A kind of graphene antibacterial masterbatch, fiber and preparation method thereof
A technology of antibacterial masterbatch and antibacterial fiber, which is applied in the field of graphene antibacterial masterbatch, fiber and its preparation, can solve the problems of weak antibacterial performance, poor heat resistance of chitosan, agglomeration, etc., and achieve good antibacterial performance, uniform dispersion, The effect of enhancing physical and mechanical properties
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Embodiment 1
[0028] The first powder preparation: 1g of graphene oxide is placed in a 500ml beaker, 200ml of distilled water is added, the PH value is adjusted to 8 with NaOH, magnetically stirred evenly to form a graphene oxide suspension; 5g of water-soluble polyquaternary ammonium salt is added and stirred again for 0.5 h, make it fully dissolved, place the mixed solution under ultrasonic for 2h, filter, and wash with distilled water to remove unreacted NaOH, dry it for later use, and obtain the first powder.
[0029] The second powder preparation: Weigh 15g nylon 6 slices and dissolve them in a beaker containing 100mL formic acid, stir at room temperature to dissolve, add 5g of the first powder, stir again for 0.5h, ultrasonically shake, use ethanol to clean and filter, in a blast drying oven Dry to constant weight at 80℃ to obtain the second powder.
[0030] Masterbatch preparation: Add the second powder and nylon 6 into a high-speed mixer at a mass ratio of 1:3, stir for 5 minutes and the...
Embodiment 2
[0033] The first powder preparation: 1g of graphene oxide is placed in a 500ml beaker, 200ml of distilled water is added, the PH value is adjusted to 9 with NaOH, magnetically stirred evenly to form a graphene oxide suspension; 8g of water-soluble polyquaternary ammonium salt is added and stirred again for 0.5 h, make it fully dissolved, place the mixed solution under ultrasonic for 2h, filter, and wash with distilled water to remove unreacted NaOH, dry it for later use, and obtain the first powder.
[0034] Preparation of the second powder: Weigh 15g nylon 6 slices and dissolve them in a beaker containing 100mL formic acid, stir at room temperature to dissolve, add 8g of the first powder, stir again for 0.5h, ultrasonically shake, use ethanol to clean and filter, in a blast drying oven Dry to constant weight at 70°C to obtain the second powder.
[0035] Masterbatch preparation: Add the second powder and nylon 6 into a high-speed mixer according to a mass ratio of 1:5, stir for 5 m...
Embodiment 3
[0038] The first powder preparation: 1g of graphene oxide is placed in a 500ml beaker, 200ml of distilled water is added, the pH value is adjusted to 8.5 with NaOH, magnetically stirred to form a graphene oxide suspension; 10g of water-soluble polyquaternary ammonium salt is added, and stirred again for 0.5 h, make it fully dissolved, place the mixed solution under ultrasonic for 2h, filter, and wash with distilled water to remove unreacted NaOH, dry it for later use, and obtain the first powder.
[0039] Preparation of the second powder: Weigh 15g nylon 6 slices and dissolve them in a beaker containing 100mL formic acid, stir at room temperature to dissolve, add 10g of the first powder, stir again for 0.5h, ultrasonically shake, use ethanol to clean and filter, in a blast drying oven Dry to constant weight at 90°C to obtain the second powder.
[0040] Masterbatch preparation: Add the second powder and nylon 6 into a high-speed mixer at a mass ratio of 1:4, stir for 5 minutes and t...
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