UV/moisture dual-curing resin and synthesis method thereof

• Main Authors: XIE HAIHUA, PAN GUANGJUN, WANG JIANBIN, CHEN TIANAN
• Format: Patent
• Language: English
• Published: 22.07.2015
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides a synthesis method of UV/moisture dual-curing resin. The method comprises the following steps: placing HDI tripolymer, hydroxied acrylates, polymerization inhibitor hydroquinone monomethylether and catalyst dibutyltin dilaurate into a three-mouth flask with a thermometer, heating the three-mouth flask to 65 DEG C, dropwise adding bis(gamma-trimethoxysilyl propyl)amine, controlling the temperature at 70 to 75 DEG C, and carrying out the reaction for 2 to 3 hours; analyzing NCO groups by utilizing an infrared spectrograph, and stopping the heating reaction when the NCO value is not changed, thereby obtaining the UV/moisture dual-curing resin. The resin can be optically cured by virtue of UV and also can be cured by virtue of moisture, so that the problem that a shadow part cannot be cured in the optical polymerization process; moreover, compared with the resin adopting isocyanate as a reaction group curing-sealing end, the resin adopting methoxylsilane as the moisture curing reaction group is more stable in reaction speed and cured resin effect, and the further curing effect of the product is better.