A kind of high thermal conductivity photocurable coating for optical fiber, and its preparation and application

Abstract

The invention discloses a high-thermal-conductivity photocureable coating for an optical fiber and a preparation method and an application of the high-thermal-conductivity photocureable coating. The coating contains acrylate resin, vinyl silane coupling agent modified inorganic heat-conducting particles, an active diluent and a photoinitiator, wherein the vinyl silane coupling agent modified inorganic heat-conducting particles are 2.5wt%-60wt% of weight of the acrylate resin, the active diluent is 10wt%-50wt% of weight of the acrylate resin, and the photoinitiator is 1wt%-10wt% of weight of the acrylate resin. Compared with the prior art, by improving the type, proportion and corresponding preparation methods of substances of key constituents in the coating (including the design of integral process flow of the preparation method and the type and ratio of reaction raw materials, reaction temperature and time of each step), the problems that a coating layer formed after an existing optical fiber coating is solidified is low in heat conductivity coefficient and relatively high in thermal expansion coefficient can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a high-thermal-conductivity light-curing coating for optical fibers, and its preparation and application. Background technique [0002] Optical fibers are widely used in communication, light energy transmission and other fields, laying a solid foundation for the rapid development of modern communication technology. Optical fiber coatings play an important role in protecting optical fibers and stabilizing optical fiber transmission performance, and are an indispensable part of communication optical fibers. Among them, UV-curable coatings are the main variety of optical fiber coatings. Although the optical fiber coating cured by the traditional UV-curable coating has the advantages of high hardness, good gloss, and chemical corrosion resistance, its disadvantages of low thermal conductivity and large thermal expansion coefficient limit its application in areas with lar...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects or improvement needs of optical fiber coatings such as low thermal conductivity and large thermal expansion in the prior art, the purpose of the present invention is to provide a high thermal conductivity photocurable coating for optical fibers, and its preparation and application. Improve the material types and proportions of the key components in the coating, as well as the corresponding preparation methods (including the design of the overall process flow of the preparation method, the types and proportions of reaction raw materials in each step, reaction temperature and time, etc.) Compared with the existing technology, it can effectively solve the problems of low thermal conductivity and high thermal expansion coefficient of the current optical fiber coating after curing and molding. Particles, so that the coating after photocuring has the characteristics of high thermal conductivity and low thermal expansion coefficient; in addition, the coating and its preparation method in the present invention can also overcome the complicated operation, cumbersome production, and economical modification in the existing modification methods. costly defects

Images