Molecular mechanisms of failure in polymer nanocomposites

被引：286

作者：

Gersappe, D ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.89.058301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Molecular dynamics simulations of polymers reinforced with nanoscopic filler particles reveal the mechanisms by which nanofillers improve the toughness of the material. We find that the mobility of the nanofiller particle, rather than its surface area, controls its ability to dissipate energy. Our results show similarities between the toughening mechanisms observed in polymer nanocomposites and those postulated for biological structural materials such as spider silk and abalone adhesive.

引用

页数：4

共 25 条

[1]

Allen M. P., 1987, Computer Simulation of Liquids

[2] Simulations of crazing in polymer glasses: Effect of chain length and surface tension [J].

Baljon, ARC ;

Robbins, MO .

MACROMOLECULES, 2001, 34 (12) :4200-4209

[3] PREPARATION AND PROPERTIES OF TAILORED MORPHOLOGY, MONODISPERSE COLLOIDAL SILICA CADMIUM-SULFIDE NANOCOMPOSITES [J].

CHANG, SY ;

LIU, L ;

ASHER, SA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (15) :6739-6744

[4] SOL OR GEL-LIKE BEHAVIOR OF IDEAL SILICA SILOXANE MIXTURES - PERCOLATION APPROACH [J].

COHENADDAD, JP .

POLYMER, 1992, 33 (13) :2762-2767

[5] Where do polymer adhesives fail? [J].

Gersappe, D ;

Robbins, MO .

EUROPHYSICS LETTERS, 1999, 48 (02) :150-155

[6]

Karasek L, 1998, J APPL POLYM SCI, V69, P95, DOI 10.1002/(SICI)1097-4628(19980705)69:1<95::AID-APP11>3.3.CO

[7]

2-S

[8]

Kraus G., 1965, REINFORCEMENT ELASTO

[9] DYNAMICS OF ENTANGLED LINEAR POLYMER MELTS - A MOLECULAR-DYNAMICS SIMULATION [J].

KREMER, K ;

GREST, GS .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (08) :5057-5086

[10]

Larson R.G., 1999, STRUCTURE RHEOLOGY C

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