Furan bio-based antibacterial and anti-yellowing multifunctional fabric flame retardant containing N-type and P-type polymers as well as preparation method and application of fabric flame retardant
A bio-based, anti-yellowing technology, which is applied in the treatment of flame-retardant fibers, plant fibers, and biochemical fibers, can solve problems such as environmental pollution, climate change, energy crisis, and the limited number of non-renewable resources, and achieve important environmental protection and The effect of circular economy meaning
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Embodiment 1
[0029] Step 1: In a 2-liter four-necked round-bottomed flask equipped with a stirrer, a thermometer and a dropping funnel, first add 2 mol of NH 2 NH 2 .H 2 O, 2mol triethylamine and 100ml dichloromethane, then add 1mol at 20°C Then continue to keep warm at 20°C for 10 hours, and finally remove the organic solvent by distillation under reduced pressure to obtain The reaction is an exothermic reaction.
[0030] Step 2: First mix 1mol with 1mol Mix in 100 ml of toluene at 20°C, then stir at 70°C for 10 hours, and finally distill the organic solvent under reduced pressure to obtain where n=125.
[0031] The physical constants of the final product of this embodiment are: 1H NMR (400MHz, CDCl3) δ7.02 (br, 1H), 6.58 (br, 1H), 5.07 (s, 8H).. Infrared spectrum (KBr tablet): 3350 , 2946, 1658, 1430, 918, 824cm-1. Elemental analysis calculated value: C, 31.00; H, 3.78; N, 13.15; found value: C, 31.21; H, 3.89; N, 13.10.
Embodiment 2
[0033] Step 1: In a 2-liter four-necked round-bottomed flask equipped with a stirrer, a thermometer and a dropping funnel, first add 2 mol of NH 2 NH 2 .H 2 O, 2mol triethylamine and 100ml dichloromethane, then add 1mol at 20°C Then continue to keep warm at -20°C for 10 hours, and finally remove the organic solvent by distillation under reduced pressure to obtain The reaction is an exothermic reaction.
[0034] Step 2: First mix 1mol with 1mol Mixed in 100 ml of toluene at 20°C, then stirred at 160°C for 10 hours, and finally distilled the organic solvent under reduced pressure to obtain where n=150.
[0035] The physical constant of present embodiment final product is the same as embodiment 1
Embodiment 3
[0037] Step 1: In a 2-liter four-neck round bottom flask equipped with a stirrer, a thermometer and a dropping funnel, first add 10mol NH 2 NH 2 .H 2 O, 2mol triethylamine and 100ml dichloromethane, then add 1mol at 20°C Then continue to incubate at -20°C for 10 hours, and finally remove the organic solvent and excess NH by distillation under reduced pressure. 2 NH2 .H 2 O get The reaction is an exothermic reaction.
[0038] Step 2: First mix 1mol with 1mol Mixed in 100 ml of toluene at 20°C, then stirred at 160°C for 10 hours, and finally distilled the organic solvent under reduced pressure to obtain n=165.
[0039] . The physical constant of present embodiment final product is the same as embodiment 1
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