폴리에틸렌 파이프의 융착 특성에 미치는 표면 산화의 영향

이종화; 김형일; Jong-Hwa Lee; Hyung-Il Kim

Polymer(Korea), Vol.41, No.1, 139-142, January, 2017

DOI10.7317/pk.2017.41.1.139 Export Citation

폴리에틸렌 파이프의 융착 특성에 미치는 표면 산화의 영향

Effect of Surface Oxidation on Welding Properties of Polyethylene Pipe

이종화, 김형일^†

충남대학교 공과대학 공업화학과

Jong-Hwa Lee, and Hyung-Il Kim^†

Department of Industrial Chemistry, College of Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejon 34134, Korea

E-mail:

초록

가스 수송용 폴리에틸렌 파이프의 표면 산화가 견고한 융착 형성에 미치는 영향을 조사하였다. 폴리에틸렌파이프의 적재 보관 및 융착 과정에서 적용되는 열화 산화 및 자외선 산화에 의해 카보닐기와 같은 산화 관능기가 형성되었다. 표면 산화가 증가할수록 폴리에틸렌 파이프 융착 계면에서의 사슬엉킴이 불량하여 맞대기 융착부의 접합 강도는 크게 감소하였다. 폴리에틸렌 파이프의 산화도가 증가할수록 융착부 파단면에서의 변형이 현저히 감소하여 접합 강도가 낮게 나타났다.

The effect of surface oxidation of polyethylene on the secure fusion of pipe was investigated. Oxidative functional group such as carbonyl group was formed on polyethylene pipe by both thermal and ultraviolet oxidation conditions which were usually applied during storage and fusion process. The bonding strength of fusion part of polyethylene pipe decreased significantly due to the poor chain entanglement at the fusion interface as the degree of surface oxidation increased. The deformation on debonded fracture surface of fusion part was reduced significantly as the degree of surface oxidation increased.

Keywords:polyethylene pipe;butt fusion;oxidation;bonding strength;interface

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[1] Donald LK, Roberd LL, Natural Gas Engineering Production and Storage, Mcgraw-Hill, New York, 1990.

[2] Striplin TH, Ultrasonic Evaluation of Polyethylene Butt Fused Joint, McElroy Manufacturing Inc., New York, 1990.

[3] Rovre DS, Gueugnaut D, Robert D, J. Appl. Polym. Sci., 38, 147 (1989)

[4] Kil SH, Kwon JR, Jo JH, J. Energ. Eng., 14, 153 (2005)

[5] Krempl E, Miu TM, J. Compos. Mater., 16, 172 (1982)

[6] Jun HW, Kim YS, Tae SH, J. KIIS, 17, 16 (2002)

[7] Bowman J, Polym. Eng. Sci., 37(4), 674 (1997)

[8] Caravaca DS, Bird C, Kleiner D, Insight, 49, 83 (2007)

[9] Leskovics K, Kollar M, Barczy P, Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process., 419, 138 (2006)

[10] Chen H, Scavuzzo RJ, Srivatsan TS, J. Mater. Eng. Perform., 6, 473 (1997)

[11] Huo L, Qi LF, Zhang Y, Jing H, Yang X, J. Mater. Sci. Technol., 19, 603 (2003)

[12] Bucknall CB, Dumpleton P, Polym. Eng. Sci., 27, 110 (1987)

[13] Khelif R, Chateauneuf A, Chaoui K, Meccanica, 43, 567 (2008)

[14] Kim JS, Lee YJ, Oh YJ, Trans. Korean Soc. Mech. Eng. A, 39, 11 (2015)

[15] Bousmina M, Qiu H, Grmela M, Klemberg-Sapieha JE, Macromolecules, 31(23), 8273 (1998)

[16] Braga MR, Rink M, Pavan A, Polymer, 32, 3152 (1991)