Anti-blue-light ultraviolet curable acrylate optical adhesive film and preparation method as well as application thereof

Abstract

The invention belongs to the field of optical adhesives, and discloses an anti-blue-light ultraviolet curable acrylate optical adhesive film and a preparation method as well as application thereof. The acrylate optical adhesive film consists of the following components in percentage by mass: 98-99.5 percent of ultraviolet polymerized pre-polymer adhesive, 0.05-0.6 percent of ultraviolet initiator, 0.3-1.0 percent of antioxidant and 0.1-0.5 percent of blue light absorbent. Non-solvent ultraviolet polymerization is adopted in synthesis of the ultraviolet polymerized pre-polymer adhesive; the film has the advantages of high reaction efficiency, convenience in control and low energy consumption. The optical film prepared by optical adhesive composition has the advantages that high transparency, moderate adhesion and no adhesive residue after stripping are realized, the harmful blue light emitted by an electronic screen can be absorbed to effectively protect eyes of users, the adhesive film is slightly alkaline and can resist against the corrosion of conductive boards such as ITO (Indium Tin Oxide) of a certain quantity of acid and the like, can be mainly used for related electronic industries such as the ITO films, display components and touch screen components.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to an anti-blue light ultraviolet light curing acrylate optical adhesive film and its preparation method and application. Background technique [0002] With the development of society, the use of electronic products is becoming more and more popular. People can hardly do without the use of electronic products such as computers and mobile phones in their daily work and life. Optical adhesive (OCA) plays an important role in the displays of various electronic products. The main characteristics of OCA film are good transparency, light transmittance above 90%, good plasticity and moderate bonding strength, which is convenient for filling and bonding between layers, and can be peeled off when needed. The residual glue is pollution-free. However, OCA adhesives currently on the market generally have two major shortcomings: First, solvent-based thermal polymerization and thermal curin...

AI Technical Summary

Problems solved by technology

However, OCA adhesives currently on the market generally have two major shortcomings: First, solvent-based thermal polymerization and thermal curing are basically used to form films when synthesizing adhesive prepolymers and coating them into optical films. Due to the volatilization of solvents during the production process It will cause pollution to the environment and cause certain harm to human health; the second is that OCA optical glue does not have the function of preventing blue light. Studies have shown that blue light in the wavelength range of 370nm to 450nm can pass through the cornea and lens of the eye and reach the retina directly, so like The screens of electronic products such as computers, mobile phones, and learning machines, especially when the brightness is high, are extremely harmful to the human eye.

Images