Study on the adhesive properties of reactive liquid rubber toughened epoxy-clay hybrid nanocomposites

Szymańska, Joanna; Bakar, M.; Białkowska, A.; Kostrzewa, M.

doi:10.1515/polyeng-2017-0099

Cited by 18 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, due to the high crosslink density, they are relatively brittle and have poor resistance to crack initiation and growth which makes their applications to be limited in many areas . So far, various toughening agents have been used to improve the toughness of epoxy resins, among which rubber particles , thermoplastics , and rigid fillers can be named. Many attempts have been made to improve the toughness of the resins by the inclusion of carboxyl‐terminated butadiene acrylonitrile (CTBN) liquid rubber.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hybridization of Carboxyl‐Terminated Acrylonitrile Butadiene Liquid Rubber and Alumina Nanoparticles on the Fracture Toughness of Epoxy Nanocomposites

et al. 2018

View full text Add to dashboard Cite

The aim of this work was to study the effect of carboxyl‐terminated acrylonitrile butadiene (CTBN) liquid rubber and alumina nanoparticles (Al2O3) on the fracture toughness of an epoxy resin. Hybrid nanocomposite samples were prepared by the inclusion of the optimum concentration of CTBN (15 phr) and 0–10 phr Al2O3 into the epoxy matrix. Samples were examined using Fourier transform infrared spectroscopy, scanning electron microscopy, and fracture toughness test. Fractal dimension values were also estimated from the edge of the fracture surfaces for the hybrid samples. The maximum value of critical stress intensity factor, K IC, was found for the non‐hybrid sample containing 15 phr CTBN and the G IC values showed an increasing trend as it was expected from the increase in K IC values and decrease in Young's modulus. The maximum K IC for the hybrid samples was obtained for the one containing 7 phr Al2O3 and an almost similar trend was observed for G IC, accompanied with the significant changes in the fracture surface morphology. These were consistent with the fractal dimension results, where the sample containing 7 phr Al2O3 exhibited the maximum roughness. Therefore, the hybrid system of epoxy/CTBN (15 phr)/Al2O3 (7 phr) was found to be the optimum formulation. POLYM. COMPOS., 40:2700–2711, 2019. © 2018 Society of Plastics Engineers

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Hybridization of Carboxyl‐Terminated Acrylonitrile Butadiene Liquid Rubber and Alumina Nanoparticles on the Fracture Toughness of Epoxy Nanocomposites

et al. 2018

View full text Add to dashboard Cite

show abstract

“…However, the incorporation of 1 – 3 wt% nanobent improved K C parameter values by approximately 30 – 60% as compared with the unmodified resin. The increase of the mechanical properties of epoxy resin due to nanoparticles (nanobent) was largely reported in literature and attributed to the intercalation and exfoliation processes of nanolayers .…”

Section: Resultsmentioning

confidence: 93%

“…The results of the modeling were in good agreement with those obtained experimentally. Various studies investigated the preparation and properties evaluation of epoxy resin by a combination of both thermoplastic materials and nanolayered particles aiming at reaching synergism effect and hence improving fracture toughness and thermal resistance of the matrix .…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of thermoplastic and nanoclay on the performance properties and morphology of epoxy resin

et al. 2018

Self Cite

View full text Add to dashboard Cite

The present work investigates the properties and morphology of nanobent/poly(methyl methacrylate) (PMMA)/epoxy resin hybrid nanocomposites which were successfully prepared by solvent and ultrasonication methods. Nanobent ZS1 were added in amount of 1, 2, 3, and 4 wt% and 5, 10, and 15 wt% for PMMA. The fracture toughness (impact strength and critical stress intensity factor) and flexural properties were evaluated for epoxy composites. Obtained results showed improvement of the epoxy resin mechanical properties due to the addition of PMMA and nanobent. Composites containing 5 wt% of polymeric modifier or 1 wt% nanobent exhibited maximally improved properties. In the case of hybrid composites, synergistic effect was obtained with flexural strain at break and flexural energy to break of hybrid nanocomposite based on 1 wt% nanobent and 5 wt% PMMA. However, epoxy nanocomposites based on 2 wt% nanobent and 5 wt% PMMA showed synergism with IS and brittle fracture energy toward the composites with one modifier. Fourier transform infrared (FTIR) spectra analysis confirmed interactions between incorporated modifiers and reactive groups of the epoxy matrix. Moreover, scanning electron microscope (SEM) micrographs of hybrid epoxy nanocomposites exhibited a morphology with large plastic yielding associated with significant roughness of the fracture surface with embedment of nanobent in the polymer system. This study clearly demonstrates that the improvement of mechanical properties of the epoxy resin could be attributed to the synergistic toughening effect of PMMA and nanobent without deterioration of thermal stability. POLYM. COMPOS., 39:E2540–E2551, 2018. © 2018 Society of Plastics Engineers

show abstract

“…An observation at magnification indicated that BAQPS tended to agglomerate, which is likely due to the smaller d-spacing compared to BAQAS. On the other hand, increasing the amount of these bentonites to 3 wt.% caused a significant change in the structure and the formation of morphology with a structure characteristic for composites containing modified aluminosilicates ( Figure 14 g–j) [ 67 , 68 ].…”

Section: Resultsmentioning

confidence: 99%

The Mechanical Properties of Kevlar Fabric/Epoxy Composites Containing Aluminosilicates Modified with Quaternary Ammonium and Phosphonium Salts

Oliwa

2020

Materials

View full text Add to dashboard Cite

We investigated the effect of modified aluminosilicates, including bentonite from Armenia (BA) modified with quaternary ammonium salts (BAQAS) and phosphonium salts (BAQPS), on the mechanical properties and morphology of Kevlar/epoxy composites. The Kevlar/epoxy composites containing 1.0 or 3.0 wt.% modified bentonites were fabricated using the hand lay-up technique. The mechanical properties, including the tensile, flexural, and in-plane shear strength, were tested. Based on the obtained results, we found that the mechanical properties increased with modified bentonite loading. The best results were obtained for composites containing 3 wt.% BAQAS, as most of the mechanical properties were significantly improved (tensile strength 302.9 MPa (+30%), Young’s modulus 16.3 GPa (+17%), flexural modulus 23.4 GPa (+12.5%), in-plane shear strength 22.8 MPa (+24.5%), and in-plane shear modulus 677.2 MPa (+42%)). The obtained improvements in the mechanical properties are attributed to the uniform dispersion of the filler, which was confirmed by the highest increase in the intergallery spacing, from 28.3 Å for BAQAS to 45.1 Å for the composite with 3 wt.% BAQAS. Scanning electron microscopy (SEM) analysis of the brittle fracture surface indicated that the addition of modified bentonite to the epoxy matrix changed the morphology of the Kevlar/epoxy/organoclay composites and improved the fiber–matrix interfacial adhesion.

show abstract

Study on the adhesive properties of reactive liquid rubber toughened epoxy-clay hybrid nanocomposites

Cited by 18 publications

References 25 publications

Effect of Hybridization of Carboxyl‐Terminated Acrylonitrile Butadiene Liquid Rubber and Alumina Nanoparticles on the Fracture Toughness of Epoxy Nanocomposites

Effect of Hybridization of Carboxyl‐Terminated Acrylonitrile Butadiene Liquid Rubber and Alumina Nanoparticles on the Fracture Toughness of Epoxy Nanocomposites

Synergistic effects of thermoplastic and nanoclay on the performance properties and morphology of epoxy resin

The Mechanical Properties of Kevlar Fabric/Epoxy Composites Containing Aluminosilicates Modified with Quaternary Ammonium and Phosphonium Salts

Contact Info

Product

Resources

About