Dispersion and major property enhancements in polymer/multiwall carbon nanotube nanocomposites via solid-state shear pulverization followed by melt mixing

被引：113

作者：

Masuda, Jun'ichi ^{[1
]}

Torkelson, John M. ^{[1
,2
]}

机构：

[1] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

MACROMOLECULES | 2008年 / 41卷 / 16期

关键词：

D O I：

10.1021/ma801321j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A continuous, solventless, scalable process called solid-state shear pulverization (SSSP) in conjunction with melt mixing (MM) to produce well-dispersed polymer/multiwall CNT (MWCNT) nanocomposites was investigated. Polypropylene and two types of MWCNT was synthesized by FE-SEM were prepared by making a CNT suspension in 50/50 w/w deionized water/2-propanol through low-level bath type sonication for 1.5 h with poly(sodium 4-styrenesulfonate) as dispersant and casting on plasma-treated Si wafers. Crystallization was measured at 411 K by differential scanning calorimetry after annealing at 513 K for 5 minutes. The result shows that in nanocomposites made by SSSP, the CNT agglomerates are sharply reduced in size, forming loose structures interpenetrated by PP. Due to poor dispersion, the melt-mixed hybrid exhibits the slowest crystallization of the PP/CNT-1 systems.

引用

页码：5974 / 5977

页数：4

共 27 条

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