Glass antifogging agent and preparation method thereof

Abstract

The invention discloses a glass antifogging agent and a preparation method thereof. The glass antifogging agent comprises a solution A and a solution B in a ratio of 5:1. The solution A comprises the following components in parts by weight: 7-18 parts of polyvinyl alcohol, 200-370 parts of water, 20-100 parts of diethanolamine, 10-50 parts of tallow alkyl propanolamine, 20-60 parts of isopropanol, 12-35 parts of 3 mol/L hydrochloric acid, 0.6-6.5 parts of 40 wt% acetaldehyde and 6-17 parts of potassium dichromate. The solution B comprises the following components in parts by weight: 7-16 parts of polyoxyethylene surfactant, 10-25 parts of sodium hexametaphosphate, 5-25 parts of sodium pentachlorophenate, 2-7 parts of soap flake adhesive, 8-19 parts of ethyl silicate, 7-22 parts of gamma-glycidoxypropyltrimethoxysilane, 11-32 parts of ethanol and 1.3-9.5 parts of glacial acetic acid. Thereby, after use, the glass antifogging agent has sufficient surface strength, is clean and harmless, can not do harm to the humans or livestock, is simple to use, and has the advantages of favorable antifogging effects, long technical effective time (up to half a year or more) and no environment pollution; and the manufacturing technique is simple, so the cost is lower.

Description

technical field [0001] The invention relates to the technical field of antifogging agents, in particular to a glass antifogging agent and a preparation method thereof. Background technique [0002] When there is a temperature difference between the two sides of the glass, the moisture in the air will condense on the glass to form fog. If the temperature is too low, frost may even form, thereby reducing the light transmittance of the glass and affecting the sight line. In daily life, fog has caused us a lot of troubles. For example, when walking from a cold outdoor to a warm indoor, fog will be formed on the lens of the glasses. Covering with a layer of fog, etc. In order to eliminate the water mist on the glass surface, a large number of glass anti-fog products have appeared on the market, and the ways of expression are also different. [0003] However, these products have some common disadvantages: the glass needs to be cleaned before use, and the anti-fog effect cannot be...

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Problems solved by technology

[0003] However, these products have some common disadvantages: the glass needs to be cleaned before use, and the anti-fog effect cannot be maintained after contact with water. The product itself has a certain alkalinity, and long-term use will cause certain damage to the health of the user. The anti-fog effect lasts for a short time and needs to be sprayed repeatedly

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