The Swelling Properties of Nitrile Rubber with Different Acrylonitrile Contents in Cyclohexane Medium Research

Abstract:

By the research of swelling and mechanical properties of nitrile rubber with different acrylonitrile contents in cyclohexane medium, the influences of physical and mechanical properties with diffrent acrylonitrile contents is analyzed. The results indicated that: the quality of all the nitrile-butadiene rubbers with different acrylonitrile contents is increasing with the increase of soaking time. It increases rapidly in the first 24 hours then gently. With the increase of the acrylonitrile content, the increasing proportions of swilling quality is reduceing. But N40 cyclohexane performance is better relatively. After drying the three kinds of rubber in 110 degrees Celsius, all the qualities is lower than the original value. It means that in swelling process, the material in rubber is pulled out and the distance between the rubber molecules decreases. After swilling the three kinds of rubber, their hardness decreases and the decline proportion is reducing by the increase of acrylonitrile content. With different acrylonitrile contents and swilling times the nitrile rubber shows different mechanical properties. After soaking three kinds of rubber their tensile strengthes are on the decline by swilling time and their rates of permanent deformation are on the rise. It shows that as the swelling time extended, the mechanical properties descends and the corresponding indicators after soaked and dried is lower than the quantitative values after soaked. The study has a certain reference of design of ESPCP stator under certain operating conditions.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 1942-1947
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.1942
• Online since: June 2014
• Authors: Hui Ming Wang*, Xiao Ren Lv, Shi Jie Wang
• Keywords: Acrylonitrile Content, Mechanical Property, Nitrile Rubber, Submersible Screw Pump, Swelling Properties

References

[1] Wang Shi-jie, Li Qin compiled. Technology and design for progressing cavity pump system [M]. Beijing: Metallurgy Industry Press, (2006).

[2] Wang Zuo-ling, Zhang Zhuo-ya compiled. Test method for rubber[M]. Beijing: Chemical Industry Press, (2012).

[3] Yang Qing-zhi. Modern technology of rubber[M]. Beijing: China Petrochemical Press, (2007).

[4] Wang Shijie, Li Fubao, Sun Shuhui1 et al. Research on the On- line Monitoring Technology for Progressing Cavity Pumping(PCP) Operation[J]. China Mechanical Engineering. 2005. 15(14): 1276-1279.

[5] Shi Baoguang, Chen Hui, Zhang Lianshe et al. Application of screw pump and its matching technology to heavy oil production[J]. OGRT, 1998, 5(3): 71-74.

[6] Wiltse, D J, and B A Weir. Eliminating Sucker Rod Couplings Can Reduce Progressing Cavity Pump Operating Costs[J]. SPE International Heavy Oil Symposium. 1995, 6 : 19- 21.

DOI: 10.2118/30275-ms

[7] Chen De-chun, Li Zhao-wen and Wu Xiao-dong . Kinematic Model for Rod Strings of Screw Pump in Surface Drived Pumping System[J]. Journal of the Univer sity of Petroleum. 1999, 23( 1) : 42- 44.

[8] Chen Yu-xiang, Wang Xia, Zhou Song et al. Analyses on Improving the Life of the Screw Pump's Stator Rubber[J] . Drainge and Irrigation Machinery, 2005, 23(4): 6- 9.

[9] L I Xiao-qiang, Tang Bin. Characteristics of Soft NBR and its Compounding Technique[J]. Special Purpose Rubber Products, 2004, 25( 2) : 1- 4.

[10] Wang Zuo-ling. Nitrile Rubber and Hydrogenated Nitrile Rubber [J]. World Rubber Industry, 2005, 32( 10) : 17- 22.

DOI: 10.3403/02234327

[11] Schreib er H P, Ddg endeleC, Bat aill eP. Component interactions and properties of cross linked vinyl systems[J]. Polymer Engineering and Science, 1990, 30 (16) : 981 -988.

[12] C Wang, et al. Study on heat-resist ant property of adhesive/carbon- carbon composites joints[J]. International Journal of Adhesion & Adhesives, 2006, 26: 206- 211.

DOI: 10.1016/j.ijadhadh.2005.03.003

[13] Flory, p. j. Principles of Polymer Chemistry[M]. Ithaca, N.Y.: Cornell Univ. Press, (1953).