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How does the Rotational Viscometer meet the needs of constant temperature of experimental samples?

旋转粘度计是一种粘度测试的常见仪器,一般是将样品放在烧杯或测量杯中,然后用粘度计进行粘度测试。旋转粘度计在目前社会生产中的应用是越来越广泛,而且基于某种需求或者质量指标要求,很多液态的产品都需要进行粘度测试。如涂料油墨、食品饮料、化工产品 etc.。然而,对于部分的样品由于其本质问题,如容易凝固、温度的变化可能会导致其粘度发生较大的变化等因素,因此需要在测试过程中使得样品持续处于一个合理的温度环境,保证测试的正常和测量结果的准确稳定。

那么对于样品需要恒温的实验需求下,旋转粘度计应该如何满足这种测试的需求呢?传统的方式下,旋转粘度计是可以配套恒温水槽使用的,通过恒温水槽的温控来使测试样品处于一定的温度环境下。像方瑞、尼润等品牌的粘度计都有配套的恒温水槽可选,并且可以将粘度计组装到恒温槽上,形成一体控制。如下图:

How does the Rotational Viscometer meet the needs of constant temperature of experimental samples?  Picture 1

How does the Rotational Viscometer meet the needs of constant temperature of experimental samples?  Picture 2

以上是方瑞的恒温槽连接粘度计进行粘度温控测试。这是常见的粘度测试温控方案,整体的预算也比较亲民。

另外,还有一种更加高科技的粘度测试温控一体方案,那就是尼润的NTV系列粘度温控一体机。生活中很多产品,原本是需要两个不同的产品组合来实现某种功能,而随着技术的进步和发展,多功能设备越来越琳琅满目了,如常见的拍立得,把照相和洗照片功能于一体。粘度计仪器也一样,厂家也会According to市场的需求不断地去推进技术的升级和发展,尼润的粘度温控一体机就是把粘度测试和温度测量集于一体,突破了用恒温水槽和粘度计组成的分体机,实现粘度温控一体化。

How does the Rotational Viscometer meet the needs of constant temperature of experimental samples?  Picture 3

尼润NTV系列旋转粘度计其实是一款流变仪,可以展示流变曲线,内设了自动优化温度程序,控温精度高达±0.1℃。并且还能通过配套的DV软件来控制,简化工作,具有多种不同的量程范围,采用了自动升降系统。NTV流变仪粘度计According to测试的粘度范围划分了十几个不同的型号,满足不同的应用需求,控温范围为-1~150℃。

当然,高技术的费用投入也是更高的,所以价格方面也就更高了,整台设备在2.5w+的价位。

Under normal circumstances, the temperature control is basically within 150°C, but samples such as asphalt, polyethylene wax, and hot melt adhesives have higher temperature requirements, and other high-temperature Rotational Viscometers should be selected to match the temperature control system, such as Nirun’s SNB-AI model can be heated up to 250°C, and there are Fangrui and Jingtian’s high-temperature Rotational Viscometers.

How does the Rotational Viscometer meet the needs of constant temperature of experimental samples?  Picture 4


Therefore, users should choose a Rotational Viscometer that meets their needs according to their actual needs and budget.

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