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32results about How to "Increase the adsorption specific surface area" patented technology

Perforated plate fresh air introducing and purifying device

The invention discloses a perforated plate fresh air introducing and purifying device and belongs to the technical field of air energy recycling and high efficiency energy saving in ventilation equipment. The device comprises a perforated plate purifying, energy recycling and heating core, a fresh air machine, an exhaust fan and an electric cabinet, wherein the size of the perforated plate purifying, energy recycling and heating core is 160mm*160mm to 350mm*350mm; the perforated plate purifying, energy recycling and heating core comprises 45 to 2400 pieces of perforated plate semi-closed conductive combinations and corrugated pieces; each perforated plate semi-closed conductive combination comprises a perforated plate, conductive bands, purifying copper sheets A and B, and heating copper sheets A and B; a square hole shaped fresh air channel with the side length being 1 to 20mm is formed in the perforated plate; the conductive bands are printed or sprayed on the two outer surfaces of the perforated plate; the purifying copper sheets A and B and the heating copper sheets A and B are respectively adhered to the two ends of the conductive bands on the two outer surfaces of the perforated plate; the perforated plate semi-closed conductive combinations and the corrugated pieces form 90 degrees and are assembled alternately and crosswise. The perforated plate fresh air introducing and purifying device has the benefits that new pollutant, such as ozone and the like, is not produced, energy can be efficiently recycled, condensation cannot be produced when the device is used in cold regions, and meanwhile the purification efficiency is high.
Owner:NINGBO DONGDA AIR CONDITIONING EQUIP

Method for preparing luffa deodorant and antibacterial insole

InactiveCN102499509AGood skin feelStrong deodorizing functionInsolesFiberEthylene diamine
The invention provides a method for preparing a luffa deodorant and antibacterial insole, and belongs to the field of the application of health-care shoe materials for improving the microclimate of shoe cavities. The method comprises the following steps of: bleaching and softening luffa, and immersing the cleaned luffa into a matching liquid of H2O2, Na2SiO3 and MgSO3 and decolorizing and softening; cleaning, soaking in ethylene diamine tetraacetic acid (EDTA) for a moment so as to avoid yellowing, alkalifying, and soaking in a certain amount of a solution of sodium hydroxide\ethanol to perform delignification and increase the porosity of the surface of fiber; performing intermittent microwave radiation to deepen the treatment degree and strengthen the absorption performance of the luffa so as to ensure that the luffa has a good deodorization function, and adding a prepared antibacterial agent and finishing so as to ensure that the luffa which has a certain antibacterial function has a stronger antibacterial property; and finally, pressing the luffa into sheets, and compounding the transverse and longitudinal sheets according to the trend of the fiber to obtain the luffa deodorant and antibacterial insole.
Owner:SHAANXI UNIV OF SCI & TECH

Preparation method of ecological security flocculating agent for effectively removing phosphorus and algae in eutrophic water body

The invention relates to a preparation method of an ecological security flocculating agent for effectively removing phosphorus and algae in a eutrophic water body. The preparation method comprises the following steps of preparing materials, uniformly mixing original clay with water to obtain clay suspension, adjusting the basicity to 50-90% by dropping dilute acid into the clay suspension, uniformly mixing aluminium polychlorid powder with water to prepare aluminium polychlorid solution, adjusting the basicity to 50-90% by dropping dilute acid or dilute alkali into the aluminium polychlorid solution, pouring the aluminium polychlorid solution into the clay suspension, standing and curing at 50-80 DEG C to obtain curing solution, drying the curing solution at 50-80 DEG C, and crushing and sieving to obtain the flocculating agent. According to the invention, the removal rate of total phosphorus is 93% or more; the removal rate of CODCr is 53% or more; the removal rate of total nitrogen is also above 3%; the removal rate of water-blooming cyanobacteria is 96% or more; the removal rate of algal toxin MC-LR is 7% or more; and the risk in rapidly releasing algal toxin is not caused.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES

Composite activated carbon filter element and preparation method thereof

The invention provides a composite activated carbon filter element which comprises the following components in parts by weight: 3-6 parts of activated carbon fiber cloth, 3-9 parts of wood carbon, 25-32 parts of coconut shell activated carbon and 2-3 parts of acrylic glue. Adsorption properties of various carbon materials of the composite activated carbon filter element provided by the invention can supplement one another, so that the adsorption efficiency is greatly improved, and the effective use time is prolonged. Compared with a common activated carbon filter element, the composite activated carbon filter element is relatively large in adsorption specific surface area, relatively dense in structure, relatively rich in porosity, relatively high in strength, not liable to crush and relatively small in dust amount, the adsorption effect is 10 times better than that of the common activated carbon filter element and is 25 times better than that of granular activated carbon, and water purified by using the filter element is relatively pure in taste.
Owner:KAMFORD CHINA CO LTD

Internal expansion type metal porous adsorption ball and preparation process thereof

The invention discloses an internal expansion type metal porous adsorption ball and a preparation process thereof, and belongs to the field of adsorption ball preparation. A hollow ceramic shell is matched with an elastic internal expanding mechanism which is initially gathered; injecting of a metal powder mixed solution into the hollow ceramic shell is carried out; heating and melting of solid positioning soluble capsules are carried out; expansion of the elastic internal expanding mechanism formed by gathering a plurality of elastic porous metal foam strips in the hollow ceramic shell is carried out; the bearing effect on the metal powder mixed liquid is favorably achieved; the mechanical strength and the injection molding bonding strength of the adsorption ball are improved; the adsorption specific surface area is enlarged; a plurality of oval bulges filled with activated carbon powder are matched; on one hand, a solid adsorption sphere is effectively prevented from being formed after preparation is completed; on the other hand, high-pressure gas is introduced, the activated carbon powder in the oval-shaped bulge is uniformly diffused into the metal powder mixed liquid through gas flow, the using effect of the adsorption ball is effectively improved, the flowing gas can easily form a porous structure through the metal powder mixed liquid, and the through hole rate of the adsorption ball is increased.
Owner:楼元华

Polyaniline modified bentonite nano-microsphere adsorption material and preparation method thereof

The invention discloses a polyaniline modified bentonite nano-microsphere adsorption material. The material is prepared from the following raw materials in percentage by weight: 10 to 20% of aniline monomer intercalated organic bentonite, 60 to 80% of distilled water, 9 to 15% of sodium hydroxide, 0.02% to 0.06% of an initiator, and 0.3% to 0.5% of an emulsifier. The invention further provides a method for manufacturing the polyaniline modified bentonite nano-microsphere adsorption material. The polyaniline modified bentonite nano-microsphere adsorption material which is low in cost, high in compatibility, environment-friendly, and easy in solid-liquid separation and has nanometer size effects is prepared and synthesized through specific formula design and process parameter selection, and further larger in specific surface area and smaller in nanometer scale and has the functional properties of synergistically adsorbing double-pollution components of metal ions and organic matters in wastewater.
Owner:陕西龙宾立德新材料科技有限公司

Fermented-carbonized-walnut-shell particles and preparing method and application thereof

The invention provides fermented-carbonized-walnut-shell particles and a preparing method and application thereof. The preparing method of the fermented-carbonized-walnut-shell particles includes thefollowing steps that (1) tobacco soil Dyella L4-6 fungicide is prepared; (2) walnut shells are fermented with the tobacco soil Dyella L4-6 fungicide, and the fermented walnut shells are obtained; (3)the fermented walnut shells are carbonized, and the fermented-carbonized walnut shells are obtained; (4) fermented-carbonized-walnut-shell powder is put on a fluidized bed and dried, a binding agent is sprayed, the powder is bound to form the particles, drying continues to conduct, and the fermented-carbonized-walnut-shell particles are obtained. According to the fermented-carbonized-walnut-shellparticles and the preparing method and application thereof, the walnut shells serve as raw materials, the environmental-friendly effect is achieved, and the effect of turning waste into wealth is achieved; the fermented-carbonized-walnut-shell particles are fermented and applied to cigarettes, then special fragrance matched with cigarette smoke can be generated, the cigarette fragrance is enriched, and the smoking flavor of the cigarettes is improved; through carbonizing treatment, the internal adsorption specific area of the walnut shells can be remarkably increased, the absorption effect ofthe particles on hazardous substances of cigarette smoke is intensified, and meanwhile the special burnt flavor is given to the plant particles.
Owner:CHINA TOBACCO YUNNAN IND

Fruit and evgetable fresh-keeping agent and its production method

InactiveCN1234283CStrong adsorption and degradationSlow postharvest ripeningFruit and vegetables preservationSorbentOxygen
The fruit and vegetable fresh-keeping agent is placed in the paper bag or cloth bag. Its composition includes (1) active adsorbent, 0.5-5 portions, it is active carbon in which the potassium permanganate is adsorbed, active clay, attapulgite or diatoms; (2) oxygen absorbent, 0.5-5 portions, it is iron powder, (3) ethylene absorbent, 0.5-5 portions, it is zeolite or bentonite; (4). CO2 adsorbent, 0.5-5 portions, it is lime hydrate or coke molecular sieve; (5) antimicrobial agent, 1 portion, it is sodium benzoate; and (6) auxiliary agent, 1-10 portions, it is mixture formed from equi-mass sodium chloride and crystal sodium carbonate or mixture formed from equi-mass calcium chloride and crystal sodium carbonate. The adoption of said fresh-keeping agent can obtain obvious fresh-keeping effect.
Owner:NANJING UNIV

Fermented carbonated honeysuckle particle and preparation method and application thereof

The invention provides a fermented carbonated honeysuckle particle and a preparation method and application thereof. The fermented carbonated honeysuckle particle is prepared through the following steps that (1) a dyellatabacisoli L4-6 agent is prepared; (2) the dyellatabacisoli L4-6 agent is used for fermenting honeysuckle to obtain fermented honeysuckle; (3) the fermented honeysuckle is carbonated to obtain fermented carbonated honeysuckle; (4) fermented carbonated honeysuckle powder is placed on a fluidized bed to be dried, an adhesion agent is sprayed, the powder is adhered to form a particle, and the particle is continuously dried to obtain the fermented carbonated honeysuckle particle. The particle is fermented, so that special fragrance coordinating with cigarette smoke can be generated after the particle is applied to a cigarette, thereby not only enriching the cigarette fragrance, but also having the pharmacological effects of relieving sore throat, clearing heat, removing inflammation and the like; the particle is carbonated, so that the specific surface area of adsorption in the honeysuckle can be obviously increased, thereby enhancing the adsorption function of the cigarette smoke on harmful substances, and giving the plant particle with special burnt flavor.
Owner:CHINA TOBACCO YUNNAN IND

Preparation method of agricultural and forestry waste adsorbing material for treatment of printing and dyeing wastewater

The invention discloses a preparation method of an agricultural and forestry waste adsorbing material for treatment of printing and dyeing wastewater. The preparation method comprises the following steps: S1, premixing short-chain acid and long-chain acid, and carrying out a pre-reaction at a certain temperature for a certain period of time to obtain high-activity mixed acid; S2, uniformly blending bagasse, straw, straw fiber waste and the mixed acid, adjusting the moisture content of the formed mixture to a certain moisture content, putting the mixture into microwave equipment, and carrying out a reaction for a certain period of time at a certain power to obtain a mixed acid cellulose ester crude product; S3, carrying out washing, suction filtration and drying to obtain a mixed acid cellulose ester product; and S4, with sodium alginate as a forming agent, subjecting sodium alginate and the obtained mixed acid cellulose ester to heating and blending, and carrying out cooling, crosslinking and curing molding to obtain a spherical adsorbent. According to the method, the bagasse, straw and rice straw are used as raw materials to prepare composite cellulose ester through the compositeesterification effect of short-chain acid and long-chain acid, and the composite cellulose ester is compounded with sodium alginate to prepare the adsorbing material which can effectively treat printing and dyeing wastewater.
Owner:福建鸿燕化工有限公司

Air filtering cotton containing diatomite and with strong adsorptivity

The invention belongs to the technical field of hardware, relates to the technical field of filtering cotton and particularly relates to air filtering cotton containing diatomite and with strong adsorptivity. The air filtering cotton comprises a filtering cotton body, wherein the filtering cotton body comprises an air inlet surface layer and an air outlet surface layer as well as a flame-retardantnet layer, a first synthetic fiber, an active-carbon fiber layer, a second synthetic fiber layer and an antistatic layer which are arranged between the air inlet surface layer and the air outlet surface layer, and meanwhile, by arrangement of the multilayer composite structure, the structural strength of the filtering cotton is also improved; the fiber layers are synthesized by diatomite, so thatPM2.5 can be sieved from the synthesized fiber layers to play a role in surface filtration, harmful polar molecules in the harmful gases suspending in the air also can be intercepted in the surfacesand ducts of the synthesized fiber layers so as to achieve gas-solid separation, purify the air, enlarge the specific surface area of absorption and improve the purifying and filtering effect and theabsorbing performance; two layers of synthesized fiber layers are arranged and are different in density, so that the filtering and purifying effects and the absorbing performance are further improved.
Owner:太仓曌信金属制品有限公司

Preparation method and application of composite photocatalytic nano motor

The invention discloses a preparation method of a composite photocatalytic nano motor. The method comprises the following steps of: uniformly mixing multi-walled carbon nanotubes with an acid, and carrying out ultrasonic treatment to obtain acidified multi-walled carbon nanotubes; mixing the acidified multi-walled carbon nanotubes with ethanol to obtain a suspension; sequentially adding nano-aluminum, nano-silver, nano-silica sol and polytetrafluoroethylene into the suspension; carrying out ultrasonic treatment and oscillation to obtain CNTs-Ag-Al-PTFE; uniformly mixing copper oxide, aluminumoxide and hydrochloric acid to prepare a mixed solution; adding the CNTs-Ag-Al-PTFE into the mixed solution, and performing stirring reaction at room temperature; performing centrifugation and washing, and dispersing solids into distilled water, irradiating an obtained solution with a high-pressure mercury lamp; adding the obtained solution into a mixture of hydrogen peroxide-nano silica sol, performing stirring, separating, washing, drying and grinding at room temperature so as to obtain the composite photocatalytic nano motor. The preparation method has the advantages of simple preparation process and easy operation; and the prepared material can effectively remove harmful microorganisms in a water body in a wastewater treatment process.
Owner:KUNMING UNIV OF SCI & TECH

A fermented carbonized walnut shell particle and its preparation method and application

The invention provides fermented-carbonized-walnut-shell particles and a preparing method and application thereof. The preparing method of the fermented-carbonized-walnut-shell particles includes thefollowing steps that (1) tobacco soil Dyella L4-6 fungicide is prepared; (2) walnut shells are fermented with the tobacco soil Dyella L4-6 fungicide, and the fermented walnut shells are obtained; (3)the fermented walnut shells are carbonized, and the fermented-carbonized walnut shells are obtained; (4) fermented-carbonized-walnut-shell powder is put on a fluidized bed and dried, a binding agent is sprayed, the powder is bound to form the particles, drying continues to conduct, and the fermented-carbonized-walnut-shell particles are obtained. According to the fermented-carbonized-walnut-shellparticles and the preparing method and application thereof, the walnut shells serve as raw materials, the environmental-friendly effect is achieved, and the effect of turning waste into wealth is achieved; the fermented-carbonized-walnut-shell particles are fermented and applied to cigarettes, then special fragrance matched with cigarette smoke can be generated, the cigarette fragrance is enriched, and the smoking flavor of the cigarettes is improved; through carbonizing treatment, the internal adsorption specific area of the walnut shells can be remarkably increased, the absorption effect ofthe particles on hazardous substances of cigarette smoke is intensified, and meanwhile the special burnt flavor is given to the plant particles.
Owner:CHINA TOBACCO YUNNAN IND

An orifice-type fresh air introduction purification device

The invention discloses a perforated plate fresh air introducing and purifying device and belongs to the technical field of air energy recycling and high efficiency energy saving in ventilation equipment. The device comprises a perforated plate purifying, energy recycling and heating core, a fresh air machine, an exhaust fan and an electric cabinet, wherein the size of the perforated plate purifying, energy recycling and heating core is 160mm*160mm to 350mm*350mm; the perforated plate purifying, energy recycling and heating core comprises 45 to 2400 pieces of perforated plate semi-closed conductive combinations and corrugated pieces; each perforated plate semi-closed conductive combination comprises a perforated plate, conductive bands, purifying copper sheets A and B, and heating copper sheets A and B; a square hole shaped fresh air channel with the side length being 1 to 20mm is formed in the perforated plate; the conductive bands are printed or sprayed on the two outer surfaces of the perforated plate; the purifying copper sheets A and B and the heating copper sheets A and B are respectively adhered to the two ends of the conductive bands on the two outer surfaces of the perforated plate; the perforated plate semi-closed conductive combinations and the corrugated pieces form 90 degrees and are assembled alternately and crosswise. The perforated plate fresh air introducing and purifying device has the benefits that new pollutant, such as ozone and the like, is not produced, energy can be efficiently recycled, condensation cannot be produced when the device is used in cold regions, and meanwhile the purification efficiency is high.
Owner:NINGBO DONGDA AIR CONDITIONING EQUIP

Fermented carbonization bodinier elsholtzia herb particle as well as preparation method and application thereof

The invention provides a fermented carbonization bodinier elsholtzia herb particle as well as a preparation method and application thereof. The particle is prepared by a method with the following steps of (1) preparing tobacco soil Dyella L4-6 bacterial agents; (2) fermenting bodinier elsholtzia herb by using the tobacco soil Dyella L4-6 bacterial agents to obtain fermented bodinier elsholtzia herb; (3) performing carbonization treatment on the bodinier elsholtzia herb to obtain fermented carbonization bodinier elsholtzia herb; (4) putting the fermented bodinier elsholtzia herb powder onto a fluidized bed to be dried; spraying bonding agents for bonding powder into particles; continuously performing drying to obtain the fermented carbonization bodinier elsholtzia herb particles. After theparticle is subjected to fermentation treatment and is applied to cigarettes, special aroma in harmonious with the cigarette smoke gas can be generated; the cigarette aroma is enriched; the cigarettesmoking flavor is improved; the pharmacological effects of relieving sore throat and the like are also realized. Through carbonization treatment, the adsorption specific surface area inside the bodinier elsholtzia herb can be obviously increased; the adsorption effect on the harmful substances in the cigarette smoke gas can be enhanced; meanwhile, the special parched perfume is given to the plantparticles.
Owner:CHINA TOBACCO YUNNAN IND

Oil refining wastewater composite treating agent and preparation method thereof

The invention discloses an oil refining wastewater composite treating agent and a preparation method thereof. The treating agent is composed of porous minerals, a foaming agent and a chitosan solution. The preparation method comprises the steps of: roasting the porous minerals; adding the foaming agent; spraying the chitosan solution; granulating by a granulating machine; and foaming by heating in an oven to produce the oil refining wastewater composite treating agent. For heavy metal ions, the chitosan is good in chelation; the foaming agent increases the specific surface area; and due to non-uniform mixing of the mineral materials and the foaming agent, different grain sizes of the granulated particles and different densities of the produced oil refining wastewater composite treating agents, partial treating agents can float on the water level and partial treating agents can be dispersed in the water to adsorb floating oil, emulsified oil, dispersed oil and the like in the wastewater. The long molecular chain of the chitosan can net and flocculate large pollutant particles; after the chitosan is compositely foamed with the mineral material with big specific surface area, contact points with the pollutants are added; and the adopted mineral material and chitosan are nontoxic and harmless, so that no secondary pollution is caused. The preparation method, disclosed by the invention, has the advantages of simple production technology and low production cost.
Owner:CHONGQING UNIV +1

High-temperature-resistant high-sensitivity gas sensor and preparation method thereof

The invention belongs to the technical field of gas sensing, and particularly relates to a high-temperature-resistant high-sensitivity gas sensor and a preparation method thereof. The method comprises the following steps: extending a layer of p-type SiC on an n-type heavily doped SiC substrate; epitaxially growing a layer of n-type heavily doped SiC on the p-type SiC to form an npn sandwich structure; a triangular groove is formed in the sandwich structure; depositing a layer of oxide dielectric material in the groove; and depositing a layer of precious metal nanoparticles on the oxide dielectric material. High-temperature and high-sensitivity gas sensing detection is realized by utilizing the characteristic of high temperature resistance of a SiC material and the advantage of high specific surface area of precious metal nanoparticles.
Owner:有云信息科技(苏州)有限公司

A kind of pervaporation membrane for separating N,N-dimethylformamide aqueous solution and preparation method thereof

The invention discloses a pervaporation membrane for separating N,N-dimethylformamide aqueous solution, and the pervaporation membrane is a composite membrane formed of polyvinyl alcohol and polyacrylic acid doped with modified silicon dioxide . The present invention also discloses the preparation method of the above-mentioned pervaporation membrane for separating N,N-dimethylformamide aqueous solution, specifically: mixing polyvinyl alcohol, polyacrylic acid and water, and obtaining polyvinyl alcohol aqueous solution after heating; The polyvinyl alcohol aqueous solution is added to the modified silica, and after stirring and mixing, the cast film solution is obtained, and the film is cast into a film; the obtained film is placed in the cross-linking solution for cross-linking treatment, and then dried to obtain the required pervaporation membrane. The present invention can effectively increase the number of hydrophilic groups inside the composite membrane by doping the modified silicon dioxide in the polyvinyl alcohol and polyacrylic acid composite membrane, thereby increasing the hydrophilicity of the composite membrane, and further improving the membrane's ability to separate DMF aqueous solution. The permeation flux and separation coefficient at that time can improve the separation performance of the membrane.
Owner:SOUTHEAST UNIV

Water-repellent oil-absorbing three-dimensional porous cotton fabric preparation method

The invention provides a water-repellent oil-absorbing three-dimensional porous cotton fabric preparation method, which includes alternately stacking terry fabrics and three-foundation cotton fabricsand then connecting the terry fabrics and the three-dimensional cotton fabrics through connecting yarns, or interweaving warp yarns and weft yarns through binding yarns by a three-dimensional loom, soaking the yarns in a water-repellent oil-absorbing finishing agent, and drying to obtain a water-repellent oil-absorbing three-dimensional porous cotton fabric. The water-repellent oil-absorbing three-dimensional porous cotton fabric prepared by the method has a loose porous structure and a large adsorption specific surface area, has better oil spill adsorption and release capability after water-repellent and oil-absorbing finishing, meanwhile, the fabric has good mechanical properties, can be recycled for multiple times, and can adsorb organic liquids about 20 times of the weight of the fabric in less than one minute. Recycled cotton and the fabric thereof can further be used as cotton fabric with a three foundation structure, the fabric has the advantages of low cost, good performance and rich material sources, after use, the fabric can be used for combustion power generation, and has the advantages of high heat, high enthalpy, secondary utilization without ash and the like, and thusthe industry's demands for new oil spill adsorption materials are met.
Owner:TARIM UNIV

A fermented carbonized phoenix tea granule and its preparation method and application

The present invention provides a fermented carbonized phoenix tea granule and its preparation method and application, which are prepared by the method comprising the following steps: (1) preparation of tobacco soil Daisybacteria L4-6 inoculum; (2) utilization of tobacco soil Fermenting fermented fermented tea with Daibella L4‑6 bacterial agent to obtain fermented fermented fermented tea; (3) carbonizing fermented fermented fermented tea to obtain fermented carbonized fermented fermented tea; (4) fermenting carbonized fermented fermented tea powder Put it on a fluidized bed for drying, spray the binder, bond the powder to form granules, and continue drying to obtain fermented carbonized phoenix tea granules. The granules are fermented and applied to cigarettes, which can produce a special aroma that is in harmony with cigarette smoke, enrich the aroma of cigarettes, improve the taste of cigarettes, and have pharmacological effects such as relieving sore throat; after carbonization treatment, it can significantly increase The internal adsorption specific surface area of ​​Fengwei tea strengthens the adsorption of particles to harmful substances in cigarette smoke, and at the same time endows plant particles with a special burnt aroma.
Owner:CHINA TOBACCO YUNNAN IND

Leaf vegetable day-and-night filtering diffraction induced resistance, bacteriostasis and metabolism-regulating fresh-keeping film

The invention provides a leaf vegetable day-and-night filtering diffraction induced resistance, bacteriostasis and metabolism-regulating fresh-keeping film; a preservative film inner layer is preparedby the following steps: putting a mixture into a three-layer co-extrusion film blowing machine for co-extrusion plasticizing to form a film, uniformly mixing 65% of polypropylene plastic, 2% of ZnSO4, 8% of walnut peel carbon, 20% of nano CaCO3 and 4% of nano TiO2, granulating, blowing, and controlling the processing temperature at 148-154 DEG C to obtain the preservative film inner layer; a middle layer is composed of 70% of high-density polyethylene, 6% of degradable plastic and 24% of nano CaCO3, and the extrusion temperature is 240 DEG C; an outer layer is composed of 75% of linear low-density polypropylene, 20% of degradable plastic and 5% of red mud, and the extrusion temperature is 220 DEG C. Aiming at the problems of chlorophyll degradation and yellowing, pathogenic bacteria infection and rotting and massive accumulation of ethylene in a fresh-keeping bag in the leaf vegetable storage process, a LED cold light source is adopted for day and night radiation, and a red filler isadded into the outer layer film of the fresh-keeping film to filter out light rays of other wave bands except red light.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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