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

Sandwich organic/inorganic hybridized microspheres and preparation method thereof

A sandwich type, hybrid microsphere technology, applied in the field of new materials, to achieve the effect of uniform size, enhanced bonding firmness, and good dispersion

Inactive Publication Date: 2019-02-12
ZHENGZHOU UNIV
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are no domestic invention patents that can not only enhance the force between silica nanoparticles and polystyrene microspheres, but also maintain the good dispersion of composite microspheres

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
  • Sandwich organic/inorganic hybridized microspheres and preparation method thereof
  • Sandwich organic/inorganic hybridized microspheres and preparation method thereof
  • Sandwich organic/inorganic hybridized microspheres and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) Preparation of soft-core / hard-shell PS microspheres: Measure 8mL styrene, add it dropwise to 120mL deionized water, blow in high-purity nitrogen gas and stir for 30min, heat to 70°C, then add 14mL containing 0.16g persulfuric acid Potassium deionized aqueous solution was used as an initiator, stirred at 70°C for 4 h, and then 1.8 mL of divinylbenzene was added to the above system to continue the reaction for 24 h to obtain soft-core / hard-shell PS microspheres with a diameter of 250 nm.

[0023] 2) Raspberry-like PS / SiO 2 Preparation of composite microspheres: Take 0.5 g of PS microspheres prepared in step 1) and ultrasonically disperse them in 160 mL of ethanol, then add 1 mL of tetraethyl orthosilicate to the above solution and stir for 30 min, then add 20 mL of ammonia water dropwise and continue stirring After 10h, a raspberry-like PS / SiO will be obtained 2 The composite microsphere emulsion is dried after centrifugation.

[0024] 3) Sandwich type PS / SiO 2 / PDA...

Embodiment 2

[0027] 1) Preparation of soft-core / hard-shell polystyrene (PS) microspheres: Measure 8 mL of styrene, add it dropwise to 120 mL of deionized water, blow in high-purity nitrogen gas and stir for 30 minutes, heat to 70°C, and then add 14 mL A deionized aqueous solution containing 0.12 g of potassium persulfate was used as an initiator, stirred at 70°C for 4 h, and then 1.8 mL of divinylbenzene was added to the above system to continue the reaction for 24 h to obtain a soft-core / hard-shell PS with a diameter of 280 nm. Microspheres.

[0028] 2) Raspberry-like PS / SiO 2 Preparation of composite microspheres: according to Example 1.

[0029] 3) Sandwich type PS / SiO 2 Preparation of / PDA composite microspheres: Carry out according to Example 1.

Embodiment 3

[0031] 1) Preparation of soft-core / hard-shell polystyrene (PS) microspheres: Measure 8 mL of styrene, add it dropwise to 120 mL of deionized water, blow in high-purity nitrogen gas and stir for 30 minutes, heat to 70°C, and then add 14 mL A deionized aqueous solution containing 0.08 g of potassium persulfate was used as an initiator, stirred at 70°C for 4 h, and then 1.8 mL of divinylbenzene was added to the above system to continue the reaction for 24 h to obtain a soft-core / hard-shell PS with a diameter of 320 nm. Microspheres.

[0032] 2) Preparation of PS / PDA composite microspheres: according to Example 1.

[0033] 3) Sandwich type PS / SiO 2 Preparation of / PDA composite microspheres: Carry out according to Example 1.

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 belongs to the field of novel materials, and particularly relates to sandwich organic / inorganic hybridized microspheres and a preparation method thereof. The sandwich polystyrene / silicondioxide / polydopamine organic / inorganic hybridized microspheres are prepared by adopting cross-linked soft core / hard shell polystyrene microspheres as a template and successively performing hydrolysisof tetraethyl orthosilicate on the surface of microspheres and polymerization of dopamine on the surface of the microspheres. The sandwich organic / inorganic hybridized microspheres prepared by adopting the preparation method of the invention have the characteristics of uniform size, good dispersity, capability of adjusting the thickness of each layer, different chemical components of all layers and the like and have high innovation in the aspect of hybridized microspheres preparation.

Description

technical field [0001] The invention belongs to the field of new materials, in particular to a sandwich organic / inorganic hybrid microsphere and a preparation method thereof. Background technique [0002] Due to the broad application prospects in the fields of catalysis, drug sustained release, biomarkers, energy, and sewage treatment, the design and synthesis of polymer microspheres of various sizes has attracted increasing attention. The introduction of different functional groups such as carboxyl, hydroxyl, amino and mercapto groups on the surface of the microspheres can not only improve the stability of the polymer microspheres, but also improve the biocompatibility of the microspheres, expand the use of microspheres and field. However, due to the poor thermal stability, wear resistance and weather resistance of polymer microspheres, it is difficult for single-component polymer microspheres to meet the application requirements of multiple fields. If the groups on the s...

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): B01J13/22C08F212/08C08F212/36C08G73/06
CPCB01J13/22C08F212/08C08G73/0672C08F212/36
Inventor 陈志民王瑞娟冯磊杨瑞华孟迪陈永方明明付建伟陈加福
Owner ZHENGZHOU 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