Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Viscosity - Wikipedia

Viscosity - Wikipedia

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. Viscosity can be conceptualized as quantifying the internal frictional force that arises between adjacent layers of fluid that are in relative motion.

Viscosity & Surface Tension - Definition With Examples Of .

Viscosity & Surface Tension - Definition With Examples Of .

However, viscosity results due to collaboration among molecules of the identical molecules located in the same material (in case of fluids). Whereas surface tension is determined by the difference of interactions between the molecules of the material (fluid) with the molecules of the material in contact.

Heat Exchanger Static Mixer for Viscous Materials .

Heat Exchanger Static Mixer for Viscous Materials .

The High Performance Type GX static mixing element structure creates high heat transfer rates in a short length and is capable of processing materials with large differences in viscosity. It is used as a heat exchanger insert in the 1"-2" Diameter tubing size range and exhibits high pressure drops of ~36 times that of an empty pipe.

Conformal Coating Materials | Nordson ASYMTEK

Conformal Coating Materials | Nordson ASYMTEK

Conformal Coating Material Types. . Silicone, the last of the general base formulations, offers a viable solution for VOC-free production, although it has high viscosity. Silicone has high temperature tolerances and chemical resistance. . There are generally three cross-linking reactions for reactive silicone polymers: free-radical reaction .

(PDF) The Viscosity of Liquid-Metals and Alloys

(PDF) The Viscosity of Liquid-Metals and Alloys

For glass-forming systems the temperature-dependence of the viscosity is best fitted by the Vogel-Fulcher-T equation, and a procedure is outlined for estimating the parameters in the equation.

Synthesis of Disentangled Ultra-High Molecular Weight .

Synthesis of Disentangled Ultra-High Molecular Weight .

The polymerization of ethylene to Ultra-High Molecular Weight Polyethylene (UHMWPE) in certain reaction conditions allows synthesis of nascent powders with a considerably lower amount of entanglements: the material obtained is of great interest from both academic and industrial viewpoints. From an academic point of view, it is interesting to follow the evolution of the metastable melt state .

High Viscosity Processor | LCI Corporation

High Viscosity Processor | LCI Corporation

The high viscosity processors are used in the manufacturing and finishing of various polymers, resins, highly viscous food products and other difficult to handle materials. LCI's high viscosity processor is ideal for these application types and many others because it provides higher heat and mass transfer rates for viscous fluids and .

Conversion of lipid into high-viscosity branched bio .

Conversion of lipid into high-viscosity branched bio .

To produce a high-quality bio-lubricant with similar properties compared to poly-α-olefins (PAO) lubricants, we reported herein a novel approach using sustainable and cheap lipids as a raw material, and the process involved the following tandem steps: selective hydrogenation to fatty alcohols (99% yield), dehydration of fatty alcohols to C12-C18 a-olefins (91% yield), and subsequent coupled .

Volcanoes and Volcanic Eruptions

Volcanoes and Volcanic Eruptions

Pyroclastic Material . If the magma has high gas content and high viscosity, the gas will expand in an explosive fashion and break the liquid into clots that fly through the air and cool along their path through the atmosphere. Alternatively it blast out solid pieces of rock that once formed the volcanic edifice.

StaMixCo Products - StaMixCo Static Mixer Products .

StaMixCo Products - StaMixCo Static Mixer Products .

Static Mixers create excellent radial mixing and plug flow conditions required to perform continuous chemical reactions with both low and high viscosity materials. Reaction technology improvements include the product of reaction having a very uniform history with regards to time, temperature, viscosity and molecular weight (narrow molecular .

ExpressTM PentaTM H TM PentaTM H Quick TM regular set .

ExpressTM PentaTM H TM PentaTM H Quick TM regular set .

Express impression materials comply with the ISO 4823 standards for impression materials and are classified as Type 1, High Viscosity (Express Penta H, Express Penta H Quick) or Type 3, Low Viscosity (Express regular set, light body (green), Express fast set, light body (blue), Express regular set, regular body (purple)).

1 Material Properties of Plastics - Wiley-VCH

1 Material Properties of Plastics - Wiley-VCH

The viscosity of the melt is dependent on the inner structure, like average molecular weight and spreading of the molecular weight around the average value. According to DIN EN ISO 1133:2005–2009 [10], the melt-flow index (MFI) is a measure for the melt viscosity. The MFI gives the amount of material that will be

Low Exothermic Epoxy Systems | MasterBond.com

Low Exothermic Epoxy Systems | MasterBond.com

Low exothermic epoxies with low mixed viscosity excel in moderate to large volume casting and potting applications. These systems generate low heat even in deep cross section thicknesses. These formulations are solid, avoid air entrapment, can flow into tight crevices around complex shapes and contain no solvents or diluents.

Glass Ionomer Cement - an overview | ScienceDirect Topics

Glass Ionomer Cement - an overview | ScienceDirect Topics

Tauseef Ahmad Rangreez, Rizwana Mobin, in Applications of Nanocomposite Materials in Dentistry, 2019. 13.22 Glass ionomer cements. Glass ionomer cements are the mixture of glass and an organic acid. Initially, glass ionomers were used to replace the lost osseous; but now, these are used in dentistry because of their tooth-colored resemblance and translucency.

A Helpful Guide to Processing High Viscosity Resins .

A Helpful Guide to Processing High Viscosity Resins .

Solvents will cut the viscosity without impacting curing or material properties in most cases, as they will flash off quickly once the material starts its exothermic reaction. The bottom line is that you will need to incorporate the proper equipment and techniques into your process in order accommodate using viscous materials.

Temperature, Viscosity, and Concentration in Parenteral .

Temperature, Viscosity, and Concentration in Parenteral .

Mar 10, 2015 · During drug product manufacturing, a material's viscosity can directly or indirectly influence certain unit operations.For example, pumping viscous solutions through narrow pathways can generate sufficient shear and cavitation stresses, which .

Viscosity of Silicone Rubber | SIMTEC

Viscosity of Silicone Rubber | SIMTEC

Jun 22, 2015 · The viscosity of the polymer depends on the molecular weight of the material which, in turn, is a function of the degree of polymerization. That means, the greater the degree of polymerization, the higher the molecular weight, and the higher the molecular weight, the longer the polymer. The longer the polymer is, the higher the viscosity.

Volcanoes and Volcanic Eruptions

Volcanoes and Volcanic Eruptions

Pyroclastic Material . If the magma has high gas content and high viscosity, the gas will expand in an explosive fashion and break the liquid into clots that fly through the air and cool along their path through the atmosphere. Alternatively it blast out solid pieces of rock that once formed the volcanic edifice.

Cyanoacrylate or Super Glue: What It Is and How It Works .

Cyanoacrylate or Super Glue: What It Is and How It Works .

Cyanoacrylate glue is the industrial name for what is commonly known as "Crazy Glue" or "Super Glue". In fact, the term cyanoacrylate glue generally describes quick-bonding super glues. They can be used to combine anything from metal to plastic and even human skin. How It Works Unlike traditional adhesives which are water-based, cyanoacrylate glue is composed of an acrylic resin. The .

Viscosity 101 | 2010-10-01 | Adhesives & Sealants Industry

Viscosity 101 | 2010-10-01 | Adhesives & Sealants Industry

Oct 01, 2010 · Most people in the adhesives and sealants industry are aware of viscosity and realize that it characterizes the way a material will flow. More technically speaking, viscosity refers to a material's resistance to flow; it can be measured in various ways, depending on the nature of the application. An evaluation of how the material is being processed in manufacturing or how the end .

Continuous Stirred Tank Reactor (CSTR): (Follows Middleman p

Continuous Stirred Tank Reactor (CSTR): (Follows Middleman p

Continuous Stirred Tank Reactor (CSTR): (Follows Middleman p. 301-306 and 340-348) A stirred tank is the most fundamental of mixers and many common mixers from the Brabender mixer used in lab to a cup of coffee with a spoon can be considered a stirred tank under some set of approximation.

Sulfonation and Sulfation Processes - Chemithon

Sulfonation and Sulfation Processes - Chemithon

rapid reaction and heat evolution. Additionally, as shown in Figure 3, the reactants increase in viscosity between 15 and 300 times as they are converted from the organic feedstock to the sulfonic acid[1]. This large increase in viscosity makes heat removal difficult. The high viscosity of the formed products reduces the heat transfer

Understanding High Viscosity Mixing

Understanding High Viscosity Mixing

To better understand the ramifications of high-viscosity mixing, let's first review a much simpler case — that of turbulent flow in low-viscosity mixing. Turbulent Flow. When a turbine-type mixer creates turbulence in the lower viscosity ranges (less than 5,000 centipoise), the resulting flow is chaotic.

Dilute Solution Viscosity | SGS Polymer Solutions

Dilute Solution Viscosity | SGS Polymer Solutions

Jun 06, 2019 · Dilute Solution Viscometry (DSV) is a testing method used to determine the relative, inherent, or intrinsic viscosity of a polymer. Viscosity increases or decreases as molecular weight increases or decreases. While DSV doesn't provide an exact measurement of weight, changes in viscosity help scientists determine whether or not a polymer's molecular weight has changed as a .

7 Factors for Selecting a Stirring Impeller - Caframo Lab .

7 Factors for Selecting a Stirring Impeller - Caframo Lab .

Viscosity; Generally a prop impeller is said to be better for water-like and lower viscosities, while the pitched blade turbine and the vertical blade turbines are more effective for mixing higher viscosity materials. Very high viscosity mixing is addressed with square blades and anchor paddles. Compatibility with stirring equipment.

How to Calculate Viscosity | Sciencing

How to Calculate Viscosity | Sciencing

Liquid viscosity is a measure of the internal friction of a liquid. Liquids with high viscosities flow slowly, whereas low viscosity liquids flow quickly. Lava has a relatively high viscosity; water has a relatively low one. You can measure the viscosity of a liquid by measuring the velocity of a sphere as it falls through the liquid.

Tackling Difficult Mixing Problems - AIChE

Tackling Difficult Mixing Problems - AIChE

it was before being stretched. Because of both the high viscosity and the elastic behavior, special equipment is often required for mixing viscoelastic materials. Dough mixing equipment, for instance, typically has blades that stretch and fold or cut the dough (e.g., a .

2.7: Impression materials | Pocket Dentistry

2.7: Impression materials | Pocket Dentistry

Some impression materials are not available in a sufficiently high-viscosity version for use in a stock tray, and these include zinc oxide–eugenol, polyether and polysulphide elastomers. Others, such as impression compound (compo), plaster of Paris, alginate and the silicones are available in formulations that can be used with a stock tray.

Science of Bone Cement - Healio

Science of Bone Cement - Healio

Figure 1: Themistokles Gluck applied a mixture of plaster and colophony for cemented fixation of his ivory total knee arthroplasties in 1870. The successful, long-term performance of orthopedic .

Bio-Oil - an overview | ScienceDirect Topics

Bio-Oil - an overview | ScienceDirect Topics

The water is derived from feed material moisture, reaction water produced during pyrolysis, reaction water from secondary cracking, and bio-oil storage. The presence of water has both a positive and negative effect on bio-oil characteristics: water lowers the heating value but reduces the viscosity and helps to stabilize the bio-oil.