57results about How to "High volume expansion" patented technology

Disclosed is construction technology of high polymer material post-grouting squeezed cast-in-place pile. The technology includes that a conventional bored pile is adopted for forming a hole, a grout filling bag is arranged on a reinforcement cage with a designed depth, the reinforcement cage sinks, concrete is cast, high polymer materials are in pressure grouting for the filling bag at a designed position by the aid of a grouting line after the pile building concrete is initially set, and a high polymer material post-grouting squeezed branch and an expanded-base grouting pile are formed. Construction process of a squeezed branch pile and technology of a post-grouting cast-in-place pile are optimized by a method, and problems of squeezing hole collapse of a traditional squeeze branch pipe, excessive scum at a pile end and the like are avoided. In addition, a large quantity of expenditure and construction period can be saved, the high polymer grouting technology is favorable for environmental protection and energy economization, and the quality is easy to control. Besides, the method is simple in construction process, high in operability, convenient in quality control, and remarkable in economic benefit and the effect of management of a soft soil foundation.

The invention relates to a pressure vessel for a machine, especially a turbomachine, which comprises at least 3 casing shell sections, wherein the intersection region of the parting joints is sealed off by a plug which in its interior has a system of holes and passages through which a sealing compound is pressed into the region between plug and casing shell sections, so that after its setting, an elastic, leakproof and non-destructively disassemblable sealing of the intersection region of the parting joints is created. The plug can be fastened on the casing shell sections by means of an integrated flange.

The present invention provides a conductive sheet having a surface resistance of 10 Ω / sq or lower on both surfaces, the conductive sheet comprising a sheet (A) and a sheet (B) laminated to the sheet (A), the sheet (A) having an apparent specific gravity of 0.05 g / cm3 to 0.50 g / cm3 and being formed from fibers having a diameter within the range between 3 and 20 μm, and the sheet (B) being formed from fibers having a diameter of 3 μm or smaller. The sheet (A) may be a fibrous material comprises an organic polymer fiber as its main component.

The invention relates to a temperature switch based on phase-change effect of a low-melting point metal, which comprises a hollow shell, a fixed rod, a hollow piston, a spring and a liquid metal filled between the fixed rod and the hollow piston, wherein at least one inlet and one outlet for ingress and egress of a fluid are arranged on the hollow shell; the fixed rod is fastened on the inner bottom surface of the hollow shell; the piston is tightly sheathed on the outer wall of the fixed rod, and two ends of the piston are respectively connected with the shell and the piston; and when the temperature changes and the low-melting point metal generates phase change, the piston can move relative to the fixed rod under the actions of an expansive force of the metal and a returning force of the spring, and the fluid inlet and outlet on the shell opens or shuts caused by the movement of the piston, so that the functions of open and shut at different temperatures are realized. By fully utilizing the heat physical properties of high heat conductivity and low thermal capacity of the liquid metal, the temperature switch responds very sensitive; simultaneously, because the liquid metal is numerous in variety, the temperature switch is wide in the selection of threshold; and the temperature switch can be widely applied to the fields of intelligent building, residual-heat utilization, industrial heat management, microfluidic chips and the like.

The invention discloses citrus fiber mousse yogurt and a preparation method thereof, and belongs to the technology field of dairy product processing. The yogurt is prepared from, by weight, 500-900 parts of raw milk, 0-100 parts of sugar, 10-300 parts of single cream or anhydrous milk fat, 2-50 parts of citrus fiber, 0-30 parts of dried skim milk, 0-30 parts of milk protein concentrate, 5-20 partsof whey protein, 5-30 parts of a compound emulsifying stabilizer, 0-10 parts of a compound sweetener and 0.02-0.08 part of a starter; after fermentation demulsification, direct agitating beating or sterile nitrogen filling is conducted, and the volume expansion rate is 20-100%. The obtained mousse yogurt still has the capacity of supporting the yogurt structure and keeping bubbles stable at the low pH value (pH=4.0-4.6), and the product system is made to be stable and superior to the existing products. The texture is dense, the taste is smooth, and meanwhile the dietary fiber function is achieved.

The present invention relates to a rechargeable battery that can use a negative electrode active material having a high volume expansion rate by receiving volume variation of an electrode assembly in a case. The rechargeable battery according to the present invention includes i) an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator that are wound in a jelly roll shape to have a flat portion and curved portions disposed at both sides of the flat portion, ii) a case for receiving the electrode assembly, and iii) a cap assembly combined with the case to close and seal the case and that is electrically connected to the electrode assembly. When a direction that is perpendicular to a surface of the separator disposed in the flat portion is set to a first direction, the thickness of the flat portion measured along the first direction is smaller than the maximum thickness of the curved portion measured along the first direction.

The invention discloses an eggshell-yolk structured cobaltosic oxide-nitrogen doped carbon / carbon nanocage composite material and a preparation method and application thereof. The preparation method comprises the following steps: 1) preparing a carbon nanocage; 2) growing a metal organic framework ZIF-67 crystal in the carbon nanocage prepared in the step 1) in a confinement manner to obtain a ZIF-67 / carbon nanocage composite material; 3) taking the ZIF-67 / carbon nanocage composite material as a precursor, and performing high-temperature calcination to form a cobaltosic oxide-nitrogen-doped carbon / carbon nanocage porous nano composite material; and 4) taking the cobaltosic oxide-nitrogen-doped carbon / carbon nanocage porous nano composite material as the anode material of the lithium ion battery. The composite material prepared by the invention has the advantages of high capacity, good rate capability, strong cycling stability, simple preparation process and the like.

The invention relates to a polymer gravel pile grouting method for reinforcement of soft foundation and special soil foundation. The polymer gravel pile grouting method includes the following specific implementation steps: (1) pile position hole-forming; (2) grouting pipe installation; (3) graded stone distribution; (4) grouting improvement of polymer; and (5) pile forming. Through the steps of pile position hole-forming, graded stone distribution, grouting improvement of polymer and the like at a reinforced field, after injected two-component swelling polymer materials have chemical reaction, volume of the polymer materials is swelled rapidly and solidified together with graded stone, pile holes are filled by the polymer materials from bottom to top, and the polymer materials swell to be compacted with hole wall rock soil to be combined with the peripheral rock soil fully so as to form a polymer gravel pile. The polymer gravel pile grouting method can achieve rapid reinforcement of soft foundation and special soil foundation, is advanced, efficient, safe and practical for reinforcement of the soft foundation and the special soil foundation, has the advantages of being strong in adaptability, high in strength, rapid, high in tenacity, durable and the like, and has huge economic and social benefits and wide development and application prospects.

The invention relates to a polymer multi-edge pile grouting method for highway slope protection and landslide treatment. The polymer multi-edge pile grouting method includes the following specific implementation steps: (1) pile position arrangement; (2) multi-edge drilling tool manufacturing, and pile position hole-forming; (3) grouting pipe installation; (4) grouting improvement of polymer; and (5) pile forming. According to engineering geological characteristics, the multi-edge drilling tool with three edges or four edges is manufactured, a static hole pressing mode is adopted, multi-edge body pile holes are formed in a landslide mass through pressing, two-component swelling polymer grouting materials are injected in the multi-edge body pile holes, after polymer materials have chemical reaction, volume of the polymer materials is swelled rapidly, the polymer materials are solidified so as to fill the multi-edge body pile holes, and peripheral rock-soil bodies are adhered and compacted so as to form a polymer multi-edge pile with strong anti-skidding capacity. The polymer multi-edge pile grouting method has the advantages of being free of water reaction, strong in adaptability, high in pulling and shearing resistance, small in slope disturbance, rapid to construct, economical, durable and the like and has huge economic and social benefits and wide development and application prospects.

The invention provides a polyurethane hydrogel, which, under the condition of the presence of water, has a water-resin (C) weight ratio of greater than 9:1, through which the polyurethane resin (C) containing terminal isocyanate crosslinking and curing preparation. The above resin (C) is a reaction product of a polyisocyanate (A) and a liquid polyhydroxy compound (B) containing 70% or more of a random copolymer in ethylene oxide When the weight ratio of alkane (a) to propylene oxide (b) is 50:50 to 90:10, it is obtained by copolymerizing ethylene oxide (a) and propylene oxide (b). The invention also provides a preparation method and application of the polyurethane hydrogel.

The present invention provides hole-sealing slurry and a preparation method thereof, and relates to the field of hole-sealing materials, and the hole-sealing slurry comprises the following raw materials by weight: 330-400 parts of cement, 590-670 parts of sand, 3-10 parts of a water reducer, 40-70 parts of an expanding agent, 0.2-0.5 part of aluminum powder, 3-7 parts of an air-entraining agent and 0.3-0.7 part of cellulose. The preparation method of the hole-sealing slurry is as follows: adding the raw materials into a raw material mixer to mix evenly. The hole-sealing material is fast in solidification speed, high in compressive strength and large in volume expansion rate, after 28 days, the strength is up to 20MPa or more, the volume expansion reaches 2.3%, and the preparation process is simple.

This invention provides a chemical plugging rubber plug, a preparation method and application thereof, and belongs to technical field of oil and gas exploration and development. The chemical pluggingrubber plug comprises the following preparation raw materials by weight: 100 parts of a basic liquid including a resin base liquid and a flow pattern regulator; 1-5 parts of an expansion agent including a liquidoid expansion agent and a solidoid phase expansion agent; 1-25 parts of a gelatinizer. The chemical plugging rubber plug takes the base liquid composed of resin base liquid and flow pattern regulator as the main body, and cooperates with the expansion agent and the thickener, so the obtained chemical sealing rubber plug has the advantages of good rheological properties, excellent expansion property and elastic toughness, high bearing strength, strong corrosion resistance to acid, alkali, salt and hydrogen sulfide, irreversible sealing and long validity period.

The invention discloses a fried bread stick with a function of clearing heat. The fried bread stick is prepared from the following raw materials in parts by weight: 100 to 200 parts of wheat flour, 10 to 50 parts of gluten powder, 1 to 10 parts of traditional Chinese medicinal extracting solution, 1 to 10 parts of pineapple juice, 30 to 100 parts of vegetable oil, 5 to 10 parts of aluminum-free leavening agent, 0.5 to 3 parts of edible salt and 10 to 50 parts of water. A preparation method of the fried bread stick comprises the following steps: firstly, kneading dough for the first time; secondly, performing fermentation for the first time; thirdly, kneading dough for the second time; fourthly, preparing small sticks; fifthly, frying; sixthly, draining oil to obtain the fried bread stick with the function of clearing heat. The preparation method of the fried bread stick is simple; the raw materials are reasonably combined and supplement each other; the prepared fried bread stick is balanced and comprehensive in nutritional ingredients, and unique in mouthfeel and flavor, and also has the efficacy of clearing heat and resisting inflame.

The invention discloses a polyethylene / rubber expansion rubber brick for an automobile and a preparation method thereof. The expansion rubber brick is prepared by using polyethylene and rubber as raw materials, then adding foaming agent, foaming promoter, cross linking agent, cross linking assistant, tackifying resin and fire retardant, and performing the processes of mixing, milling, prilling and extrusion molding to prepare the high performance expansion rubber brick which integrates the functions of foaming expansion, bonding, fire retardant and the like and is provided with even texture. The preparation method provided by the invention has the advantages ofsimple process and low preparation cost; and the product has the advantages of high bulk expansion ratio, excellent filling and sealing properties, fire resistance, good bonding performance to the steel plate, even structure, stable performance and pollution-free preparation process.

An adhesive composition that improves structural integrity and insulative properties when applied to a cellulosic substrate is provided. The adhesive composition includes a plurality of microspheres and an emulsion-based polymer that has (i) an elastic modulus greater than 0.5 MPa in the range temperature range of 70° C. to 110° C.; (ii) an absolute log(E) / T slope of less than 0.05 in the range temperature range of 70° C. to 110° C.; and (iii) a tan d value less than 0.6 at 90° C.

The invention belongs to the field of prefabricated part building materials, and particularly relates to a sleeve grouting material for a prefabricated part and a preparation method of the material. The grouting material is formed by mixing sleeve grouting material dry powder for prefabricated parts with water and a polycarboxylate superplasticizer. The grouting material dry powder is prepared from the following components in parts by weight: 70 to 100 parts of cement, 75 to 100 parts of mixed sand, 20 to 30 parts of glass powder, 1 to 3 parts of expanding agent, 1 to 3 parts of thickening agent and 1 to 3 parts of toughening agent; the mass ratio of the sleeve grouting material dry powder for the prefabricated part to water is 1:(0.1-0.15); and the polycarboxylate superplasticizer is a comprehensive shrinkage-reducing polycarboxylate superplasticizer, the mixing amount of the polycarboxylate superplasticizer is 2%-3%, and the polycarboxylate superplasticizer has the effects of defoaming and low hydration heat. According to the introduced comprehensive shrinkage-reducing type polycarboxylate superplasticizer, the influence of bubbles of the polycarboxylate superplasticizer in the using process can be effectively reduced, the hydration heat of cement can be reduced, shrinkage of the sleeve grouting material in the using process of a prefabricated part is reduced, and large-scale application and popularization of the prefabricated part are facilitated.

The invention relates to a temperature switch based on phase-change effect of a low-melting point metal, which comprises a hollow shell, a fixed rod, a hollow piston, a spring and a liquid metal filled between the fixed rod and the hollow piston, wherein at least one inlet and one outlet for ingress and egress of a fluid are arranged on the hollow shell; the fixed rod is fastened on the inner bottom surface of the hollow shell; the piston is tightly sheathed on the outer wall of the fixed rod, and two ends of the piston are respectively connected with the shell and the piston; and when the temperature changes and the low-melting point metal generates phase change, the piston can move relative to the fixed rod under the actions of an expansive force of the metal and a returning force of the spring, and the fluid inlet and outlet on the shell opens or shuts caused by the movement of the piston, so that the functions of open and shut at different temperatures are realized. By fully utilizing the heat physical properties of high heat conductivity and low thermal capacity of the liquid metal, the temperature switch responds very sensitive; simultaneously, because the liquid metal is numerous in variety, the temperature switch is wide in the selection of threshold; and the temperature switch can be widely applied to the fields of intelligent building, residual-heat utilization, industrial heat management, microfluidic chips and the like.

The invention provides a thixotropic chemical sealing channeling agent. The sealing channeling agent comprises the following raw materials: 40 to 55 weight parts of iron rich low-carbon sulfur aluminate, 0.2 to 5.0 weight parts of sodium-based bentonite, 0.5 to 2.0 weight parts of fluid loss agent, 0.2 to 5.0 weight parts of white carbon black, 0.5 to 4.0 weight parts of cyclodextrin and / or starch and 30 to 50 weight parts of water. The chemical sealing channeling agent has the characteristics of strong adhesion and thermal stability, good durability, prominent cracking resistance and the like; the linear expansion rate reaches over 0.2 percent, the compressive strength reaches over 30MPa, and the shearing strength reaches over 10MPa; and by adding dispersant, fluid loss agent and thixotropic regulator, the sealing channeling agent has high thixotropic property and loss resistance.