Experimental evidence of size effect in nano-reinforced polymers: Case of silica reinforced PMMA

被引：40

作者：

Blivi, A. S. ^{[1
]}

Benhui, F. ^{[2
]}

Bai, J. ^{[2
]}

Kondo, D. ^{[3
]}

Bedoui, F. ^{[1
]}

机构：

[1] Univ Technol Compiegne, Sorbonne Univ, Lab Roberval, UMR CNRS 7337, Compiegne, France

[2] Ecole Cent Paris, Lab MSSMAT, UMR CNRS 8579, Paris, France

[3] Univ Paris 06, Sorbonne Univ, IJLRDA, UMR CNRS 7190, Paris, France

来源：

POLYMER TESTING | 2016年 / 56卷

关键词：

Size effect; Nano-reinforced polymers; Mechanical properties; Thermal properties; MECHANICAL-PROPERTIES; INTERPHASE PROPERTIES; THERMAL-PROPERTIES; PARTICLE-SIZE; NANOCOMPOSITES; BEHAVIOR;

D O I：

10.1016/j.polymertesting.2016.10.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study aims at quantifying the nano-size effect in terms of elastic and thermal properties in nano reinforced polymers. Nano-reinforced PMMA with 4% volume fraction of silica nanoparticles was prepared using particle diameters of 15 nm, 25 nm, 60 nm, 150 nm and 500 nm. Uniaxial tensile tests showed an increase in Young's modulus with decreasing particle diameter when the volume fraction was kept constant. This increase is the signature of the nano-size effect on the macroscopic mechanical properties. Conversely to mechanical properties, the presence of particles in the matrix induced a decrease in glass transition, possibly due to weak interactions between the matrix and silica nanoparticles. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：337 / 343

页数：7

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