کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
606346 | 1454529 | 2016 | 9 صفحه PDF | دانلود رایگان |

• Hierarchical structures demonstrating two new immobile proppant concepts.
• Bi-functionalized molecular anchors for resin attachment to the proppant surface.
• The resin-coated proppants cures to create porous hierarchical structures.
• A pH-responsive reversible bridging layer between the proppant particles.
HypothesisThe assembly of temperature/pH sensitive complex microparticle structures through chemisorption and physisorption provides a responsive system that offers application as routes to immobilization of proppants in-situ.ExperimentsThermogravimetric analysis (TGA) and scanning electron microscopy (SEM) along with energy dispersive X-ray analysis (EDX) have been used to characterize a series of bi-functionalized monolayers and/or multilayers grown on alumina microparticles and investigate the reactive nature of both temperature sensitive cross-linker (epoxy resin) with the layers and pH-responsive bridging layer (polyetheramine).FindingsThe bifunctional acids, behaving as molecular anchors, allow for a controlled reaction with a cross-linker (resin or polymer) with the formation of networks, which is either irreversible or reversible based on the nature of the cross-linker. The networks results in formation of porous hierarchical particles that offer a potential route to the creation of immobile proppant pack.
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Journal: Journal of Colloid and Interface Science - Volume 466, 15 March 2016, Pages 275–283