Supporting Information

Fabrication of Functionalized Graphene Filled Carboxylated Nitrile Rubber Nanocomposites as Flexible Dielectric Material

Rakesh Manna and Suneel Kumar Srivastava*

Indian Institute of Technology, Kharagpur-721302, India

Corresponding Author

*E-mail:  sunil111954@yahoo.co.uk Tel: +91 03222-283334

Supporting Information 1

Stress strain curve of neat XNBR and its GNS-HDA composites

Figure S1: Stress- strain curve of XNBR and various nanocomposites

Supporting Information 2

Table S1. Comparision of Young’s modulus of XNBR/GNS-HDA nanocomposites with reported XNBR and other polymer graphene nanocomposites

Composite	Filler content   Young’s modulus	Reference	

XNBR		2.5 MPa	M. Tian, J. Zhang, L. Zhang, S. Liu, X.	
			Zan, T. Nishi, N. Ning, J. Colloid	
TRG/XNBR	0.75 (vol%)	6.25	Interface Sci. 2014, 430, 249.	
				
XNBR		1.5	D. Wang, T. Zhou, J. Zha, J. Zhao, C. Shi,	
			Z. Dang, J. Mater. Chem. A, 2014, 2,	
RGO/XNBR	0.75 (vol%)	4.7	11144.	
				
PS		1.5	M. Fang, K. Wang, H. Lu, Y. Yang, S.	
			Nutt, J. Mater. Chem., 2009, 19, 7098.	
Graphene/PS	0.9 (wt%)	2.25 GPa		

Epoxy		2.69 GPa		I. Zaman, H. Kuan, Q. Meng, A.	
				Michelmore, N. Kawashima, T. Pitt, L.	
Epoxy/Graphene	0.489 (vol%)	3.412		Zhang, S. Gouda, L. Luong, J. Ma, Adv.	
				Funct. Mater., 2012, 22, 2735.
	
XNBR		1.55		   Our Results
	
XNBR/GNS-HDA	2 phr	1.35