The charm of optical acrylic sheet

Optical acrylic sheet, Its bonding requires special glue, called OCA optical glue.

This is a special adhesive used to bond transparent optical components (such as lenses, etc.). It is required to be colorless and transparent, light transmittance above 90%, good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage. OCA optical glue is one of the important raw materials for touch screens. It is made of optical acrylic adhesive without a substrate, and then a layer of release film is attached to the upper and lower bottom layers. It is a double-sided adhesive tape without a substrate.

In short, OCA is an optically transparent layer of special double-sided tape without a substrate.

Its advantages are clarity, high light transmittance (full light transmittance> 99%), high adhesion, high weather resistance, water resistance, high temperature resistance, UV resistance, controlled thickness, uniform spacing, and long Time use will not cause yellowing (yellowing), peeling and deterioration.

OCA optical adhesives are divided into two categories, one is resistive and the other is capacitive. Resistive optical adhesives can be divided into 50um and 25um according to different thicknesses. Capacitive optical adhesives are divided into 100um and 175um. , 200um, 250um.

OCA optical glue can be used in different fields according to the thickness. Its main uses are: electronic paper, transparent device bonding, projection screen assembly, aerospace or military optical device assembly, display assembly, lens assembly, resistive touch screen G{{ 0}}F+F, F+F, capacitive touch screen, panel, ICON, glass and polycarbonate and other plastic materials are used for bonding transparent optical components (such as lenses, etc.) Special adhesives. It is required to be colorless and transparent, light transmittance above 90%, good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage. Silicone rubber, acrylic resin, unsaturated polyester, polyurethane, epoxy resin and other adhesives can all bond optical components. Some treatment agents are usually added during formulation to improve its optical properties or reduce curing shrinkage. It is suitable for various films and screens (acrylic, glass screens, touch screens, etc.) around the display of fixed and mobile devices.