Tuning the mechanical properties of organophilic clay dispersions: Particle composition and preshear history effects
Nikolaos A. Burger,
Benoit Loppinet,
Andrew Clarke
et al.
Abstract:Clay minerals are abundant natural materials used widely in coatings, construction materials, ceramics, as well as being a component of drilling fluids. Here, we present the effect of steady and oscillatory preshear on organophilic modified clay gels in synthetic oil. Both platelet and needlelike particles are used as viscosifiers in drilling fluid formulations. For both particles, the plateau modulus exhibits a similar concentration dependence, GP∼c3.9, whereas the yield strain is γy∼c−1 for the platelets and… Show more
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