608results about How to "High foaming ratio" patented technology

The invention discloses a sound absorption and thermal insulation polyolefin foamed sheet and a preparation method thereof. The foamed sheet comprises the following raw materials in parts by weight: 110-140 parts of component A, 20-170 parts of component B, 1-20 parts of foaming agent, 0.01-8 parts of cell regulator and 0.1-20 parts of filler, wherein the component A consists of 100 parts of polyethylene and 10-40 parts of polyethylene copolymer; and the component B consists of 10-30 parts of thermoplastic elastomer, 10-80 parts of polyolefin resin and 0-60 parts of rubber. The method comprises the following steps: weighing the polyethylene resin, the thermoplastic elastomer, the polyolefin resin, the rubber, the foaming agent, the cell regulator and the filler according to the weight parts; and performing mixing granulation, sheet extrusion, irradiation crosslinking and free foaming to obtain the foamed sheet. In the invention, the prepared foamed material integrates the sound absorption and thermal insulation functions, the opening rate reaches 5-70%, the sound absorption coefficient reaches 0.2-0.5, and the heat conductivity coefficient reaches 0.026-0.035.

The invention discloses foam concrete and a method for preparing the same. The foam concrete comprises, by weight, 80 parts of cement, 20 parts of fly ash, 1.25 parts of coagulants, 0.35 part of waterreducing agents, 0.4 part of fibers, 3.5 parts of admixtures, 0.025 part of foam stabilizers, 10 parts of foaming agent solution and 50 parts of water. SDS (sodium dodecyl sulfate), APFA (animal protein foaming agents) and water with certain proportions are mixed with one another to obtain the foaming agent solution, foam is prefabricated by the aid of air compressors, then the foam and cement slurry are mixed with one another, and the foam concrete can be prepared under the conditions of the stirring water temperature of 22.5-45 DEG C, the secondary stirring time of 10-75 s and the foam mixing amount of 2250-2875 ml. The foam concrete and the method have the advantages that the foaming agents of the novel foam concrete are easy to manufacture and operate and low in manufacturing cost, and accordingly the foam concrete is low in input and energy consumption and reliable in quality and can be applied to energy-saving buildings and prefabricated buildings.

The invention discloses a preparation method of an extrusion physical foaming polypropylene bead; the method is as follows: an injector port is arranged at the middle of a machine barrel of a screw extruder, a machine head is provided with a bushing type neck ring mold and a die surface chip cutter, polypropylene foaming material and addition agents are added into the screw extruder, alkane foaming agent is injected into the machine barrel from the injector port, the proportion by weight between the polypropylene foaming material and the alkane foaming agent is 10-25%, the pressure of the neck ring mold is controlled to be 5-30MPa, and the temperature of the neck ring mold is 110-150 DEG C, thus leading the cut material to generate foams when the material enters the atmosphere, and then the product is obtained after cooling and drying. The method of the invention has the advantages of continuous extrusion of the polypropylene foaming beads, low energy consumption, little environmental pollution due to the adoption of the alkane foaming agent, low residue of foaming agent in the foaming bead and high foaming rate.

The invention belongs to the technical field of building materials, and specifically relates to a compound foaming agent for a foam concrete and the preparation method of the compound foaming agent. The compound foaming agent is composed of a surfactant, a protein foaming agent, a foam stabilizing agent, a coagulation accelerator and a water reducing agent. The compound foaming agent provided by the invention is doped with few protein foaming agent and foam stabilizing agent in a surfactant solution to remarkably improve the foaming capability and the foam stabilizing time of the surfactant solution and create favorable conditions for preparing the foam concrete at a low-density grade (not more than 500 Kg/m<3>). In addition, the coagulation accelerator is doped to accelerate the condensation of cement slurry and effectively prevent collapsing; the water reducing agent is doped to improve the working property of a freshly mixed concrete, and reduce the water dosage and improve the strength of the foam concrete at the same time. The product provided by the invention has various functions, and is not limited to only prepare the foam; at the same time, the product provided by the invention has the actions of accelerating coagulation and reducing water, and the product provided by the invention is suitable for preparing the low-density foam concrete.

The invention belongs to the technical field of shoe material manufacturing, and particularly relates to a thermoplastic elastomer foaming shoe material and a preparation method thereof. The thermoplastic elastomer foaming shoe material is prepared from the following raw materials in parts by mass: 100 parts of a modified polyamide elastomer, 0.1 to 0.5 part of an antioxidant and 0 to 10 parts ofa nucleating agent, the modified polyamide elastomer at least comprises two polyamide elastomers so that the regulated and controlled melt strength is more excellent, a series of shoe foaming materials with higher foaming ratios and better elasticity are prepared through a supercritical fluid foaming technology, the foaming material has the advantages of low density, excellent resilience, excellent deformation resistance and the like, meanwhile, the material is applied to the field of sneakers, a force feedback mechanism is started for the whole running process, energy in each step of a weareris recycled and then released again, the light and efficient resilience property is guaranteed, and power can be provided for the wearer.

The invention discloses a gas-liquid mixing device. The gas -liquid mixing device comprises a gas inlet, a liquid inlet and a mixed solution outlet, wherein the gas inlet and the mixed solution outlet are formed in the same axial line, a combining part of the gas inlet and the mixed solution outlet is an annular nozzle, an included angle alpha formed by the annular nozzle is 45-80 degrees, an annular liquid cavity is arranged at the inlet end of the annular nozzle in a surrounding manner and is connected with the liquid inlet; the annular nozzle can be opened or closed, the width of the annular nozzle can be adjusted; the liquid inlet is formed along a radial direction or a tangent direction of the annular liquid cavity. The gas-liquid mixing device has the advantages that a conventional mixing structure is changed, the spraying is performed by adopting the annular nozzle with a certain slope as a liquid outlet, a negative pressure higher than that of a conventional nozzle can be generated, more gas is sucked, relatively high foam expansion ratio is generated, fluid flows without resistance, the device has no recoiling force, and is relatively long in spraying distance; the mixed solution outlet can be adjusted, and even closed, so that the liquid flow is adjusted; the gas-liquid mixing device is simple in structure, convenient to operate; the cost of system equipment is lowered.

The invention discloses a mining foam generator for preventing and extinguishing fire. The foam generator is characterized in that a Venturi tube is (2) is arranged in a foaming cylinder (1), a liquid pipeline (4) penetrates the wall of the foaming cylinder to extend into the Venturi tube, an atomizing nozzle (3) is arranged at the throat of the Venturi tube and connected to the extending end of the liquid pipeline, the other end of the liquid pipeline is connected with a foaming agent container (6), a pump (5) is mounted on the liquid pipeline, a gas nozzle (10) is arranged at the rear of the atomizing nozzle and connected with an air compressor (7) through a gas inlet pipeline (9), a first foaming screen (11) is disposed at the front end of the Venturi tube, an impeller (13) is disposed in front of the first foaming screen and rotationally connected with an impeller support (14) which is fixedly connected with the wall of the foaming cylinder, and a second foaming screen (12) is fixed at the front end of the impeller support. The mining foam generator is small in size, simple in structure and high in foaming efficiency, the generated foam is fine, even and high in stability, and fire extinguishing effect is increased.

The invention discloses a formula and a preparation method for non-toxic and environment-friendly polyvinyl chloride high-foaming glue for bottle caps. In the formula, the foaming glue comprises the following components in part by weight: 90 to 100 parts of polyvinyl chloride resin, 60 to 70 parts of acetyl tributyl citrate, 1.8 to 2.4 parts of foaming agent, 0.6 to 1 part of dimethyl silicon oiland 10 to 30 parts of heavy calcium carbonate. In the formula, by regulating and controlling the plasticizing action of polyvinyl chloride (PVC) sealant strictly, the plasticizing action of the PVC sealant is matched with the decomposition temperature of the foaming agent, so the prepared PVC high foaming glue is high in foaming magnification, uniform in foaming density, appropriate in softness and hardness and good in a sealing effect, and basically reaches the performance of conventional sealing gaskets in which azodicarbonamide is taken as the foaming agent. The high-foaming glue is non-toxic, low in production cost, easy to produce and good in a using effect.

The invention discloses a method for preparing thermoplastic elastomer foamed beads. According to the method, carbon dioxide and nitrogen mixed gas can be retained inside foamed bead bubbles, so that volume shrinkage of the foamed bead bubbles in the air exchange process is inhibited, and large expansion ratio is maintained. The method includes the steps: dipping thermoplastic elastomer beads in high-pressure nitrogen atmosphere at normal temperature; placing the thermoplastic elastomer beads sufficiently absorbing nitrogen in carbon dioxide in a super-critical state, performing swelling diffusion and inducing the thermoplastic elastomer beads dissolving the nitrogen and the carbon dioxide to expand in a foaming manner to prepare the thermoplastic elastomer foamed beads. The nitrogen and carbon dioxide mixed gas is retained inside the thermoplastic elastomer foamed beads, a bubble structure is supported by nitrogen molecules in the bubbles in the process of gas exchange with external air in a natural environment, and high product foaming ratio is maintained.

The invention provides a sasanqua saponin concrete air entraining agent and a preparation method thereof. The air entraining agent is characterized by containing sasanqua saponin therein. The preparation method is characterized by extracting sasanqua as a raw material at normal temperature by hydrophilic solvent water solution, and filtering; removing large-molecule impurities from the filtrate by membrane separation under pressure, removing small-molecule impurities by membrane separation, concentrating to be concentrate with Baume degree of not lower than 10Be (60 DEG C), and spray-drying to form solid formulation; or adding a modifying agent to prepare the air entraining agent in liquid formulation. The idea is novel, the raw materials are abundant, the production efficiency is high, the energy consumption in the production is low, the production cost is low, the preparation method is simple in process, green and environment-friendly and is convenient to implement; when the air entraining agent is used in concrete engineering, the dosage of the air entraining agent is low, the air production rate is high, the aperture of the entrained air bubbles is small and the distance among the entrained air bubbles is small, and the air holes of the concrete are more even, more compact and non-communicated, therefore, the sasanqua saponin concrete air entraining agent is valuable for popularizing.

The invention discloses foam concrete containing recycled inorganic lightweight aggregate. The foam concrete is prepared from 20-60 parts of cement, 20-60 parts of slag, 0-50 parts of sand, 0.5-3 parts of a water reducer, 0.1-3 parts of fibers, 25-60 parts of water, foam with the addition amount accounting for 1-80% of the total volume of the foam concrete and the recycled inorganic lightweight aggregate with the addition amount accounting for 1-80% of the total volume of the foam concrete, wherein the recycled inorganic lightweight aggregate is obtained by smashing, screening and grading one or more inorganic heat insulation building materials including but not limited to aerated concrete, foam concrete, foamed ceramic and foamed glass. The invention further discloses a preparation method of the foam concrete. The foam concrete containing the recycled inorganic lightweight aggregate has the advantages of being high in strength, small in shrink, free of formwork collapse, good in fluidity, homogeneous, low in cost and the like and is especially suitable for cast-in-situ lightweight walls, roofs, lightweight cement product elements and the like.

The invention relates to a camellia saponin type oilfield foaming agent and a preparation method and application thereof. The oilfield foaming agent comprises the following components in part by mass: 100 parts of camellia saponin based on the solid content, 1 to 10 parts of cocoanut oil diethanol amide, 1 to 10 parts of amine ether alkyl glucoside, 1 to 10 parts of dodecyl betaine, and 0.5 to 2 parts of lauryl dimethy amine oxide, wherein the camellia saponin is natural plant source camellia saponin or structure-modified camellia saponin. The camellia saponin type oilfield foaming agent is used as an oilfield foaming agent in oil recovery, has the characteristics of acid, alkali and salt resistance, temperature resistance, high foam expansion ratio, long stable foam time and the like, can meet oil extraction requirements under different geological and weather conditions, cannot pollute an oilfield soil layer employing the foaming agent, can prevent a chemically synthesized foaming agent from harming the oilfield stratum, and has remarkable environmental protection characteristic.

The invention discloses a device for preventing coal from burning spontaneously and rapidly extinguishing under a coal mine and a working method thereof. The device comprises a cylindrical foamed shell of which the two ends contract, wherein one end of the foamed shell is connected with a compressed air line; one side of the compressed air line is provided with a foam stock solution inlet; the other end of the foamed shell is connected with a foam output pipeline; 6-8 groups of spiral blades are arranged on a hollow shaft of an axis in the foamed shell at certain intervals; air outlet holes are formed among the spiral blades; included angles between the turning directions of the spiral blades and the axial direction of the hollow shaft are 45-60 degrees; each group of spiral blades has the same turning direction; and two adjacent groups of spiral blades have opposite turning directions. A mixture is foamed twice, so that the foaming times are raised to 50-150 times rapidly within a short period of time, and the aims of preventing and controlling spontaneous turning of coal and rapidly extinguishing are fulfilled.

The invention discloses structural modification type cameclia oleifera saponin, which is prepared by the following method: stirring cameclia oleifera saponin and normal butanol at room temperature and carrying out an esterification reaction under the action of 4-dmethylamino pyridine as a catalyst and N-dicyclohexylcarbodiimide as a dehydrating agent; tracking and detecting to complete reaction; adding fatty alcohol and stirring at room temperature and reacting for 2-5 hours; heating to 70-100DEG C; controlling the reaction pressure to be 0.005-0.015MPa; stirring and carrying out an ester exchange reaction, tracking and detecting to complete reaction; filtering reaction liquid; washing filtrate B; drying and then filtering an organic layer to obtain filtrate C; carrying out reduced pressure distillation to recover the normal butanol; and obtaining a remainder which is the structural modification type cameclia oleifera saponin. The structural modification type cameclia oleifera saponinhas the characteristics of high foaming multiplying power, long foam stabilizing time and the like and can be used as a matrix raw material of an oil filed foaming agent; and the oil filed foaming agent synthesized by matching and optimizing has the performances of resisting acid, alkali, temperature and salt and capability of meeting the oil extracting requirements under different conditions.

The invention discloses an environmental protection high efficiency foaming agent for shield construction. The foaming agent comprises the following components in percentage by weight: 5 to 20 percent of aliphatic alcohol polyethenoxy ether sulfate, 1 to 8 percent of alcohol amide, 0.5 to 8 percent of alcohol ether, and 64 to 93.5 percent of water. The foaming agent for shield construction has a high foaming ratio and produces abundant and fine foams with even diameter distribution. The produced bubbles have small pores, good lubricity and stability, simple production operation, and lower cost. The foaming agent can better meet the requirements of the slag soil improvement during the process of earth pressure balanced shield.

The invention discloses a natural tea saponin foaming agent, which is characterized by comprising the following components in percentage by mass: 50-70% of tea saponin, 0.01-2% of a preservative, 1-20% of a surfactant, 5-20% of a foam stabilizer, and the balance of water. The foaming agent is non-perishable, and stable and reliable in foaming performance, and has good economic and social benefits.

The invention discloses a seawater-resistant insoluble aqueous film-forming foam extinguishing agent and a preparation method thereof. The extinguishing agent comprises the following components in parts by weight: 300-400 parts of deionized water, 6-10 parts of sodium benzoate, 20-80 parts of urea, 5-9 parts of xanthan gum, 100-400 parts of Cocamidopropyl betaine, 20-60 parts of APG, 80-200 parts of ethylene glycol, 20-60 parts of ethylene glycol monobutyl ether, 10-50 parts of F1157, 10-50 parts of F1203, 10-60 parts of F1460 and 20-60 parts of a buffer agent. The seawater-resistant insoluble aqueous film-forming foam extinguishing agent is used for being mixed with seawater for fire extinguishing and has the advantages of low viscosity, high fire-extinguishing speed, high expansion rate, stable property, long storage time and the like.

The invention provides a preparation method of isocyanate-based polyimide foam. The preparation method comprises that 1, polybasic aromatic anhydride is heated and dissolved in a polar solvent and undergoes a reaction with fatty alcohol to produce a polybasic aromatic anhydride derivative solution, 2, the polybasic aromatic anhydride derivative solution and a foam stabilizer are blended to form a white material, 3, polybasic aromatic anhydride and isocyanate undergo a reaction to produce a black material, 4, the foaming white material is immediately poured into the foaming black material at a room temperature under normal pressure, and the mixture is uniformly stirred, then is fast poured into a mold and is subjected to free foaming molding to form a foam intermediate and 5, the foam intermediate is heated and cured to form the isocyanate-based polyimide foam. The preparation method inhibits production of an amino group and an isocyanate group in foam material preparation, reduces a polyurea generation amount and improves isocyanate-based polyimide foam heat resistance, heat stability and flame resistance. The preparation method has the advantages of simple processes, excellent product comprehensive properties, and industrial production and wide application feasibility.

The invention discloses an expandable polystyrene product and a production method thereof. The expandable polystyrene product is made by processing the following ingredients in parts by weight: 100 parts of styrene, 110 to 150 parts of water, 0.25 to 0.5 part of evocating agent A: BPO, 0.04 to 0.1 part of evocating agent B: CP-02, 7 to 10 parts of vesicant: pentane, 0.05 to 0.15 part of dispersant: TCP, 0.05 to 0.2 part of suspending agent: polyethylene wax and 0 to 0.01 part of emulsifier: GMS, and the ingredients react and are evocated as per certain sequence at rated temperature by stages. Compared with the prior art, the product has uniform particle size distribution, high foaming multiplying factor (no less than 90), favorable elasticity, stable quality, high yield rate and favorable comprehensive economic and technical norms, and the production method of the product has little pollution on environment.

The invention discloses a PVC foaming coating. The PVC foaming coating comprises, by weight, 330-350 parts of environmentally-friendly plasticizer, 360-390 parts of PVC paste resin, 15-18 parts of liquid stabilizer, 20-22 parts of AC foaming agent, 20-22 parts of microsphere foaming agent, 75-80 parts of titanium dioxide, 250-275 parts of ground calcium carbonate and 30-33 parts of matting agent. By means of the potassium/zinc liquid stabilizer, the AC foaming agent and the microsphere foaming agent, the foaming function of the PVC foaming coating can be effectively improved, the foaming ratio of PVC foaming wallpaper can be improved, and satisfactory foaming quality can be obtained.

The invention discloses a super-light plastic formula for sports shoe soles, and the formula comprises the following components in parts by weight: 59-69 parts by weight of ethylene-vinyl acetate copolymer, 11-21 parts by weight of polyolefin elastomer, 5-15 parts by weight of metallocene polyethylene, 5-15 parts by weight of acidic ethylene copolymer, 6-8 parts by weight of talc powder, 0.7-1.0 part by weight of zinc oxide, 0.5-0.8 part by weight of stearic acid, 0.6-1.0 part by weight of zinc stearate, 0.5-0.8 part by weight of flowable agent A, 0.3-0.6 part by weight of accelerated bridging agent, 0.25-0.5 part by weight of bridging agent and 4.8-5.4 parts by weight of foaming agent. Plastic soles of sports shoes produced by the technical scheme have super-light performance and the comfort which are unmatched by the ordinary plastic formula, have durable comfort, durable damping performance and other performances and can greatly reduce the consumption of physical strength of athletes.

The invention provides an intermittent vulcanized latex sponge mattress production technology which is capable of improving bearing performance and comfort by vulcanizing and ripening latex and auxiliaries before foaming. The intermittent vulcanized latex sponge mattress production technology includes the steps of 1), grinding and refining raw materials; 2), using a compounding system for automatically compounding according to a formula, wherein the raw materials comprise, by weight, 80-100 parts of natural rubber, 0-20 parts of rubber polymer, 3-10 parts of vulcanizing agent, 1-8 parts of activator, 0.5-6 parts of emulsifying agent, 1-5 parts of accelerant and 0.5-5 parts of gels; 3), mixing and prevulcanization; 4), adding a hardening agent, foaming by a foaming machine, conducting injection molding and surface setting; 5), using a vulcanizing device for vulcanizing, washing with water after vulcanizing, cooling, drying and punching; 6), cutting and winding so as to obtain a sponge mattress. The sponge mattress produced according to the technology has the advantages of high elasticity, shock absorption, good bearing performance and excellent comfort and durability.