| abstract |
The invention provides a UV solvent-free optical adhesive and a preparation method thereof, comprising 50-95 parts of alkyl acrylate, 1-30 parts of acrylate with aliphatic cyclic side chains, 1-30 parts of polar ring acrylic acid ester with like side chain, 1-30 parts of polar group-containing acrylate, 0.01-5 parts of multifunctional acrylate, 0.02-2.0 parts of photoinitiator. The optical adhesive provided by the invention carries out molecular design by introducing polar cyclic structure and non-polar cyclic structure, and strengthens the polar part and non-polar part in the polymer segment while controlling the glass transition temperature of the material It can improve the optical performance, high temperature and humidity resistance, and boil-white properties of the optically transparent film, and has good ink filling performance and easy rework. |