Measurement of dielectric properties of polymer matrix composites developed from cow bone powder

Omah, A. D.; Okorie, B. A.; Omah, E. C.; Ezema, I. C.; Aigbodion, V.S.; Offor, P. O.

doi:10.1007/s00170-016-8759-1

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…It can be observed that there is variation in composition of the elements as the milling progresses. The elemental composition varied along with the milling time from 0-60 min and this was also in agreement with the work carried out Omah et al [1].…”

Section: Image Segmentation and Thresholdingsupporting

confidence: 91%

“…Cow bone as organic bio-waste materials have been developed into different particles sizes from macro, micro as well as to nanoparticles. The development of microparticles from cow bones was carried out by first carbonized the cow bones at 750°C using heat treatable furnace in the absence of oxygen and sieved using different mesh sizes of 150, 300 and 600 µm and these were then applied to polymer as reinforcement to form polymatrix composites [1] and it has also been used as reinforcement nanoparticle during friction stir welding of metal composites [2], in this study, cow bone was milling for 1 h and then carbonized at a temperature of 500°C inside muffle furnace for 2 h and allowed for thermal stability inside the furnace to room temperature. It is a known fact that cow bones are waste products and making the environment unconducive to live in with the unbearable pollutants.…”

Section: Introductionmentioning

confidence: 99%

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Preparation, Characterization, Image Segmentation and Particle Size Analysis of Cow Bone Powder for Composite Applications

Ikumapayi

Akinlabi

Adedeji

et al. 2020

Lecture Notes in Mechanical Engineering

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Cow bone is a bio-waste material that has caused environmental unfriendliness to the people living around the place of production and deposition. In recent time, researchers have exploited various means of utilizing this bio-waste material and make it environmentally friendly and economically utilizable, especially in the area of applications, such as activated carbon, water purification, reinforcement in composites, filler and additives, and its efficacy has been traced to whether is in the form of macro-, micro-and nanoparticles. In this study, cow bone head (skull) was collected, washed and cleaned from meats, processed, sun-dried for six weeks, and it was then washed again with distilled water to remove impurities and contaminants, then placed inside the oven set at 50°C to dry for 5 h to remove any trace of moisture content and to ensure absolute dryness. It was then milled into nanoparticle powder using vibratory disk milling machine and the milling times were 0 min which was taken to be 150 µm size, 20, 40 and 60 min. The morphological and physiological characterizations were carried out using scanning electron microscopy (SEM), energy dispersive X-ray (EDX) as well as X-ray fluorescence (XRF). MATLAB (R2015a) was employed for image processing into bimodal with foreground and background pixels using thresholding segmentation method. SEM images were taken at 1.00 ×, 2.00 × and 5.00 × which resulted to 50 µm, 20 µm and 10 µm, respectively. The image segmentation was employed to determine the foreground from a background of cow bone powder (CBP) and to enhance high resolutions, visual perception as well as to achieve better quality of the final output.

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Section: Image Segmentation and Thresholdingsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization, Image Segmentation and Particle Size Analysis of Cow Bone Powder for Composite Applications

Ikumapayi

Akinlabi

Adedeji

et al. 2020

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

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“…Inorganic dielectrics, as a rule, have a higher dielectric constant and low manufacturability 2 . In this regard, at present, preference is given to relatively cheap polymer dielectrics with a lower dielectric constant, high mechanical properties, and manufacturability 3–16 . Polyimides, 15,17–20 polybenzoxazole, 21 polyarylene ethers, 14,22–25 polytetrafluoroethylene, 26,27 polyethylene, 28 polyurethanes 29–32 are widely used as dielectrics.…”

Section: Introductionmentioning

confidence: 99%

“…2 In this regard, at present, preference is given to relatively cheap polymer dielectrics with a lower dielectric constant, high mechanical properties, and manufacturability. [3][4][5][6][7][8][9][10][11][12][13][14][15][16] Polyimides, 15,[17][18][19][20] polybenzoxazole, 21 polyarylene ethers, 14,[22][23][24][25] polytetrafluoroethylene, 26,27 polyethylene, 28 polyurethanes [29][30][31][32] are widely used as dielectrics. Research is underway to improve the complex of properties of polymer dielectrics by means of their chemical modification, 38 the introduction of fillers of various natures into their composition.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of organophosphorus polyurethane ionomers

Davletbaeva

Sazonov

Nikitina

et al. 2021

J of Applied Polymer Sci

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The dielectric and physical‐mechanical properties of organophosphorus polyurethane ionomers based on the ethers and aminoethers of ortho‐phosphoric acid have been investigated. The influence of the content of ionogenic groups and polyphosphate structures on the dielectric properties of polyurethanes has been analyzed. It is shown that the values of dielectric permittivity and tangent of dielectric loss in a wide frequency range increase with the content of ionogenic groups in polyurethanes studied. In this case, the increase in conductivity is diffusive in nature and is due to the mobility of protons within the phosphate anion clusters. The compositions of samples with a combination of high dielectric properties and excellent physical‐mechanical and adhesion characteristics have been determined. These are samples in which polyphosphate structures are present in addition to phosphate anions.

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“…Literatürde karbonize edilmiş (kül) ve edilmemiş (partikül) formlarda kemik tozunun takviye malzemesi olarak kullanıldığı çeşitli çalışmalar mevcuttur [14][15][16][17]. Asuke ve ark.…”

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Kemik Külü ve Uyumlaştırıcının PP/PA6 Matrisli Kompozitlerin Mekanik Özellikleri Üzerine Etkisi

Savaş¹,

UZUNOĞLU²,

Savaş³

2022

International Journal of Innovative Engineering Applications

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Original scientific paperIn this study, the effects of bone ash and maleic anhydride grafted polypropylene (MAPP) additives used in polypropylene (PP)/polyamide 6 (PA6) blends on the mechanical and tribological properties of the composites were investigated. Bone powder is a waste material especially in food industry. The use of bone powder in polymer matrix composites is important because of the reduction of petroleumbased content in the composites and its biodegradable characteristic. The composites were produced using a twin-screw extruder by melt blending method and then molded to sample sizes to be used in mechanical and tribological tests by injection molding. Tensile test, threepoint bending test, Shore D hardness test and ball-on-disc sliding wear tests were carried out on the composites and the results were compared with respect to the composite composition. When the results were examined, it was found that the bone ash additive was more effective on the hardness and the compatibilizer additive was more effective on the tensile and bending strength. The highest hardness values were achieved with 20% and 30% bone ash additives. It has been found that bone ash is also very effective in reducing the friction coefficients, especially when used with compatibilizer it reduces the wear rates significantly (up to 98%). In summary, PP/PA6 matrix composites obtained with the synergistic effect of bone ash and MAPP are promising for applications requiring mechanical and wear resistance.

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Measurement of dielectric properties of polymer matrix composites developed from cow bone powder

Cited by 9 publications

References 4 publications

Preparation, Characterization, Image Segmentation and Particle Size Analysis of Cow Bone Powder for Composite Applications

Preparation, Characterization, Image Segmentation and Particle Size Analysis of Cow Bone Powder for Composite Applications

Dielectric properties of organophosphorus polyurethane ionomers

Kemik Külü ve Uyumlaştırıcının PP/PA6 Matrisli Kompozitlerin Mekanik Özellikleri Üzerine Etkisi

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