JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Effects of Seawater & Freshwater Soaking on the Cure Properties of Accelerated Thermally Aged CSPE
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Effects of Seawater & Freshwater Soaking on the Cure Properties of Accelerated Thermally Aged CSPE
Shin, Yong-Deok; Lee, Jeong-U;
  PDF(new window)
 Abstract
The accelerated thermal aging of CSPE (chlorosulfonated polyethylene) was carried out for 33.64 and 67.27 days at 110[], equivalent to 40 and 80 years of aging at 50[], respectively. These samples were referred to as CSPE-0y, CSPE-40y and CSPE-80y, respectively. As the accelerated thermally aged years of the CSPE increase, the insulation resistance[] at 20[Hz], 500[Hz], and 2[KHz], and the percent elongation [%EL] of the CSPE decrease. However, the dissipation factor() at 20[Hz], 500[Hz], and 2[KHz], the apparent density[], the glass transition temperature and the melting temperature of the CSPE were increased. The period of time that the voltage has to be applied until electric breakdown of the CSPE-0y is longer than that of the CSPE-40y, and the CSPE-80y, but the dielectric strength of the CSPE-80y is lower than that of the CSPE-0y and the CSPE-40y. The differential temperatures after the AC and DC voltages are applied to CSPE-0y, CSPE-40y and CSPE-80y are 0.026~0.028[], 0.030~0.042[], 0.018~0.045[], respectively. The variations of temperature for the AC voltage are higher than those for the DC voltage when an AC voltage is applied to CSPE-0y, CSPE-40y and CSPE-80y. It is found that the dielectric loss owing to the dissipation factor[] is related to the electric dipole conduction current. It is ascertained that the ionic (electron or hole) leakage current is increased by the separation of the branch chain of CSPE polymer from the main chain of the polyethylene as a result of thermal stress due to accelerated thermal aging as well as by conducting ions such as , , , , and after seawater soaking.
 Keywords
CSPE;Seawater & freshwater soaking;Insulation resistance;Dissipation factor;Dielectric strength;Percent elongation;Variation in temperature;Glass transition temperature;Melting temperature;
 Language
Korean
 Cited by
 References
1.
Varapon Tanrattanakul and Anida Petchkaew, "Mechanical Properties and Blend Compatibility of Natural Rubber-Chlorosulfonated Polyethylene Blends", Journal of Applied Polymer Science, Vol.99, pp. 127-140, 2006. crossref(new window)

2.
US NRC NUREG/CR-7000, "Essential Elements of an Electric Cable Condition Monitoring Program", Brookhaven National Laboratory, Upton, NY, 2010.

3.
Jeong-U Lee, In-Yong Kim, Seong-Hyun Ji, Hwang-Hyun Jeon and Yong-Deok Shin " Variation in Properties of Seawater Flooded Non-Flooded CSPE" The Transaction of the Korean Institute of Electrical Engineers, Vol. 64, No. 12, PP. 1724-1729, 2015. crossref(new window)

4.
Zheng Gu, Guojun Song, Weisheng Liu, Jianming Gan, Wei Dou and Ping Lu "Preparation and Properties of Chlorosulfonated Polyethylene / Organomontmorillonite Nanocomposite" Journal of Applied Polymer Science, Vol.115, pp. 3365-3368, 2010. crossref(new window)

5.
A. ROYCHOUDHURY and P. P. DE " Studies on Chemical Interactions Between Chlorosulphonated Polyethylene and Carboxylated Nitrile Rubber", Journal of Applied Polymer Science, Vol.63, pp. 1761-1768, 1997. crossref(new window)

6.
Myueong-Kyun Kang, Jung-Hoon Lee, Seung-Hoon Lee, Jun-Soo Jeon, Young Park, Ki-Yub Park, Kyu-Won Jeong and Yong-Deok Shin. "Effects of Freshwater Flooding on Properties of CSPE with Number of Dried-Days", J. KIEEME, Vol.26, No.8, pp.597-601, 2013.

7.
Yong-Deok Shin and Jeong-U Lee " A Study on Physical, Chemical and Electrical Thermal Ageing of Seawater Soaked CSPE" KIEE Society of Electrophysics & Applications Autumn Annual Conference, PP. 116-117, 2015.

8.
http://www.lambient.com. "AN11-LT-451 and LCR Meter Comparison and LT-4203 Parallel Plate Test Fixture", Version 1.0, Lambient Technologies L.L.C., 2014.

9.
Jong-IL Kim, Myeung-Ye Lee "High Voltage Electric Discharge Olasma & Application", 1st Edition, P.251-276. KyoBobook. 2012.

10.
Adrianus J. Dekker "Electrical Engineering Materials", 3rd Edition, P.62-78. Prentice-Hall, Inc., Englewood Cliffs.. 1973.

11.
http://kor.mt.com/kr/ko/home/products/Laboratory_Analytics_Browse/TA_Family_Browse.html

12.
William D. Callister, JR. "Materials Science and Engineering -An Introduction", Fifth Edition, P.473-519. John Wiley & Sons, Inc.. 2000.

13.
http://www.heonjin.com " $TXA^{TM}$ Texture Analyzer"

14.
Jun-Soo Jeon, Seung-Hoon Lee, Jeong-U Lee, In-Yong Kim, Seong-Hyun Ji, Hwang-Hyun Jeon and Yong-Deok Shin. "Effects of Seawater Flooding on Electrical and Physical Properties of EPR for Cable in NPPs", Proceeding of the KIEEME Annual Autumn Conference 2014, pp.153. 2014.

15.
http://www.aslltd.c.uk "CTH7000, hand-hand thermometer, WIKA, UK

16.
Yongdeok Shin, Junsoo Jeon, Seunghoon Lee, Jeongu Lee, Inyong Kim and Heeseung Lee "Effects of Seawater and Freshwater Flooding of the Accelerated Thermally Aged CSPE according to Drying Day", pp.108-110, KIEE Spring Conference 2014.

17.
Yong-Deok Shin and Jeong-U Lee "Effects of Seawater and Freshwater Flooding on Conduction Current of CSPE" KIEE Society of Electrophysics & Applications Autumn Annual Conference, PP. 118-119, 2015.