Citation: Liang Han, Yong Wang, Li Liu, Fang-ming Xiang, Ting Huang, Zuo-wan Zhou. CRYSTALLIZATION, MECHANICAL AND THERMAL PROPERTIES OF SORBITOL DERIVATIVES NUCLEATED POLYPROPYLENE/CALCIUM CARBONATE COMPOSITES[J]. Chinese Journal of Polymer Science, ;2010, 28(4): 457-466. doi: 10.1007/s10118-010-9051-8 shu

CRYSTALLIZATION, MECHANICAL AND THERMAL PROPERTIES OF SORBITOL DERIVATIVES NUCLEATED POLYPROPYLENE/CALCIUM CARBONATE COMPOSITES

Received Date: 7 April 2009
Revised Date: 1 June 2009

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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