Preparation and characterization of graphene oxide/PMMA nanocomposites with amino-terminated vinyl polydimethylsiloxane phase interfaces
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Hongyan Li
Abstract
Graphene oxide (GO) was prepared by the Hummers method and was grafted by an amino-terminated vinyl polydimethylsiloxane (AP). The AP-modified GO (GO-AP) was incorporated in poly(methylmethacrylate) (PMMA) to prepare nanocomposites. Raman microscopy, Fourier transformed infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and thermogravimetric analysis were used to characterize the particles. The mechanical properties, thermal stability, thermal conductivity, and dispersing status of the PMMA-based nanocomposites were also investigated. The results indicated that AP was grafted on the surface of GO via the amidation reaction, and the quantity of the grafted AP was approximately 20 wt% that of GO-AP. With the addition of GO-AP, the three-point bending strength of GO-AP/PMMA increased to approximately 58 MPa, and the dispersion of the particles was also enhanced. GO wrapped by AP could not form thermal conducting networks at the percolation thresholds. The increasing amount of AP prevented the formation of thermal conduction network and decreased the thermal conductivity of the composites. The thermal stability of the composites was affected by three main reasons, and the total effect of the three reasons on thermal stability illustrated a negative trend.
Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (Grants 51503141 and 51472175) and the Natural Science Foundation of Tianjin City (Grant 15JCTPJC63400).
References
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©2016 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Original articles
- Preparation and characterization of graphene oxide/PMMA nanocomposites with amino-terminated vinyl polydimethylsiloxane phase interfaces
- Effect of exfoliated graphite nanoplatelets on thermal and heat deflection properties of kenaf polypropylene hybrid nanocomposites
- Synthesis of spherical porous cross-linked glutaraldehyde/poly(vinyl alcohol) hydrogels
- Influence of process parameters on property of PP/EPDM blends prepared by a novel vane extruder
- Influence of processing conditions on heat sealing behavior and resultant heat seal strength for peelable heat sealing of multilayered polyethylene films
- Thermal degradation kinetics and lifetime of HDPE/PLLA/pro-oxidant blends
- Effect of notch sensitivity on the mechanical properties of HA/PEEK functional gradient biocomposites
- The influence of melt mixing on the stability of cellulose acetate and its carbon nanotube composites
- Experimental analysis of resin infusion in air cushion method
- 3D-MID manufacturing via laser direct structuring with nanosecond laser pulses
Articles in the same Issue
- Frontmatter
- Original articles
- Preparation and characterization of graphene oxide/PMMA nanocomposites with amino-terminated vinyl polydimethylsiloxane phase interfaces
- Effect of exfoliated graphite nanoplatelets on thermal and heat deflection properties of kenaf polypropylene hybrid nanocomposites
- Synthesis of spherical porous cross-linked glutaraldehyde/poly(vinyl alcohol) hydrogels
- Influence of process parameters on property of PP/EPDM blends prepared by a novel vane extruder
- Influence of processing conditions on heat sealing behavior and resultant heat seal strength for peelable heat sealing of multilayered polyethylene films
- Thermal degradation kinetics and lifetime of HDPE/PLLA/pro-oxidant blends
- Effect of notch sensitivity on the mechanical properties of HA/PEEK functional gradient biocomposites
- The influence of melt mixing on the stability of cellulose acetate and its carbon nanotube composites
- Experimental analysis of resin infusion in air cushion method
- 3D-MID manufacturing via laser direct structuring with nanosecond laser pulses
