▎ 摘　　要

NOVELTY - Preparing designable layered nanocomposite film comprises preparing a variety of first-component micro-nano material dispersion; placing a support film with plurality of through holes on the surface of the first micro-nano material dispersion; when the support film and first micro-nano material dispersion are in static state, heating first micro-nano material dispersion, and self-assembling first micro-nano material particles on the lower surface of support film to form a first layer of micro-nano material self-assembly structure; transferring the support film with first layer of micro-nano material self-assembly structure attached to lower surface to surface of second micro-nano material dispersion; when the support film and the second micro-nano material dispersion are in a static state, heating second micro-nano material dispersion, self-assembling second micro-nano material particles on the lower surface of the first layer of micro-nano material self-assembled structure. USE - The method is useful for preparing designable layered nanocomposite film. ADVANTAGE - The method: can quickly prepares a large-area layered composite film, and the type of micro-nano material in each layer can be selected according to needs, and there are few restrictions on micro-nano materials; layered structure of prepared multilayer composite film is clear and evenly distributed. DETAILED DESCRIPTION - Preparing designable layered nanocomposite film comprises preparing a variety of first-component micro-nano material dispersion; placing a support film with plurality of through holes on the surface of the first micro-nano material dispersion; when the support film and first micro-nano material dispersion are in static state, heating first micro-nano material dispersion, and self-assembling first micro-nano material particles on the lower surface of support film to form a first layer of micro-nano material self-assembly structure; transferring the support film with first layer of micro-nano material self-assembly structure attached to lower surface to surface of second micro-nano material dispersion; when the support film and the second micro-nano material dispersion are in a static state, heating second micro-nano material dispersion, self-assembling second micro-nano material particles on the lower surface of the first layer of micro-nano material self-assembled structure to form a second layer of micro-nano material self-assembled structure; repeating the above steps according to the type of micro-nano material and the number of layers required, obtaining multi-layer composite self-assembled structure of micro-nano materials, and types of micro-nano particles in each layer are not completely the same; and drying micro-nano material multilayer composite self-assembled structure to obtain the micro-nano material multilayer composite film. An INDEPENDENT CLAIM is also included for the micro-nano material multilayer composite film is prepared by above mentioned method.