Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for adsorbing styrene by using graphene functional non-woven fabric

A technology of non-woven fabrics and graphene functions, which is applied in the fields of functional polymer materials and environmental protection. It can solve the problems of graphene adsorption of styrene agglomeration and difficult operation, poor adsorption performance of non-woven fabrics, etc., and achieve high surface modification efficiency. , wide range of use, good flexibility and air permeability

Inactive Publication Date: 2017-09-15
TIANJIN POLYTECHNIC UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems in non-woven fabric self-adsorption performance is relatively poor, graphene adsorbed styrene is easy to agglomerate and difficult to operate and surface modification technology, proposes a kind of method of graphene functionalized non-woven fabric adsorbed styrene, the method has Good adsorption performance, easy recycling, no secondary pollution, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for adsorbing styrene by using graphene functional non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] a. Preparation of graphene-functionalized polypropylene nonwoven fabric

[0021] (1) The polypropylene non-woven fabric is ultrasonically treated in an ethanol solution for 1 h, soaked and washed with deionized water;

[0022] (2) Prepare 200 mL of graphene alcohol water (50:50 (V / V)) dispersion with a concentration of 0.25 mg / mL, then add 0.8 g of dopamine, 0.9128 g of ammonium persulfate, 267 μL of ethylenediamine, and then add 0.5 g The treated polypropylene non-woven fabric was stirred and reacted at room temperature for 50 minutes, the non-woven fabric was taken out, washed with water, and dried at 60°C to obtain a graphene-functionalized polypropylene non-woven fabric with a loading capacity of 8.3%.

[0023] b. Dynamic adsorption application of styrene gas

[0024] (1) Use the attached figure 1 The styrene dynamic adsorption device shown is used for adsorption, and 0.316g of graphene-functionalized polypropylene non-woven fabric is cut into pieces and evenly lo...

Embodiment 2

[0027] a. Preparation of graphene-functionalized polyester nonwoven fabric

[0028] (1) ultrasonically treat the polyester non-woven fabric in ethanol solution for 1 h and soak and wash it with deionized water;

[0029] (2) Prepare 200 mL of graphene alcohol water (50:50 (V / V)) dispersion with a concentration of 1 mg / mL, then add 0.8 g of dopamine, 0.9197 g of potassium persulfate, 415 μL of 1,4-butylene diamine, and then Add 0.5 g of the treated polyester non-woven fabric, stir and react at room temperature for 50 minutes, take out the non-woven fabric, wash it, and dry it at 60 ° C to obtain a graphene-functionalized polyester non-woven fabric with a loading capacity of 12.4%.

[0030] b. Dynamic adsorption application of styrene gas

[0031] (1) Use the attached figure 1 The styrene dynamic adsorption device shown is used for adsorption, and 0.2056 g of graphene-functionalized polyester non-woven fabric is cut into pieces and evenly loaded into the adsorption column. The...

Embodiment 3

[0034] a. Preparation of graphene-functionalized polyethylene nonwoven fabric

[0035] (1) ultrasonically treat polyethylene non-woven fabric in ethanol solution for 1 h and soak and wash with deionized water;

[0036] (2) Prepare 200 mL of graphene alcohol water (50:50 (V / V)) dispersion with a concentration of 3 mg / mL, then add 0.4 g of dopamine, 0.6846 g of ammonium persulfate, and 431 μL of diethylenetriamine, and then add 1 g of The polyethylene non-woven fabric that has been processed was stirred and reacted at room temperature for 30 minutes, the non-woven fabric was taken out, washed with water, and dried at 60°C to obtain a graphene-functionalized polyethylene non-woven fabric with a loading capacity of 5.8%.

[0037] b. Dynamic adsorption application of styrene gas

[0038] (1) Use the attached figure 1 The styrene dynamic adsorption device shown is used for adsorption, and 0.3342 g of graphene-functionalized polyethylene non-woven fabric is cut into pieces and even...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for adsorbing styrene by using a graphene functional non-woven fabric, relates to preparation and application of the graphene functional non-woven fabric, and belongs to the technical field of functional polymer materials and environmental protection. The method particularly comprises the following steps: carrying out surface modification on a non-woven fabric by using dopamine, meanwhile, adsorbing and embedding graphene to the surface of the non-woven fabric, and washing and drying the non-woven fabric to obtain the graphene functional non-woven fabric; and then filling an adsorbing column with the graphene functional non-woven fabric, and adsorbing styrene gas dynamically. Modification conditions are gentle, the polymerization speed is high, the modification time is shortened remarkably, and the surface modification efficiency is improved; the shortcoming of agglomeration of graphene is overcome, the problem that a graphene adsorbing agent easily blocks a pipeline, is operated difficultly and the like is solved, and the adsorption capacity of the non-woven fabric to the styrene is improved remarkably; and meanwhile, the method for adsorbing the styrene by using the graphene functional non-woven fabric has the advantages of simple process, low cost, low requirements on equipment, wide application range and the like, and has wide industrial application prospect.

Description

(1) Technical field [0001] The invention relates to the technical field of functional polymer materials and environmental protection, in particular to a method for absorbing styrene by graphene functionalized non-woven fabrics. (2) Background technology [0002] Volatile organic compounds (VOCs) are an important part of air pollution. They have a wide range of sources, a variety of types, are harmful to human health and the ecological environment, and are difficult to deal with, which has attracted the attention of more and more researchers. Styrene is a typical VOCs pollutant. At the same time, styrene is the main raw material for synthetic rubber and plastics. It is widely used as a monomer in resins, coatings, textile matrix materials and other fields. Styrene in production and life can easily enter the air through various channels, causing environmental pollution and seriously threatening human health. Styrene can cause serious damage to multiple systems and organs such...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D53/02
CPCB01J20/20B01D53/02B01D2257/7027B01D2257/708B01J20/261
Inventor 王会才孙强杨继斌刘霞平齐天翔
Owner TIANJIN POLYTECHNIC UNIV