47results about How to "Low foaming rate" patented technology

The invention provides a drilling fluid lubricant prepared from waste plant oil and a preparation method thereof. The lubricant is composed of the following raw materials in parts by weight: 70 to 80 parts of waste plant oil, 10 to 20 pats of lower alcohols, 1 to 5 parts of surfactant, and 1 to 5 parts of high temperature resistant processing agent. The preparation method comprises the following steps: step a, carrying out a pretreatment on raw materials: removing impurities from waste plant oil; step b, carrying out esterification conversion: adding lower alcohols and the waste plant oil preprocessed in step a into a reactor with / without a catalyst to carry out esterification reactions or ester exchange reactions, wherein the reaction temperature is 60 to 120 DEG C, and the reaction time is 3 to 8 hours; step c, refining and separating the reaction products: precipitating and separating the reaction products obtained in the step b, and then refining the reaction products to obtain a refined product; step d, carrying out performance improvement: adding the surfactant and the high temperature resistant processing agent so as to obtain a finished product.

This invention relates to a large densed zircon overflow bricks containing TiO2 weighting 0.2-1.2% characterizing that the large densed zircon overflow brick is 1500-3100mm long, 100-600mm thick and 600-1000mm wide, which applies vacuumization first and molding later and rising and lowering the temperature slowly thus to overcome crack during the process of producing said bricks and produce overflow bricks used in the production system of liquid crystal glasses.

A flight vehicle radome according to the present invention has a shape that covers radio equipment installed in a flight vehicle. The flight vehicle radome is formed of a sandwich panel structure in which a core member (30) resulting from foaming and compositing of a heat-resistant resin (32) and insulating reinforcing fibers (31) is sandwiched between skin members (20) made of a fiber reinforced material being a composite of quartz cloth (20) and a heat-resistant resin (22).

The invention discloses a full biodegradable heat-resistant polylactic acid foaming material and a preparation method thereof. The full biodegradable heat-resistant polylactic acid foaming material consists of the following ingredients by weight percent: 90 to 95 percent of polylactic acid, 1 to 5 percent of PBAT resin, 0.1 to 3 percent of chain expander, 0.1 to 5 percent of nucleating agent and 0.1 to 3 percent of foaming additive. By adopting the foaming material, a continuous foaming technology can be realized, and a prepared foamed product has advantages of uniform size of bubbles and high rate of closed holes; moreover, the advantage of the polylactic acid biodegradation is maintained, the development requirement of the environment-friendly low-carbon sustainable economy can be completely met, and the full biodegradable heat-resistant polylactic acid foaming material has wide application market in the fields such as disposable lunch boxes, snack boxes, hamburger boxes, instant noodles bowels and packaging. The preparation method comprises the following steps: first drying polylactic acid, cooling polylactic acid, then adding other components, and uniformly mixing; then melting and blending the mixture in a dual-screw extruder, drawing bars, cooling the bars by air and cutting the bars into particles. The preparation method is simple, easy to control and implement, high in operability and easy in industrialized production.

The invention discloses a high polymer grouting reinforcement material which comprises a component A and a component B. The component A comprises 100-120 parts of isocyanate, 3-5 parts of plasticizers, 0.5-1.5 parts of glycerol and 0.4-1.0 part of foam stabilizers. The component B comprises 60-70 parts of polymer polyol, 25-45 parts of inert diluents, 20-30 parts of flame retardants and 0.5-1.0 part of catalysts. The high polymer grouting reinforcement material is high in curing reaction speed, adjustable in curing time and low in curing reaction heat release, the possibility of smoldering and explosion of cured coal and rock masses can be greatly reduced when the high polymer grouting reinforcement material is applied to coal mine grouting reinforcement, foaming rate is low, foam is uniformly distributed, solids can reach 45-60MPa, engineering construction requirements are completely met, and engineering safety is guaranteed. Preparation steps are simple, operation is facilitated, and practicability is high.

The invention discloses a gas extracting drilling solid-liquid two-phase hole sealing device. The gas extracting drilling solid-liquid two-phase hole sealing device comprises a first capsule bag, a second capsule bag, a third capsule bag, a primary grouting pipe and a secondary grouting pipe, a first hole sealing section is arranged between the first capsule bag and the second capsule bag, and a second hole sealing section is arranged between the second capsule bag and the third capsule bag; and an explosive valve located in the first hole sealing section is formed in the primary grouting pipe, the other end of the secondary grouting pipe is located in the second hole sealing section, and is in communication with the second hole sealing section through a second one-way valve. The inventiondiscloses a gas extracting drilling solid-liquid two-phase hole sealing technology at the same time, a network is connected to perform extracting after the first hole sealing section is subjected tosolid-phase hole sealing, periodic detection of gas extracting concentration is carried out to an extracting drilling hole of which the solid-phase extracting is completed, liquid-phase sealing of thesecond hole sealing section is perform on an extracting drilling hole with gas leakage, and then extracting can be continued. According to the gas extracting drilling solid-liquid two-phase hole sealing device and technology, liquid-phase hole sealing operation can be carried out to an extracting drilling hole with poor hole sealing and the gas leakage, periodic maintenance can be carried out tothe liquid sealing effect, and extracting drilling hole is prevented from densified cumbersome construction.

A microcellular thermoplastic polyurethane foamed sheet with a high foaming ratio includes components of: TPU with 70˜100 parts by weight, and polydimethylsiloxane with 0˜30 parts by weight. The present disclosure has the following advantages: because the supercritical fluid has a relatively high solubility in the polydimethylsiloxane while the polydimethylsiloxane has a relatively low interfacial tension, mixing a small amount of polydimethylsiloxane into the TPU significantly facilitates the diffusion speed of the supercritical fluid in the TPU and shortens the diffusion equilibrium time of the supercritical fluid in the TPU. In addition, a method of manufacturing a microcellular thermoplastic polyurethane foamed sheet with a high foaming ratio is further provided.

The invention provides an environmental-friendly organic silicon water blocking prevention agent for a drilling fluid and a preparation method and application thereof. The organic silicon water blocking prevention agent comprises a hydrophobic group and a hydrophilic group, wherein the hydrophobic group is a polymethyl hydrosiloxane chain; the hydrophilic group is a sulfonic acid group and hydroxyl. The organic silicon water blocking prevention agent is prepared from methylsiloxane and vinyl siloxane through hydrolytic condensation reactions and grafting reactions with sulfonic acid group monomers. By adopting the organic silicon water blocking prevention agent provided by the invention, surface tension can be relatively well reduced, water wetting on the surfaces of pores can be turned into vapor wetting, flow-back of filtrate can be improved, gas permeability can be improved, and water blocking damage caused by a reservoir can be remarkably reduced; in addition, the organic silicon water blocking prevention agent is low in foaming rate, good in foam inhibition and elimination property, easy in preparation raw material obtaining, safe and feasible in reaction condition and easy inindustrial production.

The invention discloses a processing method of dry lily pieces. The processing method disclosed by the invention has the advantages that a far-infrared drying box is adopted for drying boiled lily pieces in the processing process, the phenomenon that the lily pieces are browned and blackened in the processing and drying processes is overcome, the processed lily pieces are low in foaming rate, naturally milk-white in color and high in drying efficiency, the production cost is greatly reduced and the original flavor of the lily is guaranteed.

The invention discloses a fully biodegradable heat-resistant polylactic acid foaming material and a preparation method thereof, comprising 85-90% by weight of polylactic acid, 1-10% of PBAT resin, 0.1-3% of a chain extender, and 0.1% of a nucleating agent. ~5%, 0.1~5% foaming aid. Continuous foaming technology can be realized by using this foaming material. The prepared foamed product has the advantages of uniform cell size and high closed cell rate, and maintains the advantages of polylactic acid biodegradation, which is fully in line with the development of green, low-carbon and sustainable economy. It has a broad application market in the field of disposable lunch boxes, fast food boxes and hamburger boxes, instant noodle bowls and packaging. The preparation method of the present invention: first dry the polylactic acid, add other components after cooling and mix uniformly; then add it to a twin-screw extruder for melt blending, and then pull strands, air-cool, and pelletize to obtain. The preparation method is simple, easy to control and implement, strong in operability, and easy to industrialized production.

The invention aims to provide a high-performance polyether ether ketone foamed material with high-temperature resistance, corrosion resistance and high mechanical strength. The polyether ether ketonefoamed material comprises the following raw materials in parts by mass: 85-95 parts of polyether ether ketone granules, 3-6 parts of foaming agents and 3-8 parts of nucleating agents, wherein the foaming agents are supercritical carbon dioxide and phenyl tetrazole, and the nucleating agents are polyimide, aluminum oxide and silicon dioxide. The preparation method provided by the invention is simple, the production period is short, the production efficiency is high, and the preparation method can be used for large-scale commercial production; the glass transition temperature and the melting temperature of the prepared polyether ether ketone foamed material have little difference with the glass transition temperature and the melting temperature of unformed polyether ether ketone resin, but through the introduction of a microporous structure, the weight of the prepared polyether ether ketone foamed material is reduced by 15-35%, so that the raw material consumption can be reduced, the product weight can be reduced, and the cost is saved; the foamed material provided by the invention has the performance of high-temperature resistance, corrosion resistance, high mechanical strength andthe like, and thus can be applied to the fields such as national defense, military industry, aerospace and the like which have harsh use environments,.

The invention relates to the field of shale brick production equipment, and particularly relates to a shale crusher dust collector. The shale crusher dust collector comprises a dust collecting disc, a negative-pressure fan, a cyclone dust collector and a tailing collecting tank, wherein the dust collecting disc is arranged on the upper edge of a crusher feeding opening; the dust collecting disc is provided with a circle of dust collecting holes with the diameters of 2-5mm; the dust collecting disc is connected with an inlet of the cyclone dust collector via a dust collecting pipe; the negative-pressure fan is arranged on the dust collecting pipe; the bottom of the cyclone dust collector is connected with a fine material collecting tank, and the top of the cyclone dust collector is provided with a tailing pipe; the tailing pipe leads to the tailing collecting tank filled with water; the end part of the tailing pipe is arranged into a flat pipe. The shale crusher dust collector has the beneficial effects that by the negative-pressure effect of the dust collecting disc, raise dust in the crusher fully enters the dust collecting disc, and the dust is collected and treated; moreover, the scheme is simple in structure, and is easy to realize.

The invention discloses a low toxicity, low foam, and oil based slurry washing agent for well cementing. The slurry washing agent is mainly prepared from following raw materials in parts by weight: 45to 70 parts of basic oil, 5 to 10 parts of soybean oil fatty acid, and 20 to 30 parts of anacardol surfactant; wherein the anacardol surfactant comprises two anacardol surfactants with different HLBvalues: an anacardol surfactant with an HLB value of 8-9 and an anacardol surfactant with an HLB value of 10-12. The washing agent has a very good flushing effect on oil based slurry and mud cakes. The washing agent can be made into washing solutions with different concentrations and the foaming rate is extremely low. The experiment results show that when the addition amount of the washing agent is 20%, the foaming rate is less than 10%; the washing solution with 10 wt% of the washing agent has maximal washing efficiency close to 98%on a simulated borehole wall, and after washing, the direct cementing degree between the simulated borehole wall and cement paste is high.

The invention discloses a high-performance structural adhesive as well as a preparation method and a construction method thereof. The preparation method comprises the following steps of: mixing and stirring 100 parts of E-44 epoxy resin, 5-30 parts of a mixed solution of potassium silicate and sodium silicate, 20-180 parts of silica powder, 5-30 parts of nano calcium carbonate and 1-4 parts of micron carbon fibers to prepare a mixture A; mixing and stirring 20 parts of polyamide, 30 parts of aromatic amine, 20-60 parts of silica powder, and 1-2 parts of micron carbon fibers to obtain a mixtureB; selecting the mixture A and the mixture B according to the mass ratio of 2: 1, mixing and stirring the selected mixture A and mixture B, and putting an obtained mixture into a closed container soas to subject the mixture to vacuum-pumping and bubble-removing treatment to obtain the high-performance structural adhesive. The high-performance structural adhesive has the advantages of high bonding strength, good weather resistance and durability, few bubbles, excellent waterproof and anti-corrosion effects, high liquidity, environmental friendliness, convenience in construction and the like,has good market prospects and is suitable for popularization.

The invention relates to a soymilk and a preparation method thereof, and belongs to the field of food processing technology. The soymilk comprises the following raw materials in parts by weight: 60-70 parts of soybeans, 30-40 parts of edible sugar, 2-3 parts of edible acid, 30-40 parts of fruit concentrates, 3-4 parts of an opacifier, 2-3 parts of an acidity regulator, 0.5-1 part of edible essence, 0.01-0.05 part of an edible sweetening agent, 0.1-0.5 part of an antioxidant, 0.3-0.6 part of a thickening agent and the balance of water; the total amount reaches 1000 parts. According to the invention, the soymilk has the following benefits: the prepared soymilk is fragrant, pure and mild in taste, and smooth but not greasy, and has very high nutrition value.

The invention discloses a slow injection and pressurization pressure-casting process. An automobile braking system support is obtained through carrying out pressure casting molding on aluminum alloy 356.2 serving as a raw material. Pressure casting comprises the following steps of 1) a low-speed step: completely carrying out pressure feeding on molten aluminum in a melting cup at low speed by using a punching head to fill a mold cavity; 2) a pressurization step: pushing the molten aluminum at low speed to fill the mold cavity, solidifying and starting a pressurization force; and 3) pressure injection molding: finishing pressure injection for a period of time which is at least two times as long as the time for traditional pressure injection. By using the slow injection and pressurization pressure-casting process, the normal and smooth production is ensured, and air holes inside workpieces are reduced to be within 3 levels; and meanwhile, the surface blistering rate of T4 or T6 thermal treatment is reduced to be within 5%.

The invention discloses an attaching structure and attaching method of a display module. Theattaching structure comprises liquid crystal glass, an upper polaroid, a lower polaroid, a first OCA adhesive layer, a second OCA layer and a cover plate; a blind hole is formed in the liquid crystal glass; the edge of the blind hole is provided with a circle of shading region; the upper polaroid and the lower polaroid are respectively arranged above and below the liquid crystal glass; the upper polaroid and the lower polaroid are respectively provided with a first through hole and a second through holecorresponding to the blind hole; the vertical projections of the hole edges of the first through hole and the second through hole fall onto the shading region; the first OCA layer is arranged above the upper polaroid; the second OCA layer is attached to the liquid crystal glass and fills the first through hole; and the cover plate is arranged above the first OCA layer. According to the attachingmethod of the display module, common OCA is adopted for attaching, the second OCA layer is attached to the interior of the first through hole of the upper polaroid in advance, the volume of attachingbubbles is reduced, the foaming rate is greatly reduced, the production process is simple, the production process is short, and the yield is greatly increased.

The invention relates to an organic, heat-insulating and flame-retardant material. The organic, heat-insulating and flame-retardant material comprises flame-retardant layers and heat-insulating layers, wherein first-stage heat-insulating layers are filled between first-stage flame-retardant layers and second-stage flame-retardant layers, a second-stage heat-insulating layer is filled in the second-stage flame-retardant layers, the heat-insulating layers are made from a heat-insulating material, a flame retardant is attached to the surfaces of the flame-retardant layers, and the heat-insulating material is prepared from EPS (Expandable Polystyrene), HIPS (High Impact Polystyrene), GPS (General Polystyrene) and PP (Polypropylene). According to the organic, heat-insulating and flame-retardant material, the foaming rate is low, the heat-insulating effect is strong, and the coefficient of heat conductivity is small; the heat-insulating material adopted by the organic, heat-insulating and flame-retardant material can be obtained through recovering polystyrene materials, so that polystyrene is recycled, and the pollution to environment is reduced.

The invention discloses fried sesame slices and a production method of the fried sesame slices. The method includes the following steps: step 1, making dough into small dough bodies with a dough rounder and a dough divider after making the dough from raw materials proportioned by weight with a dough maker, step 2, covering the small dough bodies with fermentation cloth to ferment the small dough bodies, step 3, pressing the small dough bodies into dough pieces with a dough presser, step 4, drying the dough pieces with a roaster, step 5, heating camellia oil with a fryer to fry the dry dough pieces, step 6, scooping up the dough pieces when both faces of the dough pieces become golden yellow through frying, step 7, obtaining a fried sesame slice product when the dough pieces are naturally cooled, and step 8, packing the fried sesame slice product in a sealing mode or storing the fried sesame slice product in a sealed container. According to the fried sesame slices and the production method of the fried sesame slices, reasonable raw material types and proportions and the reasonable thickness and diameter of the dough pieces are developed, the proportion range and specification are clear and definite, the scientific and reasonable production method is used, and therefore industrial production of the fried sesame slices is realized; the fried sesame slice product which is high in quality, novel in taste, rich in nutrition and beneficial to human health is obtained.

In order to prevent foaming ratio from being degraded, there is provided a high expansion foam fire-extinguishing system (B) including: a foam generator body (1) formed to a tubular shape; a foam forming screen (2) arranged at a distal end (1a) side of the foam generator body (1); an emission nozzle (3) arranged at a back end (1b) side of an interior of the foam generator body, for radiating a foam solution (W) in an emission pattern (WP) that spreads in a conical shape towards the foam forming screen (2); and an intermediate screen (4) arranged between the foam forming screen (2) and the emission nozzle (3), in which the intermediate screen (4) is arranged in a liquid droplet speed regulating region from a landing position (P0) at which an outer periphery of the emission pattern (WP) hits an inner wall (1f) of the foam generator body to a limit position (P1) at which liquid droplets can pass through a mesh of the intermediate screen (4).

The invention provides an environment-friendly water-based paint and a preparation method thereof. The environment-friendly water-based paint comprises the following components in parts by weight: 15-25 parts of water, 10-20 parts of hydroxy acrylic resin, 7-12 parts of organic silicon modified polysiloxane emulsion, 10-15 parts of pigment, 5-7 parts of a dispersing agent, 2-4 parts of a de-foaming agent and 1-3 parts of a flatting agent. The preparation method comprises the following steps: adding water, hydroxy acrylic resin and organic silicon modified polysiloxane emulsion into a stirrer and stirring, thereby acquiring a mixed solution; adding pigment and the dispersing agent into the mixed solution in turn, and continuing to stir, thereby acquiring a mixed slurry; grinding the slurrytill the fineness of the mixed slurry is controlled within 20-30mum, thereby acquiring a ground material; putting the ground material into a paint mixing tank, adding the de-foaming agent and the flatting agent in turn, and stirring, thereby acquiring the environment-friendly water-based paint. The environment-friendly water-based paint provided by the invention has the advantages that the surfacetension of the water-based paint in water is greatly reduced, the adhesive force of water-based paint coating to the substrate is enhanced, shrinking cavities are difficult to form on the coating, the surface evenness of the coating is improved and the stain resistance of the coating is greatly enhanced.

The invention provides a water blocking prevention agent based on anion-cation pair effect, which is composed of an anion-cation pair surfactant composition, a zwitterionic surfactant, short-chain alcohol, a defoaming agent and water, and the anion-cation pair surfactant composition is compounded by an anionic surfactant and a cationic fluorocarbon surfactant. According to the present invention, by using the action of the anion-cation pair between the anionic surfactant and the cationic fluorocarbon surfactant, the system has low surface / interface tension performance, the interface tension reaches 10 <-3 > mN / m, the minimum surface tension reaches 18 mN / m, and the water blocking prevention agent further can improve the wettability of the stratum surface to the hydrophobic and oleophobic amphiphobic direction, such that the water blocking prevention effect is significantly improved, and the water blocking prevention effect is significantly improved. Filtrate flowback can be effectively increased, the gas / oil phase permeability is improved, and the water blocking damage of a reservoir is remarkably reduced. The foaming rate of the water blocking preventing agent is low and is smaller than 10%, and the water blocking preventing agent can meet the use requirements of operations such as oil field drilling, well completion, well repair, water injection and recovery efficiency improvement.

In order to prevent foaming ratio from being degraded, there is provided a high expansion foam fire-extinguishing system (B) including: a foam generator body (1) formed to a tubular shape; a foam forming screen (2) arranged at a distal end (1a) side of the foam generator body (1); an emission nozzle (3) arranged at a back end (1b) side of an interior of the foam generator body, for radiating a foam solution (W) in an emission pattern (WP) that spreads in a conical shape towards the foam forming screen (2); and an intermediate screen (4) arranged between the foam forming screen (2) and the emission nozzle (3), in which the intermediate screen (4) is arranged in a liquid droplet speed regulating region from a landing position (P0) at which an outer periphery of the emission pattern (WP) hits an inner wall (1f) of the foam generator body to a limit position (P1) at which liquid droplets can pass through a mesh of the intermediate screen (4).

The invention discloses a high-Mooney natural rubber foamed rubber compound and a preparation method thereof, and relates to the technical field of natural rubber foaming. The rubber compound comprises 100 parts of natural rubber, 10-15 parts of an active agent, 1.5-4.5 parts of an anti-aging agent, 20-40 parts of a softening agent, 1.5-4 parts of a vulcanizing agent, 3.5-5 parts of an accelerant,0.5-3 parts of a dispersing agent, 200-260 parts of a filler, 4-6 parts of a foaming agent and 2-4 parts of a foaming aid BK. The master batch is prepared by primary-stage mixing in an internal mixer, the foamed rubber compound is prepared in secondary stage vulcanizing; the existing natural rubber foamed rubber compound preparation process is simplified, the raw rubber plastication is omitted, the processing cost is reduced, the large-scale production in a modern mixing factory is facilitated, and moreover, the prepared foamed material has the characteristics of uniform pore size, good elasticity and high foaming ratio.

The invention provides a high-efficiency energy-saving rice vermicelli preparation method which comprises the following steps: (1) removing impurities from rice and whitening; (2) drily grinding part of rice into dry rice flour; (3) adding water into the rest of rice for soaking and then grinding into rice milk; (4) dewatering the rice milk to obtain wet rice flour; (5) mixing the dry rice flour, the wet rice flour and a texture modifying agent to obtain rice vermicelli; (6) leading in steam so as to gelatinize rice vermicelli; (7) extruding primarily steamed rice vermicelli into long strips, and then extruding the long strips to obtain rice vermicelli; (8) steaming the rice vermicelli to be gelatinized and then cutting into rice vermicelli blocks; (9) drying the rice vermicelli blocks until moisture content is below 13.0wt%; (10) packaging to obtain finished products. By combining wet grinding and dry grinding of the rice, the rice soaking and grinding time can be obviously shortened, the grinding energy consumption can be decreased, and the production efficiency of the rice vermicelli can be increased; by adopting a vacuum-hot air drying method, the drying time of the rice vermicelli can be shortened, and the crushed rice vermicelli rate, the rice vermicelli breakage rate and the bubbling rate of the rice vermicelli can be reduced.

The invention relates to a production method for a tea tree-flavor liquid detergent. The production method is characterized by comprising the following steps: 1) heating Chinese soapberry soap milk, adding washing soda and carrying out stirring until washing soda is completely dissolved; 2) adding salt, alcohol, cinnamon essential oil and tea tree essential oil and carrying out shaking up to prepare a stock solution for the liquid detergent; 3) mixing the stock solution for the liquid detergent with water according to a volume ratio of 1: 4; and 4) subjecting the blended tea tree-flavor liquid detergent to disinfection, filling and selling.

The present invention provides a dental gypsum or gypsum composition with low expansion ratio and high strength, its preparation process, use method and application. The invention uses green additives, has few additives, and has low production cost, and can simply and effectively reduce the expansion coefficient of general dental gypsum materials to a very low level. At the same time, it has comprehensive advantages such as strong operability, adjustable setting time, good mechanical properties, and stable curing performance, which better solves the difficulty of denture restoration in the oral cavity, poor adhesion, fulcrum, and insufficient retention force. Application problems such as long clinical adjustment time ensure the effect of denture restoration.

The invention discloses a low toxicity, low foam, and oil based slurry washing agent for well cementing. The slurry washing agent is mainly prepared from following raw materials in parts by weight: 45to 70 parts of basic oil, 5 to 10 parts of soybean oil fatty acid, and 20 to 30 parts of anacardol surfactant; wherein the anacardol surfactant comprises two anacardol surfactants with different HLBvalues: an anacardol surfactant with an HLB value of 8-9 and an anacardol surfactant with an HLB value of 10-12. The washing agent has a very good flushing effect on oil based slurry and mud cakes. The washing agent can be made into washing solutions with different concentrations and the foaming rate is extremely low. The experiment results show that when the addition amount of the washing agent is 20%, the foaming rate is less than 10%; the washing solution with 10 wt% of the washing agent has maximal washing efficiency close to 98%on a simulated borehole wall, and after washing, the direct cementing degree between the simulated borehole wall and cement paste is high.