Abstract
The effect of α phase nucleating agent (NA) 1,3:2,4-bis(3,4-dimethylbenzylidene) sorbitol (DMDBS) on crystallization and physical properties of polypropylene/calcium carbonate (PP/CaCO3) composites has been comparatively investigated. Compared with binary PP/CaCO3 composites, in which CaCO3 exhibits weak heterogeneous nucleation, inconspicuous reinforcement and toughening effects for PP, the introduction of a few amounts of DMDBS induces a great increase of the degree of crystallinity. Largely improved tensile properties, fracture toughness at relatively higher temperature and heat deformation temperature (HDT) are observed for DMDBS nucleated PP/CaCO3 composites.
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This work was financially supported by the National Natural Science and Technology Foundation (No. 50403019), Program for New Century Excellent Talents in Universities (NCET-08-0823) and Sichuan Youthful Science and Technology Foundation (07ZQ026-003) (China).
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Han, L., Wang, Y., Liu, L. et al. Crystallization, mechanical and thermal properties of sorbitol derivatives nucleated polypropylene/calcium carbonate composites. Chin J Polym Sci 28, 457–466 (2010). https://doi.org/10.1007/s10118-010-9051-8
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DOI: https://doi.org/10.1007/s10118-010-9051-8