Basic analytical investigation of plasma-chemically modified carbon fibers

Bubert, H.; Ai, Xingtao; Haiber, Stephan; Heintze, M.; Brüser, Volker; Pasch, E.; Brandl, W.; Mărginean, Gabriela

doi:10.1016/s0584-8547(02)00101-5

Cited by 89 publications

(50 citation statements)

References 12 publications

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“…56 Figure 6 displays an XPS sputter depth profile of a CNF showing most of the oxygen is in the outer 2 nm of the sample. Additionally, from the tabulated results, they concluded that the highest oxygen concentration ͑NF-6͒ is achieved at low gas pressures ͑1.5 mbars͒.…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Surface characterization and functionalization of carbon nanofibers

Klein¹,

Melechko²,

McKnight³

et al. 2008

Journal of Applied Physics

161

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Carbon nanofibers are high-aspect ratio graphitic materials that have been investigated for numerous applications due to their unique physical properties such as high strength, low density, metallic conductivity, tunable morphology, chemical and environmental stabilities, as well as compatibility with organochemical modification. Surface studies are extremely important for nanomaterials because not only is the surface structurally and chemically quite different from the bulk, but its properties tend to dominate at the nanoscale due to the drastically increased surface-to-volume ratio. This review surveys recent developments in surface analysis techniques used to characterize the surface structure and chemistry of carbon nanofibers and related carbon materials. These techniques include scanning probe microscopy, infrared and electron spectroscopies, electron microscopy, ion spectrometry, temperature-programed desorption, and atom probe analysis. In addition, this article evaluates the methods used to modify the surface of carbon nanofibers in order to enhance their functionality to perform across an exceedingly diverse application space.

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Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Surface characterization and functionalization of carbon nanofibers

Klein¹,

Melechko²,

McKnight³

et al. 2008

Journal of Applied Physics

161

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“…In the results herein, the amount of silicon decreased following APPT, which suggested that the mold release agent was gradually removed by the APPT. The increasing nitrogen amount was owing to the fact that nitrogen compounds present in the air entered the surface of resin when plasma treatment was applied [27]. Further, the amount of oxygen increased and the amount of carbon decreased significantly after plasma treatment.…”

Section: Chemical Properties Of Plasma-treated Smc Substratesmentioning

confidence: 99%

Effect of Atmospheric Pressure Plasma Treatment on the Lap-Shear Strength of Adhesive-Bonded Sheet Molding Compound Joints

et al. 2018

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Atmospheric pressure plasma treatment (APPT) technology was used herein to treat sheet molding compound (SMC) substrates to increase the lap-shear strength of adhesive-bonded SMC joints. Further, the mechanisms behind the lap-shear strength improvements in APPT-treated adhesive-bonded SMC joints were explored. A maximum lap-shear strength about three times that of the as-received SMC joints was achieved when the APPT distance was set to 20 mm. The surface roughness, which exhibited little benefit to the lap-shear strength, was determined to not be the primary reason for the increase in lap-shear strength. Specifically, X-ray photoelectron spectra revealed that an increased amount of O-containing groups (i.e., C-O-H, C-O-C, H-O-C=O or R-O-C=O) following APPT contributed to the improved lap-shear strength. In addition, the surface free energy increased significantly after APPT, which improved the lap-shear strength of the adhesive-bonded SMC joints. Compared to the change of surface morphology, the changes in both the surface chemical property and surface free energy played larger roles in increasing the lap-shear strength of APPT-treated SMC joints.

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“…In the carbon fiber reinforce epoxy resin composites, carbon fibers are usually modified by the surface treatment to improve its surface wettability or to increase the roughness of its surface, in order to achieve a good adhesion on the interface between the reinforcement and the matrix. Up to now, many efforts have been devoted to modify carbon fibers for improving the interfacial properties between the carbon fibers and the matrix, such as plasma treatment, [11][12][13] radiation treatment, [14,15] chemical modifications. [16][17][18] In contrast, little work has been done to modify the surface of quartz fibers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Modification on Mechanical Properties of Quartz Fiber Reinforced Boron Doped Silicone Resin Composites

Yu¹,

Pei²,

Chen³

2018

Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)

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Abstract. 3-triethoxysilylpropylamine (KH550) polymer was coated on quartz fibers by a simple dipping process without any complex chemical treatments in order to increase the bonding strength between quartz fibers and boron doped silicone resin matrix. The effect of coating on the interface of quartz fiber reinforced composites was evaluated by scanning electron microscope (SEM), FTIR, DTA-TG and flexural strength of unidirectional composites. Results indicated that the coating played an important role in improving the interfacial adhesion and thermal stability of quartz fibers composites. The FTIR result showed that Si-O-B bonds in silicone resin chain decomposed when the heat treatment temperature increased to 500. The composites with KH550 coatings exhibited better ℃ room temperature and high temperature flexural strength than those of the composites without KH550 coatings.

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Basic analytical investigation of plasma-chemically modified carbon fibers

Cited by 89 publications

References 12 publications

Surface characterization and functionalization of carbon nanofibers

Surface characterization and functionalization of carbon nanofibers

Effect of Atmospheric Pressure Plasma Treatment on the Lap-Shear Strength of Adhesive-Bonded Sheet Molding Compound Joints

Effect of Surface Modification on Mechanical Properties of Quartz Fiber Reinforced Boron Doped Silicone Resin Composites

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