Simple method for preparing fluorine-containing polyurethane monodisperse microspheres in high-yield manner

Abstract

The invention relates to a simple method for preparing fluorine-containing polyurethane monodisperse microspheres in a high-yield manner. The method comprises the following steps: by adopting diisocyanate, ordinary polyhydric alcohols and fluorine-containing polyhydric alcohols as monomers, performing the precipitation and polymerization in a reaction medium, and separating, washing and drying anobtained product, thus obtaining the fluorine-containing polyurethane monodisperse microspheres. By adopting the method, the consumption of the monomers and the yield of the microspheres are high whenthe fluorine-containing microspheres are prepared, the reaction time is short, the operation is simple, the production cost and the energy consumption are relatively low, and the mass production is facilitated. No initiator, catalyst or stabilizer is needed in the polymerization process, and the obtained fluorine-containing polymer microspheres are highly clean. By adjusting the conditions such as the consumption of the fluorine-containing polyhydric alcohols and the total amount of the monomers, the hydrophobic performance of the product and the particle size of the microspheres can be effectively controlled, and different requirements in different fields on the microspheres can be met.

Description

technical field [0001] The invention relates to a convenient method for preparing monodisperse fluorine-containing polymer microspheres with high yield, and belongs to the field of functional polymer materials. Background technique [0002] Superhydrophobic materials have important applications in the fields of self-cleaning, antifouling, and waterproofing, and have attracted widespread attention from scientists. Superhydrophobic materials generally have rough micro-nano structures or substances with low surface energy. In order to improve the hydrophobicity, it is very effective to increase the roughness of the surface of the material. In nature, many substances have superhydrophobic ability due to the uneven micro-nano structure on the surface, the most representative one is the lotus leaf. By reducing the surface energy of the material, its hydrophobic ability can be improved. Fluorine-containing polymer materials are often used to prepare superhydrophobic materials du...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of cumbersome steps in the preparation of fluoropolymer monodisperse microspheres, less monomer consumption and low microsphere yield in the prior art, the present invention provides a simple method for preparing fluorine-containing polyurethane monodisperse microspheres with high yield. Method for Rapid and High Yield Preparation of Fluoropolymer Monodisperse Microspheres

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