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- W2016386665 startingPage "9245" @default.
- W2016386665 abstract "Silicate nanorods (attapulgite, ATT) were organically modified and homogeneously dispersed in a cyanate ester (CE) resin. ATT dispersions and networks were characterized by rheological and microscopic measurements. Amine groups grafted onto the particle surface catalyzed the cyclotrimerization of the CE monomers and enabled the CE monomers to enter the inter-rod spacing of loose aggregates easily, resulting in homogenization of the particle size distribution in the nanocomposites. The addition of nanorods decreased the density of organic networks and increased intracyclizations. Covalent bonding at the interface was confirmed by Fourier transform infrared (FTIR) spectroscopy and dynamic mechanical analysis (DMA), which establishes a basis for enhancing/ optimizing mechanical properties of CE resins. Nanocomposite modulus, strength, and toughness increased 40, 42, and 55%, respectively, relative to the neat resin, although high nanorod loadings (e.g., 8 wt %) showed negligible benefit. The interplay between nanorod and resin networks governed the mechanical properties of the nanocomposites. The curing reaction decreased the size of particle aggregates and thus reduced the percolation threshold of particle networks. Particle networks induced the formation of more linear or branching polymer molecular structures, resulting in weaker particle-matrix interactions. These factors reduced the stress transfer efficiency and crack propagation resistance, impairing the extent of reinforcing at high particle loadings." @default.
- W2016386665 created "2016-06-24" @default.
- W2016386665 creator A5002752646 @default.
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- W2016386665 creator A5074973184 @default.
- W2016386665 creator A5078761892 @default.
- W2016386665 date "2008-11-11" @default.
- W2016386665 modified "2023-09-29" @default.
- W2016386665 title "Hybrid Network Structure and Mechanical Properties of Rodlike Silicate/Cyanate Ester Nanocomposites" @default.
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