Citation:
DAI Xin, SHANG Qing-Kun, LI Shi-Chun, XIU Yan-Hua, FENG Xue-Jiao, FU Gao-Feng, YAN Rui. Preparation and Properties of Nano-CaCO3/OMMT/HDPE Ternary Composite[J]. Chinese Journal of Applied Chemistry,
;2008, 25(11): 1296-1300.
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Binary compounds nano-CaCO3/HDPE,organic montmorillonite(OMMT)/HDPE and ternary composites nano-CaCO3/OMMT/HDPE were prepared by means of a twin-screw extruder.Stearic acid(SA) was used to improve the properties of nano-CaCO3.The main mechanical properties of these composites were investigated.The results show that the impact strength of nano-CaCO3(SA)/HDPE can be increased by 29.08% via adding treated nano-CaCO3,while the tensile strength of OMMT/HDPE increased by 106.4% via adding OMMT than those of HDPE itself.Most of main mechanical properties of ternary composite(nano-CaCO3/OMMT/HDPE) have been improved greatly due to the synergistic effect of organic montmorillonite with nano-CaCO3 treated by SA.Its tensile strength,Young's modulus,flexural strength,elastic modulus and impact strength of the ternary composite were increased by 124.6%,302.7%,73.86%,58.97% and 27.25% over those of HDPE,respectively.
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Keywords:
- ternary composite,
- nano-CaCO3,
- organic montmorillonite,
- HDPE
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