UV solidified liquid optical cement and preparation method and application thereof
An optical glue, liquid technology, applied in the direction of adhesives, non-polymer organic compound adhesives, film/flake adhesives, etc. Effects of ductility, high adhesion, low cure shrinkage
Inactive Publication Date: 2016-01-06
SOUTH CHINA AGRI UNIV
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Problems solved by technology
Since the use of optical glue involves two bonded interfaces, the stress and volume defects caused by volume shrinkage during the curing process
Method used
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The invention discloses UV solidified liquid optical cement. The UV solidified liquid optical cement is prepared from, by weight, 40%-60% of prepolymer, 5%-25% of expanding monomer, 15%-30% of reactive diluent, 1%-8% of photoinitiator, 5%-20% of plasticizer, 5%-20% of coupling reagents and 0.5%-3% of auxiliaries. The invention further discloses a preparation method and application of the UV solidified liquid optical cement. The UV solidified liquid optical cement has a low curing shrinkage rate, high light transparency, high binding force and rapid curing capacity, an obtained solidified layer has high ductility and relatively-low hardness, and the UV solidified liquid optical cement can be widely used for binding optical elements, for example, various electronic elements including capacitive screens, display lenses and the like.
Description
technical field [0001] The invention relates to the field of adhesives, in particular to a UV-curable liquid optical adhesive. The invention also relates to the preparation method and application of the optical glue. Background technique [0002] UV curable liquid optical adhesive has achieved rapid development since its inception. Compared with traditional tapes, UV curable liquid optical adhesive has good leveling properties, low odor, fast curing speed, high bonding strength, low production energy consumption, and excellent curing process. The advantages of automatic operation and so on. [0003] At present, most (95%) of UV-curable liquid optical adhesives are still acrylate systems. The curing mechanism of this system is free radical polymerization, which is characterized by a large curing shrinkage rate, generally above 5%. Since the use of optical glue involves two bonded interfaces, the stress and volume defects caused by volume shrinkage during the curing process...
Claims
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Login to view more IPC IPC(8): C09J175/14C09J163/10C09J167/06C09J4/02C09J4/06C09J11/06C09J11/08C09J7/02
Inventor 杨卓鸿黄家健袁腾周健周闯
Owner SOUTH CHINA AGRI UNIV
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