Lattice spring model of filled polymers and nanocomposites

被引:90
作者
Buxton, GA [1 ]
Balazs, AC [1 ]
机构
[1] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA
关键词
D O I
10.1063/1.1509447
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Mechanical properties of homopolymers containing either solid spheres, rods, or platelets are compared using a three-dimensional lattice spring model, and thus, the effects of filler geometry on the mechanical behavior of the composite are isolated. In addition, the properties of exfoliated and intercalated nanocomposites are examined and the source of the increased reinforcement efficiency in nanocomposites, as a consequence of platelet exfoliation, is elucidated. Viscoelastic deformations are explicitly incorporated in the lattice spring model and, thus, the mechanical response of these filled polymer materials are determined. (C) 2002 American Institute of Physics.
引用
收藏
页码:7649 / 7658
页数:10
相关论文
共 44 条
[21]   An approach to micro-macro modeling of heterogeneous materials [J].
Kouznetsova, V ;
Brekelmans, WAM ;
Baaijens, FPT .
COMPUTATIONAL MECHANICS, 2001, 27 (01) :37-48
[22]  
LAN T, 1995, CHEM MATER, V7, P2144, DOI 10.1021/cm00059a023
[23]   ELASTIC AND FRACTURE PROPERTIES OF THE 2-DIMENSIONAL TRIANGULAR AND SQUARE LATTICES [J].
MONETTE, L ;
ANDERSON, MP .
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 1994, 2 (01) :53-66
[24]   THE MEANING OF THE CRITICAL LENGTH CONCEPT IN COMPOSITES - STUDY OF MATRIX VISCOSITY AND STRAIN RATE ON THE AVERAGE FIBER FRAGMENTATION LENGTH IN SHORT-FIBER POLYMER COMPOSITES [J].
MONETTE, L ;
ANDERSON, MP ;
GREST, GS .
POLYMER COMPOSITES, 1993, 14 (02) :101-115
[25]   EFFECT OF MODULUS AND COHESIVE ENERGY ON CRITICAL FIBER LENGTH IN FIBER-REINFORCED COMPOSITES [J].
MONETTE, L ;
ANDERSON, MP ;
LING, S ;
GREST, GS .
JOURNAL OF MATERIALS SCIENCE, 1992, 27 (16) :4393-4405
[26]  
Okada A., 1987, Polym. Prepr, V28, P447
[27]   Self-affine properties of fractures in brittle materials [J].
Parisi, A ;
Caldarelli, G .
PHYSICA A, 2000, 280 (1-2) :161-165
[28]   Fractures in heterogeneous two-dimensional systems [J].
Politi, A ;
Zei, M .
PHYSICAL REVIEW E, 2001, 63 (05) :561071-561079
[29]   PERCOLATION AND FRACTURE IN DISORDERED SOLIDS AND GRANULAR MEDIA - APPROACH TO A FIXED-POINT [J].
SAHIMI, M ;
ARBABI, S .
PHYSICAL REVIEW LETTERS, 1992, 68 (05) :608-611
[30]   BEHAVIOR OF DEPLETED ELASTIC NETWORKS - COMPARISON OF EFFECTIVE-MEDIUM AND NUMERICAL-CALCULATIONS [J].
SCHWARTZ, LM ;
FENG, S ;
THORPE, MF ;
SEN, PN .
PHYSICAL REVIEW B, 1985, 32 (07) :4607-4617