Ostomy pouch
An ostomy bag and stoma technology, which can be used in colostomy, colostomy device, pharmaceutical formulations, etc., and can solve problems such as toxicity
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Embodiment 1
[0090] Functionalized alumina (Al 2 o 3 ) particles were synthesized as follows. Alumina (Al 2 o 3 ) particles (d=13 nm, 10.0 g, 98.0 mmol, 1.0 equiv) and isostearic acid (39.1 g, 137.3 mmol, 1.4 equiv) were refluxed in toluene (250 mL) for 24 hours. Once the reaction time was up, the reaction mixture was collected and centrifuged at 5000 rpm for 1 hour. The solid was then recovered and centrifuged in isopropanol at 5,000 rpm for 1 hour. Next, the solid was centrifuged in ethanol at 5,000 rpm for 1 hour, centrifuged 3 times, and then dried at 80° C. for 6 hours.
[0091] functionalized with Al 2 o3 The particles are coated with a polymer film. functionalized Al 2 o 3 The deposition of the particles on the polymer film was achieved by spraying with a 2% by weight suspension in isopropanol at ambient temperature. Tri-spraying managed to achieve functionalized Al 2 o 3 Maximum coverage of particles on polymer film.
[0092] The WCA of the resulting polymer film was 1...
Embodiment 2
[0094] Functionalized iron oxide (Fe 3 o 4 ) particles were synthesized as follows. Iron oxide (Fe 3 o 4 ) particles (d=15-20 nm, 5.0 g, 21.6 mmol, 1.0 equiv) and isostearic acid (18.4 g, 64.7 mmol, 3.0 equiv) were refluxed in toluene (100 mL) under mechanical stirring for about 24 hours. Once the reaction time was up, the mixture was centrifuged at 5000 rpm for 1 hour. Next, the solid was recovered and dried at 80° C. for 6 hours.
[0095] with functionalized Fe 3 o 4 The particles are coated with a polymer film. Functionalized Fe 3 o 4 The deposition of the particles on the polymer film was achieved by spraying with a 2% by weight suspension in isopropanol at ambient temperature. Tri-spraying managed to achieve functionalized Fe 3 o 4 Maximum coverage of particles on polymer film.
[0096] The WCA of the resulting polymer film was 151.9° ± 2.1°.
Embodiment 3
[0098] The polymer film was heated and functionalized with Al as described in Example 1 2 o 3 Particle coating. Once the polymer film softens due to heating, the functionalized Al 2 o 3 The particles are sprayed onto the polymer film. The heating of the polymer film was performed as follows. First, physically attach the edge of the polymer film to the surface of the glass Petri dish. The purpose of this is to immobilize the polymer film to limit the extent to which it changes shape during heating. The dish was then heated until physical deformation of the polymer film was observed. Once physical deformation of the polymer film was observed, the functionalized Al 2 o 3 The particles are deposited onto the polymer film. Spray coating of functionalized Al with a 2.0 wt% suspension 2 o 3 particles. Five sprays to manage functionalized Al 2 o 3 Maximum coverage of particles on polymer film. Continue to heat the polymer film after each spray application to expedite th...
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