ArticleIndustrial & engineering chemistry research2025
How Preparation Protocols Control the Rheology of Organoclay Gels.
Article in Industrial & engineering chemistry research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Pressure-Dependent Yield Stress of Organoclay-Based Gels.Langmuir : the ACS journal of surfaces and colloids · 2025Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We elucidate the effect of preparation conditions on the rheological properties of organophilic clays consisting of platelet-like primary particles, VG69 (trademark of SLB) dispersed in oil, by varying the homogenization rate, homogenization temperature, and amount of added water. We establish that stable, nonsedimenting gel formation requires homogenization temperatures higher than 45 °C and the addition of a small amount of water during the homogenization stage. Dried organoclay dispersions, on the other hand, do not form stable gels, independent of the homogenization rate and temperature, suggesting the existence of only weak attractions in the absence of water molecules. Water-induced attraction is necessary to form gels, probably through hydrogen bonding between the silanol group of clay particles and water molecules. Moreover, the effect of homogenization temperature is related to the extent of exfoliation during the homogenization stage as confirmed by X-ray scattering. The gel plateau modulus,
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