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
苗娜 1张正东 2林志丹 1刘喆 2王义旭1
作者信息
- 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
- 折叠
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.
Abstract
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Key words
dynamic shear rheometer/high viscosity reference material/asphalt/rheological properties/polyisobutylene引用本文复制引用
基金项目
中央级公益性科研院所基本科研业务费专项资金(2021-9021)
出版年
2024
NETL
NSTL
万方数据