Effect of shear processing on the linear viscoelastic behaviour and microstructure of bitumen/montmorillonite/MDI ternary composites

被引：16

作者：

Ortega, Francisco J. ^{[1
]}

Navarro, Francisco J. ^{[1
]}

Garcia-Morales, Moises ^{[1
]}

McNally, Tony ^{[2
]}

机构：

[1] Univ Huelva, Ctr Invest Tecnol Prod & Proc Quim Pro2TecS, Dept Ingn Quim, Campus El Carmen, Huelva 21071, Spain

[2] Univ Warwick, WMG, IINM, Coventry CV4 7AL, W Midlands, England

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2017年 / 48卷

关键词：

Bitumen; Nanoclay; Isocyanate; Shear processing; Composite; DIFFERENTIAL SCANNING CALORIMETRY; AMPLITUDE OSCILLATORY SHEAR; MODIFIED LAYERED SILICATES; RUBBER-MODIFIED BITUMENS; RHEOLOGICAL PROPERTIES; POLYMER/CLAY NANOCOMPOSITES; THERMORHEOLOGICAL BEHAVIOR; MELT INTERCALATION; GLASS-TRANSITION; MOLECULAR-WEIGHT;

D O I：

10.1016/j.jiec.2017.01.004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer modified bitumens (PMBs) have largely been utilized as a construction material. However, lack of affinity between bitumen and polymer leads to phase separation, and eventually, performance depletion. In this paper, alternative formulations of bitumen with an organically-modified montmorillonite (OMMT) Cloisite 20A((R)) and polymeric methylene diphenyl diisocyanate (MDI) were prepared by melt blending. Their comprehensive rheological characterisation evidenced improved linear viscoelastic properties when OMMT is added, revealing a noticeable structural reinforcement and thermal stability. Rheological data also showed that MDI-involved reactions control the composite end properties, being greatly influenced by the shear conditions applied. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：212 / 223

页数：12

共 48 条

[1] Glass transition behavior of clay aerogel/poly(vinyl alcohol) composites [J].