Drill a small hole in a wooden barrel filled with water and then use a light to illuminate the water surface from above the barrel. Next, an amazing scene happens as the water flows out of the hole, the light also presents a curved trajectory, as if the light is ‘captured’ by the water flow.

Bisphenol A epoxy acrylate is prepared by the reaction of bisphenol A epoxy resin and acrylic acid. Bisphenol A epoxy resin is produced by the reaction of bisphenol A and epichlorohydrin under alkaline conditions. By controlling the ratio of the two raw materials and the reaction conditions, bisphenol A epoxy resins with different polymerization degrees can be obtained. The higher the polymerization degree, the larger the molecular weight and the smaller the epoxy value.