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A kind of mofs modified polyurethane soft foam material and its preparation and application

A polyurethane soft foam and modification technology, applied in other chemical processes, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems such as fire or explosion accidents, environmental damage, property loss, etc., and achieve enhanced hydrophobicity and affinity Oily, high feasibility, simple steps effect

Active Publication Date: 2020-06-26
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What's more serious is that since most oil products and organic components are highly flammable, once a large area of ​​leakage encounters high temperature weather or encounters an open flame, it is very easy to cause a fire or even an explosion, resulting in serious casualties , property damage and environmental damage

Method used

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  • A kind of mofs modified polyurethane soft foam material and its preparation and application
  • A kind of mofs modified polyurethane soft foam material and its preparation and application
  • A kind of mofs modified polyurethane soft foam material and its preparation and application

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Experimental program
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Effect test

Embodiment 1

[0033] The preparation process in the embodiment of the present invention is to first chemically pretreat the surface of the polyurethane soft foam material, and then use the self-assembly method to coat the metal organic framework on the polyurethane soft foam material.

[0034] Please refer to figure 1 , the preparation method of the MOFs modified polyurethane soft foam material is as follows:

[0035] S1. Ultrasonic immerse polyurethane soft foam in ethanol solution for 20 minutes.

[0036] S2, the polyurethane soft foam material processed through step S1 in 0.1M HNO 3 Immerse in the solution for 30min, take out the excess acid solution and wash it with deionized water.

[0037] S3. Soak the flexible polyurethane foam material treated in step S2 in a 1.0% (mass percent) sodium polyacrylate solution with a pH value of 1 for 30 minutes, take out the excess solution and wash it with deionized water.

[0038] S4, 2.93g Zn(NO 3 ) 2 ·6H 2 O was dissolved in 300ml of deioniz...

Embodiment 2

[0050] The preparation method of the polyurethane soft foam material modified by MOFs is as follows:

[0051] S1. Ultrasonic immerse polyurethane soft foam in ethanol solution for 20 minutes.

[0052] S2, the polyurethane flexible foam material processed through step S1 in 0.3M HNO 3 Immerse in the solution for 30min, take out the excess acid solution and wash it with deionized water.

[0053] S3. Soak the flexible polyurethane foam material treated in step S2 in a 2.0% (mass percent) sodium polyacrylate solution with a pH value of 1 for 30 minutes, take out the excess solution and wash it with deionized water.

[0054] S4, 4.40g Zn(NO 3 ) 2 ·6H 2 O was dissolved in 300ml of deionized water to make a metal salt solution, and 9.74g of 2-methylimidazole was dissolved in 300ml of deionized water to make a ligand solution.

[0055] S5, the polyurethane soft foam material processed through step S3 is impregnated successively in Zn(NO 3 ) 2 Solution 1h, ethanol solution 5s, 2...

Embodiment 3

[0058] The preparation method of the polyurethane soft foam material modified by MOFs is as follows:

[0059] S1. Ultrasonic immerse polyurethane soft foam in ethanol solution for 20 minutes.

[0060] S2, the polyurethane flexible foam material processed through step S1 in 0.5M HNO 3 Immerse in the solution for 30min, take out the excess acid solution and wash it with deionized water.

[0061] S3. Soak the flexible polyurethane foam material treated in step S2 in a 3.0% (mass percent) sodium polyacrylate solution with a pH value of 1 for 30 minutes, take out the excess solution and wash it with deionized water.

[0062] S4, 9.96g Co(NO 3 ) 2 ·6H 2 O was dissolved in 500ml of deionized water to make a metal salt solution, and 13.12g of 2-methylimidazole was dissolved in 500ml of deionized water to make a ligand solution.

[0063] S5, the polyurethane soft foam material processed through step S3 is impregnated successively in Co(NO 3 ) 2 Solution 2h, ethanol solution 5s, ...

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Abstract

The invention relates to an MOFS modified polyurethane soft foam material as well as preparation and application thereof, and belongs to the field of organic polymer materials. The preparation methodcomprises the following steps: sequentially dipping a polyurethane soft foam material in a HNO3 solution and a sodium polyacrylate solution, and then sequentially dipping the polyurethane soft foam material in a metal nitrate solution and a nitrogen-containing heterocyclic organic compound ligand solution, and coating the surface of the polyurethane soft foam material with a metal organic framework through a self-assembling method to obtain the MOFS modified polyurethane soft foam material, the prepared MOFS modified polyurethane soft foam material has the characteristic of excellent flame retardancy and circular adsorbing of organic matters, and can be widely applied to the fields of oil-water separation and adsorption.

Description

technical field [0001] The invention relates to the field of organic polymer materials, in particular to a flexible polyurethane foam material modified by MOFs and its preparation and application. Background technique [0002] In recent years, with the rapid development of modern industry, oil spills and chemical spills have occurred frequently, causing water pollution and ecological environment damage. What's more serious is that since most oil products and organic components are highly flammable, once a large area of ​​leakage encounters high temperature weather or encounters an open flame, it is very easy to cause a fire or even an explosion, resulting in serious casualties , property damage and environmental damage. Therefore, there is an urgent need to develop an efficient, convenient and low-cost method to clean up oil spills and leaked chemicals, so as to minimize the possible losses caused by spills and better protect the environment and water sources. At present, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/36C08J9/40C08G83/00B01J20/26B01J20/30C02F1/28C08L75/04
Inventor 周克清赵思佳周倩倩刘昌坤
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)