Load transfer and mechanical properties of chemically reduced graphene reinforcements in polymer composites

被引：40
|
作者：
Xu, Peng [1 ]
Loomis, James [1 ]
Bradshaw, Roger D. [1 ]
Panchapakesan, Balaji [1 ]
机构：
[1] Univ Louisville, Dept Mech Engn, Small Syst Lab, Louisville, KY 40292 USA
来源：
NANOTECHNOLOGY | 2012年 / 23卷 / 50期
基金：
美国国家科学基金会;
关键词：
POLYPROPYLENE NANOCOMPOSITES; EXFOLIATED GRAPHENE; PHYSICAL-PROPERTIES; RAMAN-SPECTROSCOPY; ELASTIC PROPERTIES; GRAPHITE; DISORDER; STRENGTH;
D O I：
10.1088/0957-4484/23/50/505713
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report load transfer and mechanical properties of chemically derived single layer graphene (SLG) as reinforcements in poly (dimethyl) siloxane (PDMS) composites. Shear mixing reduced graphene sheets in polymers resulted in a marked decrease of the 2D band intensity due to doping and functionalization. Raman G mode shifts of 11.2 cm(-1)/% strain in compression and 4.2 cm(-1)/% strain in tension are reported. Increases in elastic modulus of PDMS by similar to 42%, toughness by similar to 39%, damping capability by similar to 673%, and strain energy density of similar to 43% by the addition of 1 wt% SLG in PDMS are reported.
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页数：7
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