Abstract

In order to improve the flexibility, water solubility and viscosity of epoxy acrylic resin and obtain the linking material for inkjet ink, epoxy acrylic resin was prepared and its properties were studied. Ring opening esterification of acrylic acid (AA) withepoxy diluent (ED) and epoxy resin (E-51) was carried out. The modified epoxy acrylic resin was prepared by esterification and neutralization of trimellitic anhydride (TMA) and maleic anhydride (MA), 2-(Dimethylamino) ethyl methacrylate (DMAEMA) and triethylamine (TEA) respectively. The results showed that when the mole ratio of reaction groups ED:E-51 = 2:1, TMA:MA = 1:4 and DMAEMA:TEA = 1:3, the synthetic properties of epoxy acrylic resin were the best. The test results of the properties of the synthetic resin showed that the viscosity value was 15 mPa · s, the average particle size was less than 0.2 micron, the surface tension was 35 mN/m, the water solubility, stability and mechanical properties of the paint film were good. The prepared epoxy acrylic resin can be used in inkjet printing ink system.

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