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As the vinyl ester resin has outstanding heat resistance, corrosion resistance and toughness , corrosion resistance at home and abroad have found widespread application . To obtain viscosity, low styrene content, low exothermic peak and having good toughness vinyl ester resin , this paper a unsaturated carboxylic acid with epoxy ring-opening esterification of a vinyl ester resin based on , the introduction of the high and low molecular weight distribution of epoxy resin , vinyl ester resin, so that the overall performance is improved. This paper summarizes the development of domestic and foreign vinyl ester resin overview , structural features and major performance are discussed in detail vinyl ester resin toughened , low content of volatile organic compounds , blends technology and its progress . The paper systematically studied the synthesis of bimodal molecular weight distribution vinyl ester resin main factors , such as raw material ratio, reaction temperature, reaction time , endpoint control , catalyst and inhibitor type and amount of use by means of infrared spectroscopy to characterize ring-opening esterification under varying degrees of vinyl ester resin structure discussed resin component ratio , initiator , accelerator, curing system on the solidified casting body properties, mechanical properties, thermal properties , studied the resin castings at various concentrations , temperatures on the common acids, alkalis , salts, strong oxidizing agents , organic matter and other media corrosion resistance. Ultimately determine the performance optimization of vinyl ester resin (MFE-11) synthesis conditions , successfully conducted a pilot scale trials , and in the Huachang Polymers achieve the industrial production . Compared with the general vinyl ester resin , vinyl ester resin bimodal molecular weight distribution of the exothermic peak is low, the styrene content is reduced nearly 5% , impact strength increased by 10%. Application tests showed bimodal molecular weight distribution can be used as corrosion resistant vinyl ester resin fiberglass , resin cements , resin mortar component materials and other products , has been successfully applied to the chemical industry, metallurgy , construction, electricity, electronics, manufacturing and other industries corrosion areas, with good prospects for development .
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