The invention discloses an OCA optical
adhesive and a preparation method thereof, and relates to the technical field of adhesives, and the OCA optical
adhesive is prepared from the following raw materials in parts by weight: 35-45 parts of
acrylate-terminated hyperbranched
organosilicon modified
polyurethane, 2-4 parts of allyl succinimido
carbonate, 1-3 parts of hexafluorobisphenol A diacrylate, 1-3 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 3-pentanediol The invention relates to a photocurable
adhesive, which is prepared from the following components in parts by weight: 20 to 30 parts of a
diluent, 0.6 to 1.2 parts of a
photoinitiator, 0.5 to 1 part of an
antioxidant and 0.5 to 1 part of a de-
foaming agent. The photocurable adhesive is prepared from the following components in parts by weight: 1 to 5 parts of 1, 3-bis (oxiranyl methyl)-5-(2-
propenyl)-1, 3, 5-
triazine-2, 4, 6 (1H, 3H, 5H)-
triketone, 3 to 5 parts of 2, 2 '-bis (
trifluoromethyl) diaminodiphenyl, 6 to 8 parts of other polymerizable monomers, 20 to 30 parts of the
diluent, 0.6 to 1.2 parts of the
photoinitiator, 0.5 to 1 part of the
antioxidant and 0.5 to 1 part of the de-
foaming agent. The OCA optical adhesive is good in bonding performance, sufficient in
weather resistance and
environmental protection performance and good in oil resistance.