Mechanical behavior and wrinkling patterns of phase-separated binary polymer blend film

doi:10.1007/s11458-011-0248-3

Front Chem Chin

2011, Vol. 6

Issue (3) : 159-163 https://doi.org/10.1007/s11458-011-0248-3

RESEARCH ARTICLE

Mechanical behavior and wrinkling patterns of phase-separated binary polymer blend film

Xuezhe ZHAO, Shengwei DENG, Yongmin HUANG, Honglai LIU(

), Ying HU

State Key Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai 200237, China

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Abstract

The wrinkling of phase-separated binary polymer blend film was studied through combining the Monte Carlo (MC) simulation for morphologies with the lattice spring model (LSM) for mechanical properties. The information of morphology and structure obtained by use of MC simulation is input to the LSM composed of a three-dimensional network of springs, which allows us to determine the wrinkling and the mechanical properties of polymer blend film, such as strain, stress, and Young’s modulus. The simulated results show that the wrinkling of phase-separated binary polymer blend film is related not only to the structure of morphology, but also to the disparity in elastic moduli between polymers of blend. Our simulation results provide fundamental insight into the relationship between morphology, wrinkling, and mechanical properties for phase-separated polymer blend films and can yield guidelines for formulating blends with the desired mechanical behavior. The wrinkling results also reveal that the stretching of the phase-separated film can form the micro-template, which has a wide application prospect.

Keywords polymer blend film phase separation mechanical property wrinkling lattice spring model

Corresponding Author(s): LIU Honglai,Email:hlliu@ecust.edu.cn

Issue Date: 05 September 2011

Cite this article:

Shengwei DENG,Yongmin HUANG,Xuezhe ZHAO, et al. Mechanical behavior and wrinkling patterns of phase-separated binary polymer blend film[J]. Front Chem Chin, 2011, 6(3): 159-163.

URL:

https://academic.hep.com.cn/fcc/EN/10.1007/s11458-011-0248-3
https://academic.hep.com.cn/fcc/EN/Y2011/V6/I3/159

Fig.1 Morphology (a), normal strain (b) and stress (c) field (at the surface = 10) for the film with = 0.3

Fig.2 Morphology (a), normal strain (a) and stress (b) field (at the surface = 10) for the film with = 0.7

Fig.3 The wrinkling of surfaces of polymer blend film with = 0.3 (a) and = 0.7 (b)

Fig.4 The wrinkling of surfaces of porous films obtained by removal of minority phases in the films with =0.3 (a) and =0.7 (b)

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