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Citation: WANG Yujie, WAN Dong, YU Haiou, WEN Xin, TANG Tao. Preparing Polypropylene/Carbon Nanotubes Nanocomposites by Melt Radical Grafting Reaction[J]. Chinese Journal of Applied Chemistry, ;2013, 30(4): 413-419. doi: 10.3724/SP.J.1095.2013.20272 shu

Preparing Polypropylene/Carbon Nanotubes Nanocomposites by Melt Radical Grafting Reaction

WANG Yujie ^a,b, ,
WAN Dong ^a,b ,
YU Haiou ^a,b ,
WEN Xin ^a ,
TANG Tao ^a

a. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
b. University of Chinese Academy of Sciences, Beijing 100039, China

Received Date: 19 June 2012
Revised Date: 24 July 2012

We report a facile melt radical grafting reaction method to fabricate covalent grafted polypropylene(PP)/carbon nanotubes(CNTs) nanocomposites using 2,5-dimethyl-2,5 (tert-butylperoxy) hexane peroxide(DHBP) to induce the radical and using tetramethylthiuram(TMTD) to control radical grafting reaction.The covalent grafting reaction was characterized by Raman spectroscopy and TEM.The crystallization,thermal and mechanical properties of the composites were studied.Compared with noncovalent grafted PP/CNTs composites and PP,the covalent grafted nanocomposites showed increased crystallization temperatures(2.6 and 12.0℃,respectively) and thermal decomposition temperatures(6.4 and 34.8℃,respectively),an increased tensile strength and tensile modulus to a little extent,and increased notched impact strength by 56.7% and 58.1%,respectively.
- polypropylene,
- carbon nanotubes,
- nanocomposites,
- radical grafting
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