The leading blog on nanocellulose

Temperature stability of cellulose fibrils

By Anni Karppinen 13. February 2018

Typically, when using polymeric rheology modifiers, the viscosity of a formulation decreases with increasing temperature and the polymers can even degrade at higher temperatures. This can cause problems for the manufacturer or user, like instability of the formulation or difficulties in application. Cellulose fibrils and cellulose in general are stable against temperatures up to 200-300 °C, which makes them a good choice when a temperature stable viscosity modifier is needed. Earlier, we have described how you can achieve a stable viscosity in your formulation with cellulose fibrils in the temperature range of 20-90 °C. This time I would like to discuss what happens when we go over 100 °C, either in wet or dry state.

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Temaer: temperature, Stability

Topic Tuesday: High temperature stability with cellulose fibrils

By Mats Hjørnevik 30. January 2018

Another episode of Topic Tuesday where we break down the rheological profile of cellulose fibrils under certain conditions. This week we will show you the robustness of your product's rheology profile under different temperatures when using cellulose fibrils.

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Temaer: rheology, temperature, heat, Stability, Video, Topic Tuesday

Montmorillonite Clay (Bentonites) and cellulose fibrils

By Mats Hjørnevik 21. November 2017

Montmorillonite (Bentonite) clay and cellulose fibrils has a lot in common since they both can be used as a rheology modifier in different industries. However, there are also clear distinct differences. I aim to show you how I reflect on these two product technologies, and how you can look for synergies and new innovations when using cellulose fibrils and clay. I will first review the non-soluble nature which is common for these materials and then show how this is reflected in the rheology and stability properties of each. I will also focus my discussion on the bentonite branch of montmorillonite clays due to its similarities with the cellulose fibrils

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Temaer: MFC, temperature, Strength, Stability, pH

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

A blog from Borregaard

Exilva is Borregaard’s innovative new additive within the field of Microfibrillar / Microfibrillated cellulose (MFC). Exilva is a completely natural and infinitely sustainable performance enhancer that improves rheology and stability in product formulations.


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