Living Reference Work Entry

Encyclopedia of Polymeric Nanomaterials

pp 1-7

Date: Latest Version

Inorganic Nano-fillers for Polymers

  • Yusuke ImaiAffiliated withAdvanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) Email author 


Nanocomposites; Nanocrystal; Nanoparticle


Inorganic nano-filler is a particulate inorganic material with a characteristic size in a range of nanometers. Its dimensional feature gives various distinguishing characteristics over conventional fillers: (1) extremely large interfacial area with polymer matrix, (2) reduction of scattering efficiency for optical wavelength, and (3) size-dependent physical properties.


“Filler” is a form of a material, typically particulate, that is embedded in a polymeric matrix to constitute composite materials. Usually the fillers are incorporated in the composite materials in order to improve or add various properties, e.g., mechanical, thermal, optical, dielectric, electric, magnetic, etc. Chemical structure and amount of the fillers are just a part of factors that determines the properties of the composites. The other important factors include morphological factors such as shape, size, and state of dispersion of the fillers. In ...

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