Optical lens composite resin material with high refractive index and high light transmittance

Abstract

The invention discloses an optical lens composite resin material with high refractive index and high light transmittance. The optical lens composite resin material comprises the following components in parts by weight: 60-84 parts of matrix resin, 1-4 parts of a UV absorbent and 0.05-0.2 parts of an antioxidant, wherein the matrix resin is prepared according to the following steps: (1) preparing p-mercaptobenzoic acid surface modified nano zinc sulfide; (2) preparing hydroxyl-terminated polystyrene; and (3) dissolving the hydroxyl-terminated polystyrene synthesized in the step (2) in a tetrahydrofuran solvent, then adding p-mercaptobenzoic acid surface modified nano zinc sulfide, performing reacting for 3-5 hours under a stirring condition, and then hydrolyzing and drying to obtain the matrix resin. According to the invention, polystyrene is subjected to hydroxylation modification, a polystyrene system is endowed with reactive active hydroxyl groups, and terminal hydroxyl groups and carboxyl groups on the surface of the nano zinc sulfide can be subjected to polycondensation, so that the dispersity of the nano zinc sulfide in the polystyrene system is greatly improved, the resin material has higher refractive index, and the high transparency of the resin is ensured.

Description

technical field [0001] The invention relates to an optical lens composite resin material with high refractive index and high light transmittance. Background technique [0002] Compared with optical glass, optical resin has the advantages of light weight, easy dyeing and unbreakability, and is widely used in the fields of spectacle lenses, optical disc substrates, optical lenses, and prisms; Defects such as heavy weight have greatly affected the safety and comfort of myopia patients wearing glasses, so they are gradually replaced by resin lenses. Among them, medium and high refractive index optical resin lenses are favored by users for their unique advantages such as high light transmittance, UV protection, and ultra-thin; usually, in the lens industry, a high refractive index is defined as a refractive index above 1.60. 1.56 is a medium refractive index, and a refractive index below 1.56 is a low refractive index. Under the same premise, the higher the refractive index of t...

AI Technical Summary

Problems solved by technology

Among them, medium and high refractive index optical resin lenses are favored by users for their unique advantages such as high light transmittance, UV protection, and ultra-thin; usually, in the lens industry, a high refractive index is defined as a refractive index above 1.60. 1.56 is a medium refractive index, and a refractive index below 1.56 is a low refractive index. Under the same premise, the higher the refractive index of the lens, the thinner and lighter the lens; most of the optical resins in the domestic market currently have a refractive index below 1.60. , there are fewer optical materials with a refractive index above 1.6, and fewer optical materials with a refractive index above 1.7; polystyrene has high light transmission and high refractive index that most polymers do not have, and has great application prospects in the optical field , but the simple polystyrene polymer system is far from meeting the refractive index requirements of optical resins