Version-1 (Mar. – Apr. 2018)
- Citation
- Abstract
- Reference
- Full PDF
Abstract: According to the literature Juniper (Juníperus commúnis) as possible implant material has proved biocompatibility with the animal muscle tissue and morphology of its trunk is similar to the morphology of bone, namely the presence of cross-perforations in the juniper allows capillaries to grow through, so usual rejection of the implantable material does not occur. This study shows developed synthetic polypropylene fibers as biomimetics (repeating structure) of juniper fiber and investigation of its mechanical properties. Morphology of Juniper was studied by field emission scanning electron microscope; cross-perforation of fibers was carried out with a focused laser beam pulses with a diameter of 5-10 μm synchronously scanning the fiber in the longitudinal direction and perforating............
[1]. Hänninen T, Kontturi E, Leppanen K, Serimaa R, Vuorinen T. Kraft pulping of Juniperus communis results in paper with
unusually high elasticity. BioResources, 2011; 6(4): 3824-35.
[2]. Gross K.A, Ezerietis E.J. Juniper wood as a possible implant material. Biomed Mater Res A. 2003; 64(4): 672-83.
[3]. Hänninen T,"Studies on the ultra structure of natural fibres and its effects on the fibre utilization", School of Chemical Technology,
Department of Forest Products Technology, Aalto University, 116/2011 pp.24-28.
[4]. Efremov E.A., Zikova I.D., Efremov A.A., Strukova E.G. Component composition of the essential oil of the paw and Siberian
Evenkia cones-berries of the juniper. Chemistry of vegetable raw materials. 2011;2:127–31.
[5]. Lantto TA, Colucci M, Zavadova V, Hiltunen R, Raasmaja A. Cytotoxicity of curcumin, resveratrol and plant extracts from basil,
juniper, laurel and parsley in SH-SY5Y and CV1-P cells. Food Chem. 2009;117(3):405–11.
- Citation
- Abstract
- Reference
- Full PDF
Abstract: Reactive dyes contain different types of reactive groups which have different levels of sensitivity. Reactive dyeing is carried out by exhaust method on cotton knit fabric. A trichromatic combination is chosen containing vinyl sulphone and mono-chlorotriazine / vinyl sulphone reactive groups. Dyeing of fabric is carried out with standard condition and variation of the conditions (electrolyte concentration, pH, exhaustion time, fixation time and M:L). Colorimetric data (DE*) is produced by comparing the difference between standard shade and the resulting shades by using spectrophotometer. Here sensitivity is quantitatively expressed as color difference. Between the investigated reactive groups of reactive dye VS reactive group is more sensitive than MCT/VS reactive group of reactive dye.
[1]. Roderick McDonald (Editor), 1997, Color Physics for Industry, SDC, Bradford. England, p. 292-372.
[2]. Mansoor Iqbal, Zeeshen Khatri, Aleem Ahmed, Javaid Mughal, Kamran Ahmed, 2012, "Prediction of low-sensitivity reactive dye recipe in exhaust dyeing influenced by material to liquor ratio and nature of salt", Journal of Soudi Chemical Society, January, 16, 1, p.1-6.
[3]. John Shore (editor), Cellulosic Dyeing, Society of Dyers and Colorists 1995; 189-245.
[4]. Klaus Hunger (editor), Industrial Dyes, Chemistry, Properties, Application, WILEY-VCH, 2003, p. 113-118.
[5]. Clariant, Technical data sheet, 2002.
- Citation
- Abstract
- Reference
- Full PDF
Abstract:The paper presents the specific design process of narrow fabrics with elastomeric yarns, which production needs jacquard weaving machine. Some particularities, related with the use of elastomeric threads in the warp are discussed. The design of an elastic band is shown as an example of the application of a narrow jacquard weaving machine and its design software.
Keywords : narrow fabrics; elastomeric threads; design; woven textiles
[1] J. Hu and J. Lu, "Recent developments in elastic fibres and yarns for sportswear," Textiles for Sportswear, Woodhead Publishing, 2015
.[2] P. Verdu, J. M. Rego, J. Nieto, and M. Blanes, "Comfort Analysis of Woven Cotton/Polyester Fabrics Modified with a New Elastic Fiber, Part 1 Preliminary Analysis of Comfort and Mechanical Properties", Textile Research Journal, vol. 79, no. 1, p. 14-23, 2009.
[3] J. M. Rego, P. Verdu, J. Nieto, and M. Blanes, Comfort Analysis of Woven Cotton/Polyester Fabrics Modified with a New Elastic Fiber, Part 2: Detailed Study of Mechanical, Thermo-Physiological and Skin Sensorial Properties", Textile Research Journal, vol. 80, no. 3, p. 206-215, 2010.
[4] B. Childers, "Medical textile", Legwear Trends and Fashions, 2005.
[5] R. Mashaly and S. Hussein, "Evaluation of the performance of elastic band used for ready made garment manufacturing", Alexandria Engineering Journal, vol. 50, pp. 291-295, 2011.
- Citation
- Abstract
- Reference
- Full PDF
Abstract: RMG sector is the backbone of today's Bangladesh economy. Improvement in quality assurance system can play a vital role for improving productivity of the industries as well as economic development for the country. Improved quality assurance system can add strength in global competitiveness in the global textile market through improving quality as low quality means high cost and loss of competitive position. This paper shows a case study on quality assurance system of a selected garment factory by applying different statistical tools. ANOVA test and independent sample test are used for data analysis purposes. Through regression analysis on average DHU percent, it is found that the quality assurance system of the industry is in a better position and implementation of TQM philosophy thoroughly is recommended for further development.
Keywords : Quality, Quality assurance, Statistical tools, TQM, DHU.
[1] Working Today to Shine Tomorrow, BKMEA magazine published by iART, Page-04, (2014).
[2] Ahmed, M., & Ahmad, N. (2011). An application of Pareto analysis and cause-and-effect diagram (CED) for minimizing rejection of raw materials in lamp production process. Management Science and Engineering, 5(3), 87-95.
[3] Shafiq, M. (2012). Implementation of quality management systems and business excellence frameworks in Pakistani textile companies. Journal of Quality and Technology Management, 7(2), 11-23.
[4] Saluja, Mohit, "Importance of Quality in Today's Textile", www.fibre2fashion.com
[5] Hasin, Akhtar, Dr. M.Ahsan, Quality Control and Management; Bangladesh Business Solution; Page No 3 ;( 2007).
- Citation
- Abstract
- Reference
- Full PDF
Abstract: Jute fabrics modified by Indosol E-50 with or without reactive dye in the presence and absence of salt and soda ash were considered to incorporate into polypropylene for composite fabrication. Conventional sodium hydroxide (NaOH) was also used for chemical modification of jute fabrics. Besides, untreated jute fabrics were treated with reactive dye by normal dyeing method to observe the nature of modification. The effects of treated jute fabrics on mechanical properties, Scanning Electron Microscopy (SEM), thermal behavior (TG/DTA), and water absorption properties of their resulting composites were evaluated. The composites of treated jute fabrics with Indosol E-50 plus Drimarene Red K8b had shown............
Keywords : Polymer composites, Chemical modification, Mechanical properties, Thermal behavior.
[1] Adekomaya, Jamiru T, Sadiku R, et al. A review on the sustainability of natural fiber in matrix reinforcement – A practical perspective.Journal of Reinforced Plastics and Composites. 2016; 35: 3-7.
[2] Wei-ming W, Zai-sheng C, Jian-yong Y. Study on the chemical modification process of jute fiber. Journal of Engineered Fibers and Fabrics. 2008; 3(2): 1-11.
[3] Wang X, Cui Y, Qi X, et al. Effects of Alkali and Silane Treatment on the Mechanical Properties of Jute-Fiber-Reinforced Recycled Polypropylene Composites. Journal of Vinyl and Additive Technology. 2010; 16(3): 183-188.
[4] Juganta KR, Ruhul AK, Hossain KMZ, et al. Effect of Sodium Bicarbonate on the Mechanical and Degradation Properties of Short Jute Fiber Reinforced Polypropylene Composite by Extrusion Technique. International Journal of Polymeric Materials. 2012; 61: 571–586.
[5] Cyras VP, Vallo C, Henry JM, et al. Effect of chemical treatment on the mechanical properties of starch-based blends reinforced with sisal fiber. J. Compos. Mater. 2004; 38 (16): 1387–1399.
- Citation
- Abstract
- Reference
- Full PDF
Paper Type | : | Research Paper |
Title | : | Study of Shielding Properties for NBR Rubber /Nano Silica Composites Against Gamma Radiation |
Country | : | Egypt |
Authors | : | Elham M. Hegazi |
: | 10.9790/019X-05023741 |
Abstract: This study aimed to investigate the influence of adding Nanosilica (NS) to Nitrile Butadiene Rubber (NBR) as shielding materials for gamma radiations at minimal cost. Rubber silica nanocomposites were prepared by mixing nitrile rubber with surface modified and unmodified nanosilica. The Linear attenuation coefficient was measured experimentally and calculated for NBR rubber with different concentration of nano silica. It is concluded that the addition of nanosilica particles improves the mechanical and nuclear properties of NBR rubber. The increase of modified nanosilica particles increases the total γ-ray attenuation coefficient μ for all energies..
Keywords : NBR, NS, Mechanical properties, gamma shielding.
[1]. O. Gurler, U. A. Tarim, Determination of Radiation Shielding Properties of Some Polymer and Plastic Materials against Gamma-Rays, Acta Physica Polonica A., Vol. 130 (2016).
[2]. Akkurt, I., Akyıldırım, H., Mavi, B., Kilincarslan, S., Basyigit, C. (2010). Photon attenuation coefficients of concrete includes barite in different rate. Annals of Nuclear Energy, 37, 910-914.
[3]. El-Khayatt, A. M. (2010). Radiation shielding of concretes containing different lime/silica ratios. Annals of Nuclear Energy, 37, 991-995.
[4]. El-Khayatt, A. M., & Akkurt, I. (2013). Photon interaction, energy absorption and neutron removal cross section of concrete including marble. Annals of Nuclear Energy, 60, 8-14.
[5]. Elmahroug, Y., Tellili, B., & Souga, C. (2013). Calculation of gamma and neutron shielding parameters for some materialspolyethylene-based. International Journal of Physics and Research, 3, 33-40.