A kind of primer and preparation method thereof

Abstract

The invention provides a primer and a preparation method thereof. The primer comprises the following components in parts by weight: 75-98 parts of oil paint, 2-25 parts of metal reduced powder and 0.1-10 parts of reductive auxiliary. Compared with the prior art, the primer provided by the invention has the advantages that the primer contains metal reduced powder, the metal reduced powder can also be used as an initiator when a metal layer is formed on the surface of the primer, and metal ions in chemical plating, electroplating or waterborne metal primer are adsorbed on the surface by means of the reducibility of the metal reduced powder and are reduced to from metal so as to form an active center, so that the metal reduced powder plays a role in catalyzing the reduction of the metal ions, and a metal coating with a certain thickness is obtained by means of the reduction effect of metal; meanwhile, the primer contains metal reduced powder and reductive auxiliary, and the adsorption force between the metal layer and a primer layer can be stronger by sufficiently utilizing metal bonds, covalent bonds, a Van der Waals force and the like, so that pretreatment processes such as sensitization, activation and the like are not needed.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, in particular to a primer and a preparation method thereof. Background technique [0002] Surface metallization of non-metallic materials is to use a certain surface treatment process to form a metal layer on the non-metallic surface, so as to achieve the purpose of wear resistance, anti-corrosion and decoration, and to endow non-metallic materials with some new performance. Surface metallization of non-metallic materials is an important research field for the development of new materials. For example, the development and research of some superhard materials will use the technology of surface metallization of non-metallic materials. [0003] Surface metallization of non-metallic materials has a long history in our country. Since the invention of alchemy in ancient my country, some skilled craftsmen have known to make gold into thin gold foil and paste it on non-metallic surfaces to mak...

AI Technical Summary

Problems solved by technology

The bonding force between these materials and the covering metal layer on the surface is very weak, and the influence of the outer surface is more prominent, that is to say, the bonding strength between these materials and the metal covering layer is low, in order to improve the bonding between the substrate and the coating Before the non-metallic surface is metallized, the surface must be treated to obtain the ideal surface formation state and increase its wettability. In addition, some processes that endow the surface of the non-metallic material with catalytic activity will affect its metallization. Cohesion of layers

[0005] Since the existing surface metallization process needs to go through pre-treatment processes, such as sensitization, activation and other steps, the surface metallization process is complicated, time-consuming and labor-intensive, and will pollute the environment