摘要:
Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic substituents. Also provided are electrochemical cells comprising such separators.
摘要:
A limestone calcined clay cement construction composition comprises a) a cementitious binder comprising one or more calcium silicate mineral phases and one or more calcium aluminate mineral phases, and having a Blaine surface area of at least 3800 cm2/g; b) a supplementary cementitious material having a Dv90 of less than 200 μm comprising (b-1) a calcined clay material and (b-2) a carbonate rock powder in a weight ratio of (b-1) to (b-2) in the range of 0.5 to 2; c) optionally, an extraneous aluminate source; d) a sulfate source; and e) a polyol. The composition contains a controlled amount of available aluminate, calculated as Al(OH)4−, from the calcium aluminate mineral phases plus the optional extraneous aluminate source; and the molar ratio of total available aluminate to sulfate is 0.4 to 2.0. The construction composition further comprises f) an ettringite formation controller. The limestone calcined clay cement construction composition is a reduced carbon footprint composition and exhibits high early strength, high final strength, sufficient open time and high durability.
摘要:
Various cement-containing compositions are disclosed, including insulating cement, forms, and prefabricated building materials produced from cement-containing compositions with insulating properties. Some of the preferred embodiments include expanded polystyrene and an acrylic component to provide enhanced insulating properties, or have a lower density, lighter weight, and increased insulating R-value in comparison with other cement-containing compositions.
摘要:
Various methods for making material capable of forming structural composites are disclosed. For example, a particular method may include growing an amount of cyanotic organisms, separating cell walls of the cyanotic organisms from internal portions of the cyanotic organisms to form a purified algae extract, the purified algae extract being from the internal portions of the cyanotic organisms, and applying an effective amount of alkaline water to the purified algae extract to form a balanced algae extract having little or no chemical reactivity, wherein a pH of the alkaline water is a function of a pH of the purified algae extract.
摘要:
Provided are separators for use in an electrochemical cell comprising (a) an inorganic oxide and (b) an organic polymer, wherein the inorganic oxide comprises organic subsituents. Also provided are electrochemical cells comprising such separators.
摘要:
Wax emulsions for the manufacture of wallboard include water; a lignosulfonic acid or a salt thereof; and at least one wax selected from the group consisting of slack wax, paraffin wax and montan wax. The emulsions may have a pH of between about 6.5 and 7.9. Such emulsions can provide enhanced moisture resistance to the wallboard.
摘要:
A method is for sealing hydrocarbon wells, wherein a composition is used. The composition comprises a prepolymer; a free radical initiator; a hydraulic material; a monomer and water. The composition further comprises an inhibitor.
摘要:
Microcapsules for inclusion in concrete are disclosed. The microcapsules are adapted to reduce the area of defects in the concrete. The microcapsules may include carbonatogenic bacteria spores in a liquid core, contained in a polymer layer. Also disclosed are concrete compositions including the microcapsules.
摘要:
A bag is used to provide an admixture for a hydraulic composition, wherein a wall of the bag includes a layer, the layer including a water-soluble polymer, and wherein an admixture is present in the wall of the bag.
摘要:
A copolymer that has sufficient dispersibility to various kinds of cements, including those having low fluidity (difficult cement). The copolymer is obtained by polymerizing monomer components including an unsaturated (poly)alkylene glycol ether monomer (a), an unsaturated carboxylic acid monomer (b), and an unsaturated cross-linkable monomer (c) or an unsaturated cross-linkable monomer (d). The unsaturated cross-linkable monomer (c) is allyl itaconate or allyl citraconate, or ester thereof. The unsaturated cross-linkable monomer (d) is an ester obtained by reaction of at least one acid, selected from the group consisting of (meth)acrylic acid, maleic acid, fumaric acid, itaconic acid, and citraconic acid and ester derived from the acids, with a (poly)alkylene glycol or a (poly)alkylene glycol ether.