Novel organic and inorganic hybrid silicon resin nano particles and preparation method

Abstract

The invention discloses organic and inorganic hybrid silicon resin nano particles and a preparation method. The organic and inorganic hybrid silicon resin nano particles of which the particle size ranges from 300 nm to 900 nm are obtained through a one-step method of conducting hydrolysis and precipitation on bis(trichlorosilyl)ethane in an alcohol-water solution. The nano particles have the advantage that inorganic white carbon black modifies the mechanical property of a polymer, an organic carbon chain is directly introduced into a molecular chain structure, the compatibility of the particles and polymer materials can be improved, the degree of dispersion of the particles is improved, the strength between the particles and a polymer chain is strengthened, the modification effect of the particles is improved, and the great application potential on toughness and modification of the polymer is achieved. According to the preparation method, the production process is simple, the requirements on raw materials and equipment are low, and a polycondensation reaction of silicon hydroxyl is reduced by adopting the alcohol-water solution; the nano-size particles can be obtained, and the nano-size particles have the advantages of being small in particle size, large in specific surface area and high in degree of dispersion; a large amount of alcohol is adopted for treatment in later period, the number of silicon hydroxyl on the surfaces of the nano particles is decreased, and the compatibility of the particles and the polymer is improved.

Description

technical field [0001] The invention relates to a new structure organic silicon resin nano material, in particular to a method for preparing organic-inorganic hybrid silicon resin nano particles by a precipitation method. Background technique [0002] Silica is an important polymer modification material. White carbon black is amorphous hydrated silicon dioxide, the molecular formula is SiO 2 ·H 2 O is a white, odorless, powdery material with excellent properties such as high dispersibility, chemical stability, high temperature resistance, and good electrical insulation. It is often used in the improvement of materials such as plastics, rubber, coatings, and adhesives. It has a very obvious improvement on the mechanical properties of the material, and can improve its tear resistance, tensile breaking strength, etc. [0003] There are often a large number of hydroxyl groups on the surface of silica, so it is more hydrophilic. However, when industrially using silica and poly...

AI Technical Summary

Problems solved by technology

However, due to the need for secondary modification, it not only increases the cost, but the secondary processing also affects the particle size and other properties of silica, which can easily cause the agglomeration of silica and reduce the modification effect.

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