Abstract:Very recently emerging trends in polymer nanotechnology has revealed tremendous upsurge in application of graphene and derivatives in development of multifunctional nanocomposites. In present work, recycled polypropylene filled with increasing concentration of kenaf flour modified with sodium hydroxide/cetyl-trimethylammonium bromide (C-TAB) and filled with 3-phr graphene nanoplatelets (xGNP) hybrid nanocomposites were compatibilized using maleic anhydride grafted polypropylene and prepared via melt-intercalat… Show more
“…Fundamentally, inclusion of nanoparticles into polymer matrices has improved the properties of PNC such as flame retardancy, electrical, thermal conductivity, thermal expansion resistance, and so on. [114][115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131] These attributes have resulted in effective use of these materials in automobiles, built-tech, aerospace, packaging, biomedicals, pharmaceuticals, and so on. Two forms of polymer materials used in fabricating polymer/HA composites are nonbiodegradable and biodegradable polymer composites.…”
Section: Polyethlene/ha Composites For Tissue Engineeringmentioning
The ultimate aim of tissue engineering entails fabrication of functional replacements for damaged organs or tissues. Scaffolds facilitate the proliferation of cells, while also improving their various functions. Scaffolds are 3-D structures capable of imitating mechanical and bioactive behaviors of tissues extracellular matrix, which provides enabling environment for cellular bonding, proliferation, and distinction. Hence, scaffolds are often applied in tissue engineering with the aim of facilitating damaged tissue regeneration which is a very important aspect of bone repair. Polymers are broadly utilized in tissue engineering due to their inherent versatility. However, polymers cannot attain mechanical behavior comparable to the bone. Thus, polymer nanocomposites fabricated through inclusion of fibers/or uniformly distributed ceramic/metallic nanoparticles in the matrix are potential materials for bone scaffold fabrication because inclusion of fiber or nanoparticles enhances composites mechanical behavior, while also improving other properties. Hence, this article elucidates recent trailblazing studies in polymer fiber composites and nanocomposites applied in the medical field especially in tissue engineering and bone regeneration. Also insights into market prospects and forecasts are presented.
Polymer composites for structural applications are prone to damage emanating from cracks which are formed deep within the material where detection is not easy and repairing almost not feasible. Material cracking results in mechanical deterioration of pre-reinforced polymer composites utilized in microelectronic polymer-based components which can result in electrical failure. Micro-cracking occurring as a result of thermally and mechanically induced fatigue is additionally an established challenge in polymer performance. Self-healing composites are materials exhibiting capability of automatically recovering when damaged. They derive their inspiration through biological systems peculiar to the human skin which exhibit a natural tendency to undergo healing by themselves. Irrespective of their application, the instance cracks are formed within a polymeric composite and the structural integrity of the material is remarkably compromised. Therefore, this article elucidates very recently emerging advancements on self-healing composites. Challenges, prospects, future market disposition, and application of self-healing composites are also presented.
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