Preparation method and application of a PDMS and AAO double-layer embedded template for patterning polymer thin films
A technology of polymer film and patterning, applied in the direction of application, coating, flat products, etc., to achieve the effect of low cost, cheap price and simple production process
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Embodiment 1
[0038] A method for preparing a PDMS and AAO double-layer embedded template in this embodiment comprises the following steps:
[0039] (1) Prepare 20mL of PDMS glue solution according to the formula ratio of PDMS glue solution of 5:1, and stir it with a stirrer for 0.5h at 0°C; then, put it in a vacuum drying oven and keep it under vacuum for 1h to eliminate Bubbles; after the bubbles are completely eliminated, store them in an airtight container at 0°C for later use.
[0040] (2) Double-pass anodized aluminum flakes were prepared by secondary anodization; high-purity aluminum flakes (purity: 99.999%, thickness: 0.3 mm) were used as raw materials, and washed in acetone and absolute ethanol solutions for 10 minutes respectively , and then dried; place the aluminum sheet in a muffle furnace at 450°C for 5 hours, and then cool it down to room temperature naturally; then, soak the aluminum sheet in 1mol / L sodium hydroxide solution for 15 minutes, and then wash it with deionized wa...
Embodiment 2
[0045] An application of the PDMS and AAO double-layer embedded template in the above-mentioned embodiment 1 of this embodiment, the PDMS and AAO double-layer embedded template is applied to the polymer film patterning:
[0046] (1) Prepare a polymer P3HT film with a thickness of 100nm by spin coating (spin coating speed 4000rpm), and place the side with the smooth hole structure of the PDMS and AAO double-layer embedded template and the polymer film face to face, as Figure 6 shown; then, at room temperature and 70bar pressure for 600s, such as Figure 7 As shown; finally, release the pressure, take out the template, and the polymer nanopillar film is successfully realized, as Figure 8 shown.
[0047] (2) Repeat the above steps to realize the preparation of large-area and batch-sized polymer P3HT nanocolumn films.
Embodiment 3
[0049] A method for preparing a PDMS and AAO double-layer embedded template in this embodiment comprises the following steps:
[0050] (1) Prepare 20mL of PDMS glue solution according to the formula ratio of PDMS glue solution of 5:1, and stir it with a stirrer for 0.5h at 0°C; then, put it in a vacuum drying oven and keep it under vacuum for 1h to eliminate Bubbles; after the bubbles are completely eliminated, store them in an airtight container at 0°C for later use.
[0051] (2) Double-pass anodized aluminum flakes were prepared by secondary anodization; high-purity aluminum flakes (purity: 99.999%, thickness: 0.3 mm) were used as raw materials, and washed in acetone and absolute ethanol solutions for 10 minutes respectively , and then dried; place the aluminum sheet in a muffle furnace at 450°C for 5 hours, and then cool it down to room temperature naturally; then, soak the aluminum sheet in 1mol / L sodium hydroxide solution for 15 minutes, and then wash it with deionized wa...
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