Method for preparing photocurable resin from animal and vegetable triglyceride and photocurable resin prepared by method
A technology of photocurable resin and triglyceride, which is applied in the field of polymer materials, can solve problems such as the lack of photocurable resin, achieve the effects of improving strength and adhesion performance, increasing resin molecular weight and viscosity, and improving photocrosslinking reaction efficiency
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Embodiment 1
[0063] Add 80 g of SMA resin (Mn 1100, maleic anhydride unit weight content 48%, maleic anhydride mole number is 0.39mol) to 100 g trimethylolpropane triacrylate monomer, add 0.2 g p-methoxyphenol As a polymerization inhibitor, stir and heat to 80°C to dissolve the SMA resin as much as possible, add 1 g of N,N-dimethylbenzylamine as a catalyst, and slowly add 148.6 g of palmitic acid diglyceride (hydroxyl value 103.5 mgKOH / g, the number of moles of hydroxyl groups is 0.27mol, and the content of monohydroxy fatty acid diglyceride is 100%), the addition is completed in 2 hours, and the reaction is continued with stirring and heating at 80°C for 4 hours until the acid value of the system tends to be stable.
[0064] Then add 55 g of pentaerythritol triacrylate (the actual hydroxyl value is 165.3 mgKOH / g, the molar number of hydroxyl is 0.16mol) and the remaining anhydride group (the molar number of the remaining anhydride is 0.12mol) for ring-opening esterification, and add 0.5 g ...
Embodiment 2
[0067] Add 80 g of SMA resin (Mn 1100, maleic anhydride unit weight content 48%, maleic anhydride mole number is 0.39mol) to 100 g trimethylolpropane triacrylate monomer, add 0.2 g p-methoxyphenol As a polymerization inhibitor, stir and heat to 80°C to dissolve the SMA resin as much as possible, add 1 g of N,N-dimethylbenzylamine as a catalyst, and slowly add 66 g of commercially available palm oil-derived diacylglycerol through the addition funnel Esters (hydroxyl value 134.8 mgKOH / g, hydroxyl molarity 0.16 mol, monohydroxy fatty acid diglyceride content 85%, add in 1 hour, continue stirring and heating at 80°C for 2 hours until the acid value of the system tends to be stable.
[0068] Then add 21 g of hydroxyethyl acrylate (0.18 mol of hydroxyl mole) and 30 g of pentaerythritol triacrylate (0.09 mol of hydroxyl mole) and the remaining acid anhydride (0.23 mol of acid anhydride) group ring-opening esterification, and add 0.5 g p-methoxyphenol, maintain the original heating te...
Embodiment 3
[0071] Add 80 g of SMA resin (Mn 1100, maleic anhydride (maleic anhydride mole number is 0.39mol) unit weight content 48%) to 100 g of trimethylolpropane triacrylate monomer, add 0.2 g of p-methoxy Phenol is used as a polymerization inhibitor, stirred and heated to 80°C to dissolve the SMA resin as much as possible, add 1 g of N,N-dimethylbenzylamine as a catalyst, and slowly add 92.4 g of commercially available lard-derived glycerin through the addition funnel Mixed solution of diester (0.19 mol of hydroxyl group) (hydroxyl value 115.8 mgKOH / g, monohydroxy fatty acid diglyceride content of 90%) and 26.6 g of pentaerythritol triacrylate (0.08 mol of hydroxyl group), 2 hours After the addition, continue to stir and heat the reaction at 80°C for 2 hours until the acid value of the system tends to be stable.
[0072] Then add 14 g of hydroxyethyl acrylate (0.12 mol of hydroxyl group) and the remaining anhydride group (0.12 mol of the remaining anhydride) for ring-opening esterifi...
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