Characterizing the interfacial shear strength of graphite/epoxy composites containing functionalized graphene

Lee, Ming Wei; Wang, Tai Yuan; Tsai, Jia-Lin

doi:10.1016/j.compositesb.2016.05.001

Cited by 34 publications

(19 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…compared to the non-doped epoxy matrix materials, confirming the finding of the earlier studies using the micro-bond test described above [61]. Overall, GRM can work as hierarchical fillers (with high surface area and capillary wetting by the surrounding polymer) to improve the interfacial interactions of the FRC; the mechanisms of such improvement are still under investigation, being probably due to increased mechanical locking (friction), the local enhancement of the shear modulus of the matrix caused by the GRM sheets and a more tortuous path of crack propagation [71].…”

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Msupporting

confidence: 89%

“…In both cases a significant increase is found in the interfacial shear strength with the presence of the GRM. The behaviour is shown clearly in Table 2 where it can be seen that the IFSS increases with the addition of pristine graphene to the epoxy resin in the droplet [61], in particular when the graphene is chemically functionalized. Lee and coworkers [61] examined the surfaces of their fibers after a droplet of polymer matrix was detached and concluded that the interfacial failure mechanism was not affected by the presence of the graphene in the epoxy resin matrix.…”

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 97%

“…The behaviour is shown clearly in Table 2 where it can be seen that the IFSS increases with the addition of pristine graphene to the epoxy resin in the droplet [61], in particular when the graphene is chemically functionalized. Lee and coworkers [61] examined the surfaces of their fibers after a droplet of polymer matrix was detached and concluded that the interfacial failure mechanism was not affected by the presence of the graphene in the epoxy resin matrix. They explained the increase in IFSS with the presence of the GRM in the resin as being due to the graphene leading to a more complicated path through resin adjacent to the carbon fiber as shown in Figure 8.…”

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 97%

“…One method that has been employed is the micro-bond test whereby the force needed to pull a single fibre out of a resin droplet is measured from which the strength of the interface (IFSS) can be determined. This has been done both for specimens where the GRM is introduced into the sizing of carbon fibres [60] and others for which the GRM has been added to the resin used for the droplet [61]. In both cases a significant increase is found in the interfacial shear strength with the presence of the GRM.…”

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 99%

See 3 more Smart Citations

Graphene and related materials in hierarchical fiber composites: Production techniques and key industrial benefits

Valorosi

Meo

Blanco-Varela

et al. 2020

Composites Science and Technology

View full text Add to dashboard Cite

This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

show abstract

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Msupporting

confidence: 89%

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 97%

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 97%

Section: Nanoscale Interfacial Interactions Of Grm With the Polymer Mmentioning

confidence: 99%

See 2 more Smart Citations

Graphene and related materials in hierarchical fiber composites: Production techniques and key industrial benefits

Valorosi

Meo

Blanco-Varela

et al. 2020

Composites Science and Technology

View full text Add to dashboard Cite

show abstract

“…The wide‐scan spectra of RGO and GO are shown in Figure (a). Two obvious binding‐energy peaks were observed at 284.3 and 531.5 eV and were assigned to C1s and O1s, respectively . A small peak at 397.2 eV was assigned to N1 s of ammonium gallate from gallic acid and ammonia .…”

Section: Resultsmentioning

confidence: 99%

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Yan

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

We successfully prepared a graphene-modified carbon fiber (CF) sizing agent with good dispersity and stability by dispersing reduced graphene oxide (RGO) into an emulsion-type sizing agent. RGO was obtained by the reduction of graphene oxide (GO) with the help of gallic acid. The influence of the graphene-modified sizing agent on the interfacial properties of the CF-epoxy resin composites was investigated with microbond testing and the three-point bending method. The results show that optimized interfacial properties were achieved when the size of the modified graphene was less than 1 μm, the content of RGO was 20 ppm, and the pH value of the sizing agent was 10.5. The interfacial shear strength of the composites reached 92.3 MPa, which was 29.6% higher than that of the composites with unmodified CFs. Compared with commercial-CF-fabric-reinforced composites, the interlaminar shear strength of the composites treated with the RGO-modified sizing agent increased by 21.5%. Both the interfacial and interlaminar failure morphologies of the composites were examined with scanning electron microscopy (SEM). The results show that a large amount of residual resin adhered to the surfaces of the CFs treated with the RGO-modified sizing agent; this indicated good interfacial properties between the CFs and the resin matrix.

show abstract

Evolving Strategies for Producing Multiscale Graphene‐Enhanced Fiber‐Reinforced Polymer Composites for Smart Structural Applications

et al. 2020

View full text Add to dashboard Cite

Graphene has become an important research focus in many current fields of science including composite manufacturing. Developmental work in the field of graphene‐enhanced composites has revealed several functional and structural characteristics that promise great benefits for their use in a broad range of applications. There has been much interest in the production of multiscale high‐performance, lightweight, yet robust, multifunctional graphene‐enhanced fiber‐reinforced polymer (gFRP) composites. Although there are many reports that document performance enhancement in materials through the inclusion of graphene nanomaterials into a matrix, or its integration onto the reinforcing fiber component, only a few graphene‐based products have actually made the transition to the marketplace. The primary focus of this work concerns the structural gFRPs and discussion on the corresponding manufacturing methodologies for the effective incorporation of graphene into these systems. Another important aspect of this work is to present recent results and highlight the excellent functional and structural properties of the resulting gFRP materials with a view to their future applications. Development of clear standards for the assessment of graphene material properties, improvement of existing materials and scalable manufacturing technologies, and specific regulations concerning human health and environmental safety are key factors to accelerate the successful commercialization of gFRPs.

show abstract

Characterizing the interfacial shear strength of graphite/epoxy composites containing functionalized graphene

Cited by 34 publications

References 26 publications

Graphene and related materials in hierarchical fiber composites: Production techniques and key industrial benefits

Graphene and related materials in hierarchical fiber composites: Production techniques and key industrial benefits

Improving the interfacial properties of carbon fiber–epoxy resin composites with a graphene‐modified sizing agent

Evolving Strategies for Producing Multiscale Graphene‐Enhanced Fiber‐Reinforced Polymer Composites for Smart Structural Applications

Contact Info

Product

Resources

About