A kind of flame retardant for polyurethane material and its preparation method and application
A technology of polyurethane material and flame retardant, which is applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of inability to meet application requirements, large amount of addition, poor process performance, etc., and achieve good mechanical properties. and process performance, improve dispersibility, improve the effect of compatibility
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] Preparation of flame retardant:
[0021] A. Preparation of coating agent prepolymer: Dehydrate 200g of PEG with number average molecular weight of 1000 at 120°C and pressure of -0.096MPa for 2 hours until the moisture content is 150ppm, cool to 40°C, add 420g of TDI, and then Heating up to 80°C, reacting for 2 hours, until the mass content of NCO% reaches 30%, discharge for later use;
[0022] B. Polyurethane coating modification: In a three-necked flask with stirring, add 2.5g sodium lauryl sulfate, 2.5g sodium alginate and 300g deionized water, heat to 80°C and stir to dissolve, cool to room temperature, Add the hydrotalcite (Mg 4 al 2 (OH) 12 CO 3 4H 2 O), the particle size is 200~300nm, stir and disperse at 1500rpm / min for 10min, then add 1.8g of BDO, 0.3g of catalyst T12, continue to stir and disperse for 20min, increase the speed to 3500rpm / min, drop 6g of The coating prepolymer was reacted at room temperature for 0.5 hours, cooled to room temperature, disch...
Embodiment 2
[0027] Preparation of flame retardant:
[0028] A. Preparation of coating agent prepolymer: dehydrate 200g PTMG with number average molecular weight of 650 at 110°C, vacuum degree -0.098MPa for 2 hours, moisture content 170ppm, cool to 40°C, add 326g TDI, heat up to 85 ℃, reacted for 2 hours, and after the NCO% mass content reached 25%, the material was discharged for subsequent use;
[0029] B. Polyurethane coating modification: In a three-necked flask with stirring, add 2.5g sodium lauryl sulfate, 2.5g sodium alginate and 300g deionized water, heat to 80°C and stir to dissolve, cool to room temperature, Add the hydrotalcite (Mg 6 al 2 (OH) 16 CO 3 4H 2O), the particle size is 200-300nm, stir and disperse at 2500rpm / min for 15min, then add 0.4g of BDO, 0.1g of catalyst T12, continue to stir and disperse for 30min, increase the speed to 3000rpm / min, drop 1.5g The coating agent prepolymer was reacted at room temperature for 1 hour, allowed to cool to room temperature, di...
Embodiment 3
[0033] Preparation of flame retardant:
[0034] A. Preparation of coating agent prepolymer: Dehydrate 200g PEG with a number average molecular weight of 1000 at 100°C, vacuum degree -0.098MPa for 2 hours, moisture content 180ppm, cool to 40°C, add 140g TDI, heat up to 85°C, react for 2 hours, after the NCO% reaches 15%, discharge the material for later use;
[0035] B. Polyurethane coating modification: In a three-necked flask with stirring, add 5g Tween-80, 5g sodium alginate and 600g deionized water, heat to 85°C and stir to dissolve, cool to room temperature, add 60g stearin Acid-modified hydrotalcite (Mg 4 al 2 (OH) 12 CO 3 4H 2 O), the particle size is 200-300nm, stir and disperse at 2000rpm / min for 20min, then add 0.3g of ethylene glycol, 0.1g of catalyst A33, continue to stir and disperse for 30min, increase the speed to 5000rpm / min, dropwise add 1.5g coating agent prepolymer, react at room temperature for 1 hour, let it cool to room temperature, discharge, filte...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More