Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dopamine surface modified two-dimensional nano material and preparation method thereof

A technology of two-dimensional nanomaterials and surface modification, which is applied in fibrous fillers, dyed low-molecular organic compound treatment, dyed high-molecular organic compound treatment, etc., to achieve great scientific significance and increase compatibility

Inactive Publication Date: 2017-09-29
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 53 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bottleneck of current research is how to improve the dispersion of boron nitride in composite materials

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, 1.2114 g of tris was dissolved in 150 mL of deionized water, adjusted to pH=8.5 with dilute hydrochloric acid (1M), and stirred for 20 min. Then, 1 g of self-made molybdenum disulfide powder and 50 mL of pure ethanol were added to the above system for ultrasonic dispersion for 60 min. Finally, 0.4 g of dopamine hydrochloride was weighed and added to the mixed liquid, stirred rapidly for 10 minutes, controlled the temperature of the system at about 20° C., and reacted with stirring for 12 hours. Stop the reaction and centrifuge to obtain a black solid powder, which is washed three times with deionized water and ethanol, and freeze-dried. The obtained black solid powder is the two-dimensional molybdenum disulfide nanomaterial wrapped by polydopamine.

Embodiment 2

[0022] First, 2 g of tris was dissolved in 250 mL of deionized water, adjusted to pH=8.5 with dilute hydrochloric acid (1M), and stirred for 20 min. Then, 1 g of boron nitride white powder after ultrasonic stripping and 50 mL of pure ethanol were added to the above system for ultrasonic dispersion for 40 min. Finally, 0.8 g of dopamine hydrochloride was weighed and added to the mixed liquid, stirred rapidly for 10 minutes, controlled the temperature of the system at about 20° C., and reacted with stirring for 15 hours. Stop the reaction and centrifuge to obtain a black solid powder, which is washed three times with deionized water and ethanol, and freeze-dried. The obtained black solid powder is the polydopamine-wrapped boron nitride two-dimensional nanomaterial.

Embodiment 3

[0024] First, 1.2114 g of tris was dissolved in 150 mL of deionized water, adjusted to pH=8.5 with dilute hydrochloric acid (1M), and stirred for 20 min. Then, 0.8 g of homemade titanium carbide gray powder and 50 mL of pure ethanol were added to the above system for ultrasonic dispersion for 60 min. Finally, 0.4 g of dopamine hydrochloride was weighed and added to the mixed liquid, stirred rapidly for 10 minutes, controlled the temperature of the system at about 20° C., and reacted with stirring for 12 hours. Stop the reaction and centrifuge to obtain a black solid powder, which is washed three times with deionized water and ethanol, and freeze-dried. The obtained black solid powder is the two-dimensional titanium carbide nanomaterial wrapped by polydopamine.

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 relates to a dopamine surface-modified two-dimensional nanometer material and a preparation method. A two-dimensional nanometer material wrapped with polydopamine is prepared through a one-step reaction. The invention solves the problem of poor dispersion of traditional two-dimensional nanometer materials in interstitium (water, organic matter). This characteristic preparation method provides a method for modifying the surface of two-dimensional nanomaterials with dopamine. After the surface of two-dimensional nanomaterials is modified by dopamine, functional groups (hydroxyl and amino groups) are successfully introduced. Compatibility between matter and two-dimensional nanomaterials. Therefore, this invention has great scientific significance, and has great practical application value in the production of friction-resistant composite materials, lubricating grease, and heat-conducting composite materials.

Description

technical field [0001] The invention belongs to the technical field of composite materials and fine chemicals, and relates to a dopamine surface-modified two-dimensional nanometer material and a preparation method. Background technique [0002] Two-dimensional nanomaterials (molybdenum disulfide, tungsten disulfide, molybdenum diselenide, tungsten diselenide, titanium carbide, boron nitride) have always been a research hotspot for researchers due to their unique structures. Excellent performance in friction resistance, electromagnetic shielding and other fields. [0003] Many researchers at home and abroad know that two-dimensional nanomaterials have a graphene-like structure and exhibit excellent properties in terms of friction. Therefore, many researchers have combined two-dimensional nanomaterials with polymers and resins to prepare many composite materials, which show excellent performance in friction resistance. However, since two-dimensional nanomaterials are inorgan...

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
IPC IPC(8): C09C3/08C09C1/00C09C1/36C09C1/46C09C3/10
CPCC09C3/08C09C1/00C09C1/0003C09C1/36C09C1/46C09C3/10
Inventor 颜红侠张卫东齐暑华
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com