摘要
通过模拟抽油杆在井下作业的腐蚀条件,研究了抽油杆用碳纤维/乙烯基酯树脂复合材料(CF/VE)在65℃3%(质量分数)的NaCl溶液中的电化学腐蚀状态,进行了与抽油杆接头合金的偶合实验,并结合湿热老化行为分析了偶合作用对于复合材料的吸湿性、静态和动态力学性能的影响。结果表明,CF/VE复合材料在极化体系中会在其表面发生阴极吸氧反应和以OH-浓度为主要影响因素的阳极反应。偶合作用对于复合材料的影响主要在于其对复合材料吸湿性的轻微促进,以及由OH-对复合材料界面的破坏作用所导致的复合材料相关性能的下降。
The electrochemical corrosion behavior of carbon fiber/vinyl ester resin composite （CF/ VE）, which was used for sucker rods in the oil field, was studied under the simulated service conditions in the oil field （3 % （mass fraction） NaC1 aqueous solution immersion at 65＂C ）. Galvanic corrosion experiment between the CF/VE composite and the alloy used as joints linking the composite sucker rods and metal suckers was performed. Meanwhile, the effect of galvanic corrosion on the absorption behavior and the static and dynamic mechanical properties of the CF/VE composite was investigated. The results show that in a polarization system, there will be a cathode reaction of oxygen absorption on the surface of the composite and an anode reaction which is mainly depended on the concentration of the hydroxyl （OH^-）. A slight acceleration of the absorption behavior of the CF/VE composite is caused by the galvanic corrosion. In addition, the galvanic corrosion results in more decrease in the interlaminar shear strength （ILSS） and flexural strength of the CF/VE composite because of the occurrence of hydroxyl at the interface of the CF/VE composite.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2006年第5期7-11,共5页
Journal of Materials Engineering
基金
国家863资助项目(2001AA335030
2004AA33G140)
中石化2003年度重点资助项目(P03066)
关键词
碳纤维
乙烯基酯树脂
复合材料
电化学
腐蚀
carbon fiber
vinyl ester resin
composite
electrochemistry
corrosion
