84results about How to "Increase the number of pores" patented technology

The invention relates to a preparation method of silicon carbide porous ceramic capable of serving as a high-temperature smoke dust filter. The preparation process is implemented by the following steps of: (1) performing ball-milling and mixing on alkane or ester, a surfactant with hydrophile-lipohile balance (HLB) value of 8 to 18, a certain amount of ceramic power, sintering aid, dispersing agent, monomer, crosslinking agent and catalyst, and water to prepare suspending slurry with dispersion stability, wherein the alkane or ester, which is liquid at normal temperature, serves as an organicmatter dispersing phase, the surfactant serves as an emulsifying agent and the water serves as a dispersing medium; (2) adding a proper amount of initiator into the suspending slurry to stir uniformly, pouring into a die to perform crosslinking curing, demoulding, drying a green body, and removing glue; and (3) sintering the green body by a certain sintering system to obtain the silicon carbide porous ceramic finally. The preparation method has the characteristics of greatly increasing quantity of air holes of the silicon carbide porous ceramic and the specific surface area and effectively regulating and controlling aperture size; the required equipment and process flow are simple; and the obtained porous ceramic machine has high strength, long service life and low production cost.

The invention relates to a preparation method of a reed-based biochar adsorption material. The preparation method is technically characterized by comprising the following steps of cleaning the reed stalk, drying and crushing; soaking the crushed reed stalk into a KOH (potassium hydroxide) solution to activate, and drying; putting the dried crushed reed stalk into an atmosphere furnace, and performing oxygen-free high-temperature cracking under the nitrogen or inert gas protection atmosphere; after high-temperature cracking treatment, cooling to room temperature, and cleaning the cracked material to be neutral by an acid solution, so as to prepare the reed-based biochar adsorption material. The preparation method has the advantages that the problems of pollution to environment and waste ofresources due to irresponsible disposal of the wetland plant wastes are solved; compared with the prior art, the specific surface area is large, the pollutant adsorption ability is strong, the environment-friendly value is greatly increased, and the resource utilization of the wastes is realized.

The invention provides an organic activated carbon and a manufacturing method thereof. The manufacturing method is characterized in that an organic raw material is adopted as natural grass woody rotted plant peat or peat of planus type, and the organic raw material is sent to be rolled and extruded in template type and screened by purifying water so that completed granules, which contain hard and long fibers and various impurities, can be removed; the granules are sun and air dried or heated, mixed and dried; the dried granules are electromagnetically screened so as to remove heavy metal, and are changed into a powdery material, then the powdery material is extruded and molded into grains and carbonized, the grains are carbonized in oxidation protection type by infrared rays, and the carbonized grains are selected by the machine to grade the evenness; the carbonized grains are activated by pure steam, and organic activated carbon is generated; and the finished product is manufactured by special machine models, and grains and powder are graded according to the sizes of the carbon grains. The powder-shaped activated carbon can be refined again in dust free environment to reach the activated carbon of sub-nanometer grade or nanometer grade. Or with reasonable template process, the organic activated carbon of multiple specifications and performances can be manufactured. The organic activated carbon has the advantages of even texture, same weight, thorough carbonization and surface area of high ratio.

The invention relates to gypsum building materials, and particularly relates to a gypsum-based building material prepared from plant fibers for treating indoor formaldehyde and an application method thereof. The gypsum-based building material is formed by adding water to a mixture and then stirring the watered mixture, wherein the mixture is formed by mixing the following components by percent: 5-20% of semi-carbonization plant fiber, 30-70% of gypsum for buildings, 1-20% of semi-hydrated gypsum whisker, 1-20% of hydrated lime, 1-10% of white cement, 1-20% of expanded vermiculite, 0.1-1% of water reducing agent, 0.1-1% of retarder, 0.01-1% of thickening agent, 0.1-1% of antistatic agent and 0.1-1% of inorganic pigment, and the mass of the water accounts for 20-50% of the mass of the mixture. The utilization rate of wastes is realized; the prepared material has high formaldehyde adsorption property; the gypsum-based building material has the advantages of heat retaining property, good water resistance, small deformation, high mechanical strength, good decorative property and the like.

The invention belongs to the field of fertilizers for crops and particularly relates to a special ecological fertilizer for maca as well as a preparation method thereof. The special ecological fertilizer is prepared by mixing decomposed manure, agricultural and forestry wastes, urea, a phosphate fertilizer, potassium humate, medium trace elements, an activating agent and a water retaining slow-release agent at a certain weight ratio. A compound fertilizer with charcoal serving as the substrate is prepared by carbonizing the agricultural and forestry wastes into charcoal and fully mixing the charcoal with the decomposed manure and the chemical fertilizers. The content of total nitrogen and available phosphate in soil can be increased due to the application of the compound fertilizer. The loss of nutrients in the compound fertilizer due to elution can be reduced, and the utilization rate of the compound fertilizer can be increased. The water retaining slow-release agent is added into the compound fertilizer to form the ecological fertilizer with water retaining and slow releasing capacities. The special ecological fertilizer for maca is reasonable in formula, contains multiple balanced nutrients, is improved in utilization rate significantly and can be used for greatly improving the yield and quality of maca. In addition, the special ecological fertilizer for maca can be used for improving the environment of soil, enhancing the fertilizer retaining and supplying capacity and buffering capacity of soil, reducing pests and diseases and increasing the economic benefit of maca due to long-term application.

The invention relates to a polyvinylidene fluoride ultrafiltration membrane modification method for improving anti-pollution performance of the film. Cellulose acetate as a membrane material is added with hydrophilic nanoparticles to the change membrane hydrophilicity, so as to complete blending modification of the cellulose acetate membrane. The method of the invention has simple operations, effectively improves the interface bonding with matrix to better transfer the stress to inorganic particles, increases permeability of the composite membrane, improves the flexibility and the service life of the membrane, reduces costs, and maintains interception performance of the ultrafiltration membrane. The prepared ultrafiltration membrane has obviously improved hydrophilicity and significantly improved anti-pollution ability.

The invention relates to a terylene yarn with high moisture-transmitting property and a production method thereof. The terylene yarn is made by blended spinning of a straight-line section terylene fiber and a cruciform section terylene fiber. The production steps include (1) the straight-line section terylene fiber and the cruciform section terylene fiber are selected based on the ratio of fiber number; (2) the terylene yarn is produced after treatment of fiber strand and mixing. Number of inner capillary porosity and capillary wicking of the produced terylene are greatly increased and the moisture-transmitting property is obviously improved. The terylene yarn can be used for producing high moisture-transmitting fabric textile separately or together with other fiber yarn, thereby being widely applicable to fields of cloths, decoration and industry.

The invention discloses a non-metallic mineral long-acting nitrogenous fertilizer nitrification inhibitor and a preparation method thereof. The preparation method is characterized by comprising the following steps: introducing 1-50 parts of the nitrification inhibitor into 100 parts of 25-100 DEG C water so as to make a solution; adding 25-75 parts of nitrification inhibitor solution into every 100 parts of non-metallic mineral powder; and sufficiently stirring and drying so as to obtain the nitrification inhibitor; or a binder accounting for 1-5% of the total weight of the non-metallic mineral and the nitrification inhibitor solution is added, sufficiently stirred, palletized and dried; or a mixture of the non-metallic mineral and the nitrification inhibitor solution or a screened powder product covers the outer surface of the fertilizer. The product is prepared by utilizing the excellent abruption property of the non-metallic mineral, the process is simple, the cost is low, the slow-release effect is better, and the inhibition effect on the activity of soil enzyme is longer; and meanwhile the non-metallic mineral can further provide various beneficial elements to the soil, so that the physicochemical properties of the soil are improved.

The invention discloses a long-lasting antibacterial chitosan modified oxidized cellulose fabric and a preparation method thereof. The long-lasting antibacterial chitosan modified oxidized cellulose fabric is obtained through a nucleophilic addition reaction of an amino group in a chitosan molecule and an aldehyde group in a selectively oxidized cellulose fabric. The chitosan modified oxidized cellulose fabric prepared in the invention has long-lasting and efficient antibacterial activity and good wearability, has good affinity to human bodies, is safe and hygienic, and overcomes the negativeinfluences of a chemical cross-linking agent used in conventional chitosan modification on the excellent properties of cellulosic fabric and the health of the human bodies, so the long-lasting antibacterial chitosan modified oxidized cellulose fabric has an actual application prospect.

The invention relates to the field of window nets, and in particular, relates to an anti fog and haze window net. The anti fog and haze window net provided by the invention includes an outer-layer dedusting window net and an inner-layer purifying window net; the outer-layer dedusting window net mainly filters dust in air, and the inner-layer purifying window net mainly plays roles in adsorbing and filtering bacteria in the air and harmful chemical gases in automobile exhaust gas, so the anti fog and haze window net provided by the invention not only has the dedusting function, but also has the functions of filtering the bacteria and the harmful chemical gases. The anti fog and haze window net provided by the invention can effectively control and improve the high-altitude indoor air quality in a haze weather, absorbs harmful bacteria, microorganisms and dust in the air to a greatest extent, plays a great role in protecting body health of indoor occupants, is of great significance to maintain the body health of all urban residents in future urban construction, and also plays a key role in improvement of the urban living environment in the future.

The invention discloses a multifunctional adsorbent and a preparation method thereof. The multifunctional adsorbent is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of zeolite, 3-4 parts of alumina sol, 0.4-1 part of polyvinylpyrrolidone, 15-20 parts of deacetylchitin, 0.1-0.3 part of cationic polyacrylamide, 4-6 parts of carclazyte, 10-14 parts of mullite, 7-9 parts of activated carbon and a proper amount of deionized water. The adsorbent disclosed by the invention has good adsorption capacity, is good in circulating stability, low in cost, nontoxic and harmless, and can meet the industrial adsorption function.

The invention discloses an adsorbent for electric furnace smoke and a preparation method for the adsorbent. The adsorbent is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of zeolite, 3-4 parts of an alumina sol, 0.4-1 part of polyvinylpyrrolidone, 15-20 parts of deacetylchitin, 0.1-0.3 part of cationic polyacrylamide, 13-15 parts of diatomite, 5-6 parts of calcium silicate, 6-9 parts of sepiolite and a proper amount of deionized water. The adsorbent disclosed by the invention is relatively high in adsorption rate and adsorption capacity, low in price, abundant in source of raw materials, simple and environmental-friendly in preparation process, good in effect of purifying electric furnace smoke, and relatively high in economic and social benefits, and is worth being popularized.

The invention belongs to the technical field of adsorbing storing of natural gas, and specifically relates to a carbon aerogel natural gas adsorbing agent and a preparation method and application thereof. The method comprises the following steps: (1) stirring and dissolving biomass raw materials in a solvent; quickly freezing; and performing freezing drying to obtain a carbon aerogel precursor; and (2) carbonizing the carbon aerogel precursor obtained in step (1) under a protecting atmosphere; and activating the product in a chemical manner so as to obtain the carbo aerogel natural gas adsorbing agent. The carbon aerogel material prepared by the method has the advantages of being high in abrasion resistance and mechanical intensity while high specific surface area remains; any adhering agent is not used in the forming process, so that the preparation cost and the production time are greatly decreased; in addition, the mechanical activating manner is carried out, so that the specific surface and the porosity can be further increased.

The invention discloses a preparation method of an energy-saving sludge-based adsorbent. The preparation method comprises the following steps: (1) placing residual wet sludge at a heating zone of a pyrolysis reactor of an external-heated tube furnace, wherein the residual wet sludge is doped with an activator FeCL2 and the content of moisture of the residual wet sludge is 60-90%, the mass part ratio of the FeCl2 to the residual wet sludge is 1 to (10-20), performing pyrolysis in a nitrogen atmosphere, wherein the temperature rising speed is 70-80 C degree per minute, the pyrolysis temperature is 550-560 C degree, the stay time is 10-15 minutes and the nitrogen blowing speed is 25-30ml per minute, switching off the tube furnace and a switch of a nitrogen tank after the reaction is completed and cooling to obtain pyrolyzed sludge residue; (2) collecting the pyrolyzed sludge residue, grinding, sieving with a 50-70 mesh screen to obtain sludge residue particles; and (3) washing the sludge residue particles with distilled water till a washing liquid is neutral and drying to obtain the sludge-based adsorbent. According to the preparation method, the energy consumption is effectively reduced and the environment friendliness is improved.

The invention discloses a soil improvement method which comprises the steps as follows: firstly, oxidizing biomass charcoal under the irradiation of a xenon arc lamp, and spraying a hydrogen peroxidesolution for once every 6 to 9h during oxidization; in winter, ditching in the land to form criss-crossed gullies; mixing original soil obtained after ditching with the oxidized biomass charcoal according to a ratio of 1:(0.5 to 1), applying the mixture of the biomass charcoal and the original soil into the gullies, and applying soil to bury and tamp; and covering the tamped gullies with crop straws, and from the date when tamping is carried out, uniformly applying animal waste to the crop straws every 10 to 20 days until the spring next year. According to the invention, by modifying the biomass charcoal, not only is the environmental restoration ability improved, but also the soil improvement effect is improved in a low-cost mode.

The invention discloses a composite sludge deep dehydration agent, and a preparation method and a use method thereof. The composite sludge deep dehydration agent comprises a modifier, the modifier ispowder, the effective content is more than 90%, and the passing rate of the modifier with fineness of 100 meshes is more than 85%; wherein the main component of the modifier is a combination of multiple of magnesium sulfate, magnesium chloride, aluminum sulfate, magnesium oxide, ammonium chloride, sodium gluconate, ferric chloride, ferric sulfate, ammonium sulfate, aluminum chloride, sodium aluminate and sodium pyrosulfate. The method includes steps of: carrying out mechanical dehydration on the sludge to be treated to obtain plastic sludge with the water content of 75-85%; mixing the modifierwith water to prepare a modifier solution, wherein the mass ratio of the modifier to the water is 1:1-1:5; adding the modifier solution into the plastic sludge, wherein the adding amount of the modifier solution is 0.5-2% of the mass of the plastic sludge; and carrying out re-dehydration treatment through high-pressure deep dehydration equipment, so that the water content of the sludge with the water content of 75-85% can be reduced to 45-70%.

The invention discloses a control system and method for salt and alkali accumulation land of a greenhouse. The control system comprises a crop planting layer, a salt and alkali inhibiting layer, a subsoil layer, water permeating pipelines and a salt discharging ditch, wherein the salt and alkali inhibiting layer covers the subsoil layer, the crop planting layer covers the salt and alkali inhibiting layer, the water permeating pipelines are laid in the subsoil layer in the east-west direction of the greenhouse, and the salt discharging ditch is dug between greenhouses; the method comprises the steps of stratigraphic division, digging of the salt discharging ditch, laying of the water permeating pipelines, filling of the salt and alkali inhibiting layer, turning of soil and the like. According to the control system and method for the salt and alkali accumulation land of the greenhouse, underground saline-alkaline water permeates into the water permeating pipelines and is discharged through the salt discharging ditch, the situation that underground water rises along soil capillaries and is vaporized so that accumulation of salt is caused is prevented, the phenomenon that the saline-alkaline water goes on rising along the soil capillaries is reduced, the crop planting layer is further subjected to broadcast application of calcium phosphate and turning of the soil by using a rotary tillage plough and salt is discharged rapidly according to the design of the whole system; once for all, the control effect on soil salinization is good, and the using time is long.

The invention discloses an in-situ vacuum negative pressure mass transfer contaminated soil remediation method, and belongs to the field of contaminated soil treatment. The method comprises the stepsthat: working bodies (hereinafter referred to as working bodies A) capable of uniformly transmitting vacuum negative pressure in a full-length range and working bodies (hereinafter referred to as working bodies B) capable of uniformly outputting gas, liquid and heat are implanted into contaminated soil to form an array, and the at least one working body B is arranged around any working body A; thesystem is isolated from outside air and heat; the working bodies A is vacuumized, and gas or liquid or heat or a combination of the gas and the liquid is injected through the working bodies B to forma fluid field which is uniform in distribution and controllable in direction; and therefore, volatile organic pollutants or non-volatile organic pollutants or non-volatile organic pollutants or inorganic pollutants or mixed pollutants in the medium-low-permeability polluted soil under the underground water level are removed, due to directional migration of fluid flow, outward random diffusion isavoided, so that a water-stopping, gas-insulating or heat-insulating curtain does not need to be arranged, and the pollution range is not enlarged.

The invention discloses biomass granular activated carbon. The biomass granular activated carbon comprises, by weight, 40-50 parts of fruit shell, 25-30 parts of mixed wood chips, 16-24 parts of bagasse, 17-23 parts of corn straw, 18-26 parts of cow dung, 38-42 parts of fly ash, 16-20 parts of bentonite, 24-28 parts of diatomaceous earth, 12-16 parts of sodium succinate and 5-11 parts of pore forming agents. A preparation method of the biomass granular activated carbon includes the following steps that under anaerobic conditions, bacteria strains are domesticated to obtain CO2 high-yield fermenting bacteria, the biomass raw materials are fermented by using the CO2 high-yield fermenting bacteria, a fermentation product is mixed with the fly ash, the bentonite and the diatomaceous earth andsintered into carbon under the action of the pore forming agents, and sodium succinate is used for impregnation and activation. Recycling of biomass waste is achieved, the specific surface area and porosity of the produced activated carbon are up to 1186.9 m<2> / g and 71.8% respectively, the adsorption capability and decolorization capability are excellent, and the biomass granular activated carboncan be widely applied to the fields of environmental protection, industrial production and agricultural production.

The invention discloses a preparation method of a magnesium oxychloride cement foam concrete wall heat-preservation material. The magnesium oxychloride cement foam concrete wall heat-preservation material prepared by the preparation method disclosed by the invention is fast to coagulate and harden, when the magnesium oxychloride cement foam concrete wall heat-preservation material is foamed with a foaming agent, a composite foam stabilizer or a retarder is not used, EPS granules are mixed, the number of pores in products is increased, the foaming efficiency is high, besides, the density of the products is reduced, and the magnesium oxychloride cement foam concrete wall heat-preservation material is high in weight and capable of heat preservation and heat insulation; fibers are mixed with magnesium oxychloride cement, so that the surface strength, the bending strength and the cutting strength along planes of the products are improved, magnesium oxychloride cement products are prevented from generating deformation due to pressing and the like, the stacking and the transportation of the magnesium oxychloride cement products are greatly facilitated, and the load of buildings can also be effectively alleviated while the strength of wall is kept.

The invention relates to the technical field of sound absorption plates, in particular to a polyester fiber plate based on jute straw waste and a production process thereof. The jute straw waste is used as raw materials for preparing jute fiber; then low-melting-point fiber is prepared after melt-spinning; mixing, opening, carding, lapping, and needling reinforcing are conducted to obtain a fiberplate body; a fire retardant is sprayed to the fiber plate body and the fiber plate body is subjected to drying, press polishing and cooling; and the polyester fiber plate is obtained after cutting. The polyester fiber plate is prepared from the following components in parts by weight: 50-60 parts of the jute fiber and 40-50 parts of the low-melting-point fiber; and the NRC sound absorption coefficient of the polyester fiber plate is higher than or equal to 0.90. The production process of the polyester fiber plate comprises the following steps: (1) preparing the raw materials; (2) mixing and lapping; (3) reinforcing a fiber mesh; (4) spraying the fire retardant; (5) drying, press polishing and cooling; and (6) cutting and organizing. The polyester fiber plate based on the jute straw wasteis extremely high in hygroscopicity and air permeability and good in sound absorption effect, can realize effective anti-microbial, anti-mite, mould-proof and sound insulating effects, and is degradable.

The invention discloses modified zeolite of a nano silicon dioxide mesoporous covering structure and the preparation and the application of the modified zeolite. The modified zeolite is capable of increasing the number of micropores and the specific surface area of raw zeolite, and is of a multi-stage pore structure of a new nano silicon dioxide mesoporous structure with raw zeolite micropores covered with a raw zeolite surface. According to the modified zeolite, raw pores of the raw zeolite self are not increased to produce a pore expansion effect, BET (Brunauer, Emmett and Teller) specific surface area tests show that the aperture of the modified zeolite is 1.3-10nm, and the particle size of the modified zeolite is 0.05-10mu m.

The invention discloses a high-temperature-resistant asphalt composite waterproof coiled material and a preparation method thereof. The asphalt composite waterproof coiled material is prepared from the following raw materials in parts by weight: 40-50 parts of matrix asphalt, 10-13 parts of base oil, 10-15 parts of heat-resistant rubber and 20-30 parts of an anti-aging filler. The heat-resistant rubber and the anti-aging filler are prepared in the preparation process, and the heat-resistant rubber is crosslinked with asphalt, so the heat resistance of the heat-resistant rubber is greatly improved, and when the composite material is prepared from the heat-resistant rubber and the asphalt, the heat resistance of the asphalt is greatly improved, and the asphalt cannot be separated from the body along with the use of the waterproof coiled material; the anti-aging filler can shield ultraviolet rays, so the waterproof coiled material does not generate photochemical reaction under illumination, carboxyl and hydroxyl on the modified carbon fibers enable crosslinking of the modified carbon fibers and asphalt to be firmer, and the situation that after the waterproof coiled material is used for a long time, the anti-aging filler is separated from a body, and the anti-aging effect cannot be achieved is prevented; and due to the use of the carbon fibers, the service life of the waterproof roll is prolonged.

The invention discloses a saline and alkaline land mulching film and film spacing horizontal rotation planting method which includes the steps: horizontally laying straw layers I underground on planting rows at intervals during autumn land preparation in a previous year, and laying plastic membranes on ground surfaces corresponding to the straw layers I before spring sowing in a first year; (2) plowing crop straws to the lower portion of film spacing I to form new straw layers II after crops are harvested in autumn in the first year; (3) laying mulching films on ground surfaces corresponding to the straw layers II in spring in a second year; (4) dosing the rest in the same manner, alternately laying new straw layers in the underground covered with the mulching films and the film spacing after the crops are harvested in autumn every year, and alternately planting the crops in the mulching films and the film spacing in spring every year. As new straws are alternately laid in the underground covered with the mulching films and the film spacing every year, surface accumulation of salts in the film spacing over the years and cutoff of soil capillary tubes can be relieved, soil organic matters are increased, and the problem of successive cropping obstacles caused by planting at the same position can be solved.

The invention relates to red date nougat and a preparation method thereof. The method comprises the pretreatment of raw materials and the preparation of the nougat. The method specifically comprises the following steps: syrup decoction, cooling, blending, sealed freezing, sealed low-temperature crushing, spray puffing, and forming and packaging. The method adopts temperature programming and spraypuffing process supplemented by whole-course sealing freezing and starch micro-crystallization treatment, so that ovalbumin can fully exert the function of surfactant, protein and sugar are mutually woven to form nets, and bubbles are fixed in the middle of protective films. Besides, the added hydrophilic starch can react with the protein in a foaming agent to generate a molecular complex and to form thin films, and when the films are heated and water content is extremely high, the bubbles do not break, so that the nougat has good texture and taste feel difference, thereby achieving the pleasure of mouth feel and taste.

The invention relates to a preparation method of carbon-based metal anticorrosive paint, which belongs to the technical field of paint preparation. The shaddock peel with a loose porous structure is used as a raw material and mixed with biogas slurry and metal salt solution after being crushed, finally the mixture is mildewed at a high temperature and high humidity condition, then a mildewed product is carbonized and reacts with long-carbon-chain alkyl acyl chloride to obtain a pre-modified charcoal, finally the pre-modified charcoal is finally modified by utilizing microorganisms and grease to obtain modified biological porous carbon, and the modified biological porous carbon is used as filler to be mixed with other raw materials, so that the carbon-based metal anticorrosive paint is finally obtained. According to the carbon-based anticorrosive paint prepared by the invention, the compatibility between the carbon-based filler and the paint matrix is good, no clustering precipitate iseasy to generate, the anticorrosive effect is excellent, and the application prospect is wide.

The invention relates to the technical field of sound absorption panels, in particular to a polyester fiber plate based on China hemp straw waste and a production technology of the polyester fiber plate. The China hemp straw waste is used as a raw material to prepare China hemp fiber, low-melting-point fiber is prepared through smelting spinning, a fiber plate body is prepared through mixing, opening, carding, lapping and needling reinforcement, a fire retardant is sprayed on the fiber plate body for drying, press polishing and cooling, and the polyester fiber plate is obtained after cutting;and the polyester fiber plate is prepared from the following components in parts by weight: 50-60 parts of the China hemp fiber and 40-50 parts of the low-melting-point fiber, and a NRC sound absorption coefficient of the polyester fiber plate is greater than or equal to 0.90. The production technology of the polyester fiber plate comprises the following steps that (1), the raw material is prepared; (2), mixing is carried out to form a mesh; (3), the fiber mesh is reinforced; (4), the fire retardant is sprayed; (5), drying, press polishing and cooling are carried out; and (6), cutting and tidying are carried out. The polyester fiber plate is environment-friendly and saves energy, has extremely high moisture absorption performance and air permeability, has a good sound absorption effect, can effectively resist bacteria, restrain mites, prevent mildew, insulate sound, can be degradable, and has high strength.

The invention relates to polyester yarn with the high wet permeability and a manufacturing method thereof. The polyester yarn is prepared by blending of polyester fiber with a line-shaped section and polyester fiber with a cross-shaped section. The manufacturing method comprises the steps that firstly, according to the ratio of the number of the fibers, the polyester fiber with the line-shaped section and the polyester fiber with the cross-shaped section are selected; secondly, the polyester yarn is obtained after doubling and blending. According to the prepared polyester yarn, the number of capillary pores and the porosity are greatly increased, the wicking effect is obviously improved, the wet permeability is obviously improved, and the polyester yarn can be used individually or blended with other fiber yarns so as to be weaved into a high-wet-permeability fabric, and can be widely used in the fields of clothing, decoration and industries.

The invention provides an efficient compound feed for tilapia nilotica and belongs to the technical field of processing of aquatic feeds. The feed comprises a protein source raw material, a fat sourceraw material, a sugar source raw material, an auxiliary material and a coated raw material, and further comprises an algae nutrient; a homogenizing agent for preparing the abovementioned algae nutrient contains sodium benzoate and sodium dehydroacetate. The invention further provides a preparation method of the efficient compound feed for tilapia nilotica. The preparation method mainly comprisesthe steps of performing acid pickling, enzymolysis and ultrasonic vibration on algae to extract the algae nutrient, mixing the algae nutrient with the protein source raw material, the sugar source rawmaterial and the auxiliary material, and then puffing the mixture, and finally coating the puffed mixture by using the fat source raw material and the coated raw material. The efficient compound feedfor tilapia nilotica provided by the invention contains the water-soluble algae nutrient, is low in disintegration rate and dissolution loss rate in water, is rapidly disintegrated in succus gastricus, and has high stability and high digestibility; the preparation method of the efficient compound feed has the advantages of high extraction efficiency, short production cycle, high raw material utilization rate and yield and high bio-enzyme immobilizing amount.

The invention relates to a micro-arc oxidation electrolyte system added with calcium lactate. The micro-arc oxidation electrolyte comprises an acid containing phosphorus or a phosphate and the calcium lactate, wherein the ratio of Ca to P is smaller than or equal to 1 / 2. Constant positive voltage and negative voltage are adopted, through a micro-arc oxidation technology, a calcium-phosphorus film layer is prepared on the surface of self-casting Mg-2Sr alloy, XRD and FT-IR infrared test result shows that phases contained in a micro-arc oxidation film layer before being soaked in a simulated body fluid mainly are Mg, MgO, Sr2Mg17, MgF2, CaO, CaF2, Ca3(PO4)2(TCP) and the like, and, in addition, existing of new phases, such as Ca2P2O7, Mg(OH)2, HA, Sr-HA, are further detected in the film layer after being soaked. According to the micro-arc oxidation electrolyte system added with the calcium lactate, the micro-arc oxidation film layer prepared by adopting the method has a typical micro-pore structure, and moreover an obvious micro crack is not discovered; and the contents of calcium and phosphorus phases in particle-shaped corrosion products on the surface of the micro-oxidation film layer are high, and the biological performance (the biocompatibility or the bioactivity) is good. Compared with a base body, the micro-arc oxidation film layer has good corrosion resistance, and the corrosion current is enhanced by more than two orders of magnitude compared with an existing high-calcium and low-phosphorus electrolyte.