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High energy ball milling for the processing of organo-montmorillonite in bulk
AbstractThe key issue for improving the barrier properties of clay polymer nanocomposite (CPN) is to obtain an effective dispersion and exfoliation of the clay platelets into the polymer matrix. Processing of nanoclay in bulk for industrial application still is a challenge. This paper aims to investigate high energy ball milling as an easy technique to achieve the exfoliation of organo-montmorillonite (OMt). OMt was ball-milled under different conditions and the structural changes have been characterized through XRD patterns, HR-TEM images, SEM images, particle size analysis and FT-IR spectra. A series of polyurethane based nanocomposite coating was prepared using these ball-milled OMt and the functional performances, specifically resistance to helium gas permeability and tearing strength were explored targeting inflatables for defence applications.
HighlightsHigh energy ball milling is proposed for easy processing of OMt in bulk.Structural changes of OMt were analyzed with ball milling under varying rpm & time.Exfoliation of the clay platelets was indicated for ball milling at 400rpm for 2h.TPU coating formulations incorporating OMt were synthesized and coated on to fabric.Maximum functional properties were observed with OMt ball-milled at 400rpm for 2h.
High energy ball milling for the processing of organo-montmorillonite in bulk
AbstractThe key issue for improving the barrier properties of clay polymer nanocomposite (CPN) is to obtain an effective dispersion and exfoliation of the clay platelets into the polymer matrix. Processing of nanoclay in bulk for industrial application still is a challenge. This paper aims to investigate high energy ball milling as an easy technique to achieve the exfoliation of organo-montmorillonite (OMt). OMt was ball-milled under different conditions and the structural changes have been characterized through XRD patterns, HR-TEM images, SEM images, particle size analysis and FT-IR spectra. A series of polyurethane based nanocomposite coating was prepared using these ball-milled OMt and the functional performances, specifically resistance to helium gas permeability and tearing strength were explored targeting inflatables for defence applications.
HighlightsHigh energy ball milling is proposed for easy processing of OMt in bulk.Structural changes of OMt were analyzed with ball milling under varying rpm & time.Exfoliation of the clay platelets was indicated for ball milling at 400rpm for 2h.TPU coating formulations incorporating OMt were synthesized and coated on to fabric.Maximum functional properties were observed with OMt ball-milled at 400rpm for 2h.
High energy ball milling for the processing of organo-montmorillonite in bulk
Chatterjee, Upashana (Autor:in) / Butola, B.S. (Autor:in) / Joshi, Mangala (Autor:in)
Applied Clay Science ; 140 ; 10-16
18.01.2017
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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