Preparation method of hyperbranched flame retardant and its application in wood-based panels
A flame retardant and wood-based panel technology, applied in the field of flame retardants, can solve the problems of high toxicity of HX gas, large smoke generation, secondary pollution, etc., to increase the flame retardant effect, increase the char formation rate, and reduce the amount of addition Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach 1
[0042] (1) Accurately weigh succinic anhydride with an electronic balance, measure a certain amount of N,N-dimethylacetamide (DMAc), put it in a capacity beaker, and dissolve it fully. Add diethanolamine into the three-necked flask, and stir well. Drop fully dissolved succinic anhydride into a three-necked flask, and react at room temperature for 3 hours to obtain AB 2 monomer.
[0043] (2) Add toluene to the above system first, weigh trimethylolpropane, dissolve it fully with a small amount of DMAc, then add it into a three-necked flask, then add p-toluenesulfonic acid, heat to 130°C to reflux, and condense spherically There is reflux in the tube, and the heat preservation reaction is 7-8h.
[0044](3) Weigh an appropriate amount of succinic anhydride to dissolve it, add it to the above system, then add p-toluenesulfonic acid, heat to 90° C. and keep it warm for 7-8 hours to obtain a carboxyl-terminated hyperbranched polymer.
[0045] (4) Weigh an appropriate amount of amm...
Embodiment approach 2
[0048] (1) Accurately weigh succinic anhydride with an electronic balance, measure a certain amount of N,N-dimethylacetamide (DMAc), put it in a capacity beaker, and dissolve it fully. Add diethanolamine into the three-necked flask, and stir well. Drop fully dissolved succinic anhydride into a three-necked flask, and react at room temperature for 3 hours to obtain AB 2 monomer.
[0049] (2) Add toluene to the above system first, weigh trimethylolpropane, dissolve it fully with a small amount of DMAc, then add it into a three-necked flask, then add p-toluenesulfonic acid, heat to 130°C to reflux, and condense spherically There is reflux in the tube, and the heat preservation reaction is 7-8h.
[0050] (3) Weigh an appropriate amount of succinic anhydride to dissolve it, add it to the above system, then add p-toluenesulfonic acid, heat to 90° C. and keep it warm for 7-8 hours to obtain a carboxyl-terminated hyperbranched polymer.
[0051] (4) Weigh an appropriate amount of am...
Embodiment approach 3
[0054] (1) Accurately weigh succinic anhydride with an electronic balance, measure a certain amount of N,N-dimethylacetamide (DMAc), put it in a capacity beaker, and dissolve it fully. Add diethanolamine into the three-necked flask, and stir well. Drop fully dissolved succinic anhydride into a three-necked flask, and react at room temperature for 3 hours to obtain AB 2 monomer.
[0055] (2) Add toluene to the above system first, weigh trimethylolpropane, dissolve it fully with a small amount of DMAc, then add it into a three-necked flask, then add p-toluenesulfonic acid, heat to 130°C to reflux, and condense spherically There is reflux in the tube, and the heat preservation reaction is 7-8h.
[0056] (3) Weigh an appropriate amount of succinic anhydride to dissolve it, add it to the above system, then add p-toluenesulfonic acid, heat to 90° C. and keep it warm for 7-8 hours to obtain a carboxyl-terminated hyperbranched polymer.
[0057] (4) Weigh an appropriate amount of am...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More