| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
생체재료_포스터 |
| 제목 |
Reducing Friction coefficient of the cross-linked polyethylene by immobilizing poly [2-(Methacryloyloxy)ethyl] dimethyl-(3-sulfopropyl)ammonium hydroxide on the surface |
| 초록 |
In order to decrease friction coefficient of the cross-linked polyethylene (CLPE) which is used for artificial hip joint, poly [2-(Methacryloyloxy)ethyl] dimethyl-(3-sulfopropyl)ammonium hydroxide (PMEDSAH), which is extremely hydrophilic zwitterionic polymer , was grafted on the CLPE via surface-initiated free radical polymerization process using UV or thermal energy. TEM images and XPS spectra showed that PMEDSAH layers were successfully grafted on the CLPE surface. The grafting thickness was increased as each of the experimental conditions increased. Contact angle data showed that the PMEDSAH layers successfully imparted hydrophilicity onto the CLPE surface. The tribo-test and the 3-D confocal microscopy confirmed that the significant decrease of the friction coefficient and wear volume. Throughout these results, we could confirm that the surface immobilization of zwitterionic PMEDSAH could effectively decrease the friction coefficient of the CLPE-surface. |
| 저자 |
Chung-Man Lim1, Jiae Seo2, Joon Hur2, Yoon Ki Joung3, Ji-Hun Seo2
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| 소속 |
1Korea Institute of Science and Technology, 2Korea Univ., 3Korea Institute of Science and Technology / Univ. of Science and Technology |
| 키워드 |
cross-linked PE; artificial hip joint; zwitterion; surface grafting; friction coefficient
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| E-Mail |
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