NANOPARTICLE AGGREGATION AND DISPERSION BEHAVIOR CONTROL FOR MATERIAL PROCESSING

Hidehiro Kamiya*, Murino Kobayakawa, Motoyuki Iijima, Esko Kauppinen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Nanoparticle and nanomaterials dispersion and aggregation behavior control is one of the most important fundamental processes to apply the functional properties development of energy related devices, such as solar cell and Li ion secondary battery. Surface modification and treatment by using various surfactants and coupling agents with different molecular structure on prepared nanoparticle surfaces in aqueous solution or non-polar organic solvents were applied to control surface interaction between particles. After surface treatment on nanoparticles in suspension, if surface structure on nanoparticles was almost completely covered and modified by surfactant or coupling agent, hard aggregate or agglomerate of nanoparticles were not formed after evaporating and drying process, and surface modified nanoparticles was able to be re-dispersed into different organic solvent. Uniform nanoparticles dispersed polymer composite or electrode for solar cell and battery were prepared from the above prepared nanoparticle's suspension without aggregation. Furthermore, molecular and nanometer scaled surface structure and interaction after various modification and treatment was characterized by using a colloid probe atomic force microscope, AFM, method. Based on the measurement results, the action mechanism of surfactant and coupling agent was discussed.

Original languageEnglish
Title of host publicationMODTECH 2012: NEW FACE OF T M C R, VOLS I AND II
EditorsD Nedelcu, L Slatineanu, S Mazuru, O Milosevic
Pages497-500
Number of pages4
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
EventModern Technologies, Quality and Innovation - Sinaia, Romania
Duration: 24 May 201226 May 2012
Conference number: 16

Publication series

NameInternational Conference ModTech Proceedings
PublisherMODTECH PUBLISHING HOUSE
ISSN (Print)2069-6736

Conference

ConferenceModern Technologies, Quality and Innovation
Abbreviated titleModtech
CountryRomania
CitySinaia
Period24/05/201226/05/2012

Keywords

  • nanoparticle
  • dispersion
  • control
  • material processing
  • SURFACE MODIFICATION

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