Preparation method of high-temperature-resistant flame-retardant polyimide modified melamine oil-absorbing foam
A polyimide, flame-retardant technology, which is applied in the field of polymer foam plastics, can solve the problems of narrow application field, high cost of foam itself, limited use of oil-absorbing materials, etc., and achieves high temperature resistance, high hydrophobicity and lipophilicity. , the effect of high flame retardancy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0051] The preparation method of the high temperature resistant flame retardant polyimide modified melamine oil-absorbing foam of the present invention, the detailed steps of the preparation method are as follows:
[0052] a. Using melamine and paraformaldehyde as raw materials, according to the molar ratio of melamine and paraformaldehyde 1:2.8, add 90.00 g of melamine and 60.00 g of paraformaldehyde into a three-necked flask equipped with mechanical stirring, condenser and thermometer for mixing, After mixing, add 51.50 g of deionized water as a solvent until the solid content of the mixed system is 74.44%, and add an aqueous sodium hydroxide solution with a concentration of 20% by mass to adjust the pH value of the mixed system to 9.5; then use an oil bath to heat up and react , control the reaction temperature to be 80-85°C, after the reaction system is clarified, continue to insulate and react at 80-85°C until the cloud point, and the reaction is completed; after the react...
Embodiment 2
[0059] The preparation method of the high temperature resistant flame retardant polyimide modified melamine oil-absorbing foam of the present invention, the detailed steps of the preparation method are as follows:
[0060] a. Using melamine and paraformaldehyde as raw materials, according to the molar ratio of melamine and paraformaldehyde of 1:2.5, 90.00 g of melamine and 53.57 g of paraformaldehyde were added into a three-necked flask equipped with mechanical stirring, condenser and thermometer for mixing, After mixing, add 61.50 g of deionized water as a solvent until the solid content of the mixed system is 70.0%, and add an aqueous sodium hydroxide solution with a concentration of 15% by mass to adjust the pH value of the mixed system to 9.3; then use an oil bath to heat up and react , control the reaction temperature to be 80-85°C, after the reaction system is clarified, continue to insulate and react at 80-85°C until the cloud point, and the reaction is completed; after ...
Embodiment 3
[0067] The preparation method of the high temperature resistant flame retardant polyimide modified melamine oil-absorbing foam of the present invention, the detailed steps of the preparation method are as follows:
[0068] a. Using melamine and paraformaldehyde as raw materials, according to the molar ratio of melamine and paraformaldehyde of 1:2.3, melamine 90.00g and paraformaldehyde 49.24g were added into a three-necked flask equipped with mechanical stirring, condenser and thermometer for mixing, After mixing, add 74.98 g of deionized water as a solvent until the solid content of the mixed system is 65.00%, and add an aqueous solution of sodium hydroxide with a concentration of 10% by mass to adjust the pH of the mixed system to 9.0; then use an oil bath to heat up and react , control the reaction temperature to be 80-85°C, after the reaction system is clarified, continue to insulate and react at 80-85°C until the cloud point, and the reaction is completed; after the reacti...
PUM
Property | Measurement | Unit |
---|---|---|
limiting oxygen index | aaaaa | aaaaa |
limiting oxygen index | aaaaa | aaaaa |
limiting oxygen index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com