提供者:杭州中旺科技有限公司 发布时间:2023/10/19 13:30:31 阅读次数:53次 进入该公司店铺
乌氏黏度计工作原理
当流体受外力作用产生流动时,在流动着的液体层之间存在着切向的内部摩擦力,如果要使液体通过管子,必须消耗一部分功来克服这种流动的阻力。在流速低时管子中的液体沿着与管壁平行的直线方向进,靠近管壁的液体实际上是静止的,与管壁距离愈远,流动的速度也愈大。
采用乌氏黏度计法测试黏度的常见材料
| 材料 | 测量结果 | 溶剂 | 测量温度 |
PET 聚对苯二甲酸乙二醇酯/涤纶 | 特性黏度 | 苯酚/四氯乙烷 | 25℃ |
PBT 聚对苯二甲酸丁二醇酯 | 特性黏度 | 苯酚/四氯乙烷 | 25℃ |
PA 聚酰胺/尼龙 | 黏数/相对黏度 | 碳酸/甲酸/间甲酚 | 25℃ |
PAM 聚丙烯酰胺(水处理剂) | 特性黏度/分子量 | 氯化钠水溶液 / 硝酸钠溶液 | 30℃ |
PC 聚碳酸酯 | 黏数(比浓黏度) | 二氯甲烷 | 25℃ |
PVC 聚氯乙烯 | 黏数(比浓黏度)、K值 | 环已酮 | 25℃ |
TP 热塑性均聚和共聚型聚酯 | 黏数(比浓黏度) | 苯酚/四氯乙烷(3:2) | 25℃ |
PCT 聚对苯二甲酸环乙烯二亚甲基醇脂 | 黏数(比浓黏度) | 苯酚/四氯乙烷(3:2) | 25℃ |
| ... | ... | ... | ... |
Hangzhou Zhongwang Technology Co., Ltd. is a professional manufacturer of laboratory instruments with 12 years experiences from china, such as auto ubbelohde viscometers, syringe pumps, auto preparation pipettors, environment detectors and other instruments with well-equipped testing facilities and strong technical force. We provide the overall laboratory solutions. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in university labs, industrial labs, Chemical fiber, Medicine and other industries.
With Auto test as our mission, we continuously create excellence laboratory instruments for the user. Each product is unique to the market, and meet demands of the clients. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.
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