A kind of organic polyurethane foam dressing and preparation method thereof
A polyurethane foam, organic technology, applied in medical science, bandages, absorbent pads, etc., can solve the problems of inability to achieve long-term bacteriostasis, adhesion of wound dressings, and high cost of antibacterial agents. handy effect
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Embodiment 1
[0025] The organic polyurethane foam dressing of the present invention is made of the following raw materials in proportion by weight: 20 parts of common polyether polyols, 20 parts of styrene-type grafted polyether polyols, 15 parts of ethylenediamine, 2 parts of pentane, 1 part of polymethylsiloxane-polyether copolymer, 1 part of ferrocene, 0.1 part of polyhexamethylene guanidine salt, 20 parts of hexamethylene diisocyanate, 1 part of pure water.
[0026] The method for preparing above-mentioned organic polyurethane foam dressing can be carried out in the following steps:
[0027] ①Weigh the common polyether polyol, styrene-type grafted polyether polyol, ethylenediamine, pentane, polymethylsiloxane-polyether copolymer, ferrocene, poly Hexamethylene guanidine salt and pure water were stirred at room temperature and 4000r / min for 50s to form a mixed solution;
[0028] ② Weigh the hexamethylene diisocyanate in the above weight ratio and add it to the mixed solution prepared in...
Embodiment 2
[0032] The organic polyurethane foam dressing of the present invention is made of the following raw materials in proportion by weight: 10 parts of ordinary polyether polyol, 40 parts of acrylonitrile-type grafted polyether polyol, 17 parts of ethylenediamine, and 3 parts of methylene chloride , 2.5 parts of low molecular weight alkoxy dimethyl polysiloxane, 2.5 parts of stannous 2-ethylhexanoate, 0.4 parts of triclosan, 50 parts of 4,4'-diphenylmethane diisocyanate, 2 parts of pure water .
[0033]The method for preparing above-mentioned organic polyurethane foam dressing can be carried out in the following steps:
[0034] ①Weigh the common polyether polyol, acrylonitrile type grafted polyether polyol, ethylenediamine, methylene chloride, low molecular weight alkoxy dimethyl polysiloxane, 2-ethyl polysiloxane and Stannous hexanoate, triclosan and pure water were stirred at room temperature for 55 seconds under the condition of 4000r / min to prepare a mixed solution;
[0035] ...
Embodiment 3
[0039] The organic polyurethane foam dressing of the present invention is made of the following raw materials in proportion by weight: 7.5 parts of ordinary polyether polyol, 52.5 parts of acrylonitrile-type grafted polyether polyol, 20 parts of ethylenediamine, trichlorofluoromethane 4 parts, 5 parts of low molecular weight high alkyl modified dimethylpolysiloxane, 5 parts of triethylenediamine, 0.8 part of chlorhexidine gluconate, 100 parts of toluene diisocyanate, 2 parts of pure water.
[0040] The method for preparing above-mentioned organic polyurethane foam dressing can be carried out in the following steps:
[0041] ①Weigh the common polyether polyol, acrylonitrile-type grafted polyether polyol, ethylenediamine, trichlorofluoromethane, low molecular weight high alkyl modified dimethyl polysiloxane respectively , triethylenediamine, chlorhexidine gluconate and pure water, at room temperature, stirred for 60s under the condition of 4000r / min to make a mixed solution;
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