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| Improving the creep resistance and tensile property of UHMWPE sheet by radiation cross-linking and annealing | |
| Wang, HL; Xu, L; Li, R; Hu, JT; Wang, MH; Wu, GZ; Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China. | |
| 2016 | |
| Source Publication | RADIATION PHYSICS AND CHEMISTRY
 |
| ISSN | 0969-806X |
| Volume | 125Issue:-Pages:41—49 |
| Subtype | 期刊文献 |
| Abstract | Ultra-high molecular weight polyethylene (UHMWPE) sheet was cross-linked by gamma irradiation in air with a dose of up to 300 kGy at a dose rate of 5 kGy/h and further treated by post-annealing at 120 degrees C for 4 h in vacuum. Variations in chemical structure, thermostability, crystallinity, creep resistance, and tensile properties were investigated and compared mainly by gel content TGA, DSC, and creep and tensile measurements. Gel content measurements indicated that cross-linking was predominant over chain scission during irradiation and post-annealing. Radiation cross-linking resulted in an obvious improvement in the creep resistance and tensile properties of UHMWPE. Through cross-linking, the operational temperature and yield strength of the irradiated and subsequently annealed UHMWPE sheet were improved by more than 100 degrees C and 14%, respectively, at a dose of 300 kGy. Simultaneously, Young's modulus was increased to 1413 MPa, compared with 398 MPa of pristine UHMWPE. Annealing after irradiation further improved the creep resistance and Young's modulus. Highly cross-linked UHMWPE can even be maintained at 250 degrees C for a long time without any obvious deformation. (C) 2016 Elsevier Ltd. All rights reserved. |
| Keyword | Molecular-weight Polyethylene Oxygen-induced Radicals Total Hip-arthroplasty Mechanical-properties Vitamin-e Tribological Properties Electron-beam Linked Uhmwpe Gamma-rays Wear |
| DOI | 10.1016/j.radphyschem.2016.03.009 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000377324200006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/25750 |
| Collection | 中科院上海应用物理研究所2011-2019年 |
| Corresponding Author | Wu, GZ (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang, HL,Xu, L,Li, R,et al. Improving the creep resistance and tensile property of UHMWPE sheet by radiation cross-linking and annealing[J]. RADIATION PHYSICS AND CHEMISTRY,2016,125(-):41—49. |
| APA | Wang, HL.,Xu, L.,Li, R.,Hu, JT.,Wang, MH.,...&Wu, GZ .(2016).Improving the creep resistance and tensile property of UHMWPE sheet by radiation cross-linking and annealing.RADIATION PHYSICS AND CHEMISTRY,125(-),41—49. |
| MLA | Wang, HL,et al."Improving the creep resistance and tensile property of UHMWPE sheet by radiation cross-linking and annealing".RADIATION PHYSICS AND CHEMISTRY 125.-(2016):41—49. |
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| Improving the creep （2303KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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