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Enhancement of the Mechanical Properties of Nanoparticulate Thin Coatings via Surface Modification and Cross‐Linking Additive
Author(s) -
Hesselbach Jutta,
Kockmann Alexander,
Lüke Sabine,
Overbeck Achim,
Garnweitner Georg,
Schilde Carsten,
Kwade Arno
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600528
Subject(s) - materials science , surface modification , coating , nanoparticle , particle (ecology) , scratch , particle size , chemical engineering , kinetics , composite material , nanotechnology , oceanography , physics , quantum mechanics , geology , engineering
The application of modified Al 2 O 3 nanoparticles for thin coatings is investigated to improve especially the mechanical characteristics by cross‐linking the particles using an additive, together with the formulation parameters as well as the cross‐linking kinetics. In general, the experiments demonstrate that the mechanical properties, like hardness and scratch resistance, can be enhanced via particle surface modification in combination with a cross‐linking additive. Specifically, the optimal additive concentration was determined in order to obtain coatings with improved mechanical and constant optical properties. These results were related to the structure formation and cross‐linking behavior. Mechanisms were identified for this series of experiments to explain how the particles bond with each other and how the coating structure is formed by using different additive ratios.