Interfacial shear strength studies of experimental carbon fibres, novel thermosetting polyurethane and epoxy matrices and bespoke sizing agents

Gnädinger, Florian; Middendorf, Peter; Fox, Bronwyn

doi:10.1016/j.compscitech.2016.07.029

Cited by 62 publications

(32 citation statements)

References 15 publications

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“…Carbon fibers (CFs), combining high specific strength and modulus, damping capacity, excellent thermal stability and conductivity, and potentially lubricating ability, have been widely used as reinforcements and/or lubrications in tribological applications of polymer composites . Generally, they can improve the wear resistance of composites because of the increase of loading capability, while it is unclear under what conditions CFs can induce low friction coefficient .…”

Section: Introductionmentioning

confidence: 99%

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Chunzheng

2018

Surface & Interface Analysis

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The poor interfacial adhesion between carbon fibers (CFs) and polyimide (PI) resin has seriously hampered the application of CF/PI composites. In this work, the interfacial adhesion was efficiently enhanced by grafting on the CF surface. Surface morphology and surface composition of modified carbon fibers were characterized, which indicated that acrylamide was grafted successfully on the CF surface and the surface roughness was increased slightly. After grafting, the interface shear strength of modified carbon fibers/PI composites was significantly improved by 86.96%, and the interlaminar shear strength was enhanced by 55.61% due to the covalent bonds in interphase and the toughening effect of sizing agent. Moreover, the mechanical properties of composites with different interfacial adhesion were measured, which further confirmed the effect of the grafting modification.

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Section: Introductionmentioning

confidence: 99%

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Chunzheng

2018

Surface & Interface Analysis

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“…For the particular case of thermosetting systems, which is the focus of this research work, the main drawback has been associated to the long cure cycles of epoxy systems, which demands cure cycles within the range of 30–150 min. Even though recent developments have led to the reduction of such cure cycles , polyurethane systems represent a promising option, mainly because of their longstanding fast cure cycles, substantial lower price and their high intrinsic toughness, fatigue, and damage tolerance . One of the main drawbacks of thermosetting polyurethanes compared to state of the art epoxy systems is related to its reduced mechanical and thermo‐mechanical properties .…”

Section: Introductionmentioning

confidence: 99%

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Chiacchiarelli

Petrucci

Torre

2017

Polymer Engineering & Sci

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Carbon fiber reinforced poly(urethane‐isocyanurate)‐nanosilica composites CF‐(PUI‐NS) were manufactured by means of the vacuum‐assisted resin transfer moulding technique (VARTM) at very low NS concentrations (0–4 wt%). The high strain to failure of the PUI matrix (>7%) affected tensile tests by CF reorientation. Both the tensile strength and strain to failure were highly dependent on its kinematics. CF(PUI‐NS) caused an increase of the static toughness with a maximum improvement of tensile strain to failure and modulus of +28.8% and +39% at 1 wt% and 2 wt% of NS, respectively. The interlaminar shear strength (GIC) of the composites showed both a deterioration of −12.9% and an improvement of +9.9% for NS concentrations of 1 wt% and 4 wt%, respectively. Regardless of the GIC value, all of the composites prepared with NS presented secondary maxima of the force versus displacement plots, indicating a substantial arrest of the crack propagation velocity after delamination started. Fractographic analysis revealed several features, such as fiber pull‐out, bridging as well as river patterns whereas the composites prepared with NS behaved in a more ductile fashion due to the presence of river patterns and a reduced fiber pull‐out. POLYM. ENG. SCI., 58:1241–1250, 2018. © 2017 Society of Plastics Engineers

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“…Furthermore, the risk of local overheating due to cross-linking can be reduced by 50 % to comparable epoxy systems, due to lower exothermic reaction. This makes PU suitable for the production of thick laminates (> 5 mm) and has advantages such as high intrinsic toughness, fatigue and damage tolerance [16,17].…”

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confidence: 99%

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

Huelsbusch¹,

Jamrozy²,

Frieling³

et al. 2017

Materials Testing

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123 Production-and microstructure-based fatigue assessment of metallic AISI 304/430 multilayer materials produced by hot pack rolling B. Mitevski, S. Weiß and A. Fischer 130 In-situ tensile testing of notched poly-and oligocrystalline 316L wires 136 Effect of processing conditions on the structure, electrical and mechanical properties of melt mixed high density polyethylene/multi-walled CNT composites in compression molding S. Gach, A. Schwedt, S. Olschok, U. Reisgen and J. Mayer 148 Confirmation of tensile residual stress reduction in electron beam welding using low transformation temperature materials (LTT) as localized metallurgical injection-Part 1: Metallographic analysis T. Srinivasa Rao, G. Madhusudhan Reddy and S. R. Koteswara Rao 155 Investigation on variations in hardness and microstructure of in-process cooled 7075 aluminum alloy friction stir welds M. Farajian, V. Hardenacke, W. Pfeiffer, M. Klaus and J. R. Kornmeier 161 Numerical and experimental investigations on shot-peened high-strength steel by means of hole drilling, X-ray, synchrotron and neutron diffraction analysis G. Sun and Z. Zhou 166 Ultrasonic imaging of particle distribution in SiCp/Al composites 183 Finite element analysis of a vibration test bed frame J. Gülen and M. İskeçeli 188 Removal of methylene blue by using porous carbon adsorbent prepared from carbonized chestnut shell

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Interfacial shear strength studies of experimental carbon fibres, novel thermosetting polyurethane and epoxy matrices and bespoke sizing agents

Cited by 62 publications

References 15 publications

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Improving the interfacial property of carbon fiber/PI resin composite by grafting modification of carbon fiber surface

Enhanced fracture toughness of nanostructured carbon‐fiber reinforced poly(urethane‐isocyanurate) composites at low concentrations

Comparative characterization of quasi-static and cyclic deformation behavior of glass fiber-reinforced polyurethane (GFR-PU) and epoxy (GFR-EP)

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