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M. B. Kulkarni

Bio: M. B. Kulkarni is an academic researcher from Maharashtra Institute of Technology. The author has contributed to research in topics: Fly ash & Melt flow index. The author has an hindex of 4, co-authored 8 publications receiving 59 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the effect of particle size (150 mesh, 100 mesh, and 300 mesh) variations in fly ash cenospheres, as a filler with different concentrations (0 − 40 ¼ ) on various properties of acrylonitrile butadiene styrene was investigated.
Abstract: Fly ash cenospheres are inexpensive, readily available from coal burning or heavy oil combustion, not an eco-friendly material. If ways can be found to use this, it will serve the twin purposes of facilitating applications for the ash bearing materials and at the same time reduce pollution. One way to achieve this task is to make ash-bearing composites having polymer matrices. The performance of filled polymers is generally determined on the basis of the interface attraction of filler and polymers. Fillers of widely varying particle size and surface characteristics are responsive to the interfacial interactions with the polymers. The present study deals with the effect of particle size (150 mesh, 100 mesh, and 300 mesh) variations in fly ash cenospheres, as a filler with different concentrations (0–40 wt%), on various properties of acrylonitrile butadiene styrene. The mechanical, thermal, and electrical properties of the composite material were evaluated, and the microstructure was investigated through sc...

26 citations

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TL;DR: In this paper, the effect of variation in melt flow index (MFI) of maleic anhydride-grafted polypropylene (PP-g-MAH) as a polymeric compatibilizing agent on various properties of fly ash was investigated.
Abstract: Present study deals with the effect of variation in melt flow index (MFI) of maleic anhydride–grafted polypropylene (PP-g-MAH) as a polymeric compatibilizing agent on various properties of fly ash ...

17 citations

Journal ArticleDOI
TL;DR: In this article, the effect of treatment of 0.5, 1.5 and 2.5% titanate-coupling agent (LICA 38) on various properties of fly ash-filled polypropylene (PP) composites was studied.
Abstract: The present article studies the effect of treatment of 0.5, 1.5, and 2.5% titanate-coupling agent (LICA 38) on various properties of fly ash–filled polypropylene (PP) composites. The fly ash content varied from 0 to 30 wt%. The mechanical and thermal properties of the composite material were evaluated, and microstructure investigated through scanning electron microscopy. Experimental results were compared with various existing models. Experimental data for tensile yield strength showed good fit to the existing models. Adhesion parameter or interfacial interaction was also evaluated though Pukanszky model. The values of yield stress and breaking strength of treated fly ash–based composites showed higher values compared to that of untreated fly ash–filled PP composites at corresponding filler content. The overall mechanical properties of fly ash–filled composites are essentially decided by wettability of the filler. It is also found that Vicat softening point improved with the addition of fly ash filler. Mo...

10 citations

Journal ArticleDOI
11 Jul 2018
TL;DR: In this article, the thermal and tensile properties of polybenzoxazine/epoxy-fumed silica filled composites have been investigated by using tensile and flexural tests.
Abstract: Polybenzoxazine/epoxy-fumed silica filled composites have been prepared by blending benzoxazine with epoxy (EP) in presence of fumed silica (FS). It has been observed that the thermal stability of the composites increased with increasing amount of fumed silica in the composite composition. Mechanical properties of the composites have been investigated by using tensile and flexural tests. Composites consist of 4 wt% fumed silica in the polymeric matrices, exhibited higher tensile and flexural strength than neat polybenzoxazine, epoxy and their polymeric metrics blend. Prepared composites possess better mechanical and thermal properties than the neat polymers, as well as easy processibilty which can make them good candidates to prepare of complex reinforced structures for various industrial applications.

1 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors present the recent developments and applications of composite materials made from recycled mixed plastics and glass fibre and identify research needs critical in the effective design and utilisation of these composite materials in civil engineering and construction.

71 citations

Journal ArticleDOI
TL;DR: A plethora of research works have been done on banana and plantain fibers as fillers in plastic composites as discussed by the authors, and a comprehensive catalogues of preparation techniques and mechanical properties were presented.
Abstract: Abstract Natural fiber-reinforced polymer composites have been widely explored by many researchers due to their improved modulus and lightness compared to other conventional construction materials such as wood, metal, and steel. Cultivators only harvest banana and plantain fruits for food and leaves for food wrapping. The other portions of the plant are considered as wastes and a potential resource of natural fibers used as reinforcement in composites. Over the years, a plethora of research works has been done on banana and plantain fibers as fillers in plastic composites. Comprehensive catalogues of preparation techniques and mechanical properties were presented. The mechanical properties of banana fiber reinforcement in polyester and epoxy composites were compared to and contrasted with those of other natural fibers to elucidate its superiority or inferiority to those materials. This work gives an overview of the current state of knowledge of banana fiber-reinforced composites alongside the available research gaps.

53 citations

Journal ArticleDOI
TL;DR: Titanate coupling agents (TCAs) exhibit satisfactory interfacial bonding, enhanced homogeneous filler dispersion, and improved mechanical properties of the composites, which should be considered in fabricating dental composites.
Abstract: Silane is a dominant coupler that is widely used in dentistry to promote adhesion among the components of dental composites. Silica-based fillers can be easily silanized because of their similarly ordered structure. However, silane is hydrolytically degraded in the aqueous oral environment and inefficiently bonds to non-silica fillers. Thus, the development of hydrolytically stable dental composites is an important objective in the research on dental materials. Titanate coupling agents (TCAs) exhibit satisfactory interfacial bonding, enhanced homogeneous filler dispersion, and improved mechanical properties of the composites. Titanates also provide superior hydrolytic stability in wet environments, which should be considered in fabricating dental composites. The addition of a small amount of titanates can improve the resistance of the composites to moisture. This paper reviews the effects of the instability of silanes in moisture on the performance of dental composites and presents TCAs as alternative couplers to silanes for fabricating dental composites.

39 citations

Journal ArticleDOI
TL;DR: Minimising the porosity level could have the potential to reduce fungus growth on denture base resin to be hygienically accepTable Such enhancements obtained with Ti-NBT could lead to promotion of the composites' longevity.

37 citations

Journal ArticleDOI
TL;DR: In this paper, the authors reviewed the recent advances in treatment strategies for natural fibers before their utilization in a reinforced composite in the last 5 years and more focus was placed on e...
Abstract: The aim of this paper was to review the recent advances in treatment strategies for natural fibers before their utilization in a reinforced composite in the last 5 years. More focus was placed on e...

28 citations