Preparation method of long-acting antifogging agent

Abstract

The invention discloses a preparation method of a long-acting antifogging agent, and belongs to the technical field of nano antifogging. The preparation method is prepared from the following components in parts by weight: 40-80 parts of ethylene glycol monoethyl ether, 10-18 parts of modified nano silicon dioxide, 10-15 parts of modified nano titanium dioxide, 4-10 parts of modified sodium lignosulphonate, 5-8 parts of mixed organic amine, 2-4 parts of a mixed dispersant, and 8-10 parts of a mixed silane coupling agent. A mixed surfactant and the ethylene glycol monoethyl ether are mixed, themodified nano silicon dioxide, the modified nano titanium dioxide, the modified sodium lignosulphonate, the mixed organic amine and the mixed silane coupling agent are added, after stirring for reaction is conducted, cooling and aging are conducted, and thus the long-acting antifogging agent is obtained. The obtained long-acting antifogging agent has the excellent abrasion resistance, antifoggingeffect and excellent persistence.

Description

technical field [0001] The invention discloses a preparation method of a long-acting anti-fog agent, which belongs to the technical field of nanometer anti-fog. Background technique [0002] Transparent materials such as glass and plastic are indispensable materials in people's daily life, work and production, but these materials often fog up in certain environments, which brings a lot of inconvenience to people, and in some cases causes serious consequence. The fogging on the surface of the glasses makes people's vision blurred; the fogging of the windshield of vehicles such as cars is a hidden danger of a large number of traffic accidents; the fogging in agricultural greenhouses greatly reduces the light transmittance of agricultural films and weakens the photosynthesis of plants. Reduced yield, easy to make vegetables sick. With the continuous improvement of material and cultural living standards, in order to reduce the inconvenience caused by atomization to people's wo...

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is: the pores between the nano-silica will be blocked by pollutants during the use of the traditional anti-fogging agent, and the hydrophilicity will be lost, while the nano-titanium dioxide has the limitation of the use conditions and must be used in an ultraviolet environment. It has hydrophilicity only in the medium, which leads to the problem that the anti-fog effect is not durable, and a preparation method of a long-acting anti-fog agent is provided.