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The Exilva Blog

The leading blog on nanocellulose

Coatings, adhesives/sealants

A way to reach prolonged stability of starch adhesives

10. March 2020

Starch is a natural polymer found in many processes either as an adhesive or a thickener. Following paper production, corrugated board is the second largest application of non-food starches globally, where it it used as an adhesive between the fluting and liners. The control of the adhesive viscosity during process and storage is critical. However, despite further developments regarding the formulation of starch adhesives, the viscosity is commonly not stable enough over extended periods of time, in particular over weekend storage. In this first of a series of blog posts with the corrugated boards application as the example, I will give an introduction to this problem, and the new technology of Exilva, a microfibrillated cellulose, to solve it.

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9. July 2019

Exilva Microfibrillated Cellulose & Clay Platelets: anti-settling & anti-sedimentation because of yield stress

Clay (including montmorillonite and bentonite) additives and Exilva microfibrillated cellulose (MFC) have a lot in common since they both can be used as rheology modifier in different industries. However, there are also clear differences. In this article, I will review the ability of the materials to provide yield stress and subsequent anti-settling & anti-sedimentation benefits. Tune-in on a comparison between two of the most potent anti-settling & anti-sedimentation additives available.

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11. June 2019

Exilva Microfibrillated Cellulose vs. Fumed silica: anti-settling benefits from effective yield stress

Exilva microfibrillated cellulose and fumed silica are both used for controlling the rheology of liquid systems, such as anti-settling and anti-sedimentation. But when we are comparing the two technologies, we also see differences. In this article, we will show you how the microfibrillated cellulose and fumed silica builds yield stress, and how they consequently can give good anti-settling and anti-sedimentation benefits.

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29. May 2019

How to use Cellulose fibrils with foam forming surfactants

Surfactants are present in most consumer products. The most familiar examples are shampoos, hand wash products and cleaning products in general. Switching to sulfate free surfactants improves the environmental profile, but can be a challenge. Let me show you a way to this.

I will demonstrate that one can use cellulose fibrils to thicken and stabilize formulations with foam forming surfactants. The most important point to remember when preparing such formulations is to avoid foam formation during the incorporation step of surfactants with the cellulose fibrils.

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8. May 2019

Topic Tuesday: Heat of hydration – avoid cracks in concrete curing

What is heat of hydration, and how does it affect the settling and curing phase of the concrete? Learn more about different types of concrete cracking, why they occur - and preventative measures and repair methods for fixing it in this Topic Tuesday. Hint: there are bio-based alternatives available!

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16. April 2019

Topic Tuesday: Next generation gypsum boards

Gypsum boards (plasterboard/drywall) are a very commonly used product in the construction industry. Currently, the production of the boards is a labor-intensive, CO2 producing and energy consuming process with the need for many synthesized additives to retain the flow, strength and setting profiles. What if you could change that?

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11. April 2019

Sedimentation Stability: The Importance of Yield Stress and Storage Modulus

Sedimentation of solid particles in liquid materials, like paints and inks, is caused by gravitational force pulling particles of high density down. In the worst case, sedimentation can result in settling, the formation of a hard layer of solid material on the bottom of the can. How to avoid this?

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26. March 2019

Innovation and Business Performance: Choose the right approach

The investment in change needed for high business performance in five years will compromise business performance in the short- to medium-term. The trade-off facing the Executive of any organisation is between investment in strategic goals and delivering acceptable (‘survival’) performance in the meantime. Here are 4 high-level approaches you should consider – and a hot tip from our side.

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19. March 2019

How to determine a product’s environmental performance

The scientific method Life Cycle Assessment (LCA) is a tool originally developed to scrutinize the environmental performance of products, product systems or services. In recent years, the LCA framework has been expanded to include all aspects of sustainability. This blog post will present what LCA is, how it has developed historically and why you should care about it.

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12. March 2019

What is sustainability, really?

Often the word sustainability is used to designate that something is good, without any specification of good for what or good for whom. It’s time to put some hold to the phrase ‘sustainable’. Learn more on what it means and what you need to keep in mind when talking about sustainable products or solutions.

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5. March 2019

Are you making products with markets in winter harsh areas, and depend on freeze-thaw stability?

When most people were talking about the brutal polar vortex that hit Chicago earlier this year, I am sure many were looking for ways to best protect the products they are producing, transporting, storing and using from being destroyed by freezing. In this blog post, I will briefly mention a few tips on how to make products freeze-thaw stable such that they can be used in winter harsh areas.

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