Flame-retardant finishing agent for pure cotton fabric and preparation method thereof
A flame retardant finishing agent, technology for pure cotton fabrics, applied in the direction of flame retardant fibers, fiber treatment, plant fibers, etc., can solve the problem of unstable hydrolysis of boron-containing flame retardants, poor flame retardancy of nitrogen-containing flame retardants, etc. problem, to achieve the effect of good flame retardant effect, good film-forming performance, and strong water-washing performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0025] A preparation method of a flame retardant finishing agent for pure cotton fabrics, comprising the following steps:
[0026] (1) Dissolve chitosan in water, add Na 2 CO 3 Adjust the pH to 9, then control the temperature to 0°C, add phosphorus oxychloride, carry out ultrasonic treatment for 30 minutes, remove water by distillation under reduced pressure, add dichloromethane, heat to 60°C, stir and mix uniformly, add Dicyandiamide was reacted for 6 hours, then lowered to room temperature, and dichloromethane was distilled off to obtain a flame retardant. The molar ratio of chitosan and phosphorus oxychloride was 5:2; The molar ratio of methane used is 2:1;
[0027] (2) adding the mixture of poly-1,4-butanediol adipate diol, polyoxypropylene tetraol, polytetrahydrofuran diol and methylcyclohexyl diisocyanate, triethanolamine and triethylamine into the reactor, Heating, maintaining the temperature at 110 °C, stirring at a speed of 40 rpm, adding acetone, sodium 1,2-dihydr...
Embodiment 2
[0034] A preparation method of a flame retardant finishing agent for pure cotton fabrics, comprising the following steps:
[0035] (1) Dissolve chitosan in water, add Na 2 CO 3 Adjust the pH to 11, then control the temperature to 4°C, add phosphorus oxychloride, carry out ultrasonic treatment for 60 minutes, remove water by distillation under reduced pressure, add dichloromethane to it, heat to 80°C, stir and mix well, add Dicyandiamide, reacted for 7h, cooled to room temperature, distilled off dichloromethane to obtain a flame retardant, the molar ratio of chitosan and phosphorus oxychloride was 5:2; chitosan and dichloromethane The molar ratio of methane used is 2:1;
[0036] (2) adding the mixture of poly-1,4-butanediol adipate diol, polyoxypropylene tetraol, polytetrahydrofuran diol and methylcyclohexyl diisocyanate, triethanolamine and triethylamine into the reactor, Heating, maintaining the temperature at 120 °C, stirring at a speed of 60 rpm, adding acetone, sodium 1...
Embodiment 3
[0043] A preparation method of a flame retardant finishing agent for pure cotton fabrics, comprising the following steps:
[0044] (1) Dissolve chitosan in water, add Na 2 CO 3 Adjust the pH to 9, then control the temperature to 4°C, add phosphorus oxychloride, carry out ultrasonic treatment for 30 minutes, remove water by distillation under reduced pressure, add dichloromethane to it, heat to 80°C, stir and mix well, add Dicyandiamide was reacted for 6 hours, then lowered to room temperature, and dichloromethane was distilled off to obtain a flame retardant. The molar ratio of chitosan and phosphorus oxychloride was 5:2; The molar ratio of methane used is 2:1;
[0045] (2) adding the mixture of poly-1,4-butanediol adipate diol, polyoxypropylene tetraol, polytetrahydrofuran diol and methylcyclohexyl diisocyanate, triethanolamine and triethylamine into the reactor, Heating, maintaining the temperature at 120 °C, stirring at a speed of 40 rpm, adding acetone, sodium 1,2-dihyd...
PUM
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