A polyvinylidene fluoride nanocomposite fiber membrane with antistatic properties and high β-crystal content
A technology of nanocomposite fiber and polyvinylidene fluoride, which is applied in non-woven fabrics, textiles, papermaking, spinning solution preparation, etc., can solve problems not involving polyvinylidene fluoride polar crystals, etc., and achieve good antistatic effect, Good antistatic property, simple industrial preparation effect
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Embodiment 1
[0040] Step (1). Dry polyvinylidene fluoride and 1-butyl-3-methylimidazolium hexafluorophosphate at 80°C for 24 hours in vacuum respectively;
[0041] Step (2). Mix 2g of dried polyvinylidene fluoride, 0.01g of dried 1-butyl-3-methylimidazolium hexafluorophosphate and 6g of N,N-dimethylformamide at 70°C Heated in a water bath and stirred magnetically for 4h. After the polyvinylidene fluoride is completely dissolved, 4 g of acetone is added to the above polyvinylidene fluoride solution, and after the solution is stirred evenly, a precursor solution for electrospinning is obtained;
[0042] Step (3). Inhale 2 ml of the prepared precursor solution into a 5 ml medical syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, and connect the negative electrode to aluminum foil. The aluminum foil is placed at a distance of 15 cm from the horizontal direction of the stainless steel needle. As a collecting plate, the polyvinylidene...
Embodiment 2
[0045] Step (1). Dry polyvinylidene fluoride and 1-butyl-3-methylimidazolium hexafluorophosphate at 80°C for 24 hours in vacuum respectively;
[0046] Step (2). Mix 2g of dried polyvinylidene fluoride, 0.04g of dried 1-butyl-3-methylimidazolium hexafluorophosphate and 6g of N,N-dimethylformamide at 70°C Heated in a water bath and stirred magnetically for 4h. After the polyvinylidene fluoride is completely dissolved, 4 g of acetone is added to the above polyvinylidene fluoride solution, and after the solution is stirred evenly, a precursor solution for electrospinning is obtained;
[0047] Step (3). Inhale 2 ml of the prepared precursor solution into a 5 ml medical syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, and connect the negative electrode to aluminum foil. The aluminum foil is placed at a distance of 15 cm from the horizontal direction of the stainless steel needle. As a collecting plate, the polyvinylide...
Embodiment 3
[0050] Step (1). Dry polyvinylidene fluoride and 1-butyl-3-methylimidazolium hexafluorophosphate at 80°C for 24 hours in vacuum respectively;
[0051] Step (2). Mix 2g of dried polyvinylidene fluoride, 0.05g of dried 1-butyl-3-methylimidazolium hexafluorophosphate and 6g of N,N-dimethylformamide at 70°C Heated in a water bath and stirred magnetically for 4h. After the polyvinylidene fluoride is completely dissolved, 4 g of acetone is added to the above polyvinylidene fluoride solution, and after the solution is stirred evenly, a precursor solution for electrospinning is obtained;
[0052] Step (3). Inhale 2 ml of the prepared precursor solution into a 5 ml medical syringe, connect the positive electrode of the high-voltage power supply to the spinning stainless steel needle, and connect the negative electrode to aluminum foil. The aluminum foil is placed at a distance of 15 cm from the horizontal direction of the stainless steel needle. As a collecting plate, the polyvinylide...
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