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首页> 外文期刊>Journal of Applied Polymer Science >Effect of diluents on the curing behavior of vinyl ester resin
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Effect of diluents on the curing behavior of vinyl ester resin

机译：稀释剂对乙烯基酯树脂固化性能的影响

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摘要

An acidic vinyl ester resin (similar to6 mg KOH per gram of solid) was prepared by reacting a bisphenol-A-based epoxy resin with acrylic acid in the presence of tributyl amine. The acrylated epoxy resin thus obtained was characterized by Fourier transform infrared spectroscopy. Five samples of vinyl ester resin containing styrene and methyl methacrylate (MMA) in the weight ratios 40:0, 30:10, 20:20, 10:30, and 0:40 were prepared at 30degreesC, and their curing behavior was studied by differential scanning calorimetry in the presence of benzoyl peroxide (2 phr). Curing behavior was dependent on the ratio of the two monomers used as reactive diluents. The kinetic parameters were determined by Ozawa's method. The energy of activation and frequency factor varied from 17 to 23 kcal mol(-1) and 8.47 x 10(9) to 5.21 x 10(12) min(-1), respectively and were lowest for the samples containing 30:10 and 10:30 styrene/MMA weight ratios. The curing reactions followed first-order kinetics and obeyed the Arrhenius rate expression. (C) 2003 Wiley Periodicals, Inc. [References: 20]
机译：在三丁胺的存在下，通过使双酚A基环氧树脂与丙烯酸反应，可以制得酸性乙烯基酯树脂（类似于每克固体6 mg KOH）。通过傅立叶变换红外光谱法表征由此获得的丙烯酸酯化环氧树脂。在30℃下制备5个重量比为40：0、30：10、20：20、10：30和0:40的含苯乙烯和甲基丙烯酸甲酯（MMA）的乙烯基酯树脂样品，并通过以下方法研究其固化行为：过氧化苯甲酰（2 phr）存在下的差示扫描量热法。固化行为取决于用作反应性稀释剂的两种单体的比例。动力学参数通过小泽法测定。活化能和频率因子分别从17到23 kcal mol（-1）和8.47 x 10（9）到5.21 x 10（12）min（-1）变化，并且对于包含30:10和苯乙烯/ MMA重量比为10:30。固化反应遵循一级动力学，服从阿伦尼乌斯速率表达。 （C）2003 Wiley Periodicals，Inc. [参考：20]

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