Preparation method of doped graphene oxide/nanometer silver melt-blown nonwoven material
A non-woven material, graphene technology, applied in non-woven fabrics, melt spinning, rayon manufacturing, etc., can solve the problems that restrict the safety and protective effect of medical protective materials, and the lack of active inactivation of bacteria and viruses. Achieve the effect of avoiding agglomeration problems, enhancing dispersion performance, and avoiding stacking and agglomeration
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Take a certain amount of graphene oxide and dilute it with water to a concentration of 0.5mg / ml, and take 50L of the diluted graphene oxide aqueous solution (referring to the quality of graphene oxide, the same below: 25g) and use sodium hydroxide to adjust the pH to 11. In the graphene oxide aqueous solution after adjusting the pH value, add 2.5L concentration and be the amino-terminated hyperbranched polymer of 6g / L (refer to the quality of amino-terminated hyperbranched polymer, the same below: 15g) aqueous solution, ultrasonically mix under room temperature, And keep stirring for 10h. Add 0.0883 L of silver nitrate (referring to the quality of silver nitrate, the same below: 1.5 g) aqueous solution with a concentration of 0.1 mol / L to the graphene oxide aqueous solution modified by amino-terminated hyperbranched polymers, and after fully stirring, high-speed centrifugation removes the upper solution. Clear liquid, and re-dispersed in tetrahydrofuran, the concentrati...
Embodiment 2
[0036] A certain amount of graphene oxide was diluted with water to a concentration of 0.1 mg / ml, and 50 L of diluted graphene oxide aqueous solution (5 g) was taken to adjust the pH to 13 with sodium hydroxide. Add 5 L of amino-terminated hyperbranched polymer (5 g) aqueous solution with a concentration of 1 g / L to the graphene oxide aqueous solution after adjusting the pH value, ultrasonically mix at room temperature, and continue stirring for 24 h. Add 0.0294 L of silver nitrate (0.2498 g) aqueous solution with a concentration of 0.05 mol / L to the graphene oxide aqueous solution modified by amino-terminated hyperbranched polymers. After fully stirring, remove the supernatant by high-speed centrifugation, and redisperse in tetrahydrofuran , the concentration of the dispersion is 2g / L; then spray it into 10.25 kg of PP masterbatch, stir while spraying, and then add it to the drying barrel and tumble and dry at room temperature to obtain the spinning material doped with modifie...
Embodiment 3
[0038] A certain amount of graphene oxide was diluted with water to a concentration of 5 mg / ml, and 50 L of diluted graphene oxide aqueous solution (250 g) was taken to adjust the pH to 9 with sodium hydroxide. Add 5L of amino-terminated hyperbranched polymer (25g) aqueous solution with a concentration of 5g / L to the graphene oxide aqueous solution after adjusting the pH value, ultrasonically mix at room temperature, and continue stirring for 5h. Adding 0.0029L of silver nitrate (0.49g) aqueous solution with a concentration of 1mol / L in the modified graphene oxide aqueous solution modified by the amino-terminated hyperbranched polymer, after fully stirring, remove the supernatant by high-speed centrifugation, and redisperse in tetrahydrofuran, The concentration of the dispersion is 7g / L; then sprayed into 27.55 kg of PP masterbatch, stirred while spraying, and then added to the drying barrel at room temperature, tumbled and dried to obtain a spinning masterbatch doped with modi...
PUM
| Property | Measurement | Unit |
|---|---|---|
| concentration | aaaaa | aaaaa |
| antibacterial rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More