3647results about How to "Prevent volatilization" patented technology

Disclosed are a low-dielectric-constant glass fiber having a glass composition comprising, by weight %, 50 to 60% of SiO2, 10 to 18% of Al2O3, 14% to less than 20% of B2O3, 1% to less than 6% of MgO, 2 to 5% of CaO, 0.5 to 5% of TiO2, 0 to 0.3% of Li2O, 0 to 0.3% of Na2O, 0 to 0.5% of K2O and 0 to 2% of F2, the content of MgO+CaO being 4 to 11% and the content of Li2O+Na2O+K2O being 0 to 0.6%, and a glass fiber fabric made of the low-dielectric-constant glass fiber. The glass fiber of the present invention has a low dielectric constant and a low dielectric tangent, is excellent in productivity and workability and is also excellent in water resistance, and the glass fiber is suitable for reinforcing printed wiring boards for high-density circuits.

A lubricating polyureas-composite calcium grease is prepared through proportionally mixing basic oil, calcium hydroxide (oxide), water and C1-C20 organic acid together, heating to 30-100 deg.C, adding diisocyanate and organic amine, draining water, saponifying, heating to 210-230 deg.C, cooling and homogenizing. Its advantages are high refractory performance, stability and extreme-pressure antiwear nature.

The invention discloses a solar water evaporation purification and decomposition device which comprises a water supply line, a float and heat insulation layer, an evaporation layer and a photothermalconversion and solute barrier layer which are connected in sequence from bottom to top. The water supply line enables water to pass through the float and heat insulation layer, and the water is pumpedinto the evaporation layer by virtue of a capillary action; solar energy absorbed by the photothermal conversion and solute barrier layer is converted into heat, and water is heated to be vaporized into water vapor from the evaporation layer; due to pore channel volatilization of the photothermal conversion and solute barrier layer, partial water vapor is decomposed to produce hydrogen and oxygen; since the photothermal conversion and solute barrier layer contains a hydrophobic part and is not infiltrated by water, the solar energy can directly heat a heat-absorbing material only, but not heat water, so that high photothermal conversion efficiency is realized; and meanwhile, the solute in the water is prevented from being separated out on the membrane, and sea water desalination, sewage purification and water decomposition can be realized. Due to the design of a hydrophilic / hydrophobic double-layer evaporation structure, the solar water evaporation purification and decomposition device with high photothermal conversion efficiency and high stability is obtained.

The invention provides a method for preparing synthetic leather and the synthetic leather prepared by the method. The method comprises the following steps: (1) coating slurry containing surface waterborne polyurethane resin on the surface of release paper, and drying to form a finishing coat; (2) mixing and foaming the slurry containing the foaming waterborne polyurethane resin with air by using a foaming machine, and coating the foamed slurry on the surface of the finishing layer, and drying to form a medium foaming layer; and (3) adhering the surface of the foaming layer and a basic fabric by using an adhesive containing waterborne polyurethane resin, and drying. The method uses the waterborne resin foaming layer to replace the Base leather manufacturing process, avoids using toxic and harmful organic solvents, such as dimetbyl formamide (DMF), toluene and the like, solves the pollution problem in the synthetic leather industry, and realizes clean manufacture of the synthetic leather.

The invention discloses alcohol-free fountain solution with high viscosity and low surface tension. The alcohol free fountain solution with high viscosity and low surface tension comprises the following components by weight, 30-55 parts of alcohol solvents, 2-6 parts of buffer agents, 3-8 parts of wetting agents, 1-4 parts of surface active agents, 0.3-2.2 parts of antifoaming agents, 0.5-3 parts of thickening agents, 0.5-1.2 parts of anticorrosion and bactericidal agents, 1-3 parts of penetrating agents, 0-2 parts of electrolyte and 20-45 parts of viscosity modifier water. The fountain solution is free of volatile solvents containing alcohol and isopropyl alcohol and pollution to the environment, the surface tension ranges from 4*10-2N / m to 7*10-2N / m, pH ranges from 4.8 to 5.5, the heat conduction rate ranges from 800mus / cm to 1200mus / cm, and therefore, quality requirements of the fountain solution can be met better.

The invention provides a granular pesticide fertilizer, and a preparation method and application thereof. The granular pesticide fertilizer comprises the following components expressed in mass percent: on the basis that the total mass of the granular pesticide fertilizer is 100%, 0.001 to 20% of a pesticide active component, 70 to 99% of a granular fertilizer carrier, 0.05 to 9% of an organic solvent, 0.05 to 0.5% of a surfactant and 0.05 to 0.5% of a coating agent. According to embodiments in the invention, the pesticide active component and the granular fertilizer carrier in the granular pesticide fertilizer are reasonably combined, which allows the problem of damage by diseases and insects to soil in agricultural production to be effectively overcome and enables soil fertility to be improved and labor and time to be saved. The granular pesticide fertilizer is produced by using a normal temperature spraying adsorption process and a cladding process, so the preparation method for the granular pesticide fertilizer has the advantages of a simple process, low energy consumption, reduction in production cost, easiness in controlling and operating and suitability for industrial production.

The invention discloses a catalyst with meso pore characteristics and an application thereof. The catalyst with meso pore characteristics is produced by loading ingredients with catalytic activity onto the inner tunnel surface of a meso pore molecular sieve carrier, wherein the meso pore molecular sieve carrier contains one or more elements selected from the group consisting of MCM-41, MCM-48, SBA-15, SBA-16, KIT-5 and KIT-6 with the aperture being from 2nm to 50nm; and the active ingredients contain one or more elements selected from the group consisting of Co, Fe, Ni, Mn, Cr, Ti, Cu, Mg, Nb, Ta, Mo, W, Zn, Zr, Ru, Ag, Au, Ru, Rh, Pt, Re, Al, W, Ga, Ge, Sn, Sb and metal oxide thereof. The catalyst with meso pore characteristics can be applied to the catalytic purification of tail gases containing nitrogen oxide. The catalyst provided by the invention has high catalytic activity and is suitable for a plurality of pollutants; in addition, the active ingredients of the catalyst are fixed so as to avoid loss, volatilization and high-temperature sintering.

The invention relates to an inspirator and an atomization component thereof. The atomization component comprises a casing, an atomization element and a switching valve. An atomization chamber, a liquid guide channel and a liquid storage chamber for storing liquids are formed in the casing. The atomization chamber is communicated with the liquid guide channel which is communicated with the liquid storage chamber. The atomization element is arranged in the atomization chamber and is used for atomizing liquids. At least part of the switching valve is arranged in the liquid guide channel and is used for controlling on or off of the liquid guide channel. By means of the inspirator and the atomization component thereof, the switching valve is arranged in the liquid guide channel between the atomization chamber and the liquid storage chamber, and on or off of the liquid guide channel is controlled through the switching valve. When the inspirator is not used, the switching valve cuts off the liquid guide channel, the atomization chamber and the liquid storage chamber are sealed relatively, and accordingly, liquids in the liquid storage chamber are volatilized through the atomization element, and the taste of electronic cigarettes and the medical atomization inspirator effect cannot get worse for being put for a long time.

The invention discloses a refreshing cigarette holder and atomizer assembly for a disposable electronic cigarette. The refreshing cigarette holder and atomizer assembly comprises a cigarette holder shell, wherein one end of the cigarette holder shell is provided with an air suction hole, and the other end of the cigarette holder shell is connected with an atomizer by a connection pair; the atomizer is connected with a puncture needle tube by a fluid guiding frame; a central air vent is formed in the atomizer; a baffle ring is arranged at the periphery of the side wall of one end, which is close to the atomizer, of the cigarette holder shell and is connected with the side wall of the cigarette holder shell by an easily-torn part; an easily-punctured sealing container is arranged in the cigarette holder shell; and an air passage is formed between the easily-punctured sealing container and the inner wall of the cigarette holder shell, and is communicated with the central air vent and an air suction hole. Before the refreshing cigarette holder and atomizer assembly is used by users, smoke fluid is in the sealing state to avoid volatilization, so the quality guarantee period of a cigarette holder can be prolonged effectively; and before the refreshing cigarette holder and atomizer assembly is used by the users, the smoke fluid does not contact parts such as a heating wire of the atomizer, chemical sponge and fibers for guiding fluid and the like, so pollution is avoided, the smoke fluid does not generate harmful substances after being heated, and human bodies can be prevented from being injured.

The invention discloses a solar battery back plate adopting an ultraviolet (UV) curing weather-proof coating and a manufacture method of the solar battery back plate. The solar battery back plate comprises a substrate, wherein at least one side of the substrate is coated with the UV curing weather-proof coating, the UV curing weather-proof coating is prepared from the following materials: 50 to 80 weight percent of weather-proof photosensitive resin, 10 to 20 weight percent of reactive diluent, 2 to 15 weight percent of initiating agent, 5 to 30 weight percent of filling material, 0.5 to 2 weight percent of dispersing agent, 0.5 to 2 weight percent of antioxidant, 0.5 to 2 weight percent of hydrolysis-resistant agent and 0.5 to 2 weight percent of anti-aging agent. The UV curing weather-proof coating is adopted and directly coated onto the substrate, the coating curing efficiency is high, the production efficiency of the solar battery back plate is improved, and meanwhile, the use of organic solvents causing serious pollution to the environment is avoided, so the organic solvent volatilization is avoided in the whole production process, and the solar battery back plate conforms to the green and environmental friendly standard.

The invention discloses a catalyst system for preparing vinyl chloride by hydrochlorinating acetylene, and preparation and application thereof. The catalyst system comprises a catalyst carrier and a catalyst, wherein the catalyst carrier is pyridine ionic liquid, and the catalyst is one or any combination of more than two of tin, palladium, gold, copper, manganese, bismuth, mercury and rhodium. The preparation method for the catalyst system comprises a step of dissolving the catalyst in the catalyst carrier. Acetylene gas and hydrogen chloride gas are mixed and then reacted in the presence of the catalyst system. The preparation process realizes a liquid phase reaction for preparing the vinyl chloride by hydrochlorinating the acetylene, avoids the loss of the catalyst system, is more environment-friendly and safer, and improves the conversion rate of the acetylene and the selectivity of the vinyl chloride.

The invention discloses a biochip incubation reactor, comprising a reaction chamber, an upper cover plate and a lower cover plate that are symmetrically arranged in the reaction chamber. An inner wall of the reaction chamber is equipped with a boss which is molded in one body with the reaction chamber and has a hollow structure to be used as an incubation reaction chamber. A gap used for installing a biochip is arranged between a lower surface of the upper cover plate and the boss; and a gap used for installing a biochip is also arranged between an upper surface of the lower cover plate and the boss. The biochip incubation reactor of the present invention has a simple and novel structure, and is convenient for operation. During the reaction, solution volatilization can be avoided, and high strength oscillation can be realized, so as to increase reaction efficiency, reduce incubation time, and enhance experiment sensitivity, singularity and reappearance. Both the upper cover plate and the lower cover plate of the reactor can be pasted with biochips, so that incubation of double biochips can be completed simultaneously to save samples at least by half compared with a traditional method.

The present invention relates to a low-cost low-pollution preparation method of nylon, and the method is realized by the means of using a high concentration means to effectively suppress pentane diamine volatilization on the basis of inherent characteristics of pentane diamine nylon salt. According to the preparation method, the pentane diamine volatilization in the polymerization process can be reduced, the cost can be saved, the pollution can be reduced, the polymerization cycle can be shortened, the equipment utilization can be improved, the polymerization energy consumption can be reduced, the nylon suitable for different uses can be prepared, and at the same time, the method is also applicable to nylon continuous polymerization.

A lithium metal flow battery system and a preparation method for the same belong to the field of electrochemical power sources. A cathode of a lithium metal flow battery is made of slurry formed by mixing lithium metal powder or lithium alloyed powder with organic liquid electrolyte containing lithium salt, an anode of the lithium metal flow battery is made of mixed slurry formed by the same organic liquid electrolyte and carbon catalyst or carbon-loaded catalyst, high-purity oxygen saturated in the slurry serves as oxidizer, a polymer composite membrane for separating the anode from the cathode is arranged in the middle, a lithium ion migrates between the two electrodes by means of the organic liquid electrolyte and the membrane, and an electron flows on an external lead connected with the anode and the cathode and a load to generate current. The novel lithium metal flow battery can be continuously used only by means of circulating feeding, and lithium metal can be regenerated by recovering discharge products in anode slurry and reused as cathode materials. The lithium metal flow battery system has the advantages of high energy density, continuous and stable operation, simple structure, long cycle life, high safety, high power density, and capability of realizing quick charge and discharge.

The invention provides a solid-liquid separation toilet bowl and a solid-liquid separation treatment system comprising the solid-liquid separation toilet bowl. The solid-liquid separation toilet bowl comprises a panel and a toilet bowl body, wherein the middle part of the panel is provided with a seat hole; the toilet bowl body is provided with a urine collection cavity and an excrement collection cavity; and the urine collection cavity and the excrement collection cavity are arranged with one in front of the other in longitudinal direction of the panel, are positioned below the seat hole and are opposite to the seat hole. Through the urine collection cavity and the excrement collection cavity formed in the toilet bowl body and by arranging the urine collection cavity and the excrement collection cavity with one in front of the other in the longitudinal direction of the panel, the urine collection cavity arranged at the front end is used for collecting urine, the excrement collection cavity arranged at the rear end is used for collecting the excrement, so that the urine and the excrement are effectively prevented from being mixed in the toilet bowl body; and thus, separation and recovery of the urine and the excrement are realized, further recycling of the excrement and the urine is realized respectively, and premise is provided for realizing the value of full utilization of the excrement and the urine.

The invention relates to a method for processing oil sludge, and is suitable for processing ground crude oil in oil field, and a whole technology does not impacted by the loading. According to the existence state of oil, sand and water in oil-containing sludge, by the steps of heating, adding drug, homogenizing, aerating, depositing and centrifuging at high speed, the existence distribution state of oil, sand and water can be changed, the sand-in-oil phenomenon in the original oil sludge is gradually changed to sand-in-water, and the inclusion viscosity of the crude oil to sediment is reduced. Through settlement, oil sludge can be separated before entering into a centrifuge, the loading of the high speed centrifuge is reduced, processing amount of a device is increased, and the unit energy consumption is reduced. The separated sediment surface as well as the internal oil content are reduced to the lowest limitation. The unit treatment process parameter can be freely adjusted according to the oil-containing sludge processing requirement, the method has certain adaption capability; the process is simple and smooth, the operation and management are convenient, recovered crude oil and processed sediment can reach the standard in a stable manner, and a system employs the combination of automatic mode and manual operation.

The invention discloses a chicken manure fermentation organic fertilizer, which is prepared from the following raw materials: chicken manure, straw powders, konjak flour, corn flour, cellulose, zeolite, humic acid, potassium dihydrogen phosphate, urea, peat soil, a leavening agent, a soil improvement agent, a film coating agent, potassium sulfate, borax and calcium superphosphate. The above raw materials are subjected to the integrated treatment of anaerobic fermentation and aerobic fermentation, so that the organic fertilizer is prepared through the fermentation of the chicken manure. The chicken manure fermentation organic fertilizer is complete in fermentation effect, and is capable of killing plant pathogenic bacteria, eggs, weed seeds and other harmful microorganisms in the chicken manure, and generating a large amount of nutrients beneficial to the plant growth and the plant absorption. The process is simple and easy to implement. The raw materials of the prepared organic fertilizer are rich in nutrition. Meanwhile, the prepared organic fertilizer is high in fertilizer efficiency and rich in nutrition, and can coordinate the soil nutrient balance, improve the soil nutrient, promote the plant growth, increase the plant yield and improve the plant quality.

The invention discloses a thermoplastic elastic self-sealing film and a preparation method thereof. The film is mainly prepared from the following components in part by weight: 100 parts of matrix resin, 100 to 140 parts of wax, 10 to 100 parts of thickening agent and 1 to 30 parts of filler. The preparation method comprises the following steps of: fusing and mixing the components except the matrix resin in a ratio; adding the matrix resin, and performing fusing and mixing; and delivering the obtained melt to a hot melt T-shaped crack die head for coating, rolling and forming the film. The thermoplastic elastic self-sealing film has the advantages of no stickiness on the original surface of the film, easy packaging and transporting, no stickiness to hands, and ideal permeability and resilience; and the preparation process is simple and easy to operate.

The invention relates to a special rare earth alloy silver-brazing filler metal applied to the brazing of the metal workpieces such as copper and copper alloy, cemented carbide, carbon steel, stainless steel, nickel-based alloy and the like, and belongs to a moderate temperature brazing material. At present, no silver-brazing filler metal has excellent performance and low price, so that the development of the brazing field is obstructed. The special rare earth alloy silver-brazing filler metal comprises the following components in percentage by weight: 25 to 35 percent of Ag, 32 to 38 percent of Cu, 1 to 2.5 percent of Sn, 0.5 to 2.0 percent of Ni, 0.01 to 1 percent of Mn, 0.1 to 1.0 percent of Li, 0.01 to 0.5 percent of Si, 0.001 to 0.1 percent of mixed rare earth, and the balance of Zn, wherein the mixed rare earth consists of lanthanum and cerium. The special rare earth alloy silver-brazing filler metal has the advantages of high cost performance, low fusion temperature of brazing filler metals, good wettability and fluidity, high mechanical strength of soldered joint, and good soldering technological property.

The synthesis process of urea-formaldehyde controlled releasing fertilizer includes mixing gelatinized starch and urea, adding the mixture of polymer water absorbing resin and formaldehyde solution, adding vegetable oil, organic matter including turf and stalk and adsorbent including zeolite, adding sulfuric acid for acidifying to obtain solid product, and final drying, crushing and sieving to obtain the product. The said process avoids excessive crosslinking of polymer to raise the utility of nitrogen, avoids volatizing of formaldehyde during reaction to raise environment quality and production efficiency, and adds zeolite and other inorganic stuffing to raise product quality and provide water maintaining and fertilizer maintaining function and trace elements. In addition, phosphate fertilizer and potash fertilizer may be also added to produce re-compounded fertilizer.

The invention relates to a vehicle-mounted air purifier. Air inlets are formed on the front side and the rear side of a shell, and an air outlet is formed on the bottom surface; an air duct, a fan, an air purification module and a power supply system are arranged in the shell; the fan is arranged at the central position of the air duct; cold catalyst plates, stainless steel plates and photocatalyst plates of the air purification module are symmetrically arranged from the air inlets on the front side and the rear side of the shell to the inside of the shell sequentially by taking the fan as a symmetric center parallel to an arc-shaped plate and are fixed on the four walls of the air duct through supporting frames respectively; plasma generating electrodes are parallelly arranged on the air duct walls between the stainless steel plates and the photocatalyst plates; ultraviolet lamps are symmetrically arranged on both sides of the fan; the air outlet of the shell is provided with a high efficiency particulate air (HEPA) filtering material; a transformer and a ballast of the power supply system are arranged on the inner wall of the shell above the fan; the input ends of the transformer and the ballast are connected with a vehicle-mounted power supply on a vehicle, and the output ends of the transformer and the ballast are connected with the positive poles of the plasma generating electrodes and the ultraviolet lamps; and the negative poles of the plasma generating electrodes are grounded. The vehicle-mounted air purifier can effectively clean pollutants in carriages.

The invention provides a vertical modular joint for space manipulator, relating to a modular joint for space manipulator. The invention aims to solve the problems with the prior space manipulator which is big in mass, size and power consumption but small in output torque of unit mass. A driving device of the invention is connected with a crown / Rolex gear series device, the crown / Rolex gear series device and a wave generator (2-3-3) is connected with a hollow transmission shaft (2-2-1), a rigid wheel (2-3-2) is connected with an inner ring support base (2-6-1) of a thin wall bearing two and the inner ring support base (2-6-1) of the thin wall bearing two is connected with an output flange (2-10). The invention has the advantages of high in integration and reliability, light in mass, small in size, low in power consumption, compact in structure, big in output torque of unit mass, high in position output precision and big in anti-bending rigidity, and is applicable to adapting to the environment of strong space radiation, high vacuum and big temperature difference, which has good maintainability and reliable operation performance.

The invention relates to an AC arc welding system and a method thereof, belonging to the welding equipment and automation field. The system adopts a wire feeding mode of wire pushing and drawing. A power supply adopts an AC output mode. The system concretely comprises a welding power system and a wire feeding system. The welding power system mainly comprises a main circuit part (1) for providing power output for welding and a control circuit part (2) for controlling the output power of the main circuit. The wire feeding system adopts an AC servo motor as a wire feeding motor and controls an interface circuit (E) by the wire feeding system to receive signals sent by a DSP system (A). The wire feeding motor reciprocates to realize the wire pushing and drawing. Simultaneously, a welding power judges that the welding is in the short circuit / arcing state according to the feedback voltage to change the output polarity of the power. The droplet short circuiting transfer is finished under the function of welding pumpback tension. A small short circuit current is adopted. In addition, the straight polarity direct current is adopted at the arcing initial stage. More arc energy can be distributed to welding wires, and the heat input of base metal is lowered greatly.

The invention relates to a high-performance magnesium-aluminum-chromium composite spinel brick for RH refining furnace dip pipes and non-ferrous smelting furnaces. The high-performance magnesium-aluminum-chromium composite spinel brick is characterized by comprising the following raw materials: 14.0-20.0 parts of low-chromium fused magnesium chromium sand (6-8% of Cr2O3, at least 78% of MgO), 71.6-82.0 parts of high-purity fused magnesite, 2.0-4.4 parts of nano Cr2O3 powder, 2.0-4.0 parts of uf-Al2O3 micropowder and 2-4 parts of binder. The manufacturing method comprises the following steps: mixing, molding, drying, firing and the like. The magnesium-aluminum-chromium composite spinel brick provided by the invention has the advantages of high sintering tendency, high crystal compactness, low porosity (at most 10%), high compressive strength (at least 100 MPa), high thermal shock stability (at least 18 times by 1100 DEG C water cooling) and the like. The Cr2O3 content of the product isat most 6%, thereby reducing the Cr2O3 content in the brick, lowering the production cost and finally effectively reducing the environmental pollution of waste magnesium-chromium bricks after use.

The invention relates to a preparation method of zirconium diboride and silicon carbide high-temperature antioxidant coating, belongs to the technical field of thermal spraying and particularly relates to a preparation method of material surface high-temperature antioxidant coating. ZrB2-SiC coated composite powder is prepared by spray-drying, so that volatilization of SiC during spraying is prevented; the SiC helps further improve high-temperature oxidization resistance of the coating. The ZrB2-SiC composite coating is prepared by means of ultralow-pressure plasma spraying, so that oxidization of the ZrB2-SiC composite powder during spraying is avoided effectively, porosity of the coating can be reduced and bonding strength of the coating can be improved. The prepared ZrB2-SiC composite powder is not larger than 45s / 50g in mobility and 2-3.0g / cm<3> in apparent density; the prepared coating is 7-10% in porosity and 20MPa in bonding strength.

The invention provides a method for preparing polyamide. The method comprises the steps that a raw material solution with the weight percent concentration being 75 wt% to 100 wt% is subjected to a pre-polycondensation reaction and a polycondensation reaction, and polyamide is prepared, wherein the raw material solution is a nylon salt solution prepared from 1,5-pentamethylene diamine and dicarboxylic acid, or a mixture solution of 1,5-pentamethylene diamine and dicarboxylic acid with the total concentration being 75 wt% to 100 wt%. Dicarboxylic acid is one or more selected from aliphatic dibasic acids. Polyamide prepared from the method is good in physical and mechanical performance. Volatilization of 1,5-pentamethylene is obviously inhibited in the whole preparation process, therefore, energy consumption is reduced, cost is reduced, and meanwhile emissions to the environment are reduced.

The invention relates to an inspirator and an atomization component thereof. The atomization component and a battery component of the inspirator are removably connected, and the atomization component comprises a liquid storage structure, an atomization core and a movable piece; the inner part of the liquid storage structure is provided with a liquid storage cavity used for storing liquid, the atomization core is fixedly connected with the liquid storage structure, the atomization core comprises a liquid absorbing core and the movable piece is movably connected with the liquid storage structure; when the atomization component is not connected with the battery component, the liquid storage structure is blocked by the movable piece so that liquid in the liquid storage cavity is separated from the liquid absorbing core to prevent the liquid in the liquid storage cavity from being absorbed and volatized by the liquid absorbing core; when the atomization component is connected with the battery component, the movable piece moves to the battery component so that the liquid storage cavity is communicated with the liquid absorbing core and the liquid absorbing core is used for absorbing the liquid for atomization; when the inspirator is not in use for a long time, the atomization component and the battery component can be separated, and the liquid storage structure can be locked by the movable piece so as to prevent the liquid in the liquid storage cavity from volatizing.

The invention discloses a high heat insulation transparent SiO2 aerogel film material and a preparation method thereof, wherein the preparation method is realized by adopting a sol-gel technique to control the technological condition via using acid / alkali two-step catalytic method, and using hexamethyldisilazane (HMDS) to carry out organic hydrophobic modification on the surface of colloidal particles. The film material and the preparation method thereof are characterized in that the compound precursor sol has stable property, moderate viscidity and long gel time; the prepared aerogel heat insulation film not only has high porosity, low density and low hear conducting coefficient, but also has high light transmissivity and low refractive index, therefore, it is not only fits for the request of high head insulation, but also fits for the transparency request, and can be used as high heat insulation transparent layer of the landing glass of high-rise building and car glass; the row material for preparing aerogel heat insulation film is low in cost, and benefits for realizing commercial application.

The invention belongs to the technical field of white spirit ageing, in particular to white spirit ageing process and device thereof, solving the problems of long aging time, large spirit consumption and the like of the traditional white spirit ageing. The device comprises an ageing device, wherein the ageing device is internally provided with a rotating padding and a guide cylinder, the guide cylinder is internally provided with a liquid lifting device, a liquid outlet and a gas outlet as well as a liquid inlet and a liquid outlet are arranged on a shell, the liquid inlet is connected with a closed vessel, the gas inlet is connected with an oxidizing gas source, and the liquid outlet is connected with a spirit storage vessel. The process comprises the following steps: sending green spirit into the ageing device; introducing an oxidizing gas, processing for 3-5min; then discharging the gas; introducing the oxidizing gas, processing for 10-60min; and sending the aged white spirit into the spirit storage vessel. The white spirit aged by the invention has mellow, soft taste and basically unchangeable processed alcoholic strength; and the content of effective components in the white spirit is equal to that of the years-aged white spirit, and the white spirit is processed for 10-60min, and the effect of the processed white spirit is equivalent to that of a 1-3 years naturally aged white spirit.

A chemically amplified positive resist composition of better performance can be formulated using a polymer having a quencher incorporated therein, specifically a polymer comprising recurring units having a carbamate structure which is decomposed with an acid to generate an amino group and optionally recurring units having an acid labile group capable of generating a carboxyl and / or hydroxyl group under the action of an acid. The polymer is highly effective for suppressing diffusion of acid and diffuses little itself, and the composition forms a pattern of rectangular profile at a high resolution.