The leading blog on nanocellulose

MFC and its resistance to heat: Can it create opportunities?

By Mats Hjørnevik 23. May 2017
Microfibrillated cellulose is an interesting rheology additive in several aspects due to its multi-functionalities. It can create pseudoplastic behaviour in flowing systems, prevent cracking of curing systems, improve barrier properties of cured systems, just to name a few opportunities. However, one of its less known characteristics is its ability to perform under a range of different temperatures, without losing the ability to provide the desired viscosity profile. I will in this week’s post focus on how MFC performs at high temperatures in the liquid phases and how it performs in comparison to more well-known rheology additives.
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Temaer: MFC, rheology, temperature, heat

Sharper inkjet images without nozzle clogging

By Otto Soidinsalo 16. May 2017

Have you ever had problems with your inkjet printer? I bet that several people have experienced that during the years. The typical pattern is as follows: Your printer has been lying unused on your desk for weeks when suddenly you have an urgent need to print something. Often the outcome is that either the printing is messy or you end up having a blank paper in your hand. This is usually due to the drying of the ink on the printer head which is also known as nozzle clogging.

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Temaer: MFC, Inkjet

Jars or spray bottles? You choose in your MFC cosmetic formulation

By Rebecca Blell 2. May 2017

In many end products, and specifically in cosmetics, the first thing that attracts the consumer is the packaging format. This implies that the packaging should look good and luxurious as a sign of product performance.

There are many possible technical solutions for packaging of cosmetic products: jars, spray bottles, pumpable dispensers. Have you wondered why some come in jars and others in spray bottles?
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Temaer: MFC

Is MFC compatible with surfactants?

By Rebecca Blell 11. April 2017

Have you run into problems with incompatibilities between the surfactant you would like to use and other ingredients in your formulation? This is a common problem since surfactants are quite versatile in charge and chemical structure as well as in functionalities. This could for example lead to undesired interactions with oppositely charged ingredients.

In this blog post I will try to explain why this would not be an issue when you are planning to introduce microfibrillated cellulose (MFC) in your surfactant based system. You will also find a few recommendations on do’s and don’ts when mixing MFC and surfactants.

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Temaer: MFC, Flow

Market & research review: nanocellulose and MFC is THE hot topic

By Mats Hjørnevik 21. March 2017

A lot of work on the MFC and nanocellulose is going on in an increased amount of business fields, all over the globe. We have seen a significant pick up in the strength and reinforcement functionalities of microfibrillated cellulose during the last 6-12 months, where its ability to provide significant strength improvements is clear. This week we have collected three new interesting areas of giving strength and barrier improvements, with exciting opportunities like bone construction with 3D printing, carbon fiber replacement, and water purification. This is your Exilva blog on exciting innovation, don’t miss out on our collection of news this week, and enjoy your reading!

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Temaer: MFC, MFC reviews

Having trouble producing stable foams?

By Anni Karppinen 28. February 2017

Making foams, in other words introducing gas in a solid or liquid, is needed in industries like construction, composites, home care and personal care. Solid foam is a clever way to produce lightweight structures and insulation materials, whereas many personal care and detergent formulations are required to form a liquid foam. To produce solid foams, you need a blowing agent which introduces gas bubbles in the solid and a solid (often a polymer) that hardens around them. Liquid foams are mainly created by using surfactants and mixing air in. Earlier on this blog, we have explained how microfibrillated cellulose can be used for creating bubble-free gel coats. Could it also help forming intentional foam structures?

 
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Temaer: MFC, rheology

Nanocellulose market development in Japan

By Pål Romberg 21. February 2017

Japanese companies have worked with the cellulose nanofibers (CNF) for more than 20 years and are in the forefront when it comes to technology and application development. You could really say that nanocellulose is big in Japan. In this article we bring you the latest on the market development. 

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Temaer: MFC

How MFC can improve durability and performance of your boat

By Synnøve Holtan 14. February 2017

In my previous blog post, I covered the characteristics of microfibrillated cellulose (MFC) and fumed silica as raw materials used for industrial purposes. I focused on how MFC provides a viable alternative to fumed silica in many applications since they both have large surface areas with similar surface active groups. However, the physical network properties of the two materials differ and may lead to new and exciting discoveries in the end products.

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Temaer: MFC, rheology

Sustainable composites: the compatibility between PLA and MFC

By Otto Soidinsalo 31. January 2017

The market for packaging and packaging solutions is expected to grow in the next four years due to factors like increased online shopping*. At the same time, the demand for sustainable packaging becomes more evident. In this article, we explore the compatibility of MFC with PLA and discuss what could be the benefits of such a mixture in various packaging products. 

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Temaer: MFC

Why is microfibrillated cellulose translucent and not transparent?

By Anni Karppinen 24. January 2017

From time to time I get comments from people interested in microfibrillated cellulose (MFC) that they cannot dissolve the product, and the formulation remains hazy no matter how much they mix. Alternatively, they ask how low the concentration needs to be to get a transparent formulation. The answer to these questions is that microfibrillated cellulose does not dissolve in water (or in common solvents) which means that it does not make a transparent solution, no matter how much it is mixed or how low concentration is used. There is no need to worry, however; the non-dissolved fibers are the key factor to the interesting behavior of MFC. Let’s look at the translucency of MFC in more detail.

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Temaer: MFC