One of the common questions we get from our customers is, “Which chip do I use to test my fluid?” RheoSense has a variety of different chips and you may wonder which chip would be the best for your application. The m-VROC® has four different designations of chips: A, B, C, and E. These letter values reference the max pressure capability of the MEMS pressure sensors inside the microfluidic flow cell. With the A-series being able to measure the lowest pressures for low viscosity fluids, the E-series are able to measure the highest pressures for higher viscosities and higher shear rates.
Laponite is an additive which is by definition, "a unique specialty additive; a layered silicate manufactured from naturally occurring inorganic mineral sources." The main purpose in which Laponite serves can be separated into two major uses:
1) Rheology Modifier — Laponite is added to various consumer products to improve stability; many products have been shear sensitive or thixotropic behavior. Laponite is often used as a thickener in cosmetics.
2) Film Former — Laponite produces film to create electrically conductive coatings
Aside from these two major uses, Laponite has been used in the healthcare industry as a bioink additive to hydrogels, enabling a habitable environment for stem cells and also playing a role in creating a biodegradable containment for drug delivery.
*Lu's Corner is a new concept hosted by our Technical Specialist, Lu Lu. Lu has been a Technical Specialist with RheoSense for over 2 years. Through meticulous customer relationship development and continuous exploration of new applications, Lu has been able to provide a level of outstanding customer service and support.
What do we talk about when we talk about viscosity? A series stories of viscosity in life.
Story One - Cosmos and Cosmetics
Did you know that even a deadweight machine that is capable of applying 4,448,222 Newtons or 1 million pounds of force?