KAMESHWARI DEVI S.H.

1. K.R.Prakash ,B.M.Satish, P.K.Jain and S.H.Kameshwari Devi,” Need for optimization of graphite partical reinforcement in ZA-27 Alloy Composites for Tribological Applications” Material science and engineering A530, 2011;82-388.
2. S.H.Kameshwari Devi and G.M.Shashidhara “Studies on PP/SBS Blends with and without Nanoclay” Indian Journal of Engineering and Material Sciences, 2011; 18: 69-79. ISSN: 0975- 1017 (Online)
3. S.H.Kameshwari Devi, G.M.Shashidhara and A.K.Ghosh “Characterization of HDPE/MMT based Nanocomposites ” Composite interfaces 17(2010), 217-222.
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RESEARCH INTERESTS

Biopolymers and biodegradable polymer development
Recycling of single use polymers into value added products

Scopus Publications

Mechanical and Morphological Analysis of 3D-Printed Polylactic Acid-Polybutylene Adipate Terephthalate Composite
Suchetha N. Raju, S.H. Kameshwari Devi, K.P. Ajeya, K. Prashantha
Journal of Research Updates in Polymer Science, 2026
In this research paper, a detailed examination of the mechanical properties and morphologies of PLA and PBAT polymer blend materials which were produced through 3D printing techniques was conducted. The examination was completed using a PLA/PBAT/Joncryl blended material with a composition ratio of 77/20/3 wt% and manufactured through FDM techniques and an experimental design technique known as the Taguchi method to evaluate the effects of various manufacturing parameters on the mechanical characteristics of the material. This study investigates the mechanical and morphological performance of FDM-printed PLA/PBAT/Joncryl blend specimens using a Taguchi L9 design. A PLA/PBAT/Joncryl blend (77/20/3 wt%) was fabricated and printed by varying layer height (0.16–0.24 mm), printing temperature (190–210 °C), and infill density (50–100%). The optimal condition (0.16 mm, 210 °C, 100% infill) produced a maximum tensile strength of 41.20 N/mm² and elongation of 12.42%. ANOVA results confirmed infill density as the most significant parameter contributing 81.35% of the variance (P = 0.009). SEM revealed reduced voids and improved interlayer fusion at higher infill levels, while DMA showed higher storage modulus (~2200 MPa) for 100% infill specimens. The findings provide a process–structure–property relationship for optimizing biodegradable PLA/PBAT components for high-strength applications. This study illustrates that the infill % is the primary parameter that should be adjusted, while the layer height and printing temperature contribute but to a lesser extent to the improved performance of biodegradable PLA/PBAT/Joncryl blends.
Mechanical, Thermal, and Morphological Analysis of 3D-Printed Polylactic Acid–Polyester Urethane Blends with Varied Infill and Material Compositions
Suchetha N. Raju, Suchetha N. Raju, S.H. Kameshwari Devi, K.P. Ajeya, K. Prashantha
Journal of Research Updates in Polymer Science, 2025
Multimaterial 3D printing allows for the production of intricate parts with customized mechanical properties, enhancing the versatility of material extrusion additive manufacturing. Typically, 3D printing machines are fed with commercially available filament feedstock, which limits the 3D printing of multiple materials. Hence, this study introduces in-house prepared filaments for creating polymer blend structures with improved properties. In this study, polylactic acid and thermoplastic poly ester urethane (PEU) blends with different composition ratios were processed by varying the infill densities to evaluate their impacts on their thermal, mechanical and morphological properties. The effects of infill percentage on the mechanical, thermal and morphological behaviour were investigated. The results indicate that increasing the infill percentage tends to significantly increase the elastic modulus and tensile strength. The maximum strain increased as the infill percentage increased. Overall, the mechanical results indicated that, without sacrificing any tensile strength, the composite with 25% PEU exhibited better toughness than did the neat PLA and could be printed similarly to that of PLA. Furthermore, scanning electron images revealed that the blends had a homogeneous structure with a fibrillar morphology. These results indicate that 3D printing is an effective technique for creating next generation 4D materials.
An Investigation on the Properties of PLA/TPU Polymeric Blend System as a 3D Printable Material
16th International Conference on Advances in Computing Control and Telecommunication Technologies Act 2025, 2025
Effect of compositions and compatibilizer on the viscoelastic behavior of polycarbonate/acrylonitrile butadiene styrene blends
S. H. Kameshwari Devi, Siddaramaiah
Aip Conference Proceedings, 2021
The effects of blend compositions of polycarbonate (PC) and acrylonitrile butadiene styrene (ABS) with and without compatibilizers namely styrene maleic anhydride (SMA), a reactive compatibilizer and Elvaloy is a non-reactive co-polymer of ethylene and butyl acrylate (containing 25 wt % methacrylate) on the properties have been studied. The PC/ABS blends with varying amounts viz., 40, 50 and 60 wt% of ABS have been melt mixed with or without 5 wt% of SMA using Polylab twin screw extruder. The viscoelastic behavior of PC/ABS blends have been determined using dynamic mechanical analyzer (DMA). From DMA studies, it was observed that the storage modulus of compatibilized PC40S and PC50S are higher than those of the corresponding uncompatibilized blends at the same temperature. The storage moduli of PC50, PC50E and PC50S at 50 °C were 1076, 1276 and 1461 MPa respectively, indicating an increase in the extent of miscibility aided by SMA than Elvaloy for PC/ABS system. Further, the shift in Tg and peak broadening reveals partial miscibility. The experimental results were compared with the results predicted by Kerner model. It is evident that the peak corresponding to the transition in PC tends to broaden with a weak ABS peak in PC60S blend. It was observed that there was a good agreement between experimental data of E′ as well as E″ with data predicted by model in the transition region. It was observed that for PC/ABS (50/50) blend, the storage and loss modulus values predicted is higher than the experimental values. The same blend composition with SMA shows the values of the model is under predicted than the actual experimental values. The Tg of neat ABS was 114 °C and Tg of ABS in the blends were gradually decreased from 120 to 117 °C.
The effect of styrene maleic anhydride compatibilizer on the performance of polycarbonate/acrylonitrile butadiene styrene blends
S.H. Kameshwari Devi, Siddaramaiah Hatna
Materials Today Proceedings, 2021
Studies on PP/SBS blends with and without nanoclay
Indian Journal of Engineering and Materials Sciences, 2011
Characterization of HDPE/MMT-based nanocomposites
S. H. Kameshwari Devi, G. M. Shashidhara, A. K. Ghosh
Composite Interfaces, 2010
A series of HDPE/MMT nanocomposites with different proportions of compatibilizers, PE-g-MAH (AC573A and 5TP409/E) were prepared in a counter rotating twin screw extruder. The effect of nanoclay loading, compatibilizer type and amount was examined. The work was carried out using a specific grade of HDPE recommended for blow-moulding applications and modification of the same by blending with selected polymer and nanofiller to achieve the desired properties. The composition containing higher percentage of nanoclay showed improvement in mechanical properties. About 17% in tensile modulus and about 20% increase in flexural modulus were observed with high-viscous compatibilizer. The dispersion behaviour of nanoclay in PE matrix was studied using X-ray diffraction and transmission electron microscopy. It was clear from WXRD that in all nanocomposite samples, the peaks were shifted to lower 2 values implying that the d-spacing increases and that intercalation occurred. Low molecular weight compatibilizer PE-g-MA resulted in better intercalation than high molecular weight compatibilizer. It was observed that in the case of 5% AC573A loading, there was slight decrease in d-spacing value which indicated that some exfoliation also occurred in nanocomposite. Nanocomposite containing PE-g-MAH is higher concentration gives better dispersion than at low concentration. TEM results show that PE-g-MAH (AC573A) at 5% loading is more efficient as compatibilizer (not many aggregates seen) than other compositions.

RECENT SCHOLAR PUBLICATIONS

Effect of compositions and compatibilizer on the viscoelastic behavior of polycarbonate/acrylonitrile butadiene styrene blends
SHK Devi, Siddaramaiah
AIP Conference Proceedings 2316 (1), 060001 , 2021
2021
The effect of styrene maleic anhydride compatibilizer on the performance of polycarbonate/acrylonitrile butadiene styrene blends
SHK Devi, S Hatna
Materials Today: Proceedings 46, 2510-2514 , 2021
2021
Citations: 14
Effect of Thermoplastic Polyurethane content on properties of PC/TPU blend filled with Montmorillonite
SHKDSDK G. M. Shashidhara
Journal Carbon – Science & Technology, 5 (1), 218 – 224 , 2013
2013
Citations: 5
Isothermal crystallization behavior of PP and PP-g-GMA copolymer at high undercooling
KDSHPS ShashidharaG.M.
The Journal of the Russian Academy of Sciences. Polymer Science Series A … , 2013
2013
Citations: 13
Studies on PP/SBS blends with and without nanoclay
GM Shashidhara, SHK Devi
Indian Journal of Engineering & Materials Sciences 18 (1), 69-78 , 2011
2011
Citations: 12
Need for optimization of graphite partical reinforcement in ZA-27 Alloy Composites for Tribological Applications”
PKJSHKD K.R.Prakash ,B.M.Satish
Material science and engineering 530, 382-388 , 2011
2011
Citations: 43
Characterization of HDPE/MMT-based nanocomposites
SHK Devi, GM Shashidhara, AK Ghosh
Composite interfaces 17 (2-3), 217-222 , 2010
2010
Citations: 11

MOST CITED SCHOLAR PUBLICATIONS

Need for optimization of graphite partical reinforcement in ZA-27 Alloy Composites for Tribological Applications”
PKJSHKD K.R.Prakash ,B.M.Satish
Material science and engineering 530, 382-388 , 2011
2011
Citations: 43
The effect of styrene maleic anhydride compatibilizer on the performance of polycarbonate/acrylonitrile butadiene styrene blends
SHK Devi, S Hatna
Materials Today: Proceedings 46, 2510-2514 , 2021
2021
Citations: 14
Isothermal crystallization behavior of PP and PP-g-GMA copolymer at high undercooling
KDSHPS ShashidharaG.M.
The Journal of the Russian Academy of Sciences. Polymer Science Series A … , 2013
2013
Citations: 13
Studies on PP/SBS blends with and without nanoclay
GM Shashidhara, SHK Devi
Indian Journal of Engineering & Materials Sciences 18 (1), 69-78 , 2011
2011
Citations: 12
Characterization of HDPE/MMT-based nanocomposites
SHK Devi, GM Shashidhara, AK Ghosh
Composite interfaces 17 (2-3), 217-222 , 2010
2010
Citations: 11
Effect of Thermoplastic Polyurethane content on properties of PC/TPU blend filled with Montmorillonite
SHKDSDK G. M. Shashidhara
Journal Carbon – Science & Technology, 5 (1), 218 – 224 , 2013
2013
Citations: 5
Effect of compositions and compatibilizer on the viscoelastic behavior of polycarbonate/acrylonitrile butadiene styrene blends
SHK Devi, Siddaramaiah
AIP Conference Proceedings 2316 (1), 060001 , 2021
2021

Publications

1. Rajashekara Rakshitha, Bannimath Gurupadayya, · Sake Haridass Kameshwari Devi and Nagaraju Pallavi Coprecipitation aided synthesis of bimetallic silver tungstate:a response surface simulation of sunlight‐driven photocatalytic removal of 2,4‐dichlorophenol,, Environmental Science and Pollution Research, 2022

2. S. H. Kameshwari Devi and Siddaramaiah, “Effect of compositions and compatibilizer on the viscoelastic behavior of polycarbonate/ acrylonitrile butadiene styrene blends” AIP Conference Proceedings, 2021; 2316; 1: Published Online: 16 February 2021

3. S.H.Kameshwari Devi and Siddaramaiah The effect of styrene maleic anhydride compatibilizer on the performance of polycarbonate/acrylonitrile butadiene styrene blends” Materials Today Proceedings,2021: 46: 2510-2514
4. G. M. Shashidhara ,S. H. Kameshwari Devi and Shreyas D. Effect of Thermoplastic Polyurethane content on properties of PC/TPU blend filled with Montmorillonite K. Journal Carbon – Science & Technology, 2013; 5/1 : 218 – 224. ISSN0974-0546 (Online).
5. Shashidhara G.M., KameshawariDevi S.H. and PreethiS. “Isothermal crystallization behavior of PP and PP-g-GMA copolymer at high undercooling” The Journal of the Russian Academy of Sciences. Polymer Science Series A, Polymer Physics, 2013; 55, (6): 669–679. DOI 10.1134/S096554

GRANT DETAILS

• Preparation and characterization of biodegradable active food packaging film based on PLA/PCL and turmeric essential oil extracted from biowaste. for KSCST, Bangalore.
• Conversion Of Municipal Plastic Waste With Incorporation Of Wood Waste From Carpentry Works Into Value Added Product For Domestic Applications (2020-21) for KSCST, Bangalore.
• Design and fabrication of instrumented dart impact tester (1998-99) for KSCST, Bangalore.
• Studies on used ground tire blended polymers for domestic applications (2001-02)
for KSCST, Bangalore,

Industry, Institute, or Organisation Collaboration

Projects related to Biopolymers and Recycling of plastic waste with industrial collaboration
1. Preparation and characterization of biopolymeric films
2. Study on effect of recycling on properties of PP/Starch blends
3. Mechanical Recycling of thermoformed containers
5. Preparation And Characterization of blends of recycled Polypropylene and rPP/rPET industrial Waste
6. Design, development and performance evaluation of Bio-degradable Polyolefin material