Effect of Surface Modification of CaC03 on Mechanical Properties of PP/CaC03 Composite

doi:10.19491/j.issn.1001-9278.2008.06.006

China Plastics ›› 2008, Vol. 22 ›› Issue (06): 26-30 .DOI: 10.19491/j.issn.1001-9278.2008.06.006

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Effect of Surface Modification of CaC0₃ on Mechanical Properties of PP/CaC0₃ Composite

NAGAYAMA Satoshil，YU Jian，NISHI Toshio

1 .Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing100084，China; 2. Graduate School of Science and Engineering, Tokyo Institute of Technology, Tokyo 1528552，Japan

Received:2008-02-03 Revised:1900-01-01 Online:2008-06-25 Published:2008-06-25

Abstract

Abstract: The effect of interface bonding on the properties of PP/CaCO3 composites was investigated.When CaCO3 alone was introduced into PP，the flexural strength and thermal stability of the system improved，while tensile and impact strengths decreased with increasing content of CaCO3.However, whenCaCO3 was introduced together with an clastomer, the impact strength of PP was improved drastically with less decrease in tensile strength.AFM revealed that the clastomer substantially formed coating layers on the CaCO3 surface leading to a core-shell structure. With addition of a coupling agent，such coating became more effective.

Key words: polypropylene, calcium carbonate, composite, clastomer, core-shell structure

NAGAYAMA Satoshil, YU Jian, NISHI Toshio. Effect of Surface Modification of CaC0₃ on Mechanical Properties of PP/CaC0₃ Composite[J]. China Plastics, 2008, 22(06): 26-30 .

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Effect of Surface Modification of CaC0₃ on Mechanical Properties of PP/CaC0₃ Composite

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