NOPR Collection:http://nopr.niscpr.res.in/handle/123456789/633132026-10-09T18:46:45Z2026-10-09T18:46:45ZEffect of coconut shell powder filler on performance of polyester composites for ballistic applicationMaheswaran, GMurugan, RMajumdar, Abhijithttp://nopr.niscpr.res.in/handle/123456789/633282024-02-15T08:59:17Z2023-12-01T00:00:00ZTitle: Effect of coconut shell powder filler on performance of polyester composites for ballistic application
Authors: Maheswaran, G; Murugan, R; Majumdar, Abhijit
Abstract: This work reports the use of coconut shell powder filler with polyester resin for the development of Nylon 6.6 fabric reinforced composite panels. The impact resistance of the prepared composites against 0.22 caliber projectile has been studied at four different weight proportions (10%, 20%, 30% and 40%) of coconut shell powder filler. With an increase in filler proportion, the depth created on the clay backing after ballistic impact is found to decrease from 7.62 cm to 4.60 cm in the 25 m range and from 7.62 cm to 2.39 cm in the 30 m range. Consequently, the area involved in impact energy absorption is also found to increase from 0.44 cm2 to 2.27 cm2 in the 25 m range and from 1.86 cm2 to 4.9 cm2 in the 30 m range. The increase in the area due to the absorption of impact energy ensures effective distribution of the impact energy over the panels. Coconut shell powder filler added with resin has a significant effect in improving the impact resistance of the composite panels due to the changes in the inter-yarn frictional force of the reinforced fabrics. Further, the impact test results are based on the findings of tensile strength test and Rockwell hardness test. There is an increase in tensile strength by 25% and hardness by 41.6% as compared to the control sample.
Page(s): 367-3722023-12-01T00:00:00ZA feasibility study on use of banana fabrics in footwear production as upper materialMurali, Rajesh ChengamchettyKumaresan, AmbikaGunasekaran, BharathkumarAaron, Kavati PhebeKaliappa, Krishnarajhttp://nopr.niscpr.res.in/handle/123456789/633272024-02-15T08:48:19Z2023-12-01T00:00:00ZTitle: A feasibility study on use of banana fabrics in footwear production as upper material
Authors: Murali, Rajesh Chengamchetty; Kumaresan, Ambika; Gunasekaran, Bharathkumar; Aaron, Kavati Phebe; Kaliappa, Krishnaraj
Abstract: The purpose of this research is to evaluate the physical, comfort, structural and thermal properties of banana fabrics for their suitable use with cow nubuck and goat nubuck leather in footwear applications. It is observed that all these fabrics have mechanical properties comparable to those of cow nubuck and goat nubuck leather. The tensile strength of the banana fabric is sufficiently higher than that of cow nubuck and goat nubuck leather. Cow nubuck leather, on the other hand, outperforms all other fabrics in terms of percentage elongation. Scanning electron microscopic examination gives solid proof of the banana fabrics’ distinctive fibre pattern in each fibre bundle (yarn) as well as their composition. The banana fabric has greater thermal stability than cow nubuck leather. The results of this investigation indicate that the chosen banana fabrics can be used to create footwear.
Page(s): 373-3792023-12-01T00:00:00ZComparative analysis of residual pressure drop behavior between electrostatically assisted flat based and pilot pulse jet filter unit using conductive filter mediaDutta, SudevMukhopadhyay, ArunangshuChoudhary, A KReddy, C Chttp://nopr.niscpr.res.in/handle/123456789/633262024-02-15T08:44:44Z2023-12-01T00:00:00ZTitle: Comparative analysis of residual pressure drop behavior between electrostatically assisted flat based and pilot pulse jet filter unit using conductive filter media
Authors: Dutta, Sudev; Mukhopadhyay, Arunangshu; Choudhary, A K; Reddy, C C
Abstract: The present study aims at comparing the pressure drop behavior of three different needle-punched polyester conductive
materials, viz. PTFE coated media, stainless steel fibre blended with PET media and stainless steel fibre scrim media. This
comparison is done on a laboratory-based electrostatically assisted pulse-jet flat media test rig with the pilot filter unit,
which is closer to the industrial set-up. The materials are investigated using fly ash aerosol, pre-charged at three different
levels of charge, viz. 4 kV, 8 kV and 12 kV. The interpretations reveal that the flat media test rig is observed to exhibit
lower residual pressure drop for all the investigated materials.
Page(s): 380-3872023-12-01T00:00:00ZDevelopment of fabrics for adsorbing carbon dioxide and other pollutants from indoor airBasu, ArindamKumar, PankajParmar, MSGaur, RKhttp://nopr.niscpr.res.in/handle/123456789/633252024-02-15T08:42:20Z2023-12-01T00:00:00ZTitle: Development of fabrics for adsorbing carbon dioxide and other pollutants from indoor air
Authors: Basu, Arindam; Kumar, Pankaj; Parmar, MS; Gaur, RK
Abstract: An attempt has been made to develop cotton-treated fabrics to be used as home textile and decorative products inside the
room, which can adsorb carbon dioxide and thus reduce indoor air pollution. Cotton fabric has been treated with bentonite
clay, aerosol fumed silica and zeolite separately, and then evaluated for adsorption of CO2 gas using newly developed
NITRA fabric gas adsorption efficiency testing equipment. It is found that the fabric treated with a 4% concentration of
bentonite clay, 3% concentration of aerosol fumed silica, and 2% concentration of zeolite adsorbs 23.62%, 28.04%, and
21.35% of CO2 respectively in 24 h. Treated samples are also tested for various physical properties like breaking strength,
flexural rigidity, etc.
Page(s): 388-3952023-12-01T00:00:00Z