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Issue
Korean Journal of Chemical Engineering,
Vol.34, No.5, 1531-1540, 2017
Effects of polyolefin elastomer on physico-mechanical and thermal properties of HDPE/CaCO3/LDPE-g-MA/POE composites
Ahn Y, Ahn JW, Han C
The HDPE/CaCO3/LDPE-g-MA/POE composite was prepared by blending high density polyethylene (HDPE) filled calcium carbonate (CaCO3), with maleic anhydride grafted low density polyethylene (LDPE-g-MA) as a compatibilizer, and a polyolefin elastomer (POE). The composites exhibited improved tensile strength than composites without POE. The addition of POE led to a decrease in the d-spacing of CaCO3, indicating that core-shell structure was formed between POE and CaCO3. Because of good dispersion of CaCO3, this improved thermal stability and decreased crystallinity (Xc) and conformational change (ΔSc). The composites contributed to improved mechanical property and good dispersion of CaCO3, and efficient activation energy by accelerating the crystallization rate.
Keywords: Polymer Composite; Polyethylene; Calcium Carbonate; Polyolefin Elastomer
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