Release agent and preparation method thereof

Abstract

The invention discloses a release agent and a preparation method thereof. The release agent is prepared from the following raw materials in percentage by mass: 26-35% of potassium hydroxide, 10-30% of hydroxyethylidene diphosphonate and 42-64% of pure water, wherein the mass percentage of the raw materials is 100% in total. The preparation method comprises the following steps: at normal temperature, pouring the pure water into a container; adding the potassium hydroxide into the container and stirring for 5-10 minutes; and after that, adding the hydroxyethylidene diphosphonate into the container and stirring for 5 minutes. The release agent disclosed by the invention has relatively low acidity and alkalinity and corrosivity, and does not cause any harm to optical glass; when a film layer on the surface of the optical glass is applied well, the film layer is removed by use of the release agent disclosed by the invention, and the optical glass can be coated with a film again, thereby bringing convenience to the film coating operation; meanwhile, the release agent does not contain substances harmful to environment such as fluorine and is good for environmental protection; and the cost of the raw materials for preparation is relatively low.

Description

technical field [0001] The invention relates to the technical field of release agent chemistry, in particular to a release agent and a preparation method thereof. [0002] Background technique [0003] In order to achieve a certain function or effect, it is usually necessary to coat the surface of the optical glass with layers such as AR film and spectroscopic film. In the optical glass lens and lens manufacturing industry, in order to improve the optical performance of the lens lens, it is necessary to coat the surface of the lens with a spectral splitting film, an anti-reflection film (anti-reflection film), an energy splitting film, a high-reflection film, etc. Coated lens is a new technology of optical film and vacuum, coated with a certain thickness of single or multi-layer optical film, so that the lens can obtain some new, excellent performance that did not have originally, so as to improve the ability of the lens to reflect light and enhance the performance of the l...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a release agent and its preparation method, which can effectively solve the problems of strong corrosion, environmental protection and high raw material cost of the existing release agent. question