Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 장영욱 | - |
dc.date.accessioned | 2019-04-16T01:37:54Z | - |
dc.date.available | 2019-04-16T01:37:54Z | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY C, v. 119, No. 49, Page. 27467-27477 | en_US |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.5b08856 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/102025 | - |
dc.description.abstract | Elastomers such as polyurethanes usually possess low stiffness, and the addition of traditional fillers typically results in a moderate improvement. Aramid nanofibers (ANFs) represent one of the most promising nanoscale building blocks for high-performance nanocomposites. In this work, waterborne polyurethanes (PUs) have been reinforced with ANFs using two solution processing methods, namely, layer-by-layer (LBL) assembly technique and the vacuum-assisted flocculation (VAF) method. Record-high modulus of 5.275 GPa and ultimate strength of 98.02 MPa are obtained among all the reported PU based nanocomposites. We attribute such achievement to the similar molecular structures of ANFs with PUs which ensures a high affinity made possible by the manifold interfacial interactions. The formation of multiple hydrogen bonds due to the presence of amide groups with appropriate spacing in both components is confirmed by the computer simulation. Compared with the VAF method, it is found that LBL assembly allows a better load transfer, resulting in higher ultimate strength and stiffness. The VAF method shows advantages in improving the ultimate strength at low loadings of ANFs. We believe our work may not only lead to a new practical combination within the field of composite materials but also provide important implications for the future design of nanocomposites based on the innovative nanofillers. | en_US |
dc.description.sponsorship | M.Y. thanks the financial support from the National Natural Science Foundation of China (Grant No. 21303032 and 21571041), HIT Young Talent Program (Grant No. AUGA5710050613) and Fundamental Research Funds for the Central Universities (Grant No. HIT. IBRSEM. A. 201406). Y.H. thanks the financial support from HIT 100-talent program (Grant No. AUGA5710006813) and Fundamental Research Funds for the Central Universities (Grant No. HIT. IBRSEM. A. 201405). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | MATERIALS ASSEMBLY TECHNIQUES | en_US |
dc.subject | CARBON NANOTUBE COMPOSITES | en_US |
dc.subject | THERMOPLASTIC POLYURETHANE | en_US |
dc.subject | POLYMER NANOCOMPOSITES | en_US |
dc.subject | MECHANICAL-PROPERTIES | en_US |
dc.subject | THERMAL-PROPERTIES | en_US |
dc.subject | ARTIFICIAL NACRE | en_US |
dc.subject | BUILDING-BLOCKS | en_US |
dc.subject | DRUG-DELIVERY | en_US |
dc.subject | GAS BARRIER | en_US |
dc.title | Toward Record-High Stiffness in Polyurethane Nanocomposites Using Aramid Nanofibers | en_US |
dc.type | Article | en_US |
dc.relation.no | 49 | - |
dc.relation.volume | 119 | - |
dc.identifier.doi | 10.1021/acs.jpcc.5b08856 | - |
dc.relation.page | 27467-27477 | - |
dc.relation.journal | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.contributor.googleauthor | Kuang, Qingxia | - |
dc.contributor.googleauthor | Zhang, Dan | - |
dc.contributor.googleauthor | Yu, Jae Chul | - |
dc.contributor.googleauthor | Chang, Young-Wook | - |
dc.contributor.googleauthor | Yue, Mingli | - |
dc.contributor.googleauthor | Hou, Ying | - |
dc.contributor.googleauthor | Yang, Ming | - |
dc.relation.code | 2015001101 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | ywchang | - |
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