Waste Eggshell-Derived Calcium Oxide and Nanohydroxyapatite Biomaterials for the Preparation of LLDPE Polymer Nanocomposite and Their Thermomechanical Study

Jirimali, Harishchandra D.; Chaudhari, Bhushan C.; Khanderay, Jitendra C.; Joshi, Sachin A.; Singh, Vijay; Patil, Amardip M.; Gite, Vikas V.

doi:10.1080/03602559.2017.1354221

Cited by 38 publications

(20 citation statements)

References 29 publications

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“…60 nm size CaO nanoparticles (0%, 5%, 10%, and 15%) for the treatment of osteomyelitis and bone tissue engineering. Although consistent, antibacterial activity against S. aureus was not observed using these nanoparticles, and the presence of CaO nanoparticles in the polymer enhanced the cell viability [ 26 ] length with the addition of a filler [ 27 ]. The influence of the antimicrobial properties was not studied.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

et al. 2020

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Low-density polyethylene composites containing different sizes of calcium oxide (CaO) nanoparticles were obtained by melt mixing. The CaO nanoparticles were synthesized by either the sol-gel or sonication methods, obtaining two different sizes: ca. 55 nm and 25 nm. These nanoparticles were used either as-synthesized or were modified organically on the surface with oleic acid (Mod-CaO), at concentrations of 3, 5, and 10 wt% in the polymer. The Mod-CaO nanoparticles of 25 nm can act as nucleating agents, increasing the polymer’s crystallinity. The Young’s Modulus increased with the Mod-CaO nanoparticles, rendering higher reinforcement effects with an increase as high as 36%. The reduction in Escherichia coli bacteria in the nanocomposites increased with the amount of CaO nanoparticles, the size reduction, and the surface modification. The highest antimicrobial behavior was found in the composites with a Mod-CaO of 25 nm, presenting a reduction of 99.99%. This strong antimicrobial effect can be associated with the release of the Ca2+ from the composites, as studied for the composite with 10 wt% nanoparticles. The ion release was dependent on the size of the nanoparticles and their surface modification. These findings show that CaO nanoparticles are an excellent alternative as an antimicrobial filler in polymer nanocomposites to be applied for food packaging or medical devices.

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Section: Introductionmentioning

confidence: 99%

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

et al. 2020

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“…Ukuran tersebut terkait dengan besarnya penyerapan kalsium oleh tubuh, biasanya hanya 50% sehingga sering menyebabkan defisiensi (Aminingsih et al, 2018;Zufadhillah et al, 2018;Ranjan et al, 2019). Teknologi pembentukan ukuran kalsium yang lebih kecil telah dikembangkan untuk memperbesar penyerapan kalsium dalam tubuh (Jirimali et al, 2018;Mosaddegh and Hassankhani, 2014;Ferraz et al, 2018;Rivera et al, 1999). Sintesis nanopartikel lebih banyak menarik perhatian karena kinerja yang lebih baik disebabkan terjadi peningkatan luas permukaan dan daya absorbsi.…”

Section: Pendahuluanunclassified

“…Cangkang telur termasuk limbah pangan yang selama ini masih belum banyak dimanfaatkan. Kandungan dari cangkang telur adalah 90% kalsium (Warsy et al, 2016;Nurlaela et al, 2014;Jirimali et al, 2018;Habte et al, 2019;Mosaddegh and Hassankhani, 2014;El-Shibiny et al, 2018;Tizo et al, 2018). Hal ini mengindikasikan cangkang telur bisa menjadi salah satu sumber kalsium yang potensial.…”

Section: Pendahuluanunclassified

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Sintesis dan Karakterisasi Nanokalsium Oksida dari Cangkang Telur

Sunardi

Krismawati

Mahayana³

2020

ALCHEMY J.Pen.Kim

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Pencegahan osteoporosis dilakukan dengan mengkonsumsi kalsium. Pada umumnya kalsium yang dikonsumsi dalam bentuk mikro kalsium. Ukuran mikro kalsium hanya diserap tubuh sekitar 50%, sehingga sering menyebabkan defisiensi. Sehingga, teknologi untuk membuat ukuran nanokalsium telah dikembangkan agar penyerapan kalsium dalam tubuh lebih besar. Penelitian ini bertujuan untuk mensintesis nanokalsium dari cangkang telur yang merupakan limbah industri roti. Sintesis nanokalsium oksida dari cangkang telur dengan metode presipitasi. Sintesis dilakukan dengan mereaksikan cangkang telur yang telah bersih dan kering dengan HCl 2 N. Hasil reaksi dipisahkan dengan penyaringan sehingga diperoleh filtrat. Filtrat yang diperoleh direaksikan dengan NaOH sampai pengendapan tidak terbentuk lagi. Endapan yang diperoleh kemudian dipisahkan, dioven, dan dibakar dalam tanur pada suhu 600 °C selama 1 jam. Serbuk hasil sintesis dikarakterisasi menggunakan SEM-EDX, XRD dan FTIR. Hasil penelitian menunjukkan bahwa cangkang telur dapat disintesis menjadi nanokalsium oksida berupa kristal berwarna putih. Karakterisasi menggunakan SEM-EDX diperoleh hasil bahwa nanokalsium oksida dari cangkang telur berbentuk speris, teraglomerasi dengan ukuran partikel 12,41582 ± 0,13961 nm, mengandung unsur yaitu O (55,83%), C (33,24%), dan Ca (10,94%). Karakterisasi dengan XRD menunjukkan bahwa ukuran kristal nanokalsium oksida diperoleh hasil sebesar 10,46 nm. Karakterisasi dengan FTIR diperoleh puncak pada bilangan gelombang 1477,54 cm-1, 1053,15 cm-1, 8863,68 cm-1 dan ikatan Ca-O pada bilangan gelombang 512 cm-1.Synthesis and Characterization of Nano-Calcium Oxide from Eggshells. Consumption of calcium can prevent osteoporosis. Usually, calcium is consumed in the form of micro calcium. The micro size calcium is only absorbed by the body at around 50%, causing calcium deficiency. Therefore, technology to produce nano-size calcium has been developed to increase the amount of adsorption. This study aims to synthesize nano calcium from eggshells as a solid waste of bread industries. The synthesis was conducted by precipitation method. The synthesis was carried out by reacting clean and dry eggshells with HCl 2 N, and then followed by filtering to obtain the filtrate. The filtrate obtained was reacted with NaOH until the calcium was precipitated. The precipitate obtained was then separated, roasted, and burned in a furnace at 600 °C for 1 hour. The synthesized powders were characterized using SEM-EDX, XRD, and FTIR. The results showed that eggshells could be synthesized into nano-calcium oxide in the form of white crystals. Characterization using SEM-EDX showed that nano-calcium oxide from spherical eggshells, agglomerated with the particle size of 12.41582 ± 0.13961 nm, with elemental content of O (55.83%), C (33.24%), and Ca (10.94%). Characterization with XRD shows that the size of nano calcium oxide crystals was 10.46 nm. Characterization with FTIR shows peak at wavenumbers 1477.54 cm-1, 1053.15 cm-1, 8863.68 cm-1, and the Ca-O bond reveals at 512 cm-1.

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“…Pure calcium oxide and nanohydroxyapatite have been produced from waste eggshell to prepare polymer composite. The polymer composite was reported to have exhibited improved thermal and mechanical properties [21]. Meanwhile, there is no much available information on the dielectric and high-voltage insulation behaviour of eggshell powder-filled polymeric insulation.…”

Section: Introductionmentioning

confidence: 99%

Investigating the mechanical and insulation performance of waste eggshell powder/epoxy polymer for power insulation application

2019

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In an effort towards the optimization of materials for industrial application, composite technology has been identified to provide an effective way to improve the performance of insulating materials used in power system applications. Clay and synthesized metal oxide micro-and nanoparticles have been used as fillers in host polymer materials. In this study, the focus is on the development of composite polymeric insulation using particles from animal shell waste for use in electrical and electronic power systems. Epoxy composite samples were prepared with waste chicken eggshell powder and titanium oxide (TiO 2) nanoparticles, respectively. Mechanical (tensile strength) and dielectric properties were studied, and high-voltage AC was used to evaluate the variation in electrical conductance with percentage composition of the filler particles in the epoxy polymer matrix. This was done by monitoring the leakage current through the epoxy polymer composites under high-voltage stresses in the range of 0.5-5 kV. The two polymer composites' type has comparable loss tangent, but the eggshell powder-filled polymer samples displayed higher dielectric constant and lower electrical conductance at high voltage compared with the TiO 2 nanoparticle-filled polymer composite samples. While the minimum conductance of 2.68 × 10 −9 S was obtained from the epoxy composite sample with 3 wt% eggshell particle loading, epoxy nanocomposite displayed a minimum conductance of 4.06 × 10 −9 S with 2 wt% titanium oxide loading. This is an indication that polymer composite with the eggshell particles may produce polymeric insulation that could be more resistant to leakage current.

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Waste Eggshell-Derived Calcium Oxide and Nanohydroxyapatite Biomaterials for the Preparation of LLDPE Polymer Nanocomposite and Their Thermomechanical Study

Cited by 38 publications

References 29 publications

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

Mechanical and Antimicrobial Polyethylene Composites with CaO Nanoparticles

Sintesis dan Karakterisasi Nanokalsium Oksida dari Cangkang Telur

Investigating the mechanical and insulation performance of waste eggshell powder/epoxy polymer for power insulation application

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