The effectiveness of oyster filler on the physical and mechanical properties of novel dental restorative composite

AlBadr, Rafid M.; Halfi, Sadam A.; Ziadan, Kareema M.

doi:10.1063/5.0031467

Cited by 4 publications

(4 citation statements)

References 25 publications

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“…The average percentage mass loss of heat-treated waste oyster shells was calculated by considering the weight of the sample before (m i ) and after (m f ) the treatment using Eq. (1). Each sample was weighed using a high-accuracy balance (4 d.p.…”

Section: Materials Characterizationmentioning

confidence: 99%

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Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Rosli,

Jameel,

Mayzan

et al. 2024

Nano Biomedicine and Engineering

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The effect of the thermal treatment of waste oyster (Crassostrea belcheri) shells on different properties was explored. In this preliminary work, the waste oyster shells were collected from Muar River, Malaysia. All samples were cleaned, dried, and subjected to a simple heat treatment in air at 500-1 200 °C. All heat-treated samples were characterized to determine their mass loss, chemical composition, crystalline phase, surface morphology, and powder density properties. Changing the temperature from 500 to 1 200 °C increases the calcium (Ca) food content in oyster shells. Furthermore, the decomposition of calcium carbonate (CaCO 3 ) from 98.15 wt.% to 99.07 wt.% was completed at 682 °C with 45 wt.% mass loss in a controlled nitrogen environment. When heat treatment processes are conducted in air, only 14.74 wt.% mass loss is recorded. The X-ray diffraction results confirmed that CaCO 3 successfully transformed α peak (CaO 4 ) to γ peak and η peak (CaO) at an angle (θ) of 30° and at above 800 °C. The Fourier transform infrared (FTIR) Result revealed changes in functional groups as the temperature increased. The phase transformation and morphological analysis agree with measured powder density values from 2.63 to 2.30 g•cm −3 . All these findings indicate that heated waste oyster shells are a potential source of calcium minerals and can be used for biomaterial products.

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Section: Materials Characterizationmentioning

confidence: 99%

“…Generally, two commercial species-the slipper oyster (Crassostrea iredalei) and the tropical oyster (Crassostrea belcheri)-are cultured or naturally present in Malaysian rivers [1]. The wild C. belcheri is the most popular species, being marketed or consumed as an exotic and luxury food in the area near Muar River, Johor [2].…”

Section: Introductionmentioning

confidence: 99%

Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Rosli,

Jameel,

Mayzan

et al. 2024

Nano Biomedicine and Engineering

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“…Recently, researchers have tried to recycle the waste oyster shells (WOS) as a constituent of construction materials [5,6]. Oyster shells are mainly composed of CaCO 3 (approximately 96%), which has no adverse effect on the cement hydration and only plays a role as the filler in cement matrix [7,8]. The WOS is usually crushed into small particles and used as a substitute for fine aggregate.…”

Section: Introductionmentioning

confidence: 99%

“…However, the research of Safi [13] showed that the mixed oyster shell would not significantly influence the specimen in compressive strength because of the excellent adhesion between shell and cement. WOS is acknowledged as suitable for use in cement-based materials, and a maximum of 40% replacement is suggested in the report [7]. Conclusions drawn from the reported studies are quite uncertain owing to different experiment parameters.…”

Section: Introductionmentioning

confidence: 99%

Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling

et al. 2021

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In order to solve the problem of lack of natural river sand, crushed waste oyster shells (WOS) were used to replace river sand. By replacing 20% river sand, WOS mortar with different particle sizes of WOS were made for the experiment. Through experimental observation, the initial slump and slump flow loss rate were studied. The effects of different particle sizes and curing times on the compressive strength, flexural strength, static elastic modulus, and dry shrinkage of WOS mortar were analyzed. The relationship formulas between the compressive strength, flexural strength, particle size, and curing age were proposed. The results showed that the setting time and slump flow decreased with a decrease in the particle size of WOS. It was also found that the mortar with fine crushed WOS had high compressive strength, flexural strength, and static elastic modulus at both early and long-term curing age. A formula was proposed to describe the development of the compressive strength with the particle size of WOS and curing time, and the relations among these mechanical properties were discussed. Furthermore, drying shrinkage increased when WOS was used and could not satisfy the standard requirement of 0.075%. In contrast, the addition of fine WOS and double-dose sulfonated naphthalene-formaldehyde superplasticizer (SNF SP) reduced the shrinkage rate of the mortar by 8.35% and provided better workability and mechanical properties for mortar.

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Synthesis, characterization and biomedical applications of Poly (methyl methacrylate)/Chitosan (derived from oyster shell powder)

Sahoo

Biswal

2023

Materials Today: Proceedings

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The effectiveness of oyster filler on the physical and mechanical properties of novel dental restorative composite

Cited by 4 publications

References 25 publications

Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Simple Thermal Treatment of Waste Oyster ( Crassostrea belcheri) Shells for the Production of Calcium Minerals in Biomaterials Application

Particle Size Effect of Oyster Shell on Mortar: Experimental Investigation and Modeling

Synthesis, characterization and biomedical applications of Poly (methyl methacrylate)/Chitosan (derived from oyster shell powder)

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