Preparation and application of a superhydrophobic fragrance slow-release cotton fiber
A slow-release cotton and super-hydrophobic technology, applied in the field of materials, can solve problems such as cumbersome operation, affecting the slow-release effect, and porous materials falling off
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Embodiment 1
[0025] (1) Preparation of MOF-TiO 2 -Cotton fiber / menthol: Dissolve 60 g of butyl titanate in 600 mL of absolute ethanol, add 7.8 g of cotton fiber, let it stand for 5.0 min and dry at 70°C to obtain TiO 2 (100)-cotton fiber; the TiO obtained above 2 (100)-Cotton fibers were impregnated in 200 mL of methanol solution containing 6.568 g of 2-methylimidazole, then added 200 mL of methanol solution containing 5.8206 g of cobalt nitrate hexahydrate, mixed well, left to react for 2.0 h, and dried Preparation of MOF(0.10)-TiO 2 (100)-cotton fiber; 33 g PDMS was dissolved in 330 mL n-heptane, and 99 g menthol was added to obtain a n-heptane solution containing menthol and PDMS, and the prepared MOF(0.10)-TiO 2 (100)-Cotton fibers were immersed in 300 mL of the above solution for 1.0 min and then dried at 70 °C to obtain MOF(0.10)-TiO 2 (100)-cotton fiber / menthol, the static water contact angle is 153.4°.
[0026] (2) For the MOF(0.10)-TiO prepared in this example 2 (100)-cotton ...
Embodiment 2
[0029] (1) Preparation of MOF-TiO 2 - Cotton fiber / menthol: Dissolve 15 g of butyl titanate in 600 mL of absolute ethanol, add 7.8 g of cotton fiber, let it stand for 5.0 min and dry at 70°C to obtain TiO 2 (25)-cotton fiber; the TiO obtained above 2 (25)-Cotton fibers were impregnated in 200 mL methanol solution containing 3.284 g 2-methylimidazole, then added 200 mL methanol solution containing 2.9103 g cobalt nitrate hexahydrate, mixed well, left to react for 2.0 h, and dried Preparation of MOF(0.050)-TiO 2 (25)-Cotton fiber; 33 g PDMS was dissolved in 330 mL n-heptane, and 99 g menthol was added to obtain a n-heptane solution containing menthol and PDMS, and the prepared MOF(0.050)-TiO 2 (25)-Cotton fibers were soaked in 300 mL of the above solution for 1.0 min and then dried at 70 °C to obtain MOF(0.050)-TiO 2 (25)-Cotton Fiber / Menthol.
[0030] (2) For the MOF(0.050)-TiO prepared in this example 2 (25)-Cotton fiber / menthol for menthol sustained-release performance e...
Embodiment 3
[0032] (1) Preparation of MOF-TiO 2 - Cotton fiber / menthol: Dissolve 30 g of butyl titanate in 600 mL of absolute ethanol, add 7.8 g of cotton fiber, let it stand for 5.0 min and then dry at 70°C to obtain TiO 2 (50)-cotton fiber; the TiO obtained above 2 (50)-Cotton fibers were impregnated in 200 mL methanol solution containing 6.568 g 2-methylimidazole, then added 200 mL methanol solution containing 5.8206 g cobalt nitrate hexahydrate, mixed well, left to react for 2.0 h, and dried Preparation of MOF(0.10)-TiO 2 (50)-cotton fiber; 33 g PDMS was dissolved in 330 mL n-heptane, and 99 g menthol was added to obtain a n-heptane solution containing menthol and PDMS, and the prepared MOF(0.10)-TiO 2 (50)-Cotton fibers were immersed in 300 mL of the above solution for 1.0 min and then dried at 70 °C to obtain MOF(0.10)-TiO 2 (50)-Cotton Fiber / Menthol.
[0033] (2) For the MOF(0.10)-TiO prepared in this example 2 (50)-cotton fiber / menthol for menthol sustained-release performanc...
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