A nanostructured cellulose-based interphase layer to enhance the mechanical performance of glass fibre-reinforced polymer composites

Kumar, Sandeep; Graninger, Georg; Hawkins, Stephen C.; Falzon, Brian

doi:10.1016/j.compositesa.2021.106475

Cited by 27 publications

(15 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…66 The platform-like transition at point 4 (Figure 3h,i), where the sizing agent interacts with the NMs, in CNC−GnP and CNC− CNT-coated composites indicates the improved molecular compatibility of the sizing agent and epoxy. A similar trend was also reported in amide acid/silicon oxide 61 and TEMPOmodified CNC 67 -reinforced composites. This suggests that the interactions of the sizing agent and NMs play an important role in the formation of the transition layer.…”

Section: Resultssupporting

confidence: 87%

“…Overall, the improvement in IFSS can also be attributed to the synergy between several mechanisms including (i) increase of the wettability of reinforcing fiber with epoxy due to the presence of abundant −OH groups from CNCs, , (ii) increase of the surface roughness of CFs by the coating that leads to mechanical interlocking, ,,, (iii) physical and chemical bonding between CF-NMs-epoxy, , and (iv) uniform dispersion and distribution of NMs and stability of the coating suspensions. The introduction of the −OH group via CNCs makes the CF surface attractive for chemical bonds to the epoxy and CF sizing agent.…”

Section: Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Kaynan

Pérez

Asadi

2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Cellulose nanocrystals (CNCs) enable the effective coating of carbon fibers (CFs) with pristine carbon nanotubes (CNTs) and graphene nanoplatelets (GnPs). Herein, we articulate the mechanisms that form the interface of CNC-bonded CNT and CNC-bonded GnP-CF reinforced polymer (CFRP) composites that are suitable for structural applications. We show that CNCs provide a suitable platform to engineer the interface of hybrid composites. We demonstrate that the hybrid nanomaterials, i.e., CNC and CNT/GnP, alter the chemical composition of the interface and its properties, and despite the similar elemental composition of the CNT and GnP, the mechanical properties of the produced composites differ. Our results show that the presence of CNC–CNT and CNC–GnP creates a 4 μm interfacial region that leads to a 200 and 145% increase in interfacial shear strength and a 46 and 28% enhancement in interlaminar shear strength, respectively. Furthermore, density functional theory calculations show that the binding energy between the CNC–CNT and CF sizing agent is 14% higher than that of CNC–GnP underlining the effect of chemical and physical interactions in the observed difference in mechanical properties. The understanding gained from this study highlights a path forward bottom-up manufacturing of hybrid composites with an engineered microstructure and properties from the molecular level and nanoscale to higher scales.

show abstract

Section: Resultssupporting

confidence: 87%

Section: Results and Discussionmentioning

confidence: 99%

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Kaynan

Pérez

Asadi

2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

Section: Results and Discussion (More Explanation In Your Discussion)mentioning

confidence: 99%

“…This significant difference is verified by increasing Y by 3400% and E i by 1045%. As a result, strong interphase is required to transfer more stress from the polymer matrix to nanoparticles, 44,63,68,70 so the compatibilizer or modified nanocellulose has an essential role in the fine dispersion of nanocellulose in a polymeric matrix, especially a non-polar ones. 10,24,51,54,55,71 As noted earlier, several micro-mechanics modeling approaches, such as Halin-Tsai, Cox, and Mori-Tanaka models, 52,72,73 are common for predicting the modulus and strength of nanocellulose composites, disregarding interphase parameters.…”

mentioning

confidence: 99%

Interphase parameter prediction in nanocellulose composites using young modulus modeling

Ghasemi

Espahbodi

et al. 2023

Journal of Composite Materials

View full text Add to dashboard Cite

In this study, the Ji-developed model for modeling the young modulus of nanocomposites was suggested to predict interphase thickness (Y) and modulus (Ei). The resulting model was evaluated for accuracy by comparing it to the experimental young moduli of various samples. Additionally, the effects of using a compatibilizer or modified nanocellulose on the interphase thickness and modulus of nanocellulose composites are investigated. Those samples exhibiting the highest Y and Ei parameters are TPS/NFC, PA6/NCC, and PVA/NCC, which can form hydrogen bonds with nanocellulose hydroxyl groups due to their ability to form hydrogen bonds. When compatibilizers are applied to nanocomposites or modified nanocellulose is applied in the polymer matrix, interphase parameters increase. In PLA/NFC composites, MA coupling agents were used to increase Y by 4000%, while Ei increased by 1045%. Moreover, the Y and Ei of CNCs modified with aminopropyl triethoxysilane (APS) in polyamide-6/NCC increased from 0.35 to 0.69 (97.14%) and 35.26 to 58.7 (66.47%). The Ji model was also investigated with and without considering the interphase thickness. As a result, the model became better fitted to experimental young modulus results by considering the interphase parameter in nanocomposites.

show abstract

“…The reason for their excellent mechanical and impact qualities are due to interface and matrix modification. [17,18] A comparison between the properties of different natural fibers is shown in Table 1. Compared to E-glass fibers natural fibers have lower tensile properties and elongation at the break of natural fibers are all lower than those of E-glass fiber.…”

Section: Introductionmentioning

confidence: 99%

Effect of graphene on tribology, mechanical, and thermal properties of flax/E‐glass/epoxy hybrid nanocomposites

Shanmugam

Meenakshisundaram

2022

Polymer Composites

View full text Add to dashboard Cite

Polymer nanocomposites have received significant attention in the tribology and mechanical application due to their exceptional wear resistance, which cannot be expected in polymers. This study, involves preparation and fabrication of graphene hybrid (flax/E-glass/epoxy) fiber-reinforced polymer (HFRP) composites using compression molding. A study of the effect of graphene on the microhardness and wear behavior of HFRP composites was made using pin-on-disk tests at three different loads of 5, 10, and 15 N as per ASTM standards. Compared to HFRP composites, graphene in HFRP composites exhibits a distinguished enhancement in thermal stability, microhardness and tribological performance due to the formation of strong covalent bonds between graphene and epoxy matrix. Surface features were observed using a scanning electron microscope (SEM). The addition of graphene (0.0-1.2 wt%) to the matrix, especially 0.6 wt% of graphene in HFRP composites revealed extraordinary tribological properties, with a 35% decrease in the friction coefficient and wear rate under abrasive wear conditions. The result of the graphene in HFRP composites looks promising in wear-resistant materials and other highperformance areas in the automobile and aerospace industry.

show abstract

A nanostructured cellulose-based interphase layer to enhance the mechanical performance of glass fibre-reinforced polymer composites

Cited by 27 publications

References 46 publications

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Cellulose Nanocrystal-Enabled Tailoring of the Interface in Carbon Nanotube- and Graphene Nanoplatelet-Carbon Fiber Polymer Composites: Implications for Structural Applications

Interphase parameter prediction in nanocellulose composites using young modulus modeling

Effect of graphene on tribology, mechanical, and thermal properties of flax/E‐glass/epoxy hybrid nanocomposites

Contact Info

Product

Resources

About