| Preparation, tensile, damping and thermal properties of polyurethanes based on various structural polymer polyols: effects of composition and isocyanate index | |
| Department | 先进润滑与防护材料研究发展中心 |
Chen SB(陈守兵) ; Wang QH(王齐华); Wang TM(王廷梅); Wang QH(王齐华)
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| The second department | 固体润滑国家重点实验室 |
| 2012 | |
| Source Publication | Journal of Polymer Research
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| ISSN | 1022-9760 |
| Volume | 19Issue:11Pages:9994(1-7) |
| Abstract | A series of polyurethanes (PUs) based on poly (tetramethylene glycol) (PTMG), poly (ethylene adipate) (PEA) diol, polycaprolactone (PCL) diol and castor oil (CO) were synthesized. The tensile, damping and thermal properties were studied systematically in terms of the composition and isocyanate index (R). Results showed that when R is 2, the PUs exhibit a relatively high tensile strength more than 30 MPa. The PTMG-PU, PCL-PU and PEA-PU show high elongation at break compared to the cross-linked CO-PU. When R is 1.5, tensile strengths decrease compared to R is 2. But, the elongations of PTMG-PU, PCL-PU and CO-PU increase. DMA analysis showed that the glass transition temperature (T g ) is increasing as the sequence of PTMG-PU, PCL-PU, PEA-PU and CO-PU. The T g of CO-PU is as high as 60.6 °C when R is 1.5 and 93.4 °C when R is 2. The T g ranges of the other linear PUs are between −50 and −12 °C. The damping temperature ranges of these PUs are relatively broad. Further, TG results showed the start degradation temperatures of them are approx 260 °C. These results show a good guidance to select a kind of PU when prepare the PU-polymer composites for given properties. |
| Keyword | Polyurethanes Polyols Tensile Properties Damping Properties |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s10965-012-9994-2 |
| Funding Organization | the National Science Foundation for Distinguished Young Scholars of China (GrantNo. 51025517);the Innovative Group Foundation of NSFC (Grant No.50721062);the 973 Project of China (2007CB607606);the National Defense Basic Scientific Research Project (A1320110011) |
| Indexed By | SCI |
| If | 2.019 |
| Language | 英语 |
| Funding Project | 聚合物自润滑复合材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3386 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Wang QH(王齐华) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Chen SB,Wang QH,Wang TM,et al. Preparation, tensile, damping and thermal properties of polyurethanes based on various structural polymer polyols: effects of composition and isocyanate index[J]. Journal of Polymer Research,2012,19(11):9994(1-7). |
| APA | Chen SB,Wang QH,Wang TM,&王齐华.(2012).Preparation, tensile, damping and thermal properties of polyurethanes based on various structural polymer polyols: effects of composition and isocyanate index.Journal of Polymer Research,19(11),9994(1-7). |
| MLA | Chen SB,et al."Preparation, tensile, damping and thermal properties of polyurethanes based on various structural polymer polyols: effects of composition and isocyanate index".Journal of Polymer Research 19.11(2012):9994(1-7). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 9994.PDF（374KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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