Quaternary ammonium salt containing polyurethane modified organosilicone copolymer
A polyurethane modification, quaternary ammonium salt technology, applied in the direction of plant fiber, improved hand fiber, biochemical fiber treatment, etc., can solve problems such as smoothness and insufficient hydrophilicity, and achieve improved aminosilicon finishing and fabric softness. , the effect of simple process
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Embodiment 1
[0033] 100g terminal epoxy silicone oil (molecular weight 12000, m≈159) was added to a four-necked flask equipped with a thermometer and a reflux condenser, and under stirring conditions, 1.2g N,N-dimethylethylamine and 1g acetic acid were added, Stir and react at 90°C for 5 hours to obtain polysiloxane containing quaternary ammonium salt; then, add 3.5 g of isophorone diisocyanate and 30 g of solvent acetone, stir and react at 50°C for 1 hour, and analyze by di-n-butylamine method After the residual NCO content reaches the calculated value, add 30g polyether diol PEG-PPG2000 (molecular weight 2000, EO / PO=), catalyst dibutyltin dilaurate 0.1g, stir and react at 65°C for 5 hours to obtain Quaternary ammonium salt polyurethane modified silicone copolymer.
[0034] From attached figure 1 As can be seen in the 800cm -1 and 1261cm -1 The absorption peaks that appear should belong to the characteristic absorption peaks of Si-O-Si and Si-C in the silicone oil structure. At 2280-2...
Embodiment 2
[0036] Add 100g of terminal epoxy silicone oil (molecular weight 15000, m≈) into a four-necked flask equipped with a thermometer and a reflux condenser, and add 1.0g of N,N-dimethylethanolamine and 1.2g of malonic acid under stirring conditions , stirred and reacted at 100°C for 3 hours to obtain polysiloxane containing quaternary ammonium salt; then, added 4.6g of methylphenyl diisocyanate and 80g of propyl acetate as a solvent, stirred and reacted at 50°C for 2 hours, and di-n-butyl Analyze the residual NCO content by amine method. After reaching the calculated value, add 10g of hydroxyl polyetheramine PEG400 (molecular weight 400, a=9, b=0), catalyst dibutyltin dilaurate 0.1g, and stir for 8 hours at 80°C , to obtain polyurethane-modified silicone copolymer containing quaternary ammonium salt.
Embodiment 3
[0038] 100g terminal epoxy silicone oil (molecular weight 30000, m≈) was added to a four-necked flask equipped with a thermometer and a reflux condenser, and under stirring conditions, 1g of N,N-dimethylethylenediamine and 2g of lauric acid were added, Stir the reaction at 100°C for 8 hours to obtain polysiloxane containing quaternary ammonium salt; then, add 2.4g of hexyl diisocyanate and 100g of dipropylene glycol dimethyl ether as a solvent, stir and react at 25°C for 3 hours, and use di-n-butylamine The residual NCO content was analyzed by the method, and when the calculated value was reached, 20 g of hydroxyl polyether PEG-PPG100 (molecular weight 1000, a=12, b=8), catalyst dibutyltin dilaurate 0.5 g, and stirred at 100°C for 12 hours were added , to obtain polyurethane-modified silicone copolymer containing quaternary ammonium salt.
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