动态剪切流变仪校准用标准物质研究分析  

Research and analysis of reference materials for dynamic shear rheometer calibration

作　　者：苗娜[1] 张正东[2] 林志丹 刘喆 王义旭 MIAO Na;ZHANG Zhengdong;LIN Zhidan;LIU Zhe;WANG Yixu(Research Institute of Highway Ministry of Transport,Beijing 100088,China;National Institute of Metrology,China,Beijing 100029,China)

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]中国计量科学研究院,北京100029

出　　处：《中国测试》2024年第6期124-130,共7页China Measurement & Test

基　　金：中央级公益性科研院所基本科研业务费专项资金(2021-9021)。

摘　　要：为填补我国在动态剪切流变仪校准用黏度标准物质空白,对CANNON公司黏度标准物质N2700000SP进行成分分析、黏温性能、流变性能以及动力黏度测试方法研究。通过红外光谱分析,验证N2700000SP主要成分为聚异丁烯。为量化温度对黏度的影响,通过对标准物质的温度扫描,计算得到其在64℃附近黏温系数为-4.5%℃-1;采用剪切速率、温度扫描模式测定其黏温性和流变性能,明确N2700000SP为假塑性非牛顿流体,测试时必须采用合适的剪切速率或角频率。对毛细管法测得的动力黏度结果与标准值进行比较,结果表明毛细管测量方法可靠。研究可支撑我国动态剪切流变仪检校用标准物质研制。Due to fill the gap of viscosity reference material for dynamic shear rheometer calibration in China,the composition analysis,viscosity temperature performance,rheological property and dynamic viscosity test method of the viscosity reference material N2700000SP of CANNON company were studied.Through the infrared spectrum analysis,it was verified that the main component of N2700000SP is polyisobutylene.In order to quantify the effect of temperature on viscosity,the viscosity temperature coefficient of the reference material was calculated to be-4.5%℃-1 around 64℃by scanning the temperature of the reference material.The viscosity temperature property and rheological property of N2700000SP were measured by the shear rate and temperature scanning mode.It was clear that N2700000SP is a pseudoplastic non-Newtonian fluid,and the appropriate shear rate or angular frequency must be used in the test.The dynamic viscosity measured by capillary method is compared with the standard value.The results showed that the capillary method was reliable.The research supported the development of reference materials for dynamic shear rheometer calibration in China.

关 键 词：动态剪切流变仪 高黏度标准物质 沥青 流变性能 聚异丁烯 

分 类 号：TB9[一般工业技术—计量学] TQ317.4[机械工程—测试计量技术及仪器] TH823[化学工程—高聚物工业] U418.1[交通运输工程—道路与铁道工程]