Graphene polyurethane composite sponge material as well as preparation method and application thereof

A composite sponge and polyurethane technology, applied in the field of graphene-polyurethane composite sponge material and its preparation, can solve the problems of complex preparation process, poor adsorption capacity, narrow application field, etc., and achieves strong adsorption effect, easy industrialized implementation, and simple operation. Effect

Pending Publication Date: 2022-01-11
深圳前海石墨烯产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the existing graphene sponge material has either high cost, complex preparation process, or narrow application field and poor adsorption capacity

Method used

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  • Graphene polyurethane composite sponge material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The invention provides a kind of preparation method of graphene polyurethane composite sponge material, comprises the following steps:

[0024] a. Weigh each raw material according to the following weight percentages, 0.05-0.14% of stannous octoate, 0.09-0.26% of triethylenediamine, 0.19-0.55% of mercaptoethanol, 0.20-0.60% of silicon-containing surfactant, and 0.50-0.50% of graphene oxide 2.00%, water 0.90-2.70%, 1,4-butanediol 1.67-5.01%, toluene diisocyanate 13.70-41.11%, polyether polyol 46.74-86.81%;

[0025] b. Ultrasonic dispersion of graphene oxide in water and 1,4-butanediol solution for 20-35 minutes to make it evenly dispersed and obtain GO dispersion;

[0026] c. Add mercaptoethanol to the GO dispersion and stir magnetically at 85-90°C for 30-35 minutes to obtain a modified GO dispersion;

[0027] d. Add polyether polyol to the modified GO dispersion, stir to disperse evenly, then add silicon-containing surfactant and stir until milky white, then add stanno...

Embodiment 1

[0037] Embodiment 1 adopts the inventive method to prepare graphene to filter polyurethane composite sponge material

[0038] The specific operation steps are as follows:

[0039] (1) The preparation raw materials include the following parts according to the mass percentage

[0040] Stannous octoate 0.09%

[0041] Triethylenediamine 0.17%

[0042] Mercaptoethanol 0.32%

[0043] Silicone Surfactant 0.40%

[0044] Graphene Oxide 1.09%

[0045] Water 1.78%

[0046] 1,4 Butanediol 3.29%

[0047] Toluene diisocyanate 27.03%

[0048] Polyether polyol 65.85%;

[0049] (2) Graphene oxide is ultrasonically dispersed in water and 1,4-butanediol solution for 20 minutes to make it evenly dispersed to obtain a GO dispersion;

[0050] (3) Add mercaptoethanol to the GO dispersion and stir magnetically at 85°C for 30 min to obtain the modified GO dispersion.

[0051] (4) Add polyether polyol SEP~560D to GO dispersion, mechanically stir to disperse evenly, then add silicon-containing...

Embodiment 2

[0053] Embodiment 2 adopts the inventive method to prepare graphene to filter polyurethane composite sponge material

[0054] Graphene filters the preparation method of polyurethane composite sponge material, comprises the steps:

[0055] The only difference from Example 1 is that the proportion of graphene oxide is 0.50%.

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Abstract

The invention belongs to the technical field of air filtration, and particularly relates to a graphene polyurethane composite sponge material as well as a preparation method and application thereof. Aiming at the problems of high cost, complex preparation process, narrow application field and poor adsorption capacity of the existing graphene sponge material, the invention provides the preparation method of the graphene polyurethane composite sponge material. Mercaptoethanol is used as an oxidizing agent for oxidizing and reducing graphene dispersion liquid, and graphene oxide is obtained; and the prepared functional group property better conforming to air filtration is reduced, the agglomeration reaction is reduced, and the air filtration and adsorption effects are stronger. Meanwhile, the graphene sponge is prepared by adopting a one-step foaming method, and a graphene dispersion liquid can be added in the sponge foaming process, so that the graphene is effectively prevented from falling off. The preparation method is simpler and more convenient to operate, and the graphene polyurethane composite sponge material is higher in surface stability, higher in air filtration and adsorption effect and easier to implement industrially.

Description

technical field [0001] The invention belongs to the technical field of air filtration, and in particular relates to a graphene-polyurethane composite sponge material and its preparation method and application. Background technique [0002] With the development of modern industry, human activities are becoming more and more frequent, and the gases and particles such as formaldehyde, sulfur dioxide, ammonia, nitric oxide, heavy metals, and oils produced pose a great threat to human living environment and body. As a physical and chemical method, adsorption method is one of the important methods in air filtration. It has the advantages of low cost, high filtration efficiency, no secondary pollution, and easy regeneration. [0003] As a new type of material in the 21st century, graphene has very broad application prospects due to its excellent mechanical, thermal and electrical properties. To use graphene in practice, it needs to be attached to other materials. Graphene has an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08K9/04C08K3/04C08L75/08B01D39/04B01D46/30B01D53/04B01J20/30B01J20/26B01J20/28C02F1/28C02F101/20C08G101/00
CPCC08G18/6674C08G18/48C08G18/3206C08K9/04C08K3/042B01J20/262B01J20/20B01J20/28045B01D39/04B01D46/30C02F1/285C02F1/283B01D53/04C02F2101/20B01D2257/708C08G2110/0083C08G2101/00C08L75/08
Inventor 王志强梁迪思张浩轩潘登侯伟盛
Owner 深圳前海石墨烯产业有限公司
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