Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Effects of shear on epitaxial crystallization of poly(epsilon-caprolactone) on reduced graphene oxide | |
| Wu, F; Jiang, LB; Miao, WJ; Duan, TC; An, MF; Tian, F; Wang, ZB | |
| 2018 | |
| Source Publication | RSC ADVANCES
 |
| ISSN | 2046-2069 |
| Volume | 8Issue:12Pages:6406-6413 |
| Subtype | 期刊论文 |
| Abstract | Epitaxial crystallization of poly(epsilon-caprolactone) (PCL) on reduced graphene oxide (RGO) was investigated by shearing at different shear rates of 3 s(-1) and 75 s(-1) and different shear temperatures of 65 degrees C, 70 degrees C and 75 degrees C, respectively. Two dimensional wide angle X-ray diffraction (2D WAXD) results show that the crystallinity and the orientation degrees of the (110) plane of PCL/RGO nanocomposites with shear are higher than those without shear, but the imposed shear field has no obvious effect on the crystal structure of the PCL matrix. Two dimensional small angle X-ray scattering (2D SAXS) results suggest that the imposed shear field makes PCL chains epitaxially crystallize on RGO surfaces to form thicker lamellae. Thereby the melt points of PCL/RGO nanocomposites with shear are higher than that without shear from the differential scanning calorimetry (DSC) results. These results indicate that the imposed shear field can enhance the orientation of the PCL matrix, and promote epitaxial crystallization of PCL chains on RGO surfaces. Higher shear temperature is the requirement for PCL chains to epitaxially crystallize well on RGO at low shear rate, although it is not required for the samples at high shear rate. |
| Keyword | Oriented Isotactic Polypropylene X-ray-scattering Situ Small-angle Mechanical-properties Semicrystalline Polymers Induced Orientation Graphite Oxide Nanocomposites Composites Morphology |
| DOI | 10.1039/c7ra13442h |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000425034000027 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/28986 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Affiliation | 1.Wu, F 2.Jiang, LB 3.Miao, WJ 4.Duan, TC 5.An, MF 6.Tian, F 7.Wang, ZB |
| Recommended Citation GB/T 7714 | Wu, F,Jiang, LB,Miao, WJ,et al. Effects of shear on epitaxial crystallization of poly(epsilon-caprolactone) on reduced graphene oxide[J]. RSC ADVANCES,2018,8(12):6406-6413. |
| APA | Wu, F.,Jiang, LB.,Miao, WJ.,Duan, TC.,An, MF.,...&Wang, ZB.(2018).Effects of shear on epitaxial crystallization of poly(epsilon-caprolactone) on reduced graphene oxide.RSC ADVANCES,8(12),6406-6413. |
| MLA | Wu, F,et al."Effects of shear on epitaxial crystallization of poly(epsilon-caprolactone) on reduced graphene oxide".RSC ADVANCES 8.12(2018):6406-6413. |
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