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

Hydrophobic and oleophobic organic polysilazane and preparation method thereof

A polysilazane, hydrophobic and oleophobic technology, which is applied in the preparation of the polysilazane, in the field of hydrophobic and oleophobic organopolysilazane, can solve the problem that the potential application value of polysilazane has not been effectively developed, and achieves Excellent hydrophobicity and oleophobicity, the effect of a wide range of uses

Active Publication Date: 2022-05-10
江西信达航科新材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the potential application value of polysilazane is far from being effectively developed

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
  • Hydrophobic and oleophobic organic polysilazane and preparation method thereof
  • Hydrophobic and oleophobic organic polysilazane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a 500ml three-necked flask, add 150ml tetrahydrofuran and 60ml n-butyllithium (2.5mol / L), under nitrogen protection, mix 50ml tetrahydrofuran and 26.3g 2,2,3-trichlorobutanal at -78°C The solution was slowly added dropwise into the three-necked flask. After the dropwise addition, keep the low temperature and continue to stir for 2 hours, gradually raise the temperature to 20° C. and continue to stir for 10 hours to obtain a mixed solution.

[0023] Add 100ml of tetrahydrofuran and 48.4g of dimethyldichlorosilane into a 500ml three-necked flask, keep the system at -5°C in a low-temperature bath, slowly add the above mixed solution dropwise under nitrogen protection, and continue stirring for 3 hours at -5°C after the dropwise addition Afterwards, heat up to 20°C and continue stirring for 10 hours, let stand to separate layers, transfer the upper layer to another clean and dry 500ml three-neck flask under nitrogen protection, wash the precipitate three times with tetra...

Embodiment 2

[0028] In a 500ml three-necked flask, add 150ml tetrahydrofuran and 60ml n-butyllithium (2.5mol / L), under nitrogen protection, mix 50ml tetrahydrofuran and 26.3g 2,2,3-trichlorobutanal at -78°C The solution was slowly added dropwise into the three-necked flask. After the dropwise addition, keep the low temperature and continue to stir for 2 hours, gradually raise the temperature to 20° C. and continue to stir for 10 hours to obtain a mixed solution.

[0029] Add 100ml of tetrahydrofuran and 53.7g of methylethyldichlorosilane into a 500ml three-necked flask, keep the system at -5°C in a low-temperature bath, slowly add the above mixed solution dropwise under nitrogen protection, and continue stirring at -5°C for 3 After 1 hour, raise the temperature to 20°C and continue to stir the reaction for 10 hours, let stand to separate layers, and transfer the upper layer to another clean and dry 500ml three-neck flask under the protection of nitrogen, wash the precipitate three times wi...

Embodiment 3

[0034] In a 500ml three-necked flask, add 150ml tetrahydrofuran and 60ml n-butyllithium (2.5mol / L), under nitrogen protection, mix 50ml tetrahydrofuran and 26.3g 2,2,3-trichlorobutanal at -78°C The solution was slowly added dropwise into the three-necked flask. After the dropwise addition, keep the low temperature and continue to stir for 2 hours, gradually raise the temperature to 20° C. and continue to stir for 10 hours to obtain a mixed solution.

[0035] Add 100ml of tetrahydrofuran and 58.9g of methylpropyl dichlorosilane into a 500ml three-necked flask, keep the system at -5°C in a low-temperature bath, slowly add the above mixed solution dropwise under nitrogen protection, and continue stirring at -5°C for 3 After 1 hour, raise the temperature to 20°C and continue to stir the reaction for 10 hours, let stand to separate layers, and transfer the upper layer to another clean and dry 500ml three-neck flask under the protection of nitrogen, wash the precipitate three times ...

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
Strengthaaaaaaaaaa
Modulusaaaaaaaaaa
Water contact angleaaaaaaaaaa
Login to View More

Abstract

The invention relates to hydrophobic and oleophobic organic polysilazane and a preparation method thereof, in particular to a structure as shown in a formula (I). The polysilazane disclosed by the invention is designed and synthesized into a compound with a novel structure as shown in the formula (I), has the characteristics of hydrophobicity and oleophobicity, can be used for preparing high-performance materials such as ceramic coatings, fibers and the like, and is wide in application.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a hydrophobic and oleophobic organopolysilazane, and also relates to a preparation method of the polysilazane. Background technique [0002] Polysilazane is a series of compounds whose main chain has Si—N bond as the repeating unit. On the one hand, the Si—N bond has a relatively high thermal stability due to its large bond energy. On the other hand, the main chain of the molecule or The end of the molecule contains carbon-carbon triple bonds, so it can be cross-linked and cured at a certain temperature to obtain a thermosetting resin with good compactness, which further improves the heat resistance of the resin. therefore. Polysilazane as a ceramic precursor can be prepared into silicon nitride (Si3N4) and silicon carbon nitride (SixNyCz) ceramics, which have excellent properties such as high temperature resistance, wear resistance, and corrosion resistanc...

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): C08G77/62
CPCC08G77/62
Inventor 吴迪侯振华
Owner 江西信达航科新材料科技有限公司
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