(774a) Multifunctional Polymer Nanocomposites

With more awareness of energy conversion/storage and saving, different strategies have been developed to utilize the sustainable and renewable energy. Introducing nanoscale fillers can make inert polymer matrix possess unique properties to satisfy certain functions. For example, alumina nanoparticles have strengthened the weak thermosetting polymers [1]. A combined mixture of carbon nanofibers and magnetite nanoparticles have made the inert epoxy sensitive to magnetic field for sensing applications [2]. Introducing silica nanoparticles into conductive polymers such as polyaniline has enhanced the giant magnetoresistance (GMR) behaviors [3]. The nanoparticles can enhance the stability of the energy storage in the conductive polymer systems [4,5]. The introduced nanoparticles endow the transparent polymer electromagnetic interference (EMI) shielding function while reduce the density significantly [6-10]. With the desired miniaturization, the materials combining different functionalities have become importantly interesting [11].

In this talk, methodologies to prepare nanocomposites and their effects on the produced nanocomposites will be discussed. A variety of advanced polymer nanocomposites will be introduced. Unique properties including mechanical, electrical, optical, magnetoresistance etc. and their applications for environmental remediation, energy storage/saving, fire retardancy, electromagnetic interference (EMI) shielding, and electronic devices, etc. will be presented.

References

[1] Surface Functionalized Alumina Nanoparticle Filled Polymeric Nanocomposite with Enhanced Mechanical Properties, Journal of Materials Chemistry, 16, 2800-2808 (2006). Link to publisher; pdf file

[2] Strengthened Magnetoresistive Epoxy Nanocomposite Papers Derived from Synergistic Nanomagnetite-Carbon Nanofiber Nanohybrids, Advanced Materials, 27(40), 6277-6282, (2015) Link to publisher; pdf file

[3] Giant Magnetoresistive Phosphoric Acid Doped Polyaniline-Silica Nanocomposites, Journal of Physical Chemistry C, 117(12), 6426-6436 (2013) pdf

[4] Silica Doped Nano-polyaniline with Endured Electrochemical Energy Storage and the Magnetic Field Effects, Journal of Physical Chemistry C, 117(25), 13000–13010 (2013) pdf

[5] Electrochromic Polyaniline/Graphite Oxide Nanocomposites with Endured Electrochemical Energy Storage, Polymer, 54(7), 1820-1831 (2013) pdf 

[6] Morphological Regulation Improved Electrical Conductivity and Electromagnetic Interference Shielding in Poly(L-lactide)/Poly(e-caprolactone)/Carbon Nanotubes Nanocomposites via Constructing Stereocomplex Crystallites in Poly(L-lactide) Phase,  Journal of Materials Chemistry C, 5, 2807-2817 (2017),Link to publisher; pdf file

[7] Flexible, conductive, porous, fibrillar polymer–gold nanocomposites with enhanced electromagnetic interference shielding and mechanical properties,  Journal of Materials Chemistry C, 5, 1095 - 1105 (2017) Link to publisher; pdf file

[8] Electromagnetic Field Absorbing Polypropylene Nanocomposites with Tuned Permittivity and Permeability by Nanoiron and Carbon Nanotubes, Journal of Physical Chemistry C, 118(42) 24784-24796 (2014) Link to publisher; pdf file

[9] Electromagnetic Field Shielding Polyurethane Nanocomposites Reinforced with Core-Shell Fe-Silica Nanoparticles, Journal of Physical Chemistry C, 115, 15304-15310 (2011) pdf

[10] Magnetic and Electromagnetic Evaluation of the Magnetic Nanoparticle Filled Polyurethane Nanocomposites, Journal of Applied Physics, 10, 09M511 (2007). Link to publisher; pdf file

[11] An Overview of Multifunctional Epoxy Nanocomposites, Journal of Materials Chemistry C, 4, 5890-5906 (2016) Link to publisher; pdf file