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Kinexus

The Kinexus rheometer design has been underpinned with the market-defining strengths of the previous generation Bohlin rheometers, coupled with advances in shear and vertical (axial) testing, to deliver a rotational rheometer platform with unprecedented dual-action capabilities.

Kinexus, Malvern Events, Rheological and Viscosity »

[15 Jun 2017 | ]

To support the growing interest in Malvern PANalytical technologies for use in the food and drink industry, we held a joint free seminar devoted to this extremely important industry sector. This took place on Wednesday, June 8th in the Marriott Hotel Schaumburg, Chicago and saw more than 20 enthusiastic attendees from the food industry attend for an applications-focused set of presentations stressing the importance of Malvern PANalytical’s  complementary analytical techniques and the value they add to this sector.  We kicked off with a ‘Deluxe Continental Breakfast’ as befitting the attendees.

Personally, I must say that this was …

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Kinexus, Rheological and Viscosity, Tech Talk »

[8 Jun 2017 | ]

How to best measure a viscosity flow curve?
 
Choosing the right measuring geometry and preventing measurement artifacts
There are several ways to obtain viscosities at different shear rates using a rotational rheometer. For instance, we could gently ramp through the different speeds starting at the lowest and ending at the highest (good for a quick measurement where time is of the essence).  Alternatively, we could step through the required shear rates as discussed later, while waiting for a steady state viscosity at each step.  This is known as generating an equilibrium flow …

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Kinexus, Meet the Experts, Rheological and Viscosity, Rheometry - Rotational »

[9 May 2017 | ]

Controlling the performance of an ink is a complex optimization challenge. Understanding how features of the system, the dispersed particle size in particular, impact stability and behavior during each stage of the printing process is crucial for effective formulation.
Over the past 30 years, the use of commercial and industrial inks has changed substantially. In particular, the maturation of inkjet technology has revolutionized printing. From office printers through to industrial coding and marking systems, inks are now required to meet demanding performance targets, for a wide range of different applications.
Inks are …

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Kinexus, Malvern Events, Meet the Experts, Rheological and Viscosity, Rheometry - Rotational »

[6 Apr 2017 | ]

This week is the Annual European Rheology Conference (AERC) held in beautiful Copenhagen. It has been a great conference so far with the opening reception at the City Hall – what an impressive building.

Malvern had a talk on Tuesday with our very own Nordic Rheology Specialist, Mats Larsson, talking about how “Creep testing can be used as an alternative to multi wave oscillation for determining the true gel point of network polymers“.
The session was appropriately chaired by Professor Henning Winter who along with Francois Chambon set out the criterion for …

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Customer experience, Insitec, Kinexus, Mastersizer, Morphologi G3-ID, Tech Talk »

[30 Mar 2017 | ]

The recently announced merger of Malvern Instruments and PANalytical could not be better timed from the Cement industry’s perspective. Both companies are market leaders in their respective technology fields – Malvern in particle characterization and PANalytical in elemental and mineralogical analysis – and both having strong teams of application experts with a lot of experience in cement production and characterization.
The synergy between the teams and product offerings was described in a recent webinar by Harald van Weeren of PANalytical and myself. The live event was attended by over one hundred participants and …

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Kinexus, Rheological and Viscosity, Tech Talk »

[17 Jan 2017 | ]

Why measure a viscosity flow curve, rather than just give a number?
 

Very often chemists are asked to provide a single viscosity value for a product or formulation without much information about the required conditions of the measurement.  For an oil or low viscosity liquid which is Newtonian this is pretty straightforward, so long as your viscometer is properly calibrated and the measurement temperature is provided. However, most industrially interesting or complex fluids such as polymer solutions, suspensions and emulsions are non-Newtonian, meaning that their viscosity varies with shear rate – …

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Kinexus, Mastersizer, Particle size, Rheological and Viscosity »

[1 Dec 2016 | ]

Peeling back the foil on a gold coin. Popping a perforated window on a festive calendar. Pursuing your favourite coloured wrapper around a bowl. The prize inside many little packages we open this season will be chocolate.
The secret of chocolate’s almost universal appeal is in the mouthfeel the “snap” of the first bite, how the chocolate melts and how it coats the inside of the mouth. Despite being a consumer experience, mouthfeel is strongly related to materials science – chocolate being a complex composite material.
Our instruments hold the key to many of …

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Kinexus, Rheological and Viscosity »

[27 Oct 2016 | ]

It is time to pop on my curly false moustache and chef’s hat to become high, mighty and judgmental about what has been bothering me lately: the ‘not so’ culinary delights on the rheology road….
I travel – a lot! On my travels, I experience a variety of ‘on-the-go’ foods and hotel restaurant experiences. Since I am a rheology specialist and food science and texture ultimately encompasses the science of rheology, I have a tendency to overanalyze everything I eat.

Sauces, custards, creams and gravies… viscosity and consistency…it bothers me! We’ve all …

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Kinexus, Meet the Experts, Rheological and Viscosity »

[12 Sep 2016 | ]

Asphalt Expert Task Group Meeting

The Federal Highway Administration (FHWA) Expert Task Groups (ETGs) on Asphalt Mixtures and Binder Technology is organizing meetings on September, 12-15, 2016.
The upcoming meetings will take place at the University of Mass Dartmouth Campus outside of Falls River, MA – USA.
The purpose of Expert Task Groups (ETG) is to coordinate, develop, and improve national guidance and recommendations for the improvement of asphalt pavement mixtures and asphalt binders.
These groups provide feedback as well as encourage correct utilization and improvement of state-of-the-practice solutions. They also represent all aspects of …

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Kinexus, Meet the Experts »

[16 Jun 2016 | ]

Apologies for not posting sooner, but recently I have had the privilege of visiting some of our customers, covering for a service engineer who is temporarily out of action.
It is hard work, but it has also been a timely reminder of everything that goes into making sure our instruments are working properly and delivering the correct results.
I have been calibrating and installing Kinexus rheometers (and servicing the previous generation of Bohlin rheometers) for the most part, and each of these visits can take several hours to run through the various …

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Chemical identification, Kinexus, Morphologi G3-ID, Particle shape, Spraytec, Tech Talk »

[14 Jun 2016 | ]

MDRS Technology
Finally!  After what has felt like one of the wettest and longest winters in memory here in the UK, we’re now heading into the long, mellow days of midsummer.
But casting its miserable shadow over the barbecues, school holidays and paddling pools is the dreaded allergy season.  As one of the downsides of life in our “green and pleasant land”, during June we are hit hard by the combined impact of pollen from trees, grasses and weeds.
Many of us are now taking a daily antihistamine of some sort, and others …

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Kinexus, Rheological and Viscosity, Rheometry - Rotational, Tech Talk »

[17 May 2016 | ]

Over the last few years, the nail polish industry has really opened up its beauty box of tricks, and on the market today, to name but a few, we see nail polishes with “magnetic, gel, matte, glitter, crackle, stamping, quick-dry, caviar, sponge, color changing, leather and sandy” effects. There are also nail polishes with kale, silk and nylon extracts! It really has turned into an art form. However, in order for us to appreciate the wonders of these magical nail polishes, there must be some exciting science behind it all?
I …

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Kinexus, Rheological and Viscosity »

[11 Feb 2016 | ]

Rheological – geological – but not mythological…
Pluto (not the Disney character – that’s another story) is a word that provokes emotion and comment. This ‘Planet X’ discovered in 1930 by a young graduate student Clyde Tombaugh, never fails to excite the science in all of us.
Demoting Pluto as a ‘real’ planet to a ‘dwarf’ planet a few years back attracted controversy with a huge public outcry and input for and against – the case for demotion was made mainly by a small bunch of political astronomers, it has to be said, so you can …

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Kinexus, Taylor Dispersion Analysis, Viscosizer TD »

[19 Nov 2015 | ]

Polymer solution rheology to protein aggregation – Following Sir G.I. Taylor
In a very fortuitous way indeed, from my academic research at Bristol University through to my work here at Malvern, I have managed to maintain a connection with the brilliant work of Sir Geoffrey Ingram Taylor (1886-1975) – who has quite rightly been described as ‘one of the most notable scientists of the 20th century’ [1]. It’s quite probable that many workers will have come across some important contribution from Taylor in their line of research, but may not realize that …

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Kinexus, Meet the Experts »

[13 Oct 2015 | ]

Last week, I was reviewing some content that my rheology colleagues had published on the Malvern website relating to the axial capabilities of our Kinexus rheometer. This was of interest since it complimented some published work I was sent by one of our Kinexus users, as well as a new BBC gameshow I happened to come across. I’ll explain a bit more!
In a recent blog, entitled “Kinexus, more than just a rheometer!” my colleague John Duffy talked about the advanced features of our Kinexus rheometers such as the ability to …

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Archimedes - Particle Metrology System, Insitec, Kinexus, Meet the Experts, Molecular structure, Molecular weight, Particle size, Rheometry - Rotational »

[12 Oct 2015 | ]

Last week my kids got very frustrated with warm French toast and a new brand of chocolate spread. The French toast, was …of course…warm, and the chocolate was misbehaving: melting and dripping on their fingers …
Now, French toast (and chocolate spread) is a staple at our house but somehow this never happened before. Mom learned the lesson fast: for this new chocolate spread let the French toast cool first! But the little neurons started firing (wonder… I know, but it happens sometimes)…
Little questions and answers in my head: why now? – …

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Kinexus »

[20 Aug 2015 | ]

There is often a necessity to measure, or at least estimate, true viscosity values using non-standard measuring systems on a rotational rheometer. This may be to replicate a mixing or manufacturing process on a lab scale, to keep a sample dispersed and uniform during a measurement or to measure some rheological property that would be difficult or impossible with a standard configuration such as ‘cone and plate’ or ‘concentric cylinders’.
While non-standard measuring systems can be used on our Kinexus rotational rheometers (such as custom made systems attached via our universal …

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Inside Malvern, Kinexus, Laser Diffraction, Mastersizer, Particle size, Rheological and Viscosity, Rheometry - Rotational »

[7 Jul 2015 | ]

My name is Thea Miksch and I recently visited Malvern Instruments for a six day work experience placement.  It was quite a big thing for me since I came from Germany to the UK for this placement. I was a little scared that I wouldn’t understand anything about the technology, but the Malvern employees were great at explaining it so even I got it!
One of the many things I learned is that there is science behind everything. I never thought of the particle size of chocolate or the viscosity of …

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Kinexus, Laser Diffraction, Mastersizer, Particle size, Rheological and Viscosity, Rheometry - Rotational »

[30 Apr 2015 | ]

Nutri Ninja Pro Vs the Nutribullet
Smoothie Wars! Which blends the best?
Here at Malvern Instruments, we seem to enjoy testing the rheological properties of drinks, particularly those of the alcoholic variety! Just before Christmas John Duffy and Steve Carrington looked into the differences between traditional ales and more recently they explored the properties of Guinness. Any excuse to go down the pub…!
Therefore, it was probably about time to explore the healthier option on the drinks menu, and an ideal hangover cure – smoothies. Additionally this was a perfect opportunity to demonstrate …

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Kinexus, Rheological and Viscosity, Rheometry - Rotational »

[17 Mar 2015 | ]

Microfluidic Rheometer and Guinness
The Great Guinness Viscosity Challenge
Last year we did a nice Christmas blog on the viscosity of beer where myself and Steve Carrington took our Microfluidic rheometer down to our local pub to measure a selection of their traditional ales and correlate the results with drinking experience of course. Since then I have been asked a number of times what is the viscosity of the ‘good old black stuff’ otherwise known as Guinness. I am not sure whether my colleagues think I have an extremely sensitive and well …

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