Preparation method of aramid nanofiber graphene oxide konjac glucomannan composite film
A konjac glucomannan and nanofiber technology is applied in the field of preparation of aramid nanofiber graphene oxide konjac glucomannan composite film, which can solve the problems of white pollution and difficult to degrade, and can increase the contact area and increase the Mechanical properties, the effect of improving dispersibility
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[0035] Specifically, the preparation method of the aramid nanofiber graphene oxide konjac glucomannan composite film comprises the following steps:
[0036] Step 1, preparation of konjac glucomannan solution: konjac glucomannan is dispersed in ethanol, glycerol and lye are added, and stirred to obtain konjac glucomannan solution;
[0037] Specifically, take konjac glucomannan in an amount of 1.00-1.25g, place it in a flask, add 5mL of 60% ethanol to disperse, add 0.1mol / L NaOH100mL to dissolve, 2.0-3.0ml glycerin, and stir. The stirring speed is adjusted to 650-850rpm, and the time is 10-15min.
[0038] Step 2, preparation of graphene oxide sol: graphene oxide is dissolved in toluene, and graphene oxide sol is obtained by ultrasonication;
[0039] Specifically, put 0.6-0.8 g of graphene oxide in a flask, add 10-12 ml of toluene to dissolve, and obtain a graphene oxide sol by ultrasonication, wherein the ultrasonic power is 100 W, and the time is 30-40 min.
[0040] Step 3, a...
Embodiment 1
[0051] The method of the present embodiment comprises the following steps:
[0052] Step 1. Preparation of konjac glucomannan solution: Disperse 1.00 g of konjac glucomannan in 5 mL of 60% ethanol, add 2.0 mL of glycerol and 0.1 mol / L NaOH 100 mL, stir magnetically at 650 rpm for 10 min;
[0053] Step 2, preparation of graphene oxide sol: 0.6g graphene oxide was dissolved in 10mL toluene, ultrasonic, the power was 100W, and the time was 30min, to obtain graphene oxide sol;
[0054] Step 3, adding the graphene oxide sol in step 2 to the konjac glucomannan solution in step 1, and ultrasonicating for 10 minutes in a circulating environment to obtain a graphene oxide and konjac glucomannan composite solution gel, and graphite oxide The compound solution glue of alkene and konjac glucomannan is spread to form a film material, degassed in a freeze dryer, and dried for 30min;
[0055] Step 4, uniformly mix 6mL of the diluted dispersion of aramid nanofibers and 3mL of silver bromide ...
Embodiment 2
[0058] The method of the present embodiment comprises the following steps:
[0059] Step 1. Preparation of konjac glucomannan solution: Disperse 1.05g of konjac glucomannan in 5mL of 60% ethanol, add 2.2mL of glycerol and 0.1mol / L NaOH100mL, stir magnetically at 700rpm for 11min;
[0060] Step 2, preparation of graphene oxide sol: 0.7g graphene oxide was dissolved in 10mL toluene, ultrasonic, the power was 100W, and the time was 32min, to obtain graphene oxide sol;
[0061] Step 3, adding the graphene oxide sol in step 2 to the konjac glucomannan solution in step 1, and ultrasonicating for 11 minutes in a circulating environment to obtain graphene oxide and konjac glucomannan composite solution glue, and graphite oxide Alkene and konjac glucomannan composite solution glue is spread to form a film material, degassed in a freeze dryer, and dried for 32min;
[0062] Step 4. Uniformly mix 7mL of the diluted dispersion of aramid nanofibers and 3.2mL of silver bromide solution to o...
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