利用骨料预测环氧树脂系统在固化过程中的动态黏度  

Prediction of dynamic viscosity of epoxy resin system in curing process by using aggregate

作　　者：朱晓霞 梁国星 吕明 赵建 杨坡 岳春雨 Zhu Xiaoxia;Liang Guoxing;Lyv Ming;Zhao Jian;Yang Po;Yue Chunyu(College of Mechanical and Transportation Engineering,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;Shanxi Provincial Key Laboratory of Precision Machining,Taiyuan 030024,Shanxi,China)

机构地区：[1]太原理工大学机械与运载工程学院,山西太原030024 [2]精密加工山西省重点实验室,山西太原030024

出　　处：《中国胶粘剂》2022年第10期34-40,共7页China Adhesives

摘　　要：为了实时监测环氧树脂系统在固化过程中的黏度,建立了一种基于相似理论和落球法的动态黏度预测模型。首先,结合影响黏度的主要因素,利用量纲分析法,推导出无量纲的黏度方程;其次,通过分析实测黏度数据,得出不同粒径骨料在不同的反应时间条件下的黏度预测方程;最后,对比分析方程预测结果与实测黏度。研究结果表明:采用该方法能够在不同粒径骨料条件下预测树脂系统固化过程的实际黏度;预测黏度在树脂系统固化反应前期和后期的置信度高于固化反应中期;当骨料粒径在4.75~6.00 mm时,实测黏度与预测黏度吻合度相对最高。In order to monitor the viscosity of epoxy resin system in the curing process in real time,a dynamic viscosity prediction model based on similarity theory and immersed body(plummet)method was established.First,combined with the main factors affecting viscosity,the dimensionless viscosity equation was derived by using dimensional analysis method.Secondly,by analyzing the real measured viscosity data,the viscosity prediction equation of aggregates with different particle sizes under different reaction time conditions was obtained.Finally,the predicted results of the equation were compared with the measured viscosity.The research results showed that this method could predict the actual viscosity of resin system in the curing process under different particle sizes of aggregate conditions.The confidence level of predicted viscosity in the early and late stage of curing reaction of resin system was higher than that in the middle stage of curing reaction.When the aggregate particle size was 4.75-6.00 mm,the consistency between the measured viscosity and the predicted viscosity was relatively the highest.

关 键 词：树脂系统 固化过程 预测模型 相似理论 落球法 

分 类 号：O633.13[理学—高分子化学]