Effects of annealing on the migration behavior of PA6/clay nanocomposites

被引：55

作者：

Tang, Yong ^{[1
]}

Lewin, Menachem ^{[1
]}

Pearce, Eli M. ^{[1
]}

机构：

[1] Polytech Univ, Polymer Res Inst, Brooklyn, NY 11201 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2006年 / 27卷 / 18期

关键词：

annealing; migration; nanocomposites; PA6;

D O I：

10.1002/marc.200600356

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Migration of clay to the surface of nylon 6-organically modified clay is investigated. The effect of annealing time and temperature on the migration of the clay is reported. Attenuated total reflectance FT-IR spectrometry, X-ray diffraction, and high-resolution electronic microscopy are used in this study. The results obtained indicate that migration occurs predominantly in the samples with exfoliated structure. Migration increases in the temperature range of 250-275 degrees C. A further increase in temperature decreases the extent of migration. Migration increases with time at 250 degrees C. Annealing in the presence of oxygen decreases migration. It is suggested that the extent of migration depends on the concentration of the surfactant and the polymer in the exfoliated particles.

引用

页码：1545 / 1549

页数：5

共 14 条

[1] Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials [J].

Alexandre, Michael ;

Dubois, Philippe .

Materials Science and Engineering: R: Reports, 2000, 28 (1-2) :1-63

[2] Crystallization behavior of nylon 6 nanocomposites [J].

Fornes, TD ;

Paul, DR .

POLYMER, 2003, 44 (14) :3945-3961

[3]

GILMAN J, 2001, SAMPE S LONG BEACH C

[4] Flammability and thermal stability studies of polymer layered-silicate (clay) nanocomposites [J].

Gilman, JW .

APPLIED CLAY SCIENCE, 1999, 15 (1-2) :31-49

[5] Some comments on the modes of action of nanocomposites in the flame retardancy of polymers [J].

Lewin, M .

FIRE AND MATERIALS, 2003, 27 (01) :1-7

[6]

LEWIN M, 2002, REC ADV FLAME RETARD, V12, P84

[7] Nanocomposites at elevated temperatures: migration and structural changes [J].

Lewin, Menachem ;

Pearce, E. M. ;

Levon, Kalle ;

Mey-Marom, Abraham ;

Zammarano, Mauro ;

Wilkie, Charles A. ;

Jang, Bok Nam .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2006, 17 (04) :226-234

[8] Observation of α and γ crystal forms and amorphous regions of nylon 6-clay nanocomposites using solid-state 15N nuclear magnetic resonance [J].

Mathias, LJ ;

Davis, RD ;

Jarrett, WL .

MACROMOLECULES, 1999, 32 (23) :7958-7960

[9] Heat induced structure modifications in polymer-layered silicate nanocomposites [J].

Pastore, HO ;

Frache, A ;

Boccaleri, E ;

Marchese, L ;

Camino, G .

MACROMOLECULAR MATERIALS AND ENGINEERING, 2004, 289 (09) :783-786

[10] Polypropylene/montmorillonite nanocomposites and intumescent, flame-retardant montmorillonite synergism in polypropylene nanocomposites [J].

Tang, Y ;

Hu, Y ;

Li, BG ;

Liu, L ;

Wang, ZZ ;

Chen, ZY ;

Fan, WC .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2004, 42 (23) :6163-6173

← 1 2 →