Abstract
A series of PA1111/BaTiO3 nanocomposites with different BaTiO3 contents are prepared by the in-situ salification-melt polymerization procedure. The morphological, spectroscopic studies and the property characterization are conducted. The results indicate that the proposed in-situ compositing method can effectively disperse BaTiO3 nanoparticles in PA1111 matrix, and the as-prepared nanocomposites exhibit improved dielectric and piezoelectric properties as BaTiO3 content up. For the nanocomposite with 10 wt% BaTiO3, compared with that of neat PA1111, d33 and g33 is increased by 1.6 and 1.4 times, respectively. The nanocomposites prepared by the in-situ procedure present high piezoelectricity enhancement efficiency, which is attributed to the uniform particle dispersion in the matrix endowed by the secondary interaction between the organic and inorganic components. This work not only helps broaden the application field of PA1111, but also provides a facile energy-saving and modifier-free compositing procedure for the preparation of the uniform polymer-based nanocomposites.
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