http://dspace.dtu.ac.in:8080/jspui/handle/123456789/11 2026-04-28T04:03:52Z 2026-04-28T04:03:52Z DWIVEDI, MAYANK ALAM, SARFARAZ VERMA, G.L. http://dspace.dtu.ac.in:8080/jspui/handle/repository/17492 2020-02-21T10:31:46Z 2006-02-01T00:00:00Z

Title: INTERRELATION OF SCANNING ELECTRON MICROGRAPHS WITH FLEXURAL BEHAVIOR OF FERRITE AND NANO-BARIUM TITANATE REINFORCED POLY-ETHER-ETHER-KETONE(PEEK) COMPOSITES Authors: DWIVEDI, MAYANK; ALAM, SARFARAZ; VERMA, G.L. Abstract: The flexural behavior of ferrite filled poly-ether-ether-ketone (PEEK) composites, with and without reinforcement of nano-barium titanate, was studied and was corroborated through scanning electron microscopy (SEM). In this study, ferrite filled PEEK, and ferrite and nano-barium titanate reinforced PEEK composites were prepared. Ferrite filled PEEK composites showed refuction in flexural strength and increase in flexural modulus with the increase in ferrite content, whereas, with the reinforcement of nano-barium titanate, flexural strength increased and flexural modulus decreased at similar ferrite content.

2006-02-01T00:00:00Z GUPTA, A.P. KUMAR, VIMAL http://dspace.dtu.ac.in:8080/jspui/handle/repository/17491 2020-02-21T10:31:35Z 2007-07-01T00:00:00Z

Title: NEW EMERGING TRENDS IN SYNTHETIC BIODEGRADABLE POLYMERS –POLYLACTIDE : A CRITIQUE Authors: GUPTA, A.P.; KUMAR, VIMAL Abstract: Polylactide (PLA), the biodegradable synthetic aliphatic polyester, has been studied extensively for a number of applications. With potential applications PLA represents its prospective utility in a number of growing technologies such as orthopedics, drug delivery, sutures, and scaffolds, and have further enhanced the interest of researchers in this novel area. Renewable resource generated monomers possess better mechanical properties and easy processability by conventional methods like thermoforming, injection, and blow molding with non-toxic degradation products, which have made it superior than the other conventional thermoplastics. In order to meet the different performance requirements, PLA can be synthesised by various methods using different catalysts. In this review a collection of more than 100 catalysts for the synthesis of PLA are mentioned, apart from this, efforts have been made to present an updated review on the various aspects of polylactide. 2007 Elsevier Lt...

2007-07-01T00:00:00Z GUPTA, A.P. VERMA, G. L. AGARWAL, HIMANSHU http://dspace.dtu.ac.in:8080/jspui/handle/repository/17490 2020-02-21T10:31:26Z 2003-08-01T00:00:00Z

Title: POLY(VINYL CHLORIDE ) MEMBRANE CONTAINING ZIRCONIUM (IV) SELENOMOLYBDATE INORGANIC ON EXCHANGER AS DYSPROSIUM (III)- ION SELECTIVE ELECTRODE Authors: GUPTA, A.P.; VERMA, G. L.; AGARWAL, HIMANSHU

2003-08-01T00:00:00Z NAKASHIMA, TAKAHARU KUMAR, DEVENDRA TAKASHIMA, WATARU ZAMA, TETSUJI HARA, SUSUMU SEWA, SHINGO KEIICH, KANETO http://dspace.dtu.ac.in:8080/jspui/handle/repository/17489 2020-02-21T10:31:13Z 2004-07-01T00:00:00Z

Title: ENHANCED ELECTROCHEMICAL STRAIN IN POLYPYRROL FILMS Authors: NAKASHIMA, TAKAHARU; KUMAR, DEVENDRA; TAKASHIMA, WATARU; ZAMA, TETSUJI; HARA, SUSUMU; SEWA, SHINGO; KEIICH, KANETO

2004-07-01T00:00:00Z