Open AccessCyanate Ester Resin/Silica subnanocomposites and their superiority over nanocomposites due to fundamental role of constrained interfacial dynamics
Author(s) -
V. A. Bershteĭn,
Alexander Fainleib,
Д. А. Кириленко,
P. N. Yakushev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012100
Subject(s) - cyanate ester , materials science , nanocomposite , relaxation (psychology) , composite material , polymer , molecular dynamics , amorphous solid , matrix (chemical analysis) , chemical engineering , crystallography , computational chemistry , chemistry , epoxy , psychology , social psychology , engineering
The study of nanostructure, thermal and relaxation properties (by HAADF-STEM, EDXS, DMA and DSC), combined with the calculations of interparticle distances and interfacial areas, has been performed for a series of the hybrid Cyanate Ester Resin (CER)/Si0 2 polymer composites with 0.01 to 10 wt.% Si0 2 units introduced via a sol-gel process. The absence of clusterization, arising only subnanometric Si0 2 nodes and their quasi-regular distribution within the amorphous matrix, with the shortest distances between nodes, provided their exceptional positive impact on the matrix properties at ultra-low Si0 2 contents of 0.03-0.1 wt.%. The superiority of these subnanocomposites over the nanocomposites was determined by the role of constrained interfacial dynamics over the whole matrix.