Rendering polypropylene biocomposites antibacterial through modification with oyster shell powder

Tsou, Chi‐Hui; Wu, Chin-San; Hung, Wei‐Song; Guzman, Manuel Reyes De; Gao, Chen; Wang, Ruo-Yao; Chen, Jian; Wan, Neng; Peng, Yujun; Suen, Maw‐Cherng

doi:10.1016/j.polymer.2018.11.048

Cited by 68 publications

(48 citation statements)

References 58 publications

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“…The inclusion of inorganic substances in PU can endow PU with various functions [25,26]. For example, the blending of PU and Ag produced an antibacterial material [27]; the use of oyster shell powder as a nucleating agent in PU imbued PU with the antibacterial properties of the oyster shell powder, producing a biomedical material [28]; and the addition of carbon material to PU produced a conductive material [29]. Carbon black (CB) is a natural product produced when hydrocarbon substances are burned in insufficient air.…”

Section: Introductionmentioning

confidence: 99%

Synthetic Environmentally Friendly Castor Oil Based-Polyurethane with Carbon Black as a Microphase Separation Promoter

Tsen

Tsou

et al. 2019

Polymers

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This study created water polyurethane (WPU) prepolymer by using isophorone diisocyanate, castor oil, dimethylolpropionic acid, and triethanolamine (TEA) as the hard segment, soft segment, hydrophilic group, and neutralizer, respectively. TEA, deionized water, and carbon black (CB) were added to the prepolymer under high-speed rotation to create an environmentally friendly vegetable-oil-based polyurethane. CB served as the fortifier and promoter of microphase separation. Fourier transform infrared spectroscopy was performed to elucidate the role of H-bond interactions within the CB/WPUs. Additionally, atomic force microscopy was conducted to determine the influence of H-bond interactions on the degree of microphase separation in the WPU. Furthermore, this study used four-point probe observation to discover the materials’ conductivity of CB in the WPU. Thermogravimetric analysis and dynamic mechanical analysis were performed to measure the thermal properties of the CB/WPUs. The mechanical properties of CB/WPUs were measured using a tensile testing machine. The CB/WPUs were also soaked in 1 wt.% NaOH solution for different amounts of time to determine the degradation properties of the CB/WPUs. Finally, scanning electron microscopy was performed to observe the topography of the CB/WPUs after degradation.

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Section: Introductionmentioning

confidence: 99%

Synthetic Environmentally Friendly Castor Oil Based-Polyurethane with Carbon Black as a Microphase Separation Promoter

Tsen

Tsou

et al. 2019

Polymers

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“…This calcination process under thermal treatment with adding minerals admixtures. From this calcination process cement clinkers are generated up to 1200 -1500⁰C [16,29]. The reaction is calcium carbonate + silica (heat) → calcium silicate (clinker) + carbon dioxide:…”

Section: Ordinary Portland Cementmentioning

confidence: 99%

“…In the development of cement hydration, the calcium silicate hydrate C-S-H and calcium hydroxide Ca (OH)₂ is released due to the two components of cement that is Tricalcium silicate (C₃S) and Dicalcium silicate (C₂S) [42]. In this SiO₂ and CaO denotes the C and S. The cement reaction occurs mainly [16,29].…”

Section: Reaction Mechanism -Pozzolanic Reactionmentioning

confidence: 99%

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A Review on Utilizing the Marine Biorefinery Waste in Construction Raw Materials to Reduce Land Pollution and Enhance Green Environment

Ravi

Balasubramanian

Jeyakumar

et al. 2021

Advances in Materials Science

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This research mainly concentrates on eco-friendly construction material. Production of cement and concrete industries release huge amount of carbon dioxide (CO2) and greenhouse gases which affect the environment and also there is a demand in construction material by man-made or nature. The construction sector finds an economic and eco-friendly cement replacement material to achieve the demand for green concrete that improve the energy conservation and better energy saving material. In marine Bio-refinery waste produce huge quantity of calcium carbonate, whose disposal is cause of major concern. Pre-eminent solution for this problem is utilizing the marine shell waste in cement and concrete. It revises the manufacturing process to reduce the raw material usage in production and adoptable material for global warming. Therefore, the researchers focus on marine waste sea shells as the replacement material in construction industry to save the energy and also give sustainable green material. As per the previous studies by the researchers to determine the chemical composition, specific gravity, water absorption, particle size distribution of seashells and also compressive, flexural and tensile strength of concrete. It shows the seashell is filler material that slightly increases the strength when compared to the conventional materials and therefore the sea shells are suitable for the construction field to manufacture the cement and concrete with eco-friendly manner.

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“…Attempts have been made to exploit the potential of oyster shells in various applications. For example, oyster shells have been treated to serve as heavy metal absorber, 3 raw material for bone tissue engineering, 4 and biocidal agent 5 …”

Section: Introductionmentioning

confidence: 99%

Effects of calcination temperature on morphological and crystallographic properties of oyster shell as biocidal agent

Park

Sadeghi

Thanakkasaranee

et al. 2020

Int J Applied Ceramic Tech

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To develop biocompatible antimicrobial agent, oyster shell wastes were thermally calcined at different temperatures ranging from 300 to 1000 °C. The chemical compositions and properties of oyster shells were characterized. As such, crystallographic analysis presented that oyster shells had a hexagonal crystalline shape, and calcination process reduced their crystalline size, volume (grain dimension), and bond length, which strongly affected antimicrobial efficacy. Results showed that the main components of uncalcined and calcined oyster shells were CaCO3 and CaO, by which CaO was found to be the main antimicrobial component. Notably, calcined oyster shells showed antimicrobial potency against both Gram‐negative (Escherichia coli) and Gram‐positive (Staphylococcus aureus). Furthermore, cytotoxicity analysis proved that calcined oyster shells had good cell viability and low cytotoxicity. Results highlighted that calcined oyster shells, particularly those treated at 750°C, could be a biocompatible alternative to synthetic biocidal and antimicrobial agents using in food packaging, biomedical, and cosmetic industries.

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Rendering polypropylene biocomposites antibacterial through modification with oyster shell powder

Cited by 68 publications

References 58 publications

Synthetic Environmentally Friendly Castor Oil Based-Polyurethane with Carbon Black as a Microphase Separation Promoter

Synthetic Environmentally Friendly Castor Oil Based-Polyurethane with Carbon Black as a Microphase Separation Promoter

A Review on Utilizing the Marine Biorefinery Waste in Construction Raw Materials to Reduce Land Pollution and Enhance Green Environment

Effects of calcination temperature on morphological and crystallographic properties of oyster shell as biocidal agent

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