Method for reducing volatilization of paint film pigment under high temperature vacuum environment

Abstract

The invention discloses a method for reducing the volatilization of paint film pigments in a high-temperature vacuum environment. The oxide ceramic film layer is plated on the surface of the prepared paint film. The specific process steps are as follows: Step 1: Preparation of pigment paint film: Mix the pigment into silicone paint, and use screen printing to form a paint film on the surface of polyimide film; Step 2: Plating oxide ceramic film layer: A magnetron sputtering method is used to prepare an oxide ceramic film layer on the surface of the paint film prepared in step one. By plating a layer of oxide ceramic film on the surface of the paint film, it is possible to significantly reduce the volatilization of paint film pigments in a high-temperature vacuum environment and expand the use of paint film pigments.

Description

technical field [0001] The invention relates to a method for reducing the volatilization of paint film pigments in a high-temperature vacuum environment, and belongs to the technical field of thin films. Background technique [0002] With the cross-application of science and technology in different fields, there is a new demand for the performance of materials in various complex environments. Some paint film pigments prepared on the surface of objects by spraying and printing are gradually applied in high-temperature and vacuum environments. Conditions, such as the identification of the space detector table, etc. However, the use in these new environments will cause certain limitations due to the volatilization and discoloration of paint film pigments. On the one hand, whether it is an organic pigment paint film or an inorganic pigment paint film, in a high-temperature environment, the pigment molecules of the paint film will easily detach from the base material due to inte...

AI Technical Summary

Problems solved by technology

However, the use in these new environments will cause certain limitations due to the volatilization and discoloration of paint film pigments

On the one hand, whether it is an organic pigment paint film or an inorganic pigment paint film, in a high-temperature environment, the pigment molecules of the paint film will easily detach from the base material due to intensified thermal motion, causing a certain degree of pigment volatilization; on the other hand, in a vacuum environment, The saturated vapor pressure of paint film pigments decreases, which intensifies the volatilization of paint film pigments

Therefore, under the environmental conditions of high temperature and vacuum, the application of paint film pigments will be limited due to serious volatilization problems.

[0003] In order to solve the problem of volatilization of paint film pigments under high temperature and vacuum conditions, some people use the method of increasing the ratio of pigment (material) to base (material), which not only increases the proportion of pigments, but also makes the paint film volatilize under high temperature and vacuum conditions. A certain amount of pigment can still maintain the pigment-base ratio that meets the requirements of use, but this method does not directly reduce the problem of pigment volatilization of the paint film, and at the same time it will bring greater vacuum volatilization and quality loss. In the environment that is sensitive to pollution Under the conditions of use (such as space optical lens, etc.), it will cause certain application limitations