STUDY ON ALKALI RESISTANCE OF VINYL ESTER RESIN WITH LOW ESTER DENSITY

Abstract

Abstract: Corrosion resistance of five different types of vinyl ester resin and unsaturated polyester resin was tested under the same experimental conditions in order to compare the corrosion resistance of low ester density in alkali with other different type resin. The alkali was sodium hydroxide (NaOH) solution, for which the mass fraction was 25% and temperature is 80 ℃. The test proved that low ester density had excellent alkali resistance at high temperature. The flexural strength retention rate is 75%, the flexural modulus retention rate is 105%, the mass retention rate is 98.6%, effective thickness change rate is less than 0.5%, and barcol hardness retention rate was 108% after soaking 600 days in 25% NaOH solution.

Key words: vinyl ester resin, VE, alkali corrosion resistance, strength retention rate, NaOH solution

CLC Number:

TB332

LIU Shi-qiang, MAO Ling-feng. STUDY ON ALKALI RESISTANCE OF VINYL ESTER RESIN WITH LOW ESTER DENSITY[J]. Fiber Reinforced Plastics/Composites, 2018, 0(8): 61-65.

References

[1] Chuan Wang, Li Li Sui, Jin Ping Ou. Experimental study on the corrosion resistance of GFRPP rebar in alkali, acid and salt solutions[J]. Advanced Materials Research, 2011, 1030(146).
[2] 戴华, 周润培. 耐碱环氧乙烯基酯树脂的分子设计[J]. 玻璃钢/复合材料, 2014(2): 59-61.
[3] 周润培, 周达飞. 不饱和聚酯树脂耐水和酸碱腐蚀性能的研究[J]. 腐蚀与防护, 1982(3): 2-6.
[4] 黄学成, 耿悦彬, 方群英, 等. 海外乙烯基酯树脂在FRP行业中的应用[J]. 玻璃钢, 1999(1): 15-18.
[5] 郝志勇, 李玲, 吴福虎, 等. 耐腐蚀性乙烯基酯树脂的研究与应用[J]. 中国胶粘剂, 2007(6): 39-42.
[6] 李明, 李品钰, 赵军, 等. 玻璃纤维增强筋的高温耐碱性能试验[J]. 中外公路, 2016, 36(1): 285-288.
[7] S. P. Sonawala, R. J. Spontak. Degradation kinetics of glass-reinforced polyesters in chemical environments[J]. Journal of Materials Science, 1996, 31(18): 4745-4756.
[8] 易树平. 双酚A型乙烯基酯树脂与通用型不饱和聚酯树脂耐蚀性能测试及分析[J]. 沪天化科技, 2004(3): 254-256.
[9] 周润培, 侯锐钢, 王晓东, 等. MFE乙烯基酯树脂及其在防腐蚀领域的应用研究(Ⅰ)[J]. 玻璃钢/复合材料, 2002(4): 35-37, 42.
[10] 李宗玲. 提高玻璃钢耐碱性能研究[J]. 玻璃钢, 1996(4): 8-9.
[11] 陈锋, 陈继荣. DERAKANE 411环氧乙烯基酯树脂耐碱性探讨[J]. 全面腐蚀控制, 2009, 23(11): 26-28.
[12] 朱志峰, 侯锐钢. 热老化对阻燃型环氧乙烯基酯树脂性能的影响[J]. 热固性树脂,2016, 31(2): 48-51.
[13] 王天堂, 陆士平. 环氧乙烯基酯树脂及层合板的耐碱性能[J]. 氯碱工业, 2004(4): 37-39.
[14] 黄力刚, 杨志忠, 阎宏, 等. 复合材料耐碱性能的研究[J]. 纤维复合材料, 2008, 25(1): 45-48.
[15] A Kootsookos, P. J Burchill. The effect of the degree of cure on the corrosion resistance of vinyl ester/glass fibre composites[J]. Composites Part A, 2003, 35(4): 501-508.