High solid content stable-stored nanometer zinc oxide concentrated slurry and its preparation process

Abstract

The invention belongs to the area of nano material, refers to the concentrated plasma of nano zinc oxide that contains much solid and can be stored stably and its preparing process. The concentrated plasma contains 40-80% of nano zinc oxide the average size of which is less than 50nm, 1-15% of dispersing agent, 0.1-2% of defoaming agent, residual water, that is produced after the processes of homogeneous mixture, dispersion, abrasion and etc. The dispersing agent that is used is commercial dispersing agent suitable for water system, not containing some poison materials such as benzene, formaldehyde and etc, and passing American FDA certification, so that is innocuous for not only human and also environment absolutely. The inventive concentrated plasma of nano zinc oxide contains more solid, and has low viscosity, excellent dispersibility and stability, can hardly pollute environment, processes simply and has extensive applicability, so that can be used in many areas, such as ceramics, coating mixture, rubber, daily cosmetic product, magnetic material and electronic material.

Description

technical field [0001] The invention belongs to the field of nanomaterials, and specifically relates to a high-solid-content storage-stable nano-zinc oxide concentrated slurry and its preparation process. The nano-zinc oxide and a certain amount of dispersant, Foaming agent and water are mixed to obtain water-based nano-zinc oxide concentrate slurry with excellent performance in all aspects. Background technique [0002] Nano zinc oxide is a functional material with a wide range of uses. It has optical, magnetic, thermal and sensitive properties that conventional bulk materials do not have. The product has high activity and has anti-infrared, ultraviolet and anti-virus and sterilization functions. It is mainly used in the following Field: (1) Rubber industry: The rubber industry is the largest user of zinc oxide. Nano-zinc oxide is used to manufacture high-speed and wear-resistant rubber products, such as aircraft tires and radial tires for high-end cars. Long service life ...

AI Technical Summary

Problems solved by technology

Chinese patent 02121246.5 reports multifunctional nano-zinc oxide suspoemulsion and its preparation method. In this method, nano-zinc oxide is modified. The preparation method is relatively complicated, and the content of nano-zinc oxide is also low.

Chinese patent 02159055.9 refers to surface-modified nano-zinc oxide dispersions and their preparation methods and uses, which are SiO 2 、Al 2 o 3 , Fe 2 o 3 It is deposited on the surface of nano-zinc oxide, and then mixed with silane coupling agent, water-soluble polymer and water. This dispersion is specially used to prepare UV-resistant textiles, and its application range is narrow

In addition, the nano zinc oxide developed by US Patent 5,914,101 has a solid content of 40-75%, but the zinc oxide has to undergo a complicated modification process before being dispersed, and the process is relatively cumbersome