Rheological study of automotive adhesives: Influence of storage time, temperature and shear rate on viscosity at dispensing

被引：16
作者：
Hicks, Christina R. [1 ]
Carlson, Blair E. [1 ]
Mallick, P. K. [2 ]
机构：
[1] Gen Motors Co, Warren, MI 48093 USA
[2] Univ Michigan, Dearborn, MI 48128 USA
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2015年 / 63卷
关键词：
Adhesives; Viscosity; Storage time; Temperature; Shear rate; Power law; Cox-Merz rule; Master curve;
D O I：
10.1016/j.ijadhadh.2015.08.011
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This study addresses the adhesive dispensing characteristics of three one-part epoxy-based adhesives by investigating the experimental viscosity data as measured by a parallel plate rheometer. The viscosity data was evaluated as a function of storage time, storage temperature, test (adhesive line) temperature and shear rate, which are related to the adhesive flow rate and pumping pressure. A power law equation was found to best fit the viscosity data for the shear rates considered. The Cox-Merz rule was found to fit the viscosity data reasonably well. This paper also shows the application of time-temperature super-position to predict viscosity at dispensing. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：108 / 116
页数：9
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