lzutrunks
第6楼2007/09/14
准确的来说
乌氏管和稀释型粘度计是不一样的。
稀释型粘度计是一种特殊的粘度计,装液量非常大。测量部分设计和乌氏管相同,但由于装液量非常大,它允许在不排出上次测量样品的前提下直接再加溶剂改变样品浓度,进行下次及多次测量。用该管可以在中途不进行排样和清洗的情况下进行两点或多点的溶液粘度测量,进而计算相对粘度及特性粘数。而普通的乌氏管测量高聚物特性粘数则需要先测量溶剂,再配置好不同浓度的溶液,一个一个测量,中间还需要清洗管路。
可能市场上直接提供这种粘度管的厂商比较少,你可以直接联系我购买德国SCHOTT的稀释型粘度管
Viscometers for dilution viscometry
Viscometers with suspended ball level designed according to the principle of the Ubbelohde viscometers for determination of the limit viscosity number of polymers. The limit viscosity number is determined automatically in combination with viscosity measuring instruments and piston burette, type AV made by SCHOTT Instruments.
filling quantity: 15--75 ml
overall length: approx. 290 mm
SCHOTT稀释型粘度计资料