Sea Shells And Natural Fibres Composites: A Review

Ramnath, B. Vijaya; Jeykrishnan, J.; Ramakrishnan, G.; Barath, B.; Ejoelavendhan, E.; raghav, P. Arun

doi:10.1016/j.matpr.2017.11.284

Cited by 52 publications

(12 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The crystallinity of the matrix is increased by approximately 13% when lower concentrations of MS are added. These results are in agreement with those of Melo et al 33 This is probably due to a poor distribution of the high content of MS particles in the HDPE matrix.…”

Section: Ftir Analysissupporting

confidence: 93%

See 1 more Smart Citation

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Sidia

Bensalah

2020

Journal of Composite Materials

View full text Add to dashboard Cite

This article highlights the importance of the addition of Mollusc shell (MS) particles, as bio-filler, on the tribological behavior of high-density polyethylene (HDPE) matrix. The elaborated biocomposites are intended to be used as an orthopedic replacement biomaterial. Different mass content of MS (0, 5, 10, 15 and 20 wt. %) have been added to the HDPE matrix. FTIR analysis, crystallinity rate and Rockwell hardness of different bio-composites were performed. A reciprocating pin-on-disc tribometer was used to fulfil dry wear tests. FTIR analysis showed that the presence of MS particles improved the crystallinity of the HDPE phase. Adding to that, it was found that MS improved the hardness, friction coefficient and wear resistance of the HDPE polymer. In fact, by adding 5 wt. % of MS to the HDPE, good tribological properties were achieved. Scanning Electron Microscopy (SEM) was performed to investigate the wear morphology of biocomposites under dry condition. SEM images showed that the morphology of the worn surfaces had been improved by the addition of MS to the polymer. Finally, a wear scenario was proposed.

show abstract

Section: Ftir Analysissupporting

confidence: 93%

“…Vijaya Ramnath et al. 34 have mentioned that most sea shells present high hardness, toughness and tensile strength.…”

Section: Resultsmentioning

confidence: 99%

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Sidia

Bensalah

2020

Journal of Composite Materials

View full text Add to dashboard Cite

show abstract

“…These results were similar to those obtained in the study by Rao, who evaluated the roughness of acrylic resins polished with a universal paste and pumice stone paste and concluded that all the pastes analyzed decreased the roughness values. Similarly, various investigations that evaluated this property with commercial polishing pastes frequently used in dentistry have obtained similar results to those of the present study [ 6 , 12 – 17 ].…”

Section: Discussionsupporting

confidence: 88%

“…In vivo studies have shown that values above the 0.2 μm threshold for acrylic resins contribute to an increase in bacterial plaque in the oral cavity [5,[11][12][13][14][15][16]. Using polishing pastes with adequate abrasive properties is recommended for the polishing of acrylic resins to reduce roughness [10,17].…”

Section: Introductionmentioning

confidence: 99%

A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)

Guerra

Meneses

Caballero-García

et al. 2021

International Journal of Dentistry

View full text Add to dashboard Cite

Objective. The aim of this study was to evaluate the effectiveness of a mollusk shells polishing paste (Donax obesulus) on the surface roughness of acrylic resin poly (methylmethacrylate) (PMMA). Methods. This study was an in vitro experimental design. A sample size of 72 was divided into 4 groups of n = 18 each. PMMA specimens were prepared and polished with the evaluated pastes using mollusk shells (experimental paste) and pumice stone. Surface roughness (μm) was measured using a profilometer after polishing the PMMA samples. The paired Wilcoxon test was used to evaluate the roughness values at 24 and 48 hours. Then, the Mann–Whitney U test was used to identify the differences between the effects of the two groups evaluated with a significance level of α = 0.05. Results. The roughness difference between the pastes under study was compared, and mean values of 0.50 ± 0.07 μm (mollusk shell paste group) and 0.45 ± 0.12 μm (pumice group) were obtained. No statistically significant differences were found between the experimental paste and pumice stone paste p = 0.309 . The specimens polished with pumice stone paste showed higher roughness values, while those polished with the experimental paste exhibited the lowest values. Conclusion. In summary, mollusk shells polishing paste had a decrease in roughness values compared to pumice, although these differences were not statistically significant.

show abstract

“…Biological materials can be used as substitutions of synthetic materials [ 14 , 15 , 16 ]. Some researchers have dealt with mechanical properties of polymeric composites with a hard filler from various shells [ 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. This research deals with the utilization of the biological material as the adhesive bond filler based on eggshells in the microparticle form.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Static Tests of Hybrid Adhesive Bonds Based on Biological Reinforcement in the Form of Eggshell Microparticles

et al. 2020

View full text Add to dashboard Cite

The paper is focused on the research of the cyclic loading of hybrid adhesive bonds based on eggshell microparticles in polymer composite. The aim of the research was to characterize the behavior of hybrid adhesive bonds with composite adhesive layer in quasi-static tests. An epoxy resin was used as the matrix and microparticles of eggshells were used as the filler. The adhesive bonds were exposed to cyclic loading and their service life and mechanical properties were evaluated. Testing was performed by 1000 cycles at 5–30% (165–989 N) and 5–70% (165–2307 N) of the maximum load of the filler-free bond in the static test. The results of the research show the importance of cyclic loading on the service life and mechanical properties of adhesive bonds. Quasi-static tests demonstrated significant differences between measured intervals of cyclic loading. All adhesive bonds resisted 1000 cycles of the quasi-static test with an interval loading 5–30%. The number of completed quasi-static tests with the interval loading 5–70% was significantly lower. The filler positively influenced the service life of adhesive bonds at a higher amount of quasi-static tests, i.e., the safety of adhesive bonds increased. The filler had a positive effect on adhesive bonds ABF2, where the strength significantly increased up to 20.26% at the loading of 5–30% against adhesive bonds ABF0. A viscoelasticity characteristic (creep) of the adhesive layer occurred at higher values of loading, i.e., between loading 5–70%. The viscoelasticity behavior did not occur at lower values of loading, i.e., between loading 5–30%.

show abstract

Sea Shells And Natural Fibres Composites: A Review

Cited by 52 publications

References 14 publications

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

Tribological properties of High Density Polyethylene based composite: The effect of mollusc shell particles under dry condition

A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)

Quasi-Static Tests of Hybrid Adhesive Bonds Based on Biological Reinforcement in the Form of Eggshell Microparticles

Contact Info

Product

Resources

About