Wave absorbing material for medical apparatus and preparation method thereof
A technology for absorbing materials and medical devices, applied in the field of medical materials, can solve the problems of the need for further improvement of the absorbing effect, the limited service life of materials, and the limited absorbing range, and achieves the control of electromagnetic pollution, the low manufacturing cost, and the absorbing effect. Good results
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Embodiment 1
[0027] A method for preparing a wave-absorbing material for medical devices, comprising the steps of:
[0028] 1) Preparation of vinylferrocene-4-vinylaniline-acrylonitrile triblock copolymer: 400g of vinylferrocene, 400g of 4-vinylaniline, 150g of acrylonitrile, 20g of benzoin ethyl ether and dodecylbenzene 20g of sodium sulfonate was uniformly mixed by stirring and ultrasonication, then dropped on a glass template, and irradiated with ultraviolet light with a wavelength of 220nm at room temperature for 50min to obtain a copolymer;
[0029] 2) Preparation of polypyrrole tube: 600g FeCl 3 •6H 2 O. Disperse 20 g of methyl orange in 3000 g of water. When flocculent substances are formed, add 20 g of pyrrole monomer and stir at room temperature for 24 hours. Obtain a black suspension, filter and dry to obtain a black solid substance;
[0030] 3) Surface modification of polypyrrole tubes: ultrasonically disperse 20 g of polypyrrole nanotubes prepared in step 2) in 100 g of N-me...
Embodiment 2
[0035] A method for preparing a wave-absorbing material for medical devices, comprising the steps of:
[0036] 1) Preparation of vinylferrocene-4-vinylaniline-acrylonitrile triblock copolymer: 400g vinylferrocene, 400g 4-vinylaniline, 150g acrylonitrile, 30g benzoin and polyoxypropylene polyethylene glycerin Mix 30g of ether evenly by stirring and ultrasonication, then drop it on a glass template, and irradiate it with ultraviolet light with a wavelength of 230nm at room temperature for 45min to obtain a copolymer;
[0037] 2) Preparation of polypyrrole tube: 600g FeCl 3 •6H 2 O. Disperse 20 g of methyl orange in 4000 g of water. When flocculent substances are formed, add 30 g of pyrrole monomer and stir at room temperature for 28 hours. Obtain a black suspension, filter and dry to obtain a black solid substance;
[0038] 3) Surface modification of polypyrrole tubes: ultrasonically disperse 22 g of polypyrrole nanotubes prepared in step 2) in 150 g of N-methylpyrrolidone, t...
Embodiment 3
[0043] A method for preparing a wave-absorbing material for medical devices, comprising the steps of:
[0044] 1) Preparation of vinylferrocene-4-vinylaniline-acrylonitrile triblock copolymer: 400g of vinylferrocene, 400g of 4-vinylaniline, 150g of acrylonitrile, 40g of benzoin dimethyl ether and nonylphenol 30g of polyoxyethylene ether was mixed uniformly by stirring and sonication, and then dropped on a glass template, and irradiated with ultraviolet light with a wavelength of 250nm at room temperature for 50min to obtain a copolymer;
[0045] 2) Preparation of polypyrrole tube: 600g FeCl 3 •6H 2 O. Disperse 20 g of methyl orange in 5000 g of water. When flocculent substances are formed, add 35 g of pyrrole monomer and stir at room temperature for 30 hours. Obtain a black suspension, filter and dry to obtain a black solid substance;
[0046] 3) Surface modification of polypyrrole tubes: 25 g of polypyrrole nanotubes prepared in step 2) were ultrasonically dispersed in 180...
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