68results about How to "Reduce the adsorption rate" patented technology

The invention provides a preparation method for a novel graphene polyion liquid composite material. The method comprises the following steps of 1, preparing graphene oxide; 2, preparing ionic liquid 1-[(2-methylacryloyl)-ethyl-3-(MEBIm-Br); 3, using the 1-[(2-methylacryloyl)-ethyl-3-(MEBIm-Br) as imidazole ionic liquid to obtain the novel graphene polyion liquid composite material (rGO-poly-MEBOm-B and rGO-poly-MEBIm-Br). The obtained novel graphene polyion liquid composite material not only can be applied to the aspects of biological sensors, super-capacitors and the like and but also has the good performance on the aspects of adsorbing and separating pollutants.

The invention relates to a fluorine-removing agent with high efficiency and its preparation method and application. The invention includes the raw material agitation, the formation and the roasting which contains laterite, the aluminum salt, of which the weight dosage of the aluminum salt is 0-30% according to the gross weight of the raw material, the fluorine-removing agent can widely used in the profession of the fluorine sewage treatment, the high fluorine surface water purification. The invention is simple craft, and operation.

The invention discloses a preparation method of a porous fiber gel polymer electrolyte. According to the preparation method, firstly, ionic polymer polyurethane polyglycol ester lithium is prepared via condensation polymerization, and then is mixed with polyvinylidene fluoride at a mass ratio of 1:1-1:4; an obtained mixture is dispersed into a N,N-dimethylformamide solution; an obtained mixed material is subjected to electrostatic spinning and drying so as to prepare blended polymer porous fiber membranes; the blended polymer porous fiber membranes are dried, and a liquid electrolyte is absorbed by the blended polymer porous fiber membranes for activation so as to obtain the porous fiber gel polymer electrolyte with a thickness of 50 to 70<mu>m, wherein the mass of the liquid electrolyte absorbed by the blended polymer porous fiber membranes accounts for 200 to 400wt% of that of the blended polymer porous fiber membranes. The optimal ionic conductivity of the porous fiber gel polymer electrolyte is 5.43*10<-3>S/cm, electrochemical stability window is about 5.0V, and application prospect in the field of polymer lithium ion battery is promising.

The invention provides a preparation method of super-hydrophobic graphene sponge. The preparation method comprises the specific steps: (1) cleaning and drying sponge; (2) carrying out plasma processing on the sponge processed in the step (1); (3) soaking the sponge processed in the step (2) into graphene oxide dispersion liquid, and adding hydrazine hydrate; and (4) heating mixed liquid prepared in the step (3) to 85-95 DEG C, maintaining for 0.5-24 hours, taking out the sponge, and drying, so as to obtain the super-hydrophobic graphene sponge.

The invention belongs to the field of agricultural and sideline product processing and utilization technology with high added value, and discloses a weak bitter corn oligopeptide with high content of alanine and leucine, and a preparation method of the weak bitter corn oligopeptide. The method comprises the steps of: (1) dispersing and hydrating corn gluten meal; (2) carrying out gelatinization and alpha-high temperature amylase enzymolysis, degreasing and removing starch; (3) carrying out enzymolysis; (4) carrying out enzyme deactivation and decoloration; and (5) carrying out rough filtration, ultrafiltration and nanofiltration, and drying to obtain the weak bitter corn oligopeptide. The weak bitter corn oligopeptide contains 85.42-87.63% by mass of protein percent, 92.44-94.21% by mass of peptide with the relative molecular weight being less than 1000Da, 6.75-6.94% by mass of alanine, 14.12-14.66% by mass of leucine and 1.12-1.36% by mass of free amino acid. The weak bitter corn oligopeptide with high content of alanine and leucine can be widely used as raw material of health-care food and common food, and especially can be used in products used for sobering up and protecting the liver.

The invention relates to preparation of an amidoxime modified magnetic nano biological adsorbent and a method for adsorbing low-concentration uranium by utilizing the amidoxime modified magnetic nanobiological adsorbent. The preparation comprises the following steps: modifying magnetic nano Fe3O4 by utilizing amidoxime; grafting the amidoxime modified nano Fe3O4 on aspergillus niger through cross-linking reaction to obtain an amidoxime modified magnetic nano Fe3O4-aspergillus niger biological adsorbent. Lone pair electrons on an electron-donating group of the amidoxime based adsorbent and uranyl ions can form a coordination bond or a stable structure, so that the adsorption speed and the adsorption capacity of the material on the uranyl ions can be effectively improved. The uranium compatible property of the aspergillus niger, the magnetic property of the nano Fe3O4 and the high selectivity and affinity of an amidoxime group on the uranium are combined and the aspergillus niger is a biological material, so that the amidoxime modified magnetic nano biological adsorbent has the advantages of good adsorption property, simplicity in operation, low production cost, low energy consumption, easiness for solid-liquid separation and the like; the product has a good application prospect in the fields of prevention and control of radioactive pollution and uranium cyclic utilization.

The invention relates to a preparation method and application of a biochar/iron oxide composite material. Iron oxide particles are loaded to the surface of biochar by a simple coprecipitation method to form the composite material with good pore structure and large specific surface area, and the composite material is applied to removal of phosphates in aqueous solutions. The synthesis conditions ofbiochar/iron oxide are studied to compare the phosphate removal effect of the synthesized material. By studying the adsorption properties of the biochar/iron oxide composite material on phosphates inwater, optimal adsorbent dosage, adsorption time, adsorption concentration and other values can be obtained. Biochar has a porous structure and large surface area, also has wide sources, and is low in cost. The surface of the iron oxide contains a lot of hydroxyl radicals, which can be converted into positively charged adsorption sites. The biochar/iron oxide composite material prepared by the method has good removal ability on phosphates in water, and also has strong stability and recyclability.

The invention relates to a composite film for flour packaging and a manufacturing method thereof. The composite film comprises three layers (figure. I), namely a PET (polythylene terephthalate) litho-coated thin film, a PE (polyethylene) thin film and a polyurethane adhesive layer arranged between the PET litho-coated thin film and the PET thin film, wherein the PET litho-coated thin film comprises three layers (figure. II), namely a PET coated thin film, a printed layer on the coated thin film and a polyurethane adhesive layer arranged between the PET coated thin film and the printed layer; the PET coated thin film comprises three layers (figure. III), namely a PET base material, a modified crylic acid coating layer on the surface of the base material and a polyurethane adhesive layer arranged between the PET base material and the modified crylic acid coating layer; the modified crylic acid coating layer is obtained by coating the surface of the PET base material with crylic acid emulsion through a coating technology; the modified crylic acid emulsion is prepared from the following raw materials in percentage by weight: 5-10 percent of a functional monomer, 8-12 percent of an adhesive monomer, 6-8 percent of a cohesion monomer, 0.02-0.08 percent of chondroitin sulfate, 0.2-0.5 percent of an emulsifier, 0.05-0.2 percent of a defoaming agent, 0.05-0.1 percent of an initiator, 0.02-0.1 percent of electrolyte, 1-3 percent of ammonia water and 67-75 percent of deionized water. The composite film disclosed by the invention can well achieve the effect of electrostatic dust (powder) absorption during flour packaging and is high in thermal sealing performance.

The invention discloses an antibacterial and dust adsorption-free spray-free PP material and a preparation method thereof. The antibacterial and dust adsorption-free spray-free PP material includes, by weight parts, 100 parts of PP, 10-20 parts of hygroscopic ionic polymer, 3-6 parts of compatibilizer, 2-5 parts of antibacterial agent, 0.5-3 parts of metal powder pigment, 0.5-1 part of dispersingagent, 0.5-1 part of antioxidant and 0.2-0.5 part of infiltrant. The prepared material has the advantages of excellent metal spray-free effect and good dust adsorption resistance and antibacterial property, the problem of flow marks of a conventional metal spray-free effect material can be effectively solved, and the antibacterial and dust adsorption-free spray-free PP material is suitable for occasions where bacteria are bred easily and dust adsorption is high, and the antibacterial and dust adsorption-free spray-free PP material has a wide range of uses in the fields of automobiles, home appliances, and household goods.

The invention relates to a method for cleaning a curtain. The method for cleaning a pure polyester fabric curtain is characterized in that the drum capacity of a washing machine is 25-60 kg, and the method sequentially comprises the following steps: main washing, primary uniform distribution, primary dehydration, primary rinsing, secondary uniform distribution, secondary dehydration, secondary rinsing, tertiary uniform distribution, dehydration drying and dryer drying; and a laundry detergent and a finishing agent used in the method do not contain phosphorus or fluorescent agents. The method for cleaning the pure polyester fabric curtain has the advantage of good stain removal effect and no damages to the curtain.

The invention discloses a cement production raw material iron removal device in the field of cement production equipment, which comprises a driving roller. The outer surface of the driving roller is in transmission connection with a magnetic conveyor belt, the outer surface of the magnetic conveyor belt is in transmission connection with a conveyor belt, and the interior of the conveyor belt is in transmission connection with a driven roller; supports are fixedly connected to the two ends of the driven roller, a hopper is fixedly connected to one end of each support, a refining device is fixedly connected to the middle of each support, and an electromagnetic iron removal box is arranged at the bottom end of the driving roller. In use, the driving roller drives the conveyor belt to enable materials to ascend, and when the materials reach the highest position to be fed into the electromagnetic iron removal box, due to the action of the magnetic conveyor belt in the conveying belt, waste with high iron content is attracted to the conveyor belt to be conveyed downwards; when themagnetic conveyor belt moves upwards, the materials on the conveyor belt fall off without the action of magnetic force, so that the iron-containing waste can be preliminarily screened in the feeding process.

The invention relates to a preparation method of a stable type carbon paste electrode, belonging to the technical field of electrochemical analysis. The method comprises the following steps: by using fluorite ore powder and a sodium silicate solution as raw materials, preparing crystallized modifying liquid and placing a carbon paste electrode in the modifying liquid, performing high-temperature crystallization, loading nanometer cryolite particles on the surface of a carbon paste electrode material, meanwhile, modifying the surface of the carbon paste electrode to form stable fluoroaluminate ions, and reducing the surface energy of the material, thus reducing the adsorption rate of a tested object on the surface of the material after finishing tests of the material, and improving the stability of the surface physicochemical properties of the carbon paste electrode. By crystallizing the nanometer cryolite particles on the surface of the electrode and adding nano particles on the surface of the electrode, the area of the electrode is effectively increased, meanwhile, as nanometer cryolite has electropositivity, electronegative probe ions are more helped to reach an electrode interface to react, the response effect of the carbon paste electrode to signals is effectively improved, and the carbon paste electrode has excellent sensitivity.

The invention discloses a real-time control-based natural gas liquefied raw gas filtering device. The real-time control-based natural gas liquefied raw gas filtering device comprises a filtering kettle body; a solid particle filtering layer, a dewatering layer and an acid gas filtering layer are arranged in the filtering kettle body; activated carbon is arranged in the solid particle filtering layer; molecular sieves are respectively arranged in the dewatering layer and the acid gas filtering layer; an acid gas collecting chamber is formed in the corresponding position of the acid gas filtering layer in the filtering kettle body, and extends along the side wall of the filtering kettle body; the acid gas collecting chamber is connected with the interior of the filtering kettle body through a collecting pipeline; the acid gas collecting chamber is connected with a plurality of air pumps. According to the real-time control-based natural gas liquefied raw gas filtering device, solid particles, water and the acid gas in raw gas can be effectively collected, meanwhile, the filtering device disclosed by the invention can be kept in a good filtering state by performing real-time precipitation treatment on the acid gas, so that the filtering efficiency and the effect of the filtering device are both improved.

The invention discloses a preparation method of an iso-paraffin composition. The preparation method specifically comprises the following steps: mixing Fischer-Tropsch crude liquid wax, removing lightcomponents and heavy components, carrying out n-alkane adsorption and separation, and rectifying separated iso-paraffin to obtain an iso-paraffin composition product. The provided preparation method has the advantages of fine process, abundant products, and low energy consumption. The raw materials do not contain sulfur or nitrogen, has an extremely low content of aromatic hydrocarbons, and do notcontain cyclo-paraffin. The obtained iso-paraffin composition is high in purity, free of peculiar smell, narrow in distillation range, non-toxic, colorless, high in chemical stability, low in condensation point, low in conductivity, excellent in wetting and surface diffusion force and high in flash point, and is a high-quality chemical raw material.

The invention discloses an antibacterial dust adsorption resistant composite plastic master batch, which is prepared from the following raw materials in parts by weight: 45-50 parts of polypropylene, 25-35 parts of a filler, 5-7 parts of a plasticizer, 4-6 parts of a lubricant, 3-5 parts of a polyhydroxy chemical coupling agent, 3.5-4.5 parts of a performance additive, 1-2 parts of a composite antioxidant, 1-3 parts of a composite antibacterial agent, 1-3 parts of a composite antistatic agent, 1-2 parts of a light stabilizer, 1-2 parts of a flexibilizer, 2-4 parts of hydroxymethyl cellulose, 1-3 parts of an impact modifier, 4-6 parts of a porous ceramic preform, 1-3 parts of a nano flame retardant and 4-6 parts of carbon nanofibers. According to the invention, the defects in the prior art are overcome, the design is reasonable, the process flow is simple, the antibacterial and dust-adsorption-resistant effects are good, and the social use value and the application prospect are relatively high.

The invention relates to a curtain cleaning method, in particular to a cleaning method for a curtain made of an adhesive material. The drum capacity of a washing machine is 25-60 kilograms. The cleaning method successively comprises the following steps: main washing, primary cloth uniformizing, primary dehydrating, primary rinsing, secondary cloth uniformizing, secondary dewatering, secondary rinsing, ternary cloth uniformizing, dewatering and spin-drying, fabric spreading and air-drying. A laundry detergent and a conditioning agent do not contain phosphorus or a fluorescent agent. The cleaning method for the curtain made of the adhesive material has the advantages of good dirt removal effect and zero damage to the curtain.

The invention relates to a washing method of a curtain. According to the washing method of the cotton and linen curtain, the capacity of a drum of a used washing machine is 25-60 kg, and the method sequentially comprises steps as follows: primary washing, first uniform distribution, first dewatering, first blanching, second uniform distribution, second dewatering, second blanching, third uniform distribution, dewatering, spin drying, fabric stretching and airing. A laundry detergent and a care agent do not contain phosphorus and a fluorescent agent. The washing method of the cotton and linen curtain has the advantages that the dirt removal effect is good and the curtain is not damaged.