Natural rubber/graphene oxide nanocomposites via melt and latex compounding: Comparison at very low graphene oxide content

被引:22
作者
Berki, Peter [1 ]
Laszlo, Krisztina [2 ]
Ngo Trinh Tung [3 ]
Karger-Kocsis, Jozsef [1 ]
机构
[1] Budapest Univ Technol & Econ, Dept Polymer Engn, Fac Mech Engn, Muegyetem Rkp 3, H-1111 Budapest, Hungary
[2] Budapest Univ Technol & Econ, Fac Chem Technol & Biotechnol, Dept Phys Chem & Mat Sci, Surface Chem Grp, Budapest, Hungary
[3] Vietnam Acad Sci & Technol, Inst Chem, Dept Funct Polymers & Nanomat, Hanoi, Vietnam
基金
匈牙利科学研究基金会;
关键词
Natural rubber; graphene oxide; latex compounding; melt compounding; curing; fracture behavior; nanocomposite; RUBBER COMPOSITES; CARBON-BLACK; ORGANOCLAY; GRAPHITE; FRACTURE; SILICA;
D O I
10.1177/0731684417690929
中图分类号
TB33 [复合材料];
学科分类号
摘要
Graphene oxide was produced by the improved Hummers method and characterized by X-ray photoelectron spectroscopy. Graphene oxide was incorporated up to 0.5 part per hundred rubber (phr) in natural rubber through traditional melt mixing and latex precompounding, respectively. Cure behavior of the sulfur-curable natural rubber/graphene oxide nanocomposites was studied in a Monsanto-type vulcameter. Properties of the nanocomposites were determined in dynamic mechanical analysis, static tensile (tensile and tear), and fracture mechanical (J-integral) tests. Unlike for latex precompounding, incorporation of graphene oxide accelerated the vulcanization and reduced its extent for the melt compounded series. Natural rubber/graphene oxide nanocomposites, produced by the latex route, outperformed the melt compounded versions with respect to the hardness, tensile mechanical and fracture mechanical performances. The properties of the former natural rubber/graphene oxide nanocomposites scattered less than those produced using block natural rubber via traditional compounding. The property improvements were attributed to a better dispersion (higher exfoliation and larger aspect ratio) of the graphene oxide layers after latex precompounding compared to the nanocomposites produced via direct melt mixing of block natural rubber.
引用
收藏
页码:808 / 817
页数:10
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