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Nonwoven Functional Materials Lab

The Nonwoven Functional Materials Lab focuses on developing different nonwoven functional materials and characterizing of nonwoven materials.

Current Research

  • The current research projects include:
  • Cotton-based nonwovens and composites
  • Stretchable cotton nonwovens
  • Biodegradable/Compostable Meltbown Nonwovens for Filter media and other Applications
  • Investigation of the Composition, Structure and Performance Characteristics of Flushable Nonwovens
  • LightWeight Ballistic Materials with Improved Performance
  • Processing and Characterization of Carbon Fibers from Alternative Precursors

Patents

  1. R. Vempati and G. S. Bhat, “Nanophase Mn (VII) oxide (NM7O) and Nanophase Mn (III) Oxide (NM3O) Incorporated Nonwovens,” US Patent 8 163 036, Issued April 21, 2012.
  2. G. S. Bhat, V. Narayanan and L. C. Wadsworth, “Dimensionally Stable Polyester Films, Fibers, Yarns and Melt Blown Nonwovens,” U. S. Patent 5 753 736 (issued May 19, 1998).
  3. K. E. Duckett, G. S. Bhat and Hagen Suh, “Compostable/Biodegradable Nonwovens,” U. S. Patent 5 783 505 (issued July 21, 1998).

Publications

    1. M. C. Evora, X. Lu, N. Hiremath, N. G. Kang, K. Hong, R. Uribe, G. Bhat and J. Mays, "Single-step process to improve the mechanical properties of carbon nanotube yarn." Beilstein Journal of Nanotechnology (2018) 9 (1), 545-554.
    2. N. Hiremath, M. C. Evora, A. K. Naskar, J. Mays, and G. Bhat, "Polyacrylonitrile nanocomposite fibers from acrylonitrile-grafted carbon nanofibers," Composites Part B: Engineering, (2017) 130, 64-69. https://doi.org/10.1016/j.compositesb.2017.07.031.
    3. G. Bhat, V. Kandagor, D. Prather and R. Bhave "Structure and Properties of Melt Blown Polyetherimide as High Temperature Filter Media," International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering (2017) 7, 11, 437-441.
    4. B. Yu, M. Wang, H. Sun, F. Zhu, J. Han and G. Bhat, "Preparation and Properties of Poly (lactic acid)/magnetic Fe3O4 Composites and Nonwovens," The Royal Society of Chemistry (2017) 7, 41929-41936. DOI: 10.1039/C7RA06427F
    5. X. Lu, N. Hiremath, K. Hong, M. C. Evora, V. H. Ranson, A. Naskar, G. S. Bhat, N. G. Kang and J. Mays, "Improving Mechanical Properties of Carbon Nanotube Fibers Through Simultaneous Solid-state Cycloaddition and Crosslinking," Nanotechnology, 28 (2017) DOI:10.1088/1361-6528/aa6223
    6. V Kandagor, D Prather, J Fogle, R Bhave, and G Bhat, "Processing, Structure and Properties of Melt Blown Polyetherimide, Journal of Textile Science and Engineering, (2017) 7 (2) 1-6.
    7. H. Sun, A. Xiao, B. Yu, G. Bhat and F. Zhao, "Effect of PLC and Compatibilizer on the Tensile and Barrier Properties of PLA/PCL Films," Polymer (Korea) (2017) 41, #2, 181-188. DOI:10.7317/pk.2017.41.2.181
    8. N. Hiremath, X. Lu, M. C. Evora, A. Naskar4, J. Mays and G. Bhat, "Effect of Solvent/Polymer Infiltration and Irradiation on Microstructure and Tensile Properties of Carbon Nanotube Yarns" Journal of Materials Science, (2016). DOI: 10.1007/s10853-016-0249-1
    9. Y. Yesil and G. Bhat, "Porosity and Barrier Properties of Polyethylene Melt Blown Nonwovens," Journal of Textile Institute, 108:6, 1035-1040, (2016). http://dx.doi.org/:10.1080/00405000.2016.1218109
    10. B. Yu, Z. Xuyang, K. Jinjin, Z. Feichao, G. Bhat, S. Hui and W. Peng, "Influence of Die-to-Collector Distance on Structure and Property of the PLA Meltblown Web," Rare Metal materials and Engineering, 45, 345-349 (2016).
    11. Y. Yesil and G. Bhat, "Structure and Mechanical Properties of Polyethylene Melt Blown Nonwovens," International Journal of Clothing Science and Technology, 28 (6), 780-793 (2016). http://dx.doi.org/10.1108/IJCST-09-2015-0099
    12. N. Hiremath, G, Bhat and J. Mays, "A Review of Carbon Nanotube Based Fibers and Yarns," Polymer Review, 57 (2) 339-368 (2016). http://dx.doi.org/10.1080/15583724.2016.1169546
    13. G. Bhat, "Advances in Polymeric Nanofiber Manufacturing Technologies," Journal of Nanomaterials and Molecular Nanotechnology, (2016). DOI: 10.4172/2324-8777.1000e108
    14. W. Han, X. Wang and G. S. Bhat, "Investigation of the Nanofiber Breakup in the Melt Blowing Process," Industrial and Engineering Chemistry Research, 55(11) 3150-3156 (2016). DOI:10.1021/acs.iecr.5b04472
    15. Y. Yesil and G. Bhat, "Porosity and Barrier Properties of Polyethylene Melt Blown Nonwovens," Journal of Textile Institute, (2016). DOI: 10.1080/00405000.2016.1218109
    16. W. Han, X. Wang and G. S. Bhat, "Investigation of the Nanofiber Breakup in the Melt Blowing Process," Industrial and Engineering Chemistry Research, (2016) DOI:10.1021/acs.iecr.5b04472
    17. N. Hiremath and G. Bhat, "Melt blown Polymeric Nanofibers for Medical Applications-An Overview" Nanosci Technol 2(1): pp 1-9 (2015).
    18. G. Bhat, "Meltblown Submicron Fibers for Filter Media and other Applications," International Fiber Journal, 29 (2), 20-23, (2015).
    19. G. Bhat, "Polymeric Nanofibers: Recent Technology Advancements Stimulating their Growth," Journal of Textile Science and Engineering, 5:185 (2015) doi: 10.4172/2165-8064.1000186
    20. V. Srivastava, R. Quinlan, A. Agapov, A. Kisliuk, G. Bhat, and J. Mays, "High-Yield Synthesis of Macroscale Conductive and Dispersible Carbon Nanostructures via Ultrasonication of Commercial Precursors" Industrial & Engineering Chemistry Research, 53 (23), pp 9781–9791 (2014) DOI: 10.1021/ie501659n
    21. V. Srivatsava, R. Quinlan, A. L. Agapov, K. M. Nelson, A. Sokolov, G. Bhat and J. Mays, "Macroscopic Properties of Restacked, Redox-Liquid Exfoliated Graphite and Graphite Mimics Produced in Bulk Quantities" Advanced Functional Materials, (2014) DOI: 10.1002/adfm.201400484.
    22. R. Hegde, J. E. Spruill and G. S. Bhat, "Investigation of the Morphology of Polypropylene-Nanoclay Nanocomposites," Polymer International, 63, 1112-1121 (2014)
    23. M. Lalagiri, G. Bhat, V. Singh, S. Parameswaran, R. J. Kendall and S. Ramkumar, "Filtration Efficiency of Submicron Filters," Industrial & Engineering Chemistry Research 52 (46), 16513-16518 (2013).
    24. P. Gulgunje, G. Bhat and J. E. Spruiell, "Influence of Molecular Orientation on the Melting Behavior of Poly (phenylene sulfide) Fibers," Journal of Engineered Fibers and Fabrics, 8(3), 83-88 (2013).
    25. R. R. Hegde, G. S. Bhat, J. E. Spruiell, and R Benson, "Structure and Properties of Polypropylene Nanoclay Composites," Journal of Polymer Research 20 (12), 1-13 (2013).
    26. W. Han, X. Wang and G. S. Bhat, "Structure and Air Permeability of Melt Blown Nanofiber Webs," Journal of Nanomaterials and Molecular Nanotechnology, 2:3 (2013). doi:http://dx.doi.org/10.4172/2324-8777.1000115
    27. R. Hegde, G. S. Bhat and B. Deshpande, "Crystallization kinetics and morphology of melt spun Poly (ethylene terephthalate) nanocomposite fibers," Express Polymer Letters, 7, 821-831(2013).
    28. R. Uppal, G. Bhat, C. Eash, and K. Akato, "Meltblown Nanofiber Media for Enhanced Quality Factor," Polymers and Fibers, Vol. 14 (4), 660-668 (2013).
    29. T. Lin, D. Luckas and G. S. Bhat, "Nanofiber Manufacture, Properties and Applications," Journal of Nanomaterials, vol. 2013, Article ID 368191 (2013).
    30. D. V. Parikh, B. Ingber, S. Nam, G. S. Bhat, M. Warnock and L. Harington, "Flame Retardant Cotton Barrier Nonwovens for Mattresses," Journal of Fire Science, Vol. 31(3), 276-290 (2013).
    31. G. S. Bhat and R. Nanjundappa, "Bond Structure and Tensile Properties of Thermal Bonded Polypropylene Nonwovens," Textiles and Light Industrial Science and Technology, Vol.2 (2) 49-53 (2013).
    32. R. Hegde, B. Deshpande and G. S. Bhat, "Morphology and Properties of Nylon 6 Blown Films Reinforced with Different weight percentage of Nanoclay additives." International Journal of Polymer Science 2012, Article ID 959035, 14 pages (2012).
    33. P. Gulgunje, G. Bhat and J. E. Spruiell, " Structure and properties enhancement in poly (phenylene sulfide) melt spun fibers-Part III: Effect of two zone drawing and annealing," Journal of Applied Polymer Science, 125, #3, 1693-1700 (2012).
    34. P. Gulgunje, G. Bhat and J. E. Spruiell, "Structure and Properties Development in Poly(phenylene sulfide) Fibers- Part II: Effect of One Zone Draw-annealing," Journal of Applied Polymer Science, 125, #3, 1890-1900 (2012).
    35. R. Hegde, J. E. Spruill and G. S. Bhat, "Different Crystallization Mechanisms in Polypropylene-Nanoclay Concentrates," Journal of Materials Research, 27, #10, 1360-1371 (2012).
    36. R. Uppal, G. Bhat, K. Akato, D. V. Parikh, S. Nam and B. Condon, "Antibacterial High Loft Cotton Nonwovens," Journal of Industrial Textiles, 41, #4, 281-291 (2012).
    37. P. Gulgunje, G. Bhat and J. E. Spruiell, "Structure and Property Development in Melt Spun PPS Fibers: Effect of Material and Melt Spinning Process Variables," Journal of Applied Polymer Science, 122, #5, 3110-3121 (2011).
    38. R. Hegde and G. S. Bhat, "Structure and Properties of Nanoclay Reinforced Polypropylene Spunbond Webs," Journal of Applied Polymer Science, 118, 3141-3155 (2010).
    39. R. Hegde and G. S. Bhat, "Nanoparticle Effects on Structure and Properties of Polypropylene Meltblown Webs," Journal of Applied Polymer Science, 115 (2), 1062-1072 (2010).
    40. G. S. Bhat and R. Uppal, "Melt Blown Nonwovens for Medical Applications," Polymer Society, 2(2) 26-29 (2009).
    41. R. Hegde, G. S. Bhat, and R. A. Campbell, "Properties and Performance of Bicomponent Fibers in Thermal Bonding," Nonwovens and Technical Textiles, 2, 33-39 (2009).
    42. M. G. Kamath, G. S. Bhat, D. V. Parikh and B. D. Condon, "Processing and Characterization of Flame Retardant Cotton Blend Nonwovens for Soft Furnishings to Meet Federal Flammability Standards," Journal of Industrial Textiles, 38(3), 251-262 (2009).
    43. G. S. Bhat, R. Hegde, M. G. Kamath and B. Deshpande, "Nanoclay Reinforced Fibers and Nonwovens," Journal of Engineered Fibers and Fabrics, 3(3), 22-34 (2008).
    44. R. R. Hegde, G. S. Bhat and R. A. Campbell, "Thermal Bonding of Polypropylene Films and Fibers," Journal of Applied Polymer Science, 110 (5), 3047-3058 (2008).
    45. G. S. Bhat and R. Kotra, "Development of Structure and Properties during Spunbonding of Metallocene Catalyzed Polypropylene," Polymer Plastics Technology and Engineering, 47(5), 542-549 (2008).
    46. G. S. Bhat, P. Gulgunje, and K. Desai, "Developments of Structure and Properties during Thermal Calendering of Polylactic Acid (PLA) Fiber Webs," eXPRESS Polymer Letters, 2(1), 49-56 (2008).
    47. G. S. Bhat and D. V. Parikh, "Cotton in Nonwovens," TAPPI Technical Information Paper, TAPPI, TIP#1205-02 (2008).
    48. G. Bhat, R. Hegde, P. Gulgunje and R. K. Vempati, "Nonwoven Fabrics with Enhanced Performance and Functionality Using Nanotechnology," Nonwoven and Technical Textiles, 1, P23-P28 (2007).
    49. D. V. Parikh, N. D. Sachinvala, Y. Chen, L. Sun, G. Bhat, and S. Ramkumar, "Acoustic Properties of Environmentally Benign Automotive Natural Fiber Composites," AATCC Review, 6(1), 43-48 (2006).
    50. Kamath, M. G., G. S. Bhat, D. Mueller, and D. V. Parikh. "Biodegradable/compostable composites from lingo-cellulosic fibers for automotive applications." SAE Transactions 114, no. 1 (2005): 1119-1129.
    51. R. Nanjundappa and G. S. Bhat, "Effect of Processing Conditions on the Structure and Properties of Polypropylene Spunbond Fabrics," Journal of Applied Polymer Science 98(6), 2355-2364 (2005).
    52. M. G. Kamath, G. S. Bhat, D. V. Parikh, and D. Mueller, "Cotton Fiber Nonwovens for Automotive Composites," International Nonwovens Journal, 13, 34-40 (2005).
    53. Subbiah, T., G. S. Bhat, R. W. Tock, S. Parameswaran, and S. S. Ramkumar, "Electrospinning of Nanofibers," Journal of Applied Polymer Science, 96(2), 557-569 (2005).
    54. H. Rong, R. V. Leon, and G. S. Bhat, "Statistical Analysis of the Effect of Processing Conditions on the Strength of Thermal Point-bonded Cotton-based Nonwovens," Textile Research Journal, 75(1), 35-38 (2005).
    55. G. S. Bhat, P. K. Jangala, and J. E. Spruiell, "Thermal bonding of Polypropylene Nonwovens: Effect of Bonding Variables on the Structure and Properties of the Fabrics," Journal of Applied Polymer Science, 92(6), 3593-3600 (2004).
    56. H. Rong and G. S. Bhat, "Binder Fiber Distribution and Tensile Properties of Thermally Point-bonded Cotton-based Nonwovens," Journal of Applied Polymer Science, 91(5), 3148-3155 (2004).
    57. Bhat, G. "Polymer laid nonwovens." Asian Textile Journal-Bombay- 13 (2004): 33-38.
    58. H. Rong and G. S. Bhat, "Preparation and Properties of Cotton-Eastar Nonwovens" International Nonwovens Journal, 53-57, Summer (2003).
    59. G. S. Bhat, S. Chand and J. E. Spruiell, "Role of Fiber Morphology in Thermal Bonding of PP," International Nonwovens Journal, 12-20, Fall (2002).
    60. G. S. Bhat, R. Nanjundappa, and R. Kotra, "Development of Structure and Properties during Spunbonding of Propylene Polymers," Thermochemica Acta, 392-393, 323-328 (2002).
    61. G. S. Bhat and S. R. Malkan, "Extruded Continuous Filament Nonwovens: Advances in Scientific Aspects," Journal of Applied Polymer Science, 83(3), 572-585 (2001).
    62. X. Gao, K. E. Duckett, G. S. Bhat, and H. Rong, "Effects of Water Treatment on Processing and Properties of Cotton/Cellulose Acetate Nonwovens," International Nonwovens Journal 10(2), 21-25 (2001).
    63. Duckett, K. E., G. S. Bhat, X. Gao, and H. Rong. "Advances in the thermal bonding of cotton/cellulose acetate nonwovens of untreated and aqueous pre-treated webs." Zeszyty Naukowe. Włókiennictwo/Politechnika Łódzka 11-16 (2000).
    64. S. Chand, G. Bhat, J. E. Spruiell, and S. Malkan "Structure and Properties of Polypropylene Fibers during Thermal Bonding," Thermochimica Acta, 367-368, 155-160 (2001).
    65. G. Bhat, S. Chand and S. Yakopson, "Thermal Properties of Elastic Fibers," Thermochimica Acta, 367-368, 161-164 (2001).
    66. G. S. Bhat, P. G. Wapner and W. P. Hoffman, "Processing of a High Temperature Imide Copolymer into Hollow Fibers," Materials and Manufacturing Processes, 15(4), 533-545 (2000).
    67. G. Bhat, V. Narayanan, L. Wadsworth, and M. Dever, "Conversion of Recycled Polymers/Fibers into Melt-Blown Nonwovens," Polymer-Plastics Technology and Engineering, 38(3), 499-511 (1999).
    68. D. Zhang, G. S. Bhat, S. Malkan, Q. Sun, and L. Wadsworth, "Development of Structure and Properties of Polypropylene Homopolymer and Copolymer Filaments during a Spunbonding Process," Journal of the Textile Institute, Part 1, 89(2) 289-303 (1998).
    69. D. Zhang, Q. Sun, G. Bhat, and L. Wadsworth, "Structure and Property Characterization of Spunbonded Filaments and Webs Using Thermal Analysis," Journal of Applied Polymer Science, 69(3), 421-434 (1998).
    70. D. Zhang, G. Bhat, S. Malkan, and L. Wadsworth, "Evolution of Structure and Properties in a Spunbonding Process," Textile Research Journal, 68(1), 27-35 (1998).
    71. G. S. Bhat and R. Schwanke "Thermal Properties of a Polyimide Fiber," Journal of Thermal Analysis, 49(1), 399-405 (1997).
    72. D. Zhang, G. Bhat, S. Malkan, and L. Wadsworth, "Structure and Properties of Polypropylene Filaments in a Spunbonding Process," Journal of Thermal Analysis, 49(1), 161-167 (1997).
    73. Zhang, D., G. Bhat, S. Malkan, and L. Wadsworth. "Effects of Spunbond Filament Properties on Resulting Web Structures." Nonwovens World 6 (1997): 65-72.
    74. H. Suh, K. Duckett, and G. Bhat, "Biodegradable and Tensile Properties of Cotton/Cellulose Acetate Nonwovens," Textile Research Journal, 66(4), 230-237 (1996).
    75. G. S. Bhat, "Future of Nonwoven Fabrics," Speculations in Science and Technology, 19, 149-155 (1996).
    76. G. S. Bhat, "Nonwovens as Three-Dimensional Textiles for Composites," Materials and Manufacturing Processes, 10(4), 667-688 (1995).
    77. G. S. Bhat, Y. Zhang, M. Dever, and L. C. Wadsworth, "Processing of Post-Consumer Recycled PET into Melt Blown Nonwoven Webs," International Nonwovens Journal, 6(3), 54-61 (1994).
    78. D. Zhang and G. S. Bhat, "Carbon Fibers from Polyethylene-Based Precursors," Materials and Manufacturing Processes, 9(2), 221-235 (1994).
    79. V. Narayanan, G. Bhat, L. Wadsworth, and D. Joy, "The Effect of Annealing on the Structure and Fracture Behavior of Melt Blown Polyester Webs," International Nonwovens Journal, 6(1) 42-46 (1994).
    80. D. Zhang and G. S. Bhat, "Thermal Characterization of Sulfonated Polyethylene Fibers," Thermochimica Acta, 226(6), 123-132 (1993).
    81. G. S. Bhat, L. H. Peebles, Jr., A. S. Abhiraman, and F. L. Cook, "Rapid Stabilization of Acrylic Fibers Using Ammonia: Effect on Structure and Morphology," Journal of Applied Polymer Science, 49(12), 2207-2219, (1993).
    82. G. Bhat, "Sonic Velocity of Melt-Blown Nonwoven Webs," INDA Journal of Nonwovens Research, 4(3) 26-28 (1992).
    83. G. S. Bhat, F. L. Cook, A. S. Abhiraman, and L. H. Peebles, Jr., "New Aspects in the Stabilization of Acrylic Fibers for Carbon Fibers," Carbon, 28(2-3), 377-385 (1990)

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Members

  • Gajanan Bhat

    Gajanan Bhat

    Georgia Athletic Association Professor of Fibers and Textiles and Department Head

    Learn More About Gajanan Bhat

  • Partha Sikdar

    Partha Sikdar

    PhD Student & Graduate Research Assistant

    Learn More About Partha Sikdar

  • Shuangyan Wu

    Shuangyan Wu

    PhD Student & Graduate Assistant

    Ongoing Research: Development of Lightweight Ballistic Materials from Spectra Fibers.

    This research will investigate the effect of incorporating PUs and nano-materials such as graphene, fullerenes and carbon nanotubes (CNTs) into fiber reinforced composite structures. Using these nanofillers, lighter weight high performance materials can be fabricated and evaluated for their structure and properties. It will also study on the fundamental issues that lead to improvement in performance of protective materials that will lead to an increase in their fracture energy, thus allowing significant reduction in weight required to achieve desired level of protection.

    Learn More About Shuangyan Wu

  • Shafiqul Islam

    Shafiqul Islam

    PhD Student & Graduate Assistant

    Learn More About Shafiqul Islam

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