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

Polystyrene nanoparticle adsorbed on mica sheet surface and preparation method thereof

The technology of polystyrene nanometer and polystyrene solution is applied in the field of preparation of polystyrene nanoparticle, which can solve the problems of complex process and achieve the effects of simple operation process, good industrial application prospect and good reproducibility.

Inactive Publication Date: 2012-05-02
TIANJIN UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing methods either have complex processes or require special processing equipment

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
  • Polystyrene nanoparticle adsorbed on mica sheet surface and preparation method thereof
  • Polystyrene nanoparticle adsorbed on mica sheet surface and preparation method thereof
  • Polystyrene nanoparticle adsorbed on mica sheet surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, high-purity toluene solvent was obtained by secondary distillation, and a certain amount of polystyrene with a molecular weight of 570,000 g / mol and a distribution width index of 1.025 was weighed and dissolved in toluene to form a concentration of 0.01% g / mol. ml of polystyrene solution and let it stand for about a week. Take a mica sheet with a thickness of 0.25nm, and then use scotch tape to remove the mica sheet and use scotch tape to remove the surface layer of the mica sheet matrix to obtain a flat and smooth surface. Drop 1 drop of the solution on the mica sheet, and then spin-coat the polystyrene solution on the surface of the clean mica sheet substrate by spin coating. The rotation speed and time of the first stage of spin coating are respectively 300 rpm and 10 seconds; The second stage is 2000 rpm, 60 seconds. Carefully take out the coated mica sheet with tweezers (clamp the edge), put it face up into a washed and dried petri dish, seal and dry for 24...

Embodiment 2

[0025] First, adopt the method of secondary distillation to obtain high-purity dichloromethane solvent, weigh a certain amount of molecular weight and be 570000g / mol, polystyrene with a distribution width index of 1.025, dissolve it in dichloromethane, and form a concentration of 0.005% g / ml polystyrene solution, let stand for about a week. Take a mica sheet with a thickness of 0.35nm, and then use scotch tape to remove the mica sheet and use scotch tape to remove the surface layer of the mica sheet matrix to obtain a flat and smooth surface. Drop 2 drops of solution on the mica sheet, and then spin-coat the polystyrene solution on the surface of the clean mica sheet substrate by spin coating. The rotational speed and time of the first stage of spin coating are respectively 350 rpm and 12 seconds; The second stage is 2500 rpm, 80 seconds. Carefully take out the coated mica sheet with tweezers (clamp the edge), put it face up into a washed and dried petri dish, seal and dry fo...

Embodiment 3

[0027] First, adopt the method of secondary distillation to obtain high-purity trichloromethane solvent, take a certain amount of molecular weight and be 570000g / mol, the polystyrene that the distribution width index is 1.025, it is dissolved in the trichloromethane, the formation concentration is 0.0005% g / ml polystyrene solution, let stand for about a week. Take a mica sheet with a thickness of 0.5nm, and then use scotch tape to remove the mica sheet and use scotch tape to remove the surface layer of the mica sheet matrix to obtain a flat and smooth surface. Drop 1 drop of solution on the mica sheet, and then spin-coat the polystyrene solution on the surface of the clean mica sheet substrate by spin coating. The rotation speed and time of the first stage of spin coating are respectively 400 rpm and 14 seconds; The second stage is 3000 rpm, 90 seconds. Carefully take out the coated mica sheet with tweezers (clamp the edge), put it face up into a washed and dried petri dish, ...

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
The average diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a polystyrene nanoparticle adsorbed on the mica sheet surface. The preparation method of the polystyrene nanoparticle comprises the following steps: 1, dissolving polystyrene of different molecular weights in a solvent to form a polystyrene solution with the concentration of 0.0005-0.01% g / ml, and removing the mica sheet matrix surface; 2, preparing a polystyrene nanoparticle with the average diameter of 80-190nm and the average height of 7-18nm on the mica sheet surface through a spin coating process; and 3, putting the prepared sample in a washed and dried culture dish, carrying out seal drying for 24-48h, and transferring the sample to a vacuum drier to preserve it. The dimension distribution of the nanoparticle is uniform; and the preparation method has the advantages of simple operation technology, good controllability, low cost, no need of complex chemical treatments, and no need of expensive equipment.

Description

technical field [0001] The invention relates to a preparation method of polystyrene nanoparticles adsorbed on the surface of mica sheets. The invention adopts the mica sheet as a substrate, and forms polystyrene nanoparticles with different particle sizes on the surface of the mica sheet by a spin coating method. Background technique [0002] Based on the important application value of nano-polymer materials, the research on their preparation methods and properties is a hot spot in current material science research. Nanopolymers refer to polymers with at least one dimension within 100 nm, including spherical, linear, tubular, rod, layered and other structures. As an important part of nanopolymer materials, polymer nanoparticles have high specific surface area, stable morphological structure, good processing performance, and are easy to be modified by chemical or physical methods, so that they have small size effect, In addition to the surface effect and quantum tunneling e...

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): C08L25/06C08J3/12
Inventor 黄定海陈荣曹铖
Owner TIANJIN 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