Epoxy acrylate ultraviolet curing material and preparation method thereof
A technology of epoxy acrylate and curing materials, which is applied in the direction of epoxy resin coatings, fireproof coatings, coatings, etc., and can solve problems such as the effect of photoinitiators, the limitation of photoinitiator solubility, and the need to improve curing efficiency.
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[0057] The second aspect of the present invention provides a method for preparing an epoxy acrylate UV-curable material. The preparation process of epoxy acrylate ultraviolet light curing material of the present invention mainly comprises:
[0058] Step 1: Mix the pre-weighed bisphenol A epoxy acrylate, composite reactive diluent and photoinitiator to obtain an intermediate product, wherein the composite reactive diluent is a monofunctional reactive diluent and a multifunctional reactive diluent mixture;
[0059] Step 2: standing the intermediate product to obtain a supernatant;
[0060] Step 3: apply the supernatant to the surface of the substrate;
[0061] Step 4: Curing the supernatant liquid on the surface of the substrate with ultraviolet light radiation to obtain an epoxy acrylate ultraviolet light curing material.
[0062] Preferably, the mass percentages of bisphenol A type epoxy acrylate, composite reactive diluent and photoinitiator are 38-60%: 38-60%: 0-4%.
[0...
Embodiment 1
[0086] Add pre-weighed bisphenol A epoxy acrylate (EA), methyl methacrylate (MMA), trimethylolpropane triacrylate (TMPTA), triethanolamine (Tris), 2-hydroxy -2-Methyl-1-phenyl-1-propanone (1173), stir well;
[0087] Stand in the dark (eliminate air bubbles) to obtain the supernatant;
[0088] Spread the supernatant evenly on the substrate with a thickness of about 0.2-0.3mm;
[0089] Illuminate with LED ultraviolet light and fill with nitrogen to make it solidify and form a film.
[0090] The specific weighing results are shown in Table 1 (unit: g).
[0091] Table 1
[0092]
[0093] In the present invention, the performance of the cured material in the above-mentioned embodiment 1 has been tested, and the performance of the cured material is as shown in Table 2:
[0094] Table 2
[0095]
[0096] As can be seen from Table 2, the performance of the cured material obtained according to the different formulations of Example 1 is also different. According to Table 2, i...
Embodiment 2
[0099] Add 1.333g epoxy acrylate (EA), 1.4g triethylene glycol dimethacrylate (TEGDMA), 0.60g methyl methacrylate (MMA), 0.14g triethanolamine (Tris), 0.30g to the container Acrylic acid (AA), 0.14g KH570, 0.1332g 1173, stir well;
[0100] Stand in the dark (eliminate air bubbles) to obtain the supernatant;
[0101] Spread the supernatant evenly on the substrate with a thickness of about 0.2-0.3mm;
[0102] Illuminate with LED ultraviolet light and fill with nitrogen gas to cure and form a film, which is recorded as 28, and is ready for use. The performance test results of the obtained cured material are shown in Table 3 below.
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