Graphene/Ag-carbon microsphere aerogel coating and preparation method and application thereof

A technology of carbon microspheres and aerogels, which is applied in the direction of airgel preparation, chemical instruments and methods, coatings, etc., can solve the problems of poor anti-smog effect, achieve adsorption performance, improve anti-smog performance, Good anti-smog effect

Active Publication Date: 2018-05-18
江苏晨光涂料有限公司
View PDF10 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to overcome the relatively poor deficiencies of the anti-haze effect of existing coatings, and a kind of graphene / Ag-carbon microsphere airgel coating and its preparation method and application are provided

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
  • Graphene/Ag-carbon microsphere aerogel coating and preparation method and application thereof
  • Graphene/Ag-carbon microsphere aerogel coating and preparation method and application thereof
  • Graphene/Ag-carbon microsphere aerogel coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] Specifically, a kind of graphene / Ag-carbon microsphere airgel coating of the present invention is prepared by the following steps:

[0046] Step 1, preparation of nano Ag-carbon microspheres

[0047] Adding AgNO to the suspension of carbon microspheres with a mass concentration of 0.3-0.5% wt 3 solution to obtain a mixed solution, and the Ag in the mixed solution + The concentration is 1~1.5mol / L, the obtained carbon microspheres-AgNO 3 The mixed solution was stirred with a 180-220rpm magnetic rotor for 20-24h, then centrifuged at a speed of 2800-3000rpm for 10-15min to remove excess silver ions, and then the obtained nano-Ag-carbon microspheres were washed with distilled water and alcohol, and then washed again with After ultrasonic dispersion for 45-60 minutes, uniform nanometer Ag-carbon microspheres can be obtained. The carbon microspheres have a hollow structure with a specific surface area of ​​1800-2200 g / m 2 , the size of the nano-silver ions in the obtained...

Embodiment 1

[0060] A kind of preparation method of graphene / Ag-carbon microsphere airgel coating of the present embodiment, its preparation process schematic diagram and flow chart are as follows image 3 , Figure 4 As shown, it specifically includes the following steps:

[0061] (1) Preparation of carbon microspheres: using cellulose as a raw material, carbon microspheres were prepared by hydrothermal carbonization.

[0062] Specifically, weigh 0.8g of cellulose into a 20ml sample bottle, add 15mL of deionized water, stir magnetically for 30min at a speed of 30r / min, and disperse the cellulose evenly in the solution, then place it in a 25mL Inside the hydrothermal reactor. After sealing the hydrothermal reaction kettle, put it into a muffle furnace and keep it constant for 7 hours at 220°C, and then naturally cool it to room temperature in the muffle furnace. The substance in the lower layer of the hydrothermal reaction kettle was suction-filtered, washed with absolute ethanol and di...

Embodiment 2

[0070] A kind of preparation method of graphene / Ag-carbon microsphere airgel coating of the present embodiment, its preparation process schematic diagram and flow chart are as follows image 3 , Figure 4 As shown, it specifically includes the following steps:

[0071] (1) Preparation of carbon microspheres: using cellulose as a raw material, carbon microspheres were prepared by hydrothermal carbonization.

[0072] Specifically, weigh 0.8g of cellulose into a 20ml sample bottle, add 10mL of deionized water, stir magnetically at a speed of 40r / min for 20min, and disperse the cellulose evenly in the solution, then place it in a 25mL Inside the hydrothermal reactor. After sealing the hydrothermal reaction kettle, put it into a muffle furnace and keep it constant for 8 hours at 200°C, and then naturally cool it to room temperature in the muffle furnace. The substance in the lower layer of the hydrothermal reaction kettle was suction-filtered, washed with absolute ethanol and di...

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

PropertyMeasurementUnit
sizeaaaaaaaaaa
concentrationaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses graphene/Ag-carbon microsphere aerogel coating and a preparation method and application thereof and belongs to the technical field of new coating materials. The preparation method includes: preparing Ag-carbon microspheres, mixing the Ag-carbon microspheres with a AgNO3 solution, and performing stirring, centrifugal separation, washing and ultrasonic dispersing to obtain even nano Ag-carbon microspheres; adding graphene oxide into the nano Ag-carbon microsphere solution, adding 5-10wt% of cysteine, and stirring to obtain a hydrogel mixture; placing the hydrogel mixturein hot oil of 75-85 DEG C for 8-10 hours, washing, using a freeze drying method to perform post-processing to obtain graphene/Ag-carbon microsphere aerogel, adding the graphene/Ag-carbon microsphere aerogel serving as the additive into coating to obtain the graphene/Ag-carbon microsphere aerogel coating. The graphene/Ag-carbon microsphere aerogel coating is ultrahigh in VOCs adsorption performanceand self-degradation ability and good in haze resistance and has potential application prospect.

Description

technical field [0001] The invention belongs to the technical field of new coating materials, and more specifically relates to a graphene / Ag-carbon microsphere airgel coating and its preparation method and application. Background technique [0002] With the continuous growth of my country's national economy and the continuous improvement of people's living standards, environmental protection has become a main theme for people to pursue a healthy and green life. As people have higher and higher requirements for coatings for indoor and outdoor decoration, more and more people focus on anti-smog and environmental protection coatings in the process of choosing functional coatings. Forest-like fresh air", therefore, it is of great significance to research and develop coatings with anti-smog effect. [0003] Graphene is the thinnest and strongest material known to human beings. It contains a single layer of carbon atoms. These atoms are connected in a honeycomb arrangement. The t...

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): C09D7/61B01J13/00B01J20/20B01J20/30B01J20/28
CPCB01J13/0091B01J20/0233B01J20/20B01J20/28047B01J2220/42B01J2220/4806
Inventor 冒海燕李保松缪国元黄润州杨蕊兰平梅长彤周晓燕周定国储富强马宇飞
Owner 江苏晨光涂料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap