Graphene grafted nitrogen, phosphorus and silicon synergistic halogen-free flame retardant and preparation method thereof
A technology of grafted graphite and flame retardants, applied in the field of flame retardants, can solve the problems of affecting material processing performance and mechanical properties, secondary pollution, low flame retardant efficiency, etc., achieve good application prospects, less smoke production, Inexpensive effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0026] Place a 500ml three-necked flask in constant temperature water at 50°C, then add 40ml of distilled water, 10ml of isopropanol, 2ml of acetonitrile, 10ml of triethylamine and 2ml of tetraethylammonium hydroxide into the three-necked flask in sequence, stir at a medium speed, and mix uniform. 80 g of 3-aminopropyltriethoxysilane was added dropwise to the mixture, and the mixture was reacted under constant temperature reflux at 50° C. for 12 h. After the reaction was completed, the above reaction solution was distilled under reduced pressure, and a large amount of white solids were precipitated upon standing still. It was filtered under reduced pressure, washed with acetone, and finally extracted with methanol. Vacuum drying finally gave the yellow solid product octaaminopropyl cage silsesquioxane, namely the reaction intermediate product 1.
[0027] Take 500 mg of graphene oxide and add it into 500 ml of tetrahydrofuran, and ultrasonically disperse for 1 h. The dispers...
Embodiment 2
[0030]Place a 500ml three-necked flask in constant temperature water at 60°C, then add 60ml of distilled water, 20ml of isopropanol, 2ml of acetonitrile, 10ml of triethylamine and 2ml of tetraethylammonium hydroxide into the three-necked flask in sequence, stir at a medium speed, and mix uniform. 100 g of 3-aminopropyltriethoxysilane was added dropwise to the mixture, and the mixture was reacted under constant temperature reflux at 60° C. for 24 h. After the reaction was completed, the above reaction solution was distilled under reduced pressure, and a large amount of white solids were precipitated upon standing still. It was filtered under reduced pressure, washed with acetone, and finally extracted with methanol. Vacuum drying finally gave the yellow solid product octaaminopropyl cage silsesquioxane, namely the reaction intermediate product 1.
[0031] Take 500 mg of graphene oxide and add it into 500 ml of tetrahydrofuran, and ultrasonically disperse for 1 h. The dispers...
Embodiment 3
[0034] Place a 500ml three-necked flask in constant temperature water at 65°C, then add 80ml of distilled water, 30ml of isopropanol, 2ml of acetonitrile, 10ml of triethylamine and 2ml of tetraethylammonium hydroxide into the three-necked flask in sequence, stir at a medium speed, and mix uniform. 120 g of 3-aminopropyltriethoxysilane was added dropwise to the mixture, and the mixture was reacted under constant temperature reflux at 65° C. for 36 h. After the reaction was completed, the above reaction solution was distilled under reduced pressure, and a large amount of white solids were precipitated upon standing still. It was filtered under reduced pressure, washed with acetone, and finally extracted with methanol. Vacuum drying finally gave the yellow solid product octaaminopropyl cage silsesquioxane, namely the reaction intermediate product 1.
[0035] Add 1 g of graphene oxide into 500 ml of tetrahydrofuran, and ultrasonically disperse for 1 h. The dispersion was transf...
PUM
Login to view more Abstract
Description
Claims
Application Information
Login to view more - R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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