Browsing Research Units by Subject "Polymers"
Now showing items 1-20 of 20
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A comprehensive rheological study for a flowing polymer-based drilling fluid used for wellbore strengthening
( Society of Petroleum Engineers (SPE) , 2020 , Conference Paper)Loss circulation encountered in highly fractured formations, depleted reservoir, or HP/HT intervals is the root cause of many problems plaguing the oil and gas sector for many years. High pore pressure narrows the window ... -
Containers' for self-healing epoxy composites and coating : Trends and advances
( BME-PT and GTE , 2016 , Article)The introduction of self-healing functionality into epoxy matrix is an important and challenging topic. Various micro/nano containers loaded self-healing agents are developed and incorporated into epoxy matrix to impart ... -
Core-shell nanofibers of polyvinylidene fluoride-based nanocomposites as piezoelectric nanogenerators
( MDPI AG , 2020 , Article)Flexible piezoelectric nanogenerators (PENG) are widely applied to harvest sustainable energy from multiple energy sources. The rational and simple design of PENG have great potential in soft electronics. Here we design a ... -
Destabilization and treatment of produced water-oil emulsions using anionic polyacrylamide with electrolyate of aluminum sulphate and ferrous sulphate
( Society of Petroleum Engineers , 2016 , Conference Paper)Surfactant and polymer flooding technology can greatly enhance the oil recovery through the expansion of sweeping and displacing efficiency. The recovered oil from surfactant and polymer flooding emulsifies the residual ... -
Development of greener d-metal inorganic crosslinkers for polymeric gels used in water control in oil and gas applications
( MDPI AG , 2020 , Article)Crosslinkable polymers, such as polyacrylamide (PAM), are widely applied for water control in oil and gas reservoirs. Organic and inorganic crosslinkers are used to formulate a gel with PAM. Although chromium has a high ... -
Electro-sprayed PVA coating with texture-enriched surface morphology for augmented humidity sensing
( Elsevier B.V. , 2018 , Article)This article reports the modified surface morphology of Poly-vinyl Alcohol (PVA) films using electro-spraying coating technique. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were conducted to examine ... -
Electroactive and Optically Adaptive Bionanocomposite for Reconfigurable Microlens
( American Chemical Society , 2016 , Article)This paper introduces an electroactive bionanocomposite based on poly(diethylene glycol adipate) (PDEGA) and cellulose nanocrystals (CNCs). The bionanocomposites were made using CNCs extracted from cotton and by optimizing ... -
Figure of merit comparison of PP-based electret and PVDF-based piezoelectric polymer energy harvesters
( SPIE , 2016 , Conference Paper)The harvesting of mechanical strain and kinetic energy has received great attention over the past two decades in order to power wireless electronic components such as those used in passive and active monitoring applications. ... -
Gelation kinetics of PAM/PEI based drilling mud for lost circulation applications
( Elsevier B.V. , 2021 , Article)The problem of lost circulation is a direct consequence of the presence of fractures or high permeability. Lost circulation material (LCM) is used to treat the loss that occurs or proactively strengthen the wellbore of the ... -
Influence of polyelectrolytes and other polymer complexes on the flocculation and rheological behaviors of clay minerals: A comprehensive review
( Elsevier B.V. , 2017 , Article Review)Separation of clay minerals from industrial wastewaters is of great academic and practical importance. Current treatment techniques are either not economically viable, not environmentally friendly, or both. Thus, researchers ... -
Loss circulation in drilling and well construction: The significance of applications of crosslinked polymers in wellbore strengthening: A review
( Elsevier B.V. , 2020 , Article Review)Loss circulation is one of the major concerns in drilling and well construction. The uncontrolled flow of fluids into formation while drilling or primary cementing lead to substantial non-productive time (NPT). The methods ... -
Materials and technologies for the tertiary treatment of produced water contaminated by oil impurities through nonfibrous deep-bed media: A review
( MDPI AG , 2020 , Article)This review covers various aspects of the treatment of emulsified oil/water mixtures and is particularly focused on tertiary treatment, which means the reduction of the oil content from 70-100 ppm to below 10 ppm, depending ... -
Polymers in optics
( Elsevier , 2020 , Book chapter)The unique and tunable properties of polymers open up the possibilities for using these materials in numerous applications. Among various peculiar features, the optical properties of polymers and their novel composites, ... -
Prevalence of microplastics in the marine waters of Qatar
( Elsevier Ltd , 2016 , Article)Microplastics are firmly recognized as a ubiquitous and growing threat to marine biota and their associated marine habitats worldwide. The evidence of the prevalence of microplastics was documented for the first time in ... -
Processing, characterization and modeling of recycled polypropylene/glass fibre/wood flour composites
( Elsevier Ltd , 2014 , Article)Polypropylene (PP) is one of the most common thermoplastic materials in the world. There is a need to recycle the large amount of this used material. To overcome the environmental problems, related to the polymer waste, ... -
Review on recent advances in polythiophene based photovoltaic devices
( Elsevier Ltd , 2016 , Article Review)Discovery of conducting polymer introduced us to the total polymeric solar cells (PSC). During the last decade, power conversion efficiency (PCE) of these solar cells has increased from 1% to 11.5% (with the bulk heterojunction ... -
Rheology of Triamine Functionalized Silica Reinforced Polymeric Gels Developed for Conformance Control Applications
( American Chemical Society , 2020 , Article)Recently, cross-linked polymers such as polyacrylamide (PAM)/polyethylenimine (PEI) have been used in conformance control applications to replace conventional lost circulation materials (LCMs). The objective of this work ... -
Spectroscopy of Polymer Nanocomposites
( Elsevier Inc. , 2016 , Book)Spectroscopy of Polymer Nanocomposites covers all aspects of the spectroscopic characterization of polymer nanocomposites. More than 25 spectroscopy characterization techniques - almost all used in materials science - are ... -
Surface modification and grafting of carbon fibers: A route to better interface
( Elsevier Ltd , 2018 , Article)This review is an audit of various Carbon fibers (CF) surface modification techniques that have been attempted and which produced results with an enhancement in the interfacial characteristics of CFRP systems. An introduction ... -
Up-cycling plastic waste into swellable super-sorbents
( Elsevier , 2023 , Article)Environmental pollution caused by plastic waste and oil spills has emerged as a major concern in recent years. Consequently, there has been a growing interest in exploring innovative solutions to address these challenges. ...