A kind of preparation method of grease-based dual curing resin monomer

Abstract

The invention relates to a preparation method of an oil based dual curable resin monomer. The specific method includes: subjecting a certain amount of oil polyacid, glycidyl methacrylate, a catalyst and a polymerization inhibitor to heating reaction to obtain an ultraviolet curable intermediate A, and then reacting the obtained intermediate A with isocyanate containing siloxane group, thus obtaining the ultraviolet curable and moisture curable oil based dual curable resin monomer. The oil based dual curable resin monomer prepared by the method provided by the invention can be used for dual curing in a way combining ultraviolet curing and moisture curing, and solves the difficult application problem of single ultraviolet curing between non-transparent materials, on complicatedly shaped substrates, in super-thick coatings and colored coatings, etc. At the same time, ultraviolet and moisture dual curing obtained by combining ultraviolet curing and moisture curing is a relatively hot dual curing technology in current research and development, and has a promoting effect for application of the dual curable resin monomer in other fields, also the used raw materials are all from renewable resources.

Description

technical field

[0001] The invention belongs to the field of dual-curing resin monomers, in particular to a preparation method of grease-based dual-curing resin monomers. Background technique

[0002] UV curing relies on ultraviolet light to stimulate the photoinitiator in the system to generate cations or free radicals, and the generated free radicals or cations can initiate polymerization reactions between various functional groups such as unsaturated double bonds and epoxy groups to form cross-linked polymers. Combined solidified structure. This technology is a brand-new green and environment-friendly new technology developed in the 1970s, because the ultraviolet light technology has low VOC emissions, and at the same time has a fast curing speed, saves energy, has little pollution, and has good comprehensive performance of the cured film. Solid this kind of technology has been widely used in coatings, aerospace, electronic packaging, electronics industry and many other ...

Examples

Embodiment 1

[0019] Add the dimerized fatty acid into the reactor, raise the temperature to 70°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of dimerized fatty acid to glycidyl methacrylate 1:2, and then add the Add 0.5% dodecyltrimethoxyammonium chloride and 0.1% 2,5-di-tert-butylhydroquinone to the total mass of the mixture, raise the temperature to 120° C. and keep stirring for 2.5 hours to obtain intermediate product A. Then, the intermediate product A and propyltrimethoxysilane isocyanate were added into the reactor at a molar ratio of 1:2, and reacted at 25° C. for 4 hours to obtain a UV-moisture dual-curable resin monomer.

Embodiment 2

[0021] Add citronic acid dibasic acid to the reactor, heat up to 80°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of citric acid dibasic acid to glycidyl methacrylate 1:2 , and then add 0.1% octadecyldimethylbenzyl ammonium chloride and 0.5% hydroquinone, which account for the total mass of the above reactants, and heat up to 115° C. and continue to stir for 1.5 h to obtain intermediate product A. Then, the intermediate product A and propyltriethoxysilane isocyanate were added into the reactor at a molar ratio of 1:4, and reacted at 60°C for 2 hours to obtain a UV-moisture dual-curable resin monomer.

Embodiment 3

[0023] Add tung oil maleic acid into the reactor, heat up to 75°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of tung oil maleic acid to glycidyl methacrylate 1:3, and then Add 1.0% octadecyl dimethyl hydroxyethyl ammonium perchlorate and 0.3% 2,5-di-tert-butylhydroquinone, which account for the total mass of the above reactants, heat up to 120°C and continue to stir for 2.0 hours , to obtain the intermediate product A. Then, the intermediate product A and propyltrimethoxysilane isocyanate were added into the reactor at a molar ratio of 1:3, and reacted at 30°C for 3.5 hours to obtain a UV-moisture dual-curable resin monomer.

technical field

[0001] The invention belongs to the field of dual-curing resin monomers, in particular to a preparation method of grease-based dual-curing resin monomers. Background technique

[0002] UV curing relies on ultraviolet light to stimulate the photoinitiator in the system to generate cations or free radicals, and the generated free radicals or cations can initiate polymerization reactions between various functional groups such as unsaturated double bonds and epoxy groups to form cross-linked polymers. Combined solidified structure. This technology is a brand-new green and environment-friendly new technology developed in the 1970s, because the ultraviolet light technology has low VOC emissions, and at the same time has a fast curing speed, saves energy, has little pollution, and has good comprehensive performance of the cured film. Solid this kind of technology has been widely used in coatings, aerospace, electronic packaging, electronics industry and many other ...

Examples

Embodiment 1

[0019] Add the dimerized fatty acid into the reactor, raise the temperature to 70°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of dimerized fatty acid to glycidyl methacrylate 1:2, and then add the Add 0.5% dodecyltrimethoxyammonium chloride and 0.1% 2,5-di-tert-butylhydroquinone to the total mass of the mixture, raise the temperature to 120° C. and keep stirring for 2.5 hours to obtain intermediate product A. Then, the intermediate product A and propyltrimethoxysilane isocyanate were added into the reactor at a molar ratio of 1:2, and reacted at 25° C. for 4 hours to obtain a UV-moisture dual-curable resin monomer.

Embodiment 2

[0021] Add citronic acid dibasic acid to the reactor, heat up to 80°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of citric acid dibasic acid to glycidyl methacrylate 1:2 , and then add 0.1% octadecyldimethylbenzyl ammonium chloride and 0.5% hydroquinone, which account for the total mass of the above reactants, and heat up to 115° C. and continue to stir for 1.5 h to obtain intermediate product A. Then, the intermediate product A and propyltriethoxysilane isocyanate were added into the reactor at a molar ratio of 1:4, and reacted at 60°C for 2 hours to obtain a UV-moisture dual-curable resin monomer.

Embodiment 3

[0023] Add tung oil maleic acid into the reactor, heat up to 75°C, then add glycidyl methacrylate into the reaction vessel according to the molar ratio of tung oil maleic acid to glycidyl methacrylate 1:3, and then Add 1.0% octadecyl dimethyl hydroxyethyl ammonium perchlorate and 0.3% 2,5-di-tert-butylhydroquinone, which account for the total mass of the above reactants, heat up to 120°C and continue to stir for 2.0 hours , to obtain the intermediate product A. Then, the intermediate product A and propyltrimethoxysilane isocyanate were added into the reactor at a molar ratio of 1:3, and reacted at 30°C for 3.5 hours to obtain a UV-moisture dual-curable resin monomer.

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