Method for preparing high-concentration nano aluminum hydroxide aqueous dispersion and prepared product

Abstract

The invention discloses a method for preparing high-concentration nano aluminum hydroxide aqueous dispersion, which comprises the following steps of: (1) adding monoacid serving as a dispersing agent into deionized water, and regulating the pH value to be 2 to 6.5; (2) adding nano aluminum hydroxide powder with stirring for dispersing; and (3) adding a surface modifier to modify the surface of the nano aluminum hydroxide with stirring, and finally preparing the high-concentration nano aluminum hydroxide aqueous dispersion with the concentration of between 30 to 66 weight percent, wherein the step (2) and the step (3) are simultaneously or alternately performed. The prepared nano aluminum hydroxide aqueous dispersion has the characteristics of high concentration, low viscosity, high stability and the like, and is particularly suitable to be applied to blotting materials.

Description

technical field

[0001] The present invention relates to a method for preparing an aqueous dispersion of powder materials and the prepared aqueous dispersion, more specifically, the present invention relates to a high-concentration nano-aluminum hydroxide aqueous solution used for ink-absorbing materials of inkjet printing media The preparation method of the dispersion liquid and the prepared high-concentration nanometer aluminum hydroxide aqueous dispersion liquid. Background technique

[0002] The aluminum series products used for color inkjet printing photo paper inkjet media mainly include nano-alumina and nano-aluminum hydroxide. At present, nano-alumina products are mostly used, among which Degussa, Cabot and other companies are the main ones, and nano-alumina hydroxide used for ink-absorbing media is a relatively late start. As a new type of ink-absorbing medium material, only a handful of companies at home and abroad can produce nano-aluminum hydroxide used as an ink...

Images