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重要知识 | 采用乌氏黏度计法测试黏度的常见材料！
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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℃ |
| ... | ... | ... | ... |
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原创作者：杭州中旺科技有限公司
