Bio-filler from waste shellfish shell: Preparation, characterization, and its effect on the mechanical properties on polypropylene composites

Li, Haiyan; Tan, Yiqiu; Zhang, Lu; Zhang, Yunxiang; Song, Yihu; Ye, Ying; Xia, Meisheng

doi:10.1016/j.jhazmat.2012.03.028

Cited by 127 publications

(63 citation statements)

References 33 publications

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“…trabecular bone (4 to12 MPa and 50 to 500 MPa, respectively [36] ). As the dispersion of fillers in polymer matrix was a significant factor influencing the mechanical properties of polymer composites [37][38][39][40] , the dispersion of nMgO in PHBV matrix with different nMgO content were characterized using SEM (Figure 4). After incorporation of nMgO, some bright spots appeared in the PHBV matrix; their amounts gradually increased with the nMgO content increasing.…”

Section: Resultsmentioning

confidence: 99%

An nMgO containing scaffold: Antibacterial activity, degradation properties and cell responses

Shuai

Guo

Gao

et al. 2024

IJB

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Bone repair failure caused by implant-related infections is a common and troublesome problem. In this study, an antibacterial scaffold was developed via selective laser sintering with incorporating nano magnesium oxide (nMgO) to poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). The results indicated the scaffold exerted high antibacterial activity. The antibacterial mechanism was that nMgO could cause oxidative damage and mechanical damage to bacteria through the production of reactive oxygen species (ROS) and direct contact action, respectively, which resulted in the damage of their structures and functions. Besides, nMgO significantly increased the compressive properties of the scaffold including strength and modulus, due to its excellent mechanical properties and uniform dispersion in the PHBV matrix. Moreover, the degradation tests indicated nMgO neutralized the acid degradation products of PHBV and benefited the degradation of the scaffold. The cell culture demonstrated that nMgO promoted the cellular adhesion and proliferation, as well as osteogenic differentiation. The present work may open the door to exploring nMgO as a promising antibacterial material for tissue engineering. Keywords: Nano magnesium oxide; antibacterial scaffolds; degradation properties; cytocompatibility; mechanical properties

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Section: Resultsmentioning

confidence: 99%

An nMgO containing scaffold: Antibacterial activity, degradation properties and cell responses

Shuai

Guo

Gao

et al. 2024

IJB

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“…The first step occurs at relative low temperatures with a very small weight loss around the 250 ºC which is due to the degradation of the organic content of the seashell [15]. The organic component is close to 2.4 wt.…”

Section: Figurementioning

confidence: 99%

Characterization of green composites from biobased epoxy matrices and bio-fillers derived from seashell wastes

et al. 2014

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The seashells, a serious environmental hazard, are composed mainly by calcium carbonate, which can be used as filler in polymer matrix. The main objective of this work is the use of calcium carbonate from seashells as a bio-filler in combination with eco-friendly epoxy matrices thus leading to high renewable contents materials.Previously obtaining calcium carbonate, the seashells were washed and grinded. The powder obtained and the resin was characterized by DSC, TGA, X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), and rheology plate-plate. The results show that addition of 30 wt. % of seashell bio-filler increase mechanical properties as flexural modulus (over 50%) and hardness Shore D (over 6%) and thermal properties as an increase around 13% in glass transitions temperature. The results show that the addition of calcium carbonate from seashells is an effective method to increase mechanical properties of bio-composite and to reduce the residue of seashells from industrial production.

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“…36 SEM images of neat epoxy showed brittle type of fracture while CB/EP and HB/ EP composites showed smooth fracture surfaces. Previous studies [13][14][15]20 have reported the use of organic compounds to improve the interaction between CaCO 3 and matrix. Cuttlebone particles having organic compounds on the surface by nature induced good interaction between filler and composites.…”

Section: Morphology Study Of Compositesmentioning

confidence: 99%

Sea coral-derived cuttlebone reinforced epoxy composites: Characterization and tensile properties evaluation with mathematical models

Periasamy

Mohankumar

2015

Journal of Composite Materials

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Using sea coral as a new bio-mass in processing of particle-filled polymer composites is very promising in the field of structural applications. In this study, waste cuttlebone was used as a filler material in epoxy composites. In general, cuttlebone particles derived from crushing and sieving were in aragonite polymorph form. In the present study, calcite polymorph form was obtained after heat treatment of cuttlebone particles at 400 C. Presence of polymorph form, elemental composition and thermal stability were confirmed with different characterization techniques. Composites were prepared with aragonite and calcite polymorph form cuttlebone particles and commercially available calcium carbonate as reinforcement in epoxy matrix. Tensile tests were carried out to determine the composites strength and compared with predefined theoretical models. Heat-treated cuttlebone reinforced epoxy composites showed higher tensile properties and better interaction between filler and matrix than other composites.

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Bio-filler from waste shellfish shell: Preparation, characterization, and its effect on the mechanical properties on polypropylene composites

Cited by 127 publications

References 33 publications

An nMgO containing scaffold: Antibacterial activity, degradation properties and cell responses

An nMgO containing scaffold: Antibacterial activity, degradation properties and cell responses

Characterization of green composites from biobased epoxy matrices and bio-fillers derived from seashell wastes

Sea coral-derived cuttlebone reinforced epoxy composites: Characterization and tensile properties evaluation with mathematical models

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