Nanorheology with a Conventional Rheometer: Probing the Interfacial Properties in Compatibilized Multinanolayer Polymer Films

被引：12

作者：

Beuguel, Quentin ^{[1
]}

Guinault, Alain ^{[1
]}

Leger, Liliane ^{[2
]}

Restagno, Frederic ^{[2
]}

Sollogoub, Cyrille ^{[1
]}

Miquelard-Garnier, Guillaume ^{[1
]}

机构：

[1] Hesam Univ, CNAM, CNRS, Lab PIMM Arts & Metiers, 151 Blvd Hop, F-75013 Paris, France

[2] Univ Paris Saclay, Univ Paris SUD, CNRS, Lab Phys Solides, F-91405 Orsay, France

来源：

ACS MACRO LETTERS | 2019年 / 8卷 / 10期

关键词：

NONLINEAR VISCOELASTIC MODEL; ADHESION; CHAINS; POLYETHYLENE; RELAXATION; RHEOLOGY; BLENDS; SLIP; DELAMINATION; ORGANIZATION;

D O I：

10.1021/acsmacrolett.9b00662

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Measuring the viscoelastic behavior of polymers in the vicinity of a surface or under confinement is an experimental challenge. Simple rheological tests of nanolayered films of polyethylene/polyamide 6 compatibilized in situ during the coextrusion process enabled the probing of these interfacial properties. Taking advantage of the different melting points and of the multiplication of the number of interfaces, a drastic increase of dynamic moduli was reported when increasing the interphase volume fraction in the films. A solid-like behavior for the interphase was identified. The complex viscosity of nanolayered films as a function of angular frequency was quantitatively captured for all samples using a weighted mixing law of bulk and interphase viscosities, without additional adjusting parameters, highlighting the interfacial synergy developed in nanolayered polymer films.

引用

页码：1309 / 1315

页数：13

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