymerization of the following components by mass: 100 parts of polyether polyol, 40 parts of toluene diisocyanate, and 0.2 part of nano-carbon sol , 0.35 parts of nano-silica, 15 parts of deionized water, 15 parts of dimethyl phosphate, 6 parts of carboxy multi-walled carbon nanotubes, 15 parts of ferrite, 3 parts of silicon carbide, 5 parts of zinc borate, suboctanoic acid 0.2 parts of tin, 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 polyurethane ferrite composite flame-retardant wave-absorbing porous material, which is basically the same as the preparation method provided in Example 1, except that:

[0037] Reactive foaming: the room temperature foaming time in this step is 60...

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Abstract

The invention provides a polyurethane-ferrite composite flame-retardant wave-absorbing porous material. The porous material is prepared from 100 parts by mass of polyether polyol, 20 to 70 parts by mass of toluene diisocyanate, 0.05 to 0.4 parts by mass of nanometer carbon sol, 0.2 to 0.5 parts by mass of nano-white carbon black, 10 to 20 parts by mass of deionized water, 5 to 25 parts by mass ofdimethyl methylphosphate, 2 to 10 parts by mass of carboxyl multi-walled carbon nanotubes, 10 to 20 parts by mass of ferrite, 1 to 5 parts by mass of silicon carbide, 2 to 8 parts by mass of zinc borate, 0.02 to 0.4 parts by mass of stannous octoate, 0.03 to 0.6 parts by mass of triethylenediamine, 0.2 to 3 parts by mass of an organosilicone surfactant and 2 to 8 parts by mass of sodium bicarbonate through polymerization. The polyurethane ferrite composite flame-retardant and wave-absorbing porous material has the characteristics of low smoke, low toxicity, flame retardancy and wide absorptionfrequency of absorbed waves. The invention also provides a preparation method of the polyurethane-ferrite composite flame-retardant wave-absorbing porous material.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a polyurethane ferrite composite flame-retardant wave-absorbing porous material 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 pollution and finding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08J9/08C08K13/04C08K7/24C08K5/521C08K3/38C08K3/04C08K3/36C08K3/22C09K3/00
CPCC08G18/48C08G2101/00C08J9/08C08J2203/02C08J2375/08C08K3/04C08K3/22C08K3/36C08K3/38C08K5/521C08K7/24C08K13/04C08K2003/2272C08K2003/387C08K2201/001C08K2201/011C09K3/00
Inventor 程相林温毓敏王心超
Owner HENAN HAINADE NEW MATERIAL CO LTD
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