Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, improved expanding capabilities and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises water, a cement precursor material, and an expanding agent. The expanding agent comprising at least a poly(acrylic acid)-metal oxide nanocomposite, where the metal oxide comprises MgO, CaO, or both, and the poly(acrylic acid) comprises a t-butyl terminal group, an isobornyl terminal group, or both.

Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, improved expanding capabilities and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises water, a cement precursor material, and an expanding agent. The expanding agent comprising at least a poly(acrylic acid)-metal oxide nanocomposite, where the metal oxide comprises MgO, CaO, or both, and the poly(acrylic acid) comprises a t-butyl terminal group, an isobornyl terminal group, or both.

A composition including a composite particle and a fluorine-containing polymer, wherein the composite particle comprises a polymer and an inorganic particle dispersed in the polymer, and the polymer contains an acid group-containing monomer unit. Also disclosed is a molded article obtained from the composition.

A composition including a composite particle and a fluorine-containing polymer, wherein the composite particle comprises a polymer and an inorganic particle dispersed in the polymer, and the polymer contains an acid group-containing monomer unit. Also disclosed is a molded article obtained from the composition.

Herein presented is a high electrical conductivity, uniform, material based on nanoparticles-Li.sup.+-polycarboxylate grafted few-layer graphene oxide including perovskite type nanoparticles for filler in polymeric matrices, in direct and reverse osmosis membranes, in lithium batteries, among others. The material is obtained by a method comprising the step of: preparation of a composite material having polymers with mono- or di-acid groups covalently bonded to graphene; optionally further comprising the preparation of a composite material with graphene covalently bonded to polymers having mono- or di-acid groups that have been replaced by lithium ion; and optionally further comprising the preparation of a composite material with graphene covalently bonded to polymers having mono- or di-acid groups that have been replaced by lithium ion in addition to grafted nanoparticles, including nanoparticles perovskite type.

Electro-responsive hydrogel particles are flowed into a first wellbore formed in a subterranean formation. An electric circuit is established between the first wellbore and a second wellbore formed in the subterranean formation. An electric current is applied through the electric circuit, thereby exposing the electro-responsive hydrogel particles to an electric field and causing at least one of swelling or aggregation of the electro-responsive hydrogel particles to form a flow-diverting plug within the subterranean formation. Water is flowed into the first wellbore to increase hydrocarbon production from the second wellbore.

Hydrogels are networks of polymer chains that are swollen in water. These gels can protect vulnerable objects (e.g., an egg or a fruit) if wrapped there around. Gels are constructed by either physical cross-linking (e.g., gelatin) or chemical cross-linking (e.g., acrylamide). The addition of starch granules to the above gels greatly enhances their protective abilities. When a load strikes a gelatin gel containing 20% starch, the peak impact force is reduced by 25% when compared to a bare gel without the starch. Correspondingly, the coefficient of restitution (COR) is also lowered by the presence of starch (e.g., a ball bounces less on a starch-bearing gel). The impact-absorbing effects of starch granules are correlated to their ability to shear-thicken water. When starch granules are gelatinized by heat, they no longer give rise to shear-thickening, and in turn, their protective ability in a gel is also eliminated.

Hydrogels are networks of polymer chains that are swollen in water. These gels can protect vulnerable objects (e.g., an egg or a fruit) if wrapped there around. Gels are constructed by either physical cross-linking (e.g., gelatin) or chemical cross-linking (e.g., acrylamide). The addition of starch granules to the above gels greatly enhances their protective abilities. When a load strikes a gelatin gel containing 20% starch, the peak impact force is reduced by 25% when compared to a bare gel without the starch. Correspondingly, the coefficient of restitution (COR) is also lowered by the presence of starch (e.g., a ball bounces less on a starch-bearing gel). The impact-absorbing effects of starch granules are correlated to their ability to shear-thicken water. When starch granules are gelatinized by heat, they no longer give rise to shear-thickening, and in turn, their protective ability in a gel is also eliminated.

A composition having excellent scorch resistance and storage stability, the composition containing composite particles and a fluoropolymer, and the composite particles including a polymer and inorganic particles dispersed in the polymer.

A composition having excellent scorch resistance and storage stability, the composition containing composite particles and a fluoropolymer, and the composite particles including a polymer and inorganic particles dispersed in the polymer.