Pyridine-Modified Polymer as a Non-Covalent Compatibilizer for Multi-Walled CNT/Poly[ethylene-co-(methacrylic acid)] Composites Fabricated by Direct Melt Mixing

被引：10

作者：

Cohen, Eyal ^{[1
]}

Ophir, Amos ^{[1
]}

Kenig, Shmuel ^{[1
]}

Barry, Carol ^{[2
]}

Mead, Joey ^{[2
]}

机构：

[1] Shenkar Coll Engn & Design, Dept Plast Engn, IL-52526 Ramat Gan, Israel

[2] Univ Massachusetts, Dept Plast Engn, Lowell, MA 01854 USA

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2013年 / 298卷 / 04期

关键词：

carbon nanotubes; compatibilization; functionalization of polymers; nanocomposites; non-covalent interactions; CARBON NANOTUBE COMPOSITES; ELECTRICAL-CONDUCTIVITY; POLYPROPYLENE COMPOSITES; PERCOLATION THRESHOLDS; FUNCTIONALIZATION; NANOCOMPOSITES; PYRENE; DISPERSION; NETWORKS; RHEOLOGY;

D O I：

10.1002/mame.201200078

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multi-wall CNT/poly[ethylene-co-(methacrylic acid)] composites were prepared by melt mixing. To improve dispersion and promote polymer/nanotube interactions, a novel non-covalent compatibilizer is synthesized by reacting the polymer with 4-(aminomethyl)pyridine. The composite based on the pristine polymer shows electrical and rheological percolation thresholds at nanotube loadings of 1.85 and 1.4wt%, respectively. When 5wt% of the pyridine-modified compatibilizer is added, the corresponding values are reduced to 1.44 and 0.8wt%, respectively. The electrical resistivity decreases even further as 10wt% of the novel dispersing agent is used. Microscopy and Raman spectroscopy confirm the improved dispersion and -interactions established during melt mixing.

引用

页码：419 / 428

页数：10

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