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Thursday, 04 June 2020
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Raw materials & technologies, Technologies, Nanotechnology

Dispersing inorganic nanoparticles in polymeric materials

Thursday, 1 October 2015

The in situ surface modification of inorganic nanoparticles (NPs) and its influence on the size, morphology, and particle surface properties is increasingly receiving attention.

A study explores the strategy of the in situ modification of CaCO<custom name='sub'>3</custom> NPs with cationic and anionic surfactants. Source: Susanne Schmich/pixelio.de
A study explores the strategy of the in situ modification of CaCO3 NPs with cationic and anionic surfactants. Source: S...

Control of the size and morphology and perfect dispersion of inorganic NPs in polymer matrices fabricates soft materials with unique optical, electrical, magnetic, gas barrier, self-healing, and thermal and mechanical properties.

Hybrid materials offer enhanced thermal stability

A study explores the strategy of the in situ modification of inorganic NPs (CaCO3) with cationic and anionic surfactants and the role of in situ modification on the dispersion of these NPs in thermoplastic polymers (poly ε-caprolactone, PCL). The surfactants having an appropriate polar head with a high charge density bind onto the crystal’s nuclei, protect them against extensive aggregation, and consequently control the size, morphology, and surface properties of the produced NPs. This permits formulation of hybrid materials with enhanced thermal stability and tensile modulus and with a marked increase of the crystallisation rate.

The study is published in: Journal of Materials Science, December 2015, Volume 50, Issue 24, pp 7908-7918

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