Effects of shear on epitaxial crystallization of poly(epsilon-caprolactone) on reduced graphene oxide

doi:10.1039/c7ra13442h

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	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
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	8 期号:12 页码:6406-6413
文章类型	期刊论文
摘要	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.
关键词	Oriented Isotactic Polypropylene X-ray-scattering Situ Small-angle Mechanical-properties Semicrystalline Polymers Induced Orientation Graphite Oxide Nanocomposites Composites Morphology
DOI	10.1039/c7ra13442h
收录类别	SCI
语种	英语
WOS记录号	WOS:000425034000027
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/28986
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Wu, F 2.Jiang, LB 3.Miao, WJ 4.Duan, TC 5.An, MF 6.Tian, F 7.Wang, ZB
推荐引用方式 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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