Natural fiber-mediated epoxy composites – A review

Mittal, Varun; Saini, Rahul; Sinha, Shishir

doi:10.1016/j.compositesb.2016.06.051

Cited by 280 publications

(135 citation statements)

References 78 publications

Supporting

Mentioning

133

Contrasting

Unclassified

Order By: Relevance

“…[19][20][21] Zafar et al 22 analyzed the chemical alkalization treatment and the mixed treatment (NaOH + Silane) of jute composite. The thermogravimetric (TG), differential scanning calorimetry (DSC), and dynamic-mechanical analysis (DMA) tests are used to study the degradation, glass transition, and viscoelastic behavior of natural polymers.…”

Section: Introductionmentioning

confidence: 99%

“…The thermogravimetric (TG), differential scanning calorimetry (DSC), and dynamic-mechanical analysis (DMA) tests are used to study the degradation, glass transition, and viscoelastic behavior of natural polymers. [19][20][21] Zafar et al 22 analyzed the chemical alkalization treatment and the mixed treatment (NaOH + Silane) of jute composite. Mixed treatment proved to be more efficient in increasing interfacial adhesion and thermal stability of the composites, but alkaline treatment improved the crystallinity index of jute fibers when compared to both untreated fibers and those that underwent mixed treatment.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of chemical treatment on the thermal properties of hybrid natural fiber‐reinforced composites

Neto

Lima

Cavalcanti

et al. 2018

J of Applied Polymer Sci

146

View full text Add to dashboard Cite

The main objective of this work is to study the effect of chemical treatment on the thermal properties of hybrid natural fiber-reinforced composites (NFRCs). Different chemical treatments [i.e., alkalized and mixed (alkalized+ silanized)] were used to improve the adhesion between the natural fibers (jute, ramie, sisal, and curauá) and the polymer matrix. A differential scanning calorimetry, thermogravimetry, and a dynamic mechanical analysis were performed to study the thermal properties of hybrid NFRC. It was found that the chemical treatments increased the thermal stability of the composites. Scanning electron microscopy images showed that the chemical treatments altered the morphology of the natural fibers. A rougher surface was observed in case of alkali treated fiber, whereas a thin coating layer was formed on the fiber surface during the mixed treatment. However, for some fibers (i.e., sisal and rami), the chemical treatment has a positive impact on the composite properties, whereas for the jute and curauá composites, the best behavior was found for untreated fibers.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of chemical treatment on the thermal properties of hybrid natural fiber‐reinforced composites

Neto

Lima

Cavalcanti

et al. 2018

J of Applied Polymer Sci

146

View full text Add to dashboard Cite

show abstract

“…Changing the chemical composition and the geometric structure of the surface are effective approach to tune the surface wettability [37][38][39][40][41][42]. The limited attempts can be found on the related subject of surface wettability on SMP materials.…”

Section: Introductionmentioning

confidence: 99%

Spontaneous biaxial pattern generation and autonomous wetting switching on the surface of gold/shape memory polystyrene bilayer

Liu

et al. 2017

Composites Part B: Engineering

View full text Add to dashboard Cite

In this paper, shape memory effect induced initiation and evolution of surface patterns (wrinkles and cracks) were studied on the surface of gold/shape memory polystyrene (PS) bilayer, alongside with their impacts on autonomous surface wetting effects. Surface wrinkling was generated as a result of in-plane compression in the gold film where the thermal-induced shape memory effect occurred on the foundation layer.Cracks were generated on gold surface when the wrinkle pattern was further developed at a higher strain. The in-plane surface morphological bifurcation was observed when the crack patterns were developed perpendicular to the wrinkles direction, which is induced by biaxial stress transformation within the gold thin film because of the lateral Poisson's effect. The experimental mechanics investigations describe the relationships of the initiation/evolvement of surface morphology upon gold/shape memory PS bilayer with respects to various settings, such as the thicknesses of gold films, the applied strain on polymer layer, etc. The associated impact on surface wetting condition brought by the generated biaxial pattern on gold surface was studied. The water contact angle fluctuates within a narrow range according to the pre-strain for the samples after heating under the same plasma treatment times, which indicates that the biaxial pattern (cracks and wrinkles) in this paper have a little effect on the hydrophobicity of the gold film surface when the heated samples were treated by plasma for same times. After the surface plasma treatment, the surface hydrophilicity of the samples after post-annealing is significantly higher than that of the sample after deposition. And the contact angle decreases steadily as the air plasma treatment time is increased, the controllable surface hydrophobicity of gold coated PS bilayer can be achieved by tuning the plasma treatment time.

show abstract

“…The following conclusions can be drawn from the results obtained by the mechanical property tests, amplitudedependent damping tests, pulsed excitation modal and SEM analyses. 1. The tensile and flexural properties of the RF/PP composites increase with the increase of fiber content.…”

Section: Resultsmentioning

confidence: 95%

Amplitude‐dependent damping properties of ramie fiber‐reinforced thermoplastic composites with varying fiber content

Chen

et al. 2019

Polymer Composites

View full text Add to dashboard Cite

This work presented the experimental study on the free vibration characteristics of short ramie fiber‐reinforced polypropylene composites (RF/PPs). Effects of fiber content and vibration amplitude on damping properties of the fabricated RF/PP composites, such as damping ratio, natural frequency, and associated mode shape, were investigated based on the amplitude‐dependent damping tests and pulsed excitation modal analysis. The results showed that an increase in fiber content increased the damping properties of composites. It was also found that a critical amplitude (Ac) appeared on the amplitude‐dependent damping ratio curves, at which the damping ratio almost reached the maximum value because the highest amount of the fiber/matrix slippage happened in the composite system. The critical amplitudes for composites with 10, 20, and 30 wt% fiber content were of 6, 8, and 10 mm, respectively. Whereas, the vibration amplitude had negligible influence on the natural frequency of those RF/PP composites. The pulsed excitation test results indicated that both the first and second damping ratios presented an increasing trend with the increase of fiber content. And the second damping ratios were higher than their corresponding first damping ratios due to the lager vibration amplitude in the second mode shape, which could generate more fiber/matrix slippage in composites. Additionally, the tensile and flexural properties of the RF/PP composites improved with the increase of fiber content due to the fiber transferring force effect and good interface quality based on the scanning electron microscopy analysis. POLYM. COMPOS., 40:2681–2689, 2019. © 2019 Society of Plastics Engineers

show abstract

Natural fiber-mediated epoxy composites – A review

Cited by 280 publications

References 78 publications

Effect of chemical treatment on the thermal properties of hybrid natural fiber‐reinforced composites

Effect of chemical treatment on the thermal properties of hybrid natural fiber‐reinforced composites

Spontaneous biaxial pattern generation and autonomous wetting switching on the surface of gold/shape memory polystyrene bilayer

Amplitude‐dependent damping properties of ramie fiber‐reinforced thermoplastic composites with varying fiber content

Contact Info

Product

Resources

About