M**U
发帖数: 2752 | 1 My boss would like to buy a Ubbelohde-type viscometer. We want a digital one
or one that can be connected to a computer so that it can collect data
automatically. I never touch any viscometer before. Does anyone who are
familiar with viscometer can recommend a brand that I can consider?
Thank you! |
|
f****n
发帖数: 67 | 2 【 以下文字转载自 Macromolecules 讨论区 】
发信人: funren (funren), 信区: Macromolecules
标 题: 请教VISCOMETER和rheometer的区别
发信站: BBS 未名空间站 (Mon Oct 4 20:52:02 2010, 美东)
G'和G"能不能用VISCOMETER来测，用来测一种蛋白hygrogel，
我现在只有VISCOMETER，可以得到RMP，mPa，shear stress，shear rate，torque的数
据，但不知道这些数据有什么用，
那位高人解答一下啊，谢谢， |
|
f****n
发帖数: 67 | 3 G'和G"能不能用VISCOMETER来测，用来测一种蛋白hygrogel，
我现在只有VISCOMETER，可以得到RMP，mPa，shear stress，shear rate，torque的数
据，但不知道这些数据有什么用，
那位高人解答一下啊，谢谢， |
|
w********h
发帖数: 12367 | 4 ATS RheoSystems/REOLOGICA Instruments
Rheology Staff Engineer
ATS RheoSystems/REOLOGICA Instruments are a comprehensive rheological
instrumentation and technical support company specializing in rheometer and
viscometer design, research level rheometers and rheology, capillary
rheometers,
rheological consulting, viscometers, and viscosity measurements, real-time
light
and thermal cure profiling, low and high pressure rheology measurements,
dynamic shear rheometers (DSR) for asphalt testing accord |
|
y*h
发帖数: 2121 | 5 简易的装置有那种viscometer吧，用个合适的Spindle应该就能测的。
我们用的是Brookfield Viscometer。 |
|
n******e
发帖数: 1046 | 6 Chemical Engr (MS/PhD): Mechanical Integrity (stretch circuits, DCA,
embeddeds)
Chemical Engr (MS/PhD): Thermal Characterization, Simulation/Modeling/
Process/QTA Coordination
Mechanical Engr (MS): Design - Rigid/Rigid Flex , Prototype and QTA
Integration (Local & CN)
Mechanical Engr (MS): Design - Flex, Prototype and QTA Integration (
Local & CN)
我知道的一些要求
Materials/Mechanical Testing:
Ion Chromatography TMA, DMTA, DSC linked w/ FTIR
X-Sectioning Rheometer... 阅读全帖 |
|
b**********a
发帖数: 30 | 7 来自主题: Macromolecules版 - 请教 Ubbelohde Viscometer |
|
a**e
发帖数: 168 | 8 谢谢了， PCL 是不溶于meoh的， 而文献上PDI 都和PCL Br段很相似或者更好
对了， 这个 还有一个问题， 在gpc上 refrective index curve 上有拖尾， 但
viscometer 上拖尾不明显，
大家用的是什么数据呢？ |
|
s*****n
发帖数: 741 | 9 请大家帮忙，我是做有机的，现在要用GPC 测一下合成的高分子 Mn、Mw。 不知道这个
GPC 工作原理是什么，特别是 Wyatt tech 的 miniDAWN TREOS light scattering,
Optilab rEX differential refractometer， and Viscostar II viscometer (Wyatt
Technology Corporation) detectors 的这三个检测器的工作原理。我看了他们的说明
书，还是不明白。
如果您用的不是 Wyatt tech 的，也没关系，我想大致的原理应该差不多吧。欢迎大家
指导，老板催的急，我自己还是不太懂，希望大家帮忙。
先谢过了 |
|
w********h
发帖数: 12367 | 10 RheoSense, Inc., developer of proprietary technology VROC® (viscometer/
rheometer-on-a-chip) needs an assertive sales engineer to promote and
cultivate our growth rate in Eastern region (but not limited).
What we need:
* Strong knowledge of rheology and viscometry, and application of these
techniques
* Detail oriented
* Experience in understanding the customer’s need, and providing solutions
and demonstrations with an easy-to-follow style
* Following through to completion
What we want:
* Ad |
|
|
