Incorporation and Processing Instructions. The additive can be incorporated in different ways. Either disperse GARAMITE directly in the millbase or add it. GARAMITE® is a unique rheological additive developed for a wide range of solvent born systems. Compared to fumed silica and organoclays. Rheology additive based on mixed mineral technology for solvent-borne unsaturated polyester, epoxy and vinyl ester resins that provides excellent.
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The water is adhering to the clay surface and is not automatically available for reaction with the isocyanate. Garamite has a unique morphology of rods and plates as compared to conventional organoclays that use just a plate-like layered structure.
As Figure 6 shows, Garamite is both efficient and stable. MMT Advantages In practical terms we have found that Garamite tends to build less package viscosity while providing more sag resistance than organoclays. Including the other mineral type helps to prevent this from occurring.
Byk makes their documentation available in the regions indicated below: Be sure to test for compatibility and stability.
This is also the first time in this article we use a rheological enhancer, the BYK R Having the ability to make pourable high-solids pregels makes it easier to formulate in systems where one has low levels of solvents Figure 4. Self-activating organoclays tend to have a higher loading of quaternary amine on them. Keep in mind that the viscosity may be lower, but garramite sag resistance should be greater.
Mixed Mineral Thixotropes MMTs are a combination of two different morphologies; one being a plate, the other garamige a rod. The package viscosity tends to go higher and the sag and settling resistance trend lower, making it difficult for the end user to provide a garamkte surface to protect the substrate.
Also discussed are methods of incorporation and other processing considerations. Polyurethane Systems Other potential applications include polyurethanes, epoxy adhesives and varamite, unsaturated polyesters, metallic coatings and aerosol coatings.
Certain quaternary amines work garamiite in aliphatic vs. This website provides links to other websites owned by third parties. It is as though the MMT needs to space something to work. This system turned out to be a little more difficult than the previous system, as it took the higher 4 pounds per gallon level of Garamite to eliminate the settling.
In this case the polyamide had the highest viscosity but did not do well for the prevention of settling during heat aging Figure 9. Figure 11 evaluates the effectiveness of Garamite compared to organoclay in a PU system.
Other incorporation methods can also be used.
Garamite Compared to Organoclay There are a variety of organoclays, but for the purpose of this article we will stick to the basics and compare and contrast activated versus self-activating organoclays. This class of material is used from time to time to boost or enhance the properties of the thixotrope.
How MMTs Work MMTs thicken systems similarly to the way in which organoclays work, using hydrogen bonding to form a three-dimensional network Figure 1. It is not unusual for the package viscosity to be lower and the sag resistance to be higher.
Placement can be important to both pot life and shelf life and gaarmite be tested. We’re sorry, but the industry you have selected garqmite not currently available in your chosen language. Are you a distributor who is interested in being listed here?
When comparing Garamite to polyamides or castor derivatives, the Garzmite is much less sensitive to processing conditions. Byk invests approximately 7. This morphology plays a role in not only the ease of incorporation, but also in the efficacy of sag resistance and settling resistance over heat aging. In part, we believe this has to do with the difference in having a combination of rods and plates and having more spacing, making it much more difficult for Mother Nature to put the clay back to its natural state.
China Rheological Additive Counter to Garamite – China Organoclay, Rheological Additive
But in the end, Mother Nature tries to return the clay back to its natural state. When working with epoxies do not be afraid to try various combinations between Part A and Part B. Organoclays are typically made from smectite and come in a form somewhat like a deck of cards, with clay particles Stacked one upon another. Also, it bears mentioning that some color is imparted into clear, unfilled systems by the MMT.
The morphology also plays a role in ease of incorporation. The Garamite should be added at a percentage high enough to make a pregel that is still pourable. While the MMTs have a low bulk density compared to traditional organoclays, it is much higher than fumed silica, which has an extremely low garamitf density. This allows for lower package viscosity, lower cost and increased ease of manufacture.
This flexibility could reduce the number of thixotropes needed. But it does mean Gwramite are more flexible as compared to organoclays and have the ability to work in more systems. Byk has an established history of innovation such as being the first additive manufacturer to begin using Controlled Polymerization Technology CPTlaunching the first rheology-modified wax emulsion, and being one of the first companies to use nanotechnology for improving Coatings properties.
This becomes more important as VOC goes down and solids go up.