Method for preparing poly-4-methylpentene and porous silica microsphere composite film based on casting method
A technology of porous silica and methylpentene, which is applied in the field of organic composite film preparation, to achieve the effect of smooth surface, improvement of weak bonding, stability and repeatability guarantee
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[0038] Preparation method of organic composite film
[0039] The inventors found that the general preparation method of the organic composite film is not suitable for the composite film of the present invention, therefore, in the present disclosure, the casting method is used to prepare a film with large area and thickness, while ensuring the smooth surface of the film It also improves the problem of weak bonding between the film and the substrate. In the present disclosure, the casting method is applied to the preparation of organic composite films, and a composite film of poly-4-methylpentene and porous silicon oxide microspheres is obtained with high repeatability, continuous controllable thickness, and smooth surface. This method is described in detail below.
[0040]Dissolving poly-4-methylpentene in an organic solvent to obtain poly-4-methylpentene solution. The organic solvent is a non-polar organic solvent with a low boiling point (for example, the boiling point is b...
Embodiment 1
[0054] (1) Dissolution of the polymer poly-4-methylpentene (TPX). The specific process is: select cyclohexane as the solvent of poly-4-methylpentene, fully stir under heating and stirring conditions, wherein the quality of poly-4-methylpentene is 0.23g, the quality of cyclohexane is 3.83g, the water bath temperature Set to 65°C, stirring time is 40min.
[0055] (2) Pretreatment of the substrate. Wherein, the pretreatment of the substrate includes: firstly, the substrate is ultrasonically cleaned in deionized water and ethanol in sequence, each time lasting 10 minutes, and dried in an oven. The aforementioned substrate is a material with a flat and smooth surface. The selected substrate is an FTO glass plate (3×4cm) with a thickness of 2.3mm.
[0056] (3) Preparation of composite solution. Add 0.0600 g of porous SiO to the poly-4-methylpentene solution 2 Microspheres, the particle size of the microspheres is 10 μm, and the pore size is 20 nm (purchased from Suzhou Zhiyi Mi...
Embodiment 2
[0061] (1) Dissolution of the polymer poly-4-methylpentene (TPX). The specific process is: select cyclohexane as the solvent of poly-4-methylpentene, fully stir under heating and stirring conditions, wherein the quality of poly-4-methylpentene is 0.25g, the quality of cyclohexane is 4.17g, the water bath temperature Set to 65°C, stirring time is 40min.
[0062] (2) Pretreatment of the substrate. Wherein, the pretreatment of the substrate includes: firstly, the substrate is ultrasonically cleaned in deionized water and ethanol in sequence, each time lasting 10 minutes, and dried in an oven. The aforementioned substrate is a material with a flat and smooth surface. The selected substrate is an FTO glass plate (3×4cm) with a thickness of 2.3mm.
[0063] (3) Preparation of composite solution. Add 0.0663 g of porous SiO to the poly-4-methylpentene solution 2 Microspheres with a particle size of 10 μm and a pore size of 20 nm (purchased from Suzhou Zhiyi Microsphere Technology ...
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