Medical silver-loaded gauze and preparation method thereof
A gauze and silver-loading technology, applied in plant fibers, fiber processing, textiles and papermaking, etc., can solve problems such as damage, and achieve the effects of high safety performance, good aqueous solution stability, and excellent bacteriostatic performance.
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Embodiment 1
[0039] A kind of medical silver-loaded gauze of the present invention is loaded with polyamide complexed silver in degreasing gauze; Modified polyamide complexed silver is made of silver ion and modified polyamide (see figure 1 ) of the amino complex, the amino group of the modified polyamide only exists in the interior of its molecular structure.
[0040] The medical silver-loaded gauze of the present embodiment is prepared by the following method:
[0041](1) Synthesis and modification of polyamide: polycondensation reaction between polyamino monomer (triethylenetetramine) and olefinic acid (acrylic acid); specifically, triethylenetetramine is cooled to 5-10°C in an ice-water bath, and then Use a funnel to slowly add acrylic acid to it. After the addition, react at room temperature for 4 hours to form a light yellow intermediate. Place the intermediate on a rotary evaporator to remove unreacted monomers and other solvents under reduced pressure, and then raise the temperatur...
Embodiment 2
[0048] A kind of medical silver-loaded gauze of the present invention is loaded with polyamide complexed silver in degreasing gauze; Modified polyamide complexed silver is made of silver ion and modified polyamide (see figure 1 ) of the amino complex, the amino group of the modified polyamide only exists in the interior of its molecular structure.
[0049] The medical silver-loaded gauze of the present embodiment is prepared by the following method:
[0050] (1) Synthesis and modification of polyamide: polycondensation reaction between polyamino monomer (diethylenetriamine) and olefinic acid (methyl acrylate); specifically, diethylenetriamine is cooled to 5-10°C in an ice-water bath , and then use a funnel to slowly drop methyl acrylate to it, after the dropwise addition, react at room temperature for 4 hours to generate a light yellow intermediate, place the intermediate on a rotary evaporator to remove unreacted monomers and other solvents under reduced pressure, and then he...
Embodiment 3
[0057] A kind of medical silver-loaded gauze of the present invention is loaded with polyamide complexed silver in degreasing gauze; Modified polyamide complexed silver is made of silver ion and modified polyamide (see figure 1 ) of the amino complex, the amino group of the modified polyamide only exists in the interior of its molecular structure.
[0058] The medical silver-loaded gauze of the present embodiment is prepared by the following method:
[0059] (1) Synthesis and modification of polyamide: polycondensation reaction between polyamino monomer (diethylenetriamine and tetraethylenepentamine mixture) and olefinic acid (methyl acrylate); specifically, diethylenetriamine and tetraethylenepentamine Cool the 1:1 mixture of ethylenepentamine to 5-10°C in an ice-water bath, then slowly add methyl methacrylate dropwise to it with a funnel, after the dropwise addition, react at room temperature for 4 hours to form a light yellow intermediate, and place the intermediate Remove...
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