A kind of hydrophobic photocatalytic self-cleaning hybrid membrane applicable to the surface of silicone rubber and its preparation method
A technology of silicone rubber and hybrid membrane, which is applied in the field of hydrophobic photocatalytic self-cleaning hybrid membrane and its preparation, can solve the problems of large differences in chemical and physical properties, and achieve low cost, good application prospects, and good compatibility Effect
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Embodiment 1
[0037] (1) PDMS / TiO 2 Synthesis of hybrid glue
[0038] Measure 36.7 mL of isopropanol, 51.2 mL of acetylacetone, and 40.0 mL of tetrahydrofuran into a 250 mL single-necked flask, mix well and add 1 g of double-ended trimethoxy PDMS (Silmer TMS Di-10 type, Guangzhou Jianyi Chemical Co., Ltd. Export Co., Ltd.), after the glass stopper was plugged in the mouth of the single-necked flask, the magnetic stirring was carried out for 1 h. After stirring and dissolving, add 1 mL of 37% hydrochloric acid solution and 0.2 mL of vinyltriethoxysilane to the solution at the same time, continue stirring for 1 h, and store in a 100 mL beaker for later use. Take 10 mL of the ready-to-use solution in a small reagent bottle with a cap, slowly add 0.5 g of Degussa P25 nano-titanium dioxide powder, 0.01 g of dispersant (German BYK DISPERBYK-180 type), and magnetically stir for 24 h after sealing to obtain a uniform Yellow PDMS / TiO 2 Hybrid glue.
[0039] (2) PDMS / TiO2 2 Preparation of hybrid...
Embodiment 2
[0042] (1) PDMS / TiO 2 Synthesis of hybrid glue
[0043] Measure 36.7 mL of isopropanol, 51.2 mL of acetylacetone, and 40.0 mL of tetrahydrofuran in a 250 mL single-necked flask and mix evenly, then add 1 g of double-ended trimethoxy PDMS (Silmer TMS Di-10 type, Guangzhou Jianyi Chemical Co. Export Co., Ltd.), after the glass stopper was plugged in the mouth of the single-necked flask, the magnetic stirring was carried out for 1 h. After stirring and dissolving, add 1 mL of 37% hydrochloric acid solution and 0.1 mL of vinyltriethoxysilane to the solution at the same time, continue stirring for 1 h, and store in a 100 mL beaker for later use. Take 5 mL of the ready-to-use solution in a small reagent bottle with a cap, slowly add 5.0 mL of nano-titanium dioxide sol dropwise, seal it and stir it magnetically for 24 h to obtain a uniform yellow PDMS / TiO 2 Hybrid glue.
[0044] (2) PDMS / TiO2 2 Preparation of hybrid membrane
[0045] PDMS / TiO 2 The hybrid gel was poured into a ...
Embodiment 3
[0047] (1) PDMS / TiO 2 Synthesis of hybrid glue
[0048] Measure 36.7 mL of isopropanol, 51.2 mL of acetylacetone, and 40.0 mL of tetrahydrofuran into a 250 mL single-necked flask and mix evenly, then add 1 g of aminopropyl-terminated PDMS (Fluorochem, USA), and stopper the mouth of the single-necked flask with a glass stopper Then, magnetic stirring was used to dissolve for 1 h. Add 1 mL of 37% hydrochloric acid solution and 0.1 mL of vinyltriethoxysilane to the solution at the same time, continue to stir for 1 h, and store it in a 100 mL beaker for later use. Take 5 mL of the ready-to-use solution in a small reagent bottle with a cap, slowly add 5.0 mL of nano-titanium dioxide sol dropwise, seal it and stir it magnetically for 24 h to obtain a uniform yellow PDMS / TiO 2 Hybrid glue.
[0049] (2) PDMS / TiO2 2 Preparation of hybrid membrane
[0050] PDMS / TiO 2 The hybrid gel was poured into a 10.0 mL centrifuge tube, and the black and gray silicone rubber rolls with a width...
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