SNP, Inc. is Synthetic Natural Polymers
Synthetic Natural Polymers
919-598-0400
Fax: 919-598-4674
Durham, NC
Technical Advantages
SNP is a specialty chemical company dedicated to engineering products that meet the specific needs of each and every customer. Our technical department works closely with existing and potential customers to design unique polymers for their individual applications. SNP’s laboratory is equipped to provide technical support and continuous product improvement. By partnering with our customers, we create an optimal environment for creating products that can satisfy your performance and process requirements.
SNP can deliver high quality products and services because of our strong relationships with our current and future customers, by listening to our customers and identifying goals, application development needs, product optimization criteria, and ideas for new product innovation. We leverage our knowledge of natural and synthetic water soluble polymers, along with our understanding of coating applications, product performance and formulation experience to provide our customers excellent service and superior products.
SNP Inc. provides rheology testing and services to multiple industries. We are experts in experimental rheology, with extensive experience in the characterization of products and raw materials. We offer dynamic mechanical and steady shear testing at a reasonable price and with a quick turn around time.
A viscometer is an instrument used to measure the viscosity of a fluid. Viscometers only measure under one flow condition. In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity. Rotational viscometers, like the one shown, use the idea that the torque required to turn an object in a fluid is a function of the viscosity of that fluid. They measure the torque required to rotate a disk or bob in a fluid at a known speed.
The water retention value test provides an indication of fibers' ability to take up water and swell. The test is also highly correlated to the bonding ability of the paper fibers. The water retention value equals the ratio of the water mass to the dry mass. The retention value of a papermaking furnish tends to increase with increasing refining and increasing pH.
The Hercules Hi-Shear Viscometer system measures the viscosity and other flow properties of dispersions and coatings that are subjected to varying degrees of shear. In addition to reporting viscosity, this instrument produces a rheogram whose shape has been used to predict flow performance of a material as it reacts to changes in shear rate. The shape of this curve indicates if a material is shear thinning or shear thickening as the shear rate changes over time. This feature separates the Hercules Hi-Shear Viscometer from other instruments that only provide single-point measurements under low shear. It produces a continuous flow of results reflecting sample reaction to increasing and decreasing shear conditions over time.
Fourier transform infrared (FTIR) spectroscopy is a measurement technique that allows one to record infrared spectra. Infrared light is guided through an interferometer and then through the sample. A moving mirror inside the apparatus alters the distribution of infrared light that passes through the interferometer. The signal directly recorded, called an "interferogram", represents light output as a function of mirror position.
A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces. It is used for those fluids which cannot be defined by a single value of viscosity and therefore require more parameters to be set and measured than is the case for a viscometer. It measures the rheology of the fluid.
At SNP, we can discuss our rheological testing capabilities in more detail. Call us at 919-598-0400 to learn more, or submit an online information request form.
