275 results about "Properties of water" patented technology

The invention relates to an aqueous binder which is compounded and modified by micro nano material. The modified aqueous binder of the invention adopts emulsion adhesive as matrix and micro-size and nano-size inorganic powder as modifier to prepare the compound and modified aqueous binder. The method of the invention can not only enhance the interface binding force of the aqueous binder, but also greatly improve the properties of water resistance, toughness and extensibility, leading comprehensive performance of the aqueous binder to be improved.

Apparatus and methods for employing electrical properties of water to indicate the level of filtered water in a filtered water container. The container is fitted with a hopper that holds unfiltered water. The hopper is fitted at its base with a removable and replaceable filter cartridge. Water is filtered by draining through the filter medium contained in the filter cartridge into the lower portion of the container. The water level in the lower portion of the container is monitored by means of one or more water level detector strips in the lower portion of the container. The detector strips are in electrical communication with a detection circuit and a control unit. The control unit uses the detection strips to monitor water level and uses such data to track filtered water consumption and to determine when the filter cartridge should be replaced.

The invention discloses a siloxane modified urethane acrylate hyperbranched oligomer and a preparation method thereof and a multi-curing coating obtained therefrom. The siloxane modified urethane acrylate hyperbranched oligomer is short for Si-PUA aligomer and the weight percentage composition thereof is as follows: 20 wt percent to 50 wt percent of vulcabond, 5 wt percent to 40 wt percent of polylol, 20 wt percent to 50 wt percent of hydroxyl acrylate, 1 wt percent to 20 wt percent of heperbranched polyester, 0.5 wt percent to 10 wt percent of diamino siloxane, 0.001 wt percent to 1 wt percent of catalyst, 0.001 wt percent to 1 wt percent of inhibitor and 5 wt percent to 50 wt percent of reactive diluent. The multi-curing coating containing such Si-PUA aligomer can not only realize ultraviolet light-heat dual curing but also realize moisture curing, thus improving the hardness and enhancing adhesive force of the film thereof and having better properties of water resistance, chemical agent resistance and friction resistance.

The invention provides an integrated sampling device for underground water. The integrated sampling device comprises a sampling device main body, a piston pump and a filter, wherein the sampling device main body is used for collecting underground water, the piston pump is connected with the sampling device main body, and the filter is used for filtering underground water; a sampling bottle for sampling is connected to the filter; the piston pump comprises a pump body, a push-pull rod and a piston, and the piston is arranged in the pump body; the pump body is of a hollow structure, an inner partition hole board for dividing the inner part of the pump body into a containing cavity and a water storage cavity is arranged in the pump body, the containing cavity is used for the up-down movement of the piston, and the water storage cavity is used for storing cavity; a water inlet pipe communicated with the water storage cavity is arranged on the pump body and is connected with the sampling device main body; and the lower end of the push-pull rod is connected with the piston through a penetration hole formed in the pump body. The integrated sampling device for underground water has the beneficial effects that the application range is extended, particularly for the middle-low permeability water-bearing layers, the well drilling cost and the power cost of a high-power pump are lowered, the pretreatment processes are integrated, the operation is convenient and efficient, and the properties of water sample are preserved.

The preparation process of organosilicon-acrylic ester nano emulsion includes the following steps: firstly, adopting direct initator to prepare seed emulsion; pre-emulsifying monomer and adopting continuously drop-adding process to drop-add the pre-emulsion into the seed emulsion within 3-5 hr. to make reaction. As compared with non-silanized acrylic emulsion and silanized acrylic emulsion under the same condition said invented nano emulsion possesses more excellent properties of water-resistance, washing-resistance, chemical solvent resistance, weatherability, adhesive force, hardness and tensile strength, etc. and can be extensively used for external wall coating, water-proof paint and water adhesive, etc.

The invention discloses a superhydrophobic surface material and special nano-particles thereof with core-shell structures. The superhydrophobic material with surface having superhydrophobic performance is prepared by enabling the nano-particles with core-shell structures to form an interface in a certain strength with a substrate under the action of an adhesive, and then, hydrophobically treating the interface. The surface of the superhydrophobic material presents the superhydrophobic property and has a contact angle larger than 150 degrees and a rolling angle smaller than 5 degrees so that water drops on the surface can rapidly roll off. The superhydrophobic surface material provided by the invention has favorable purposes in the field of preparing an antifogging material, a waterproof material, a self-cleaning material, a lubricating drag-reducing material, and the like. The method for preparing the superhydrophobic material has the advantages of simple process and cheap raw materials, thereby being suitable for mass production.

The invention relates to a method for estimating suspended matter concentration in turbid lake water based on a VIIRS sensor. The method comprises: based on lake field measured spectrum and substance concentration data, analyzing optical properties of water body and water quality dominant factors; screening wave bands which are sensitive to suspended matter concentration variation in the turbid lake water, using curve fitting to determine an optimal model of suspended matter concentration and ground measured spectrum (Rrs); using Rrc data which is removed with water vapor and ozone absorption and corrected by Rayleigh scattering to establish a suspended matter concentration quantitative model which is suitable to be used for the VIIRS; and finally, using the established model on a VIIRS image, to accurately obtain interannual and inter-monthly variation rules and spatial distribution of the suspended matter concentration of the turbid lake water. Using the method can realize long-term high-precision monitoring of suspended matter concentration of a lake, and the method is helpful to scientifically evaluate interannual suspended matter concentration variation and development trends thereof, and effectively evaluate ecological environment changes of lake water.

The invention discloses a property management system, and the technical problem to be solved is to realize the automation of the whole network. The invention consists of owner client, central server, bank terminal, property server, property management client and data collection terminal. Compared with the prior art, the present invention uses a mobile phone or a computer terminal to connect with the property server and the bank through the central server, and the property server automatically obtains data on water, electricity, gas, parking, and property management expenses, and the user realizes payment and query through the client Operation, to realize that the whole system does not require manual operation, except for the owner's payment, all are automatically completed, and the above-mentioned hardware equipment is automatically controlled. The amount of the bank account controls the entire property management system, which simplifies the procedures of meter reading, data sending, bank processing, etc., and improves work efficiency.

The invention relates to the field of fine chemical engineering materials and specifically relates to a reactive type intumescent flame retardant for water-based polyurethane, which simultaneously contains a carbon source, an acid source, a gas source and active amino groups, and a preparation method of the reactive type intumescent flame retardant. The chemical structure of the reactive type intumescent flame retardant disclosed by the invention is as shown in formula I, the obtained flame retardant does not contain halogen, has relatively high content of phosphorus and nitrogen flame retardant components and shows an aromatic heterocyclic structure, thereby having good stability at high temperature, high char yield, significant intumescence and excellent flame retardance. Two active primary amino hydrogen ions contained in the structure can react with isocyanate to prepare flame-retardant water-based polyurethane, thereby not only effectively solving the problems of poor compatibility, easiness in migration, precipitation and permeation and the like of a traditional complex additive type flame retardant in a water-based polyurethane system, but also overcoming the defect that the physical and mechanical properties of water-based polyurethane become poor caused by the complex additive type flame retardant. When the reactive type intumescent flame retardant provided by the invention is used for preparing water-based polyurethane, the process is easy to control, the properties are easy to regulate, and prepared water-based polyurethane is widely applied to leather finishing, synthetic leather coatings, fabric coatings, building fireproof materials, coating materials, adhesives and other industries. The formula I is described in the specification.

The instant invention relates to an apparatus and method for enhancing the fire extinguishing properties of water for use with fire fighting aircraft. The apparatus and method includes the steps of, and equipment for, transferring media into a holding tank in aircraft; filling a reservoir hopper with water in the aircraft; calculating the amount of media to be added to the reservoir; drawing the calculated amount of media into the reservoir to form an enhanced fire fighting admixture while the aircraft is in flight, wherein the admixture is offloaded by a controlled discharge for use in fighting forest fires.

The invention provides a water-permeable cement concrete reinforcing agent which comprises the following components by total weight: 75-85% of EVA emulsion, 1.5-3% of a thickening agent, 0.1-0.3% of a defoaming agent, 0.5-1.3% of a water reduction agent and 10-30% of water, wherein the EVA emulsion is ethylene-vinyl acetate copolymer emulsion; the content of vinyl acetate is greater than or equal to 15%; the thickening agent is a hydrophilic high-molecular compound; the defoaming agent is an organic silicon compound. Due to adoption of the thickening agent, the dispersibility and the adhesion property of the cement can be improved, the water amount can be reduced, the strength and the properties of water retention, reinforcement, thickening and adhesion improvement of concrete at different stages can be improved, the cohesive force of water-permeableconcrete skeletons can be improved, good construction can be ensured, and the communication porosity of water-permeable cement concrete structure layers can be ensured.

The invention provides water-based phenolic aldehyde epoxy graphene anticorrosion primer and a preparation method thereof. The primer is prepared from a component A and a component B, and the component A comprises water-based epoxy curing agents, titanium dioxide, water-based aluminum paste, carbon black, graphene, nano-barium sulfate, water-based zinc phosphate, iron-titanium powder, dispersing agents, antifoaming agents, foam inhibitors, cosolvent, wetting agents, neutralizer, water-based polyamide wax liquor, flash-rust-proof agents and deionized water; the component B adopts water-based phenolic aldehyde epoxy resin emulsion. The preparation method comprises the steps that the component A is prepared first, and in the using process, the component A and the component B are mixed. According to the anticorrosion primer, due to the fact that the graphene is introduced, the properties of water resistance, acid resistance, alkali resistance, salt tolerance, acetone resistance and salt spray resistance of a coating are greatly promoted; it is indicated that after graphene oxide is introduced into the water-based phenolic aldehyde epoxy graphene anticorrosion primer, the protective property to the coating can be promoted, and the requirements of markets and industries are completely met.

A process for treating the oil-contained sewage includes such steps as filter, pumping in coarse grain equipment, and oil-water separation. It features that in said coarse grain equipment, the mixture of cationic resin and anionic resin is used to form anion-cation resin column which can demulsify the emulsified particles and separate oil from water. Its advantages are simple structure and low cost.

The invention relates to an organic-inorganic composite paint and a preparation method thereof. The organic-inorganic composite paint is prepared from the following components in parts by weight: water, a dispersing agent, a defoaming agent, titanium dioxide, a filling material, an emulsion, water glass, an antifreezing agent, and a thickening agent, wherein the filling material is one or any combinations of heavy calcium carbonate, barite and water-washed soil; the emulsion is the copolymer of styrene and a crylic acid. The organic-inorganic composite paint prepared by the preparation method disclosed by the invention not only has excellent flexibility, but also has the properties of water resistance, alkali resistance and stain resistance.

The invention relates to a construction method for an underwater non-dispersible cement-based self-compaction material. The construction method includes that (1) an underwater pouring position is determined; (2) a cement-based self-compaction material pouring point and a water-soluble high-molecular polymer solution perfusion point are respectively set and definitely communicated with the underwater pouring position; (3) water-soluble high-molecular polymers are dissolved in water to form a water-soluble high-molecular polymer solution, the water-soluble high-molecular polymer solution is poured into the underwater pouring position through the water-soluble high-molecular polymer solution perfusion point, the water-soluble high-molecular polymers are dissolved in water so as to change physical properties of water, and the cement-based self-compaction material is enabled to enter the water-soluble high-molecular polymer solution and can not be dispersed; (4) the cement-based self-compaction material is poured into water through the cement-based self-compaction material pouring point and tightly and fully filled in the underwater pouring position by the aid of self weight of the cement-based self-compaction material to finally form underwater non-dispersible concrete.

The invention discloses a nano mildew-proof quick-drying white latex and preparing method thereof. The nano mildew-proof quick-drying white latex is constituted of polyvinyl alcohol, kaolin, light calcium carbonate, formaldehyde, sodium hydroxide, hydrochloric acid and inorganic nano mildew-proof material, and uses inorganic material of high proportioning and novel high technological inorganic sterilization mildew-proof material to increase adhesion strength, quick-drying property and mildew-proof capability of the white latex. By using property of separating out water at high temperature for polyvinyl alcohol formaldehyde solution, kaolin and light calcium carbonate can be directly added, and technique is simplified. The invention can be widely used for decoration project and firework pot adhesion.

A preparation method of dodecafluoroheptyl-propyl-POSS modified graphene oxide belongs to the technical filed of materials. The preparation process comprises three stages, wherein the first stage is a primary blocking stage, in which a silane coupling agent is added dropwise into T7 dodecafluoroheptyl-propyl-POSS to be subjected to blocking reaction to obtain a solution; the second stage is a grafting reaction stage, in which graphene oxide is added into the solution; the third stage in a secondary blocking ring-closure reaction stage, in which the silane coupling agent and dodecafluoroheptyl-propyl-siloxane are added and react to obtain the dodecafluoroheptyl-propyl-POSS modified graphene oxide with a higher grafting rate. The preparation method provided by the invention adopts three-time blocking and a one-pot synthetic process, greatly improves the grafting efficiency and increases the utilization ratio of fluorine-containing POSS, effectively reduces the dosage of T7 dodecafluoroheptyl-propyl-POSS, increases the density of fluorine and silicone on the surface of graphene, and further improves the surface property of water and oil repellency of graphene, the preparation process is simple, product purity is high and the production cost is low.

The invention relates to the field of coatings, and particularly relates to an epoxy self-leveling floor coating and a preparation method thereof. The epoxy self-leveling floor coating mainly comprises a component 1 and a component 2, wherein the component 1 comprises the following ingredients by mass percent: 40-45 percent of epoxy resin, 5-15 percent of active diluent, 10-15 percent of pigment, 25-45 percent of packing, 0.5-1 percent of dispersant, 0.5-1 percent of deformer, 0.5-1 percent of flow promoter and 0.2-0.5 percent of anti-sedimentation agent; and the component 2 is a curing agent with equal equivalence to the epoxy resin. The epoxy self-leveling floor coating has good chemical properties of water resistance, oil resistance, acid resistance, alkali resistance and salt fog resistance as well as physical properties of abrasion resistance, punching resistance and washing resistance, is flat, beautiful, easily cleaned and easily repaired and maintained, and can meet all the requirements of modern industrial floor; the coating and the preparation method are coincident with the environmental protection ideas and have no harm on human bodies; and the construction is simple, the curing time does not exceed 24 hours, and the coating and the preparation method thereof have a wide application prospect.