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 52 条

[21] Strategies for dispersing nanoparticles in polymers [J].

Krishnamoorti, Ramanan .

MRS BULLETIN, 2007, 32 (04) :341-347

[22] In situ block copolymer formation during solid-state shear pulverization: An explanation for blend compatibilization via interpolymer radical reactions [J].

Lebovitz, AH ;

Khait, K ;

Torkelson, JM .

MACROMOLECULES, 2002, 35 (26) :9716-9722

[23] Stabilization of dispersed phase to static coarsening: Polymer blend compatibilization via solid-state shear pulverization [J].

Lebovitz, AH ;

Khait, K ;

Torkelson, JM .

MACROMOLECULES, 2002, 35 (23) :8672-8675

[24] High-shear processing induced homogenous dispersion of pristine multiwalled carbon nanotubes in a thermoplastic elastomer [J].

Li, Yongjin ;

Shimizu, Hiroshi .

POLYMER, 2007, 48 (08) :2203-2207

[25] Melt mixing of polycarbonate with multi-walled carbon nanotubes in miniature mixers [J].

Lin, B ;

Sundararaj, U ;

Pötschke, P .

MACROMOLECULAR MATERIALS AND ENGINEERING, 2006, 291 (03) :227-238

[26] Improving polymer blend dispersions in mini-mixers [J].

Maric, M ;

Macosko, CW .

POLYMER ENGINEERING AND SCIENCE, 2001, 41 (01) :118-130

[27] Polymer nanocomposites containing carbon nanotubes [J].

Moniruzzaman, Mohammad ;

Winey, Karen I. .

MACROMOLECULES, 2006, 39 (16) :5194-5205

[28] Enhancing the strength of polypropylene fibers with carbon nanotubes [J].

Moore, EM ;

Ortiz, DL ;

Marla, VT ;

Shambaugh, RL ;

Grady, BP .

JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 93 (06) :2926-2933

[29] Cellular structures of carbon nanotubes in a polymer matrix improve properties relative to composites with dispersed nanotubes [J].

Mu, Minfang ;

Walker, Amanda M. ;

Torkelson, John M. ;

Winey, Karen I. .

POLYMER, 2008, 49 (05) :1332-1337

[30] Dispersion, agglomeration, and network formation of multiwalled carbon nanotubes in polycarbonate melts [J].

Pegel, Sven ;

Poetschke, Petra ;

Petzold, Gudrun ;

Alig, Ingo ;

Dudkin, Sergej M. ;

Lellinger, Dirk .

POLYMER, 2008, 49 (04) :974-984

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