Compound modified titanium and preparation method thereof

Abstract

The invention provides a compound modified titanium and preparation method thereof. The compound modified titanium comprises a kernel and an envelop layer coated on the kernel; wherein the kernel is titanium oxide, the envelop layer is composed of inorganic film coated on the kernel and organic film coated on the inorganic film, the inorganic film has two layers at least, the layer close to the kernel contains at least one of silicon dioxide and aluminium oxide, the layer far away from the kernel is coated outside the layer close to the kernel, and the layer far away from the kernel contains zirconium dioxide. In the preparation method of compound modified titanium provided by the invention, the organic envelop liquid adopts surfactant, coupling agent and water emulsion, so that the binding force of titanium oxide of the organic film after being coated by inorganic envelop is high, and dispersity of titanium in oily system is improved.

Description

【Technical field】

[0001] The invention relates to a composite modified titanium dioxide and a preparation method of the composite modified titanium dioxide, belonging to the field of chemical industry. 【Background technique】

[0002] Titanium dioxide is currently the best white inorganic pigment in the world. It is widely used in architectural outdoor coatings, automotive topcoats, and plastic-steel doors and windows. With the increasing requirements of global environmental protection, the content of organic medium needs to be reduced, so the requirements for the dispersion performance of titanium dioxide in organic medium are higher. At the same time, single-functional titanium dioxide can no longer meet people's requirements for the application performance of titanium dioxide. Therefore, it is very necessary to prepare composite titanium dioxide with high gloss, super weather resistance and high dispersion performance to meet the needs of the titanium dioxide market. of. ...