54results about How to "Large oil absorption" patented technology

The invention discloses a preparation method for superhydrophobic superoleophilic straw fiber, belonging to the technical field of functional materials. The objective of the invention is to provide the preparation method for the superhydrophobic superoleophilic straw fiber which has cheap and easily-available raw materials, high oleophilic property and biodegradability. The method in the invention comprises the following steps: step 1, crushing straw, soaking the crushed straw in an alkali solution and carrying out pretreatment, and carrying out washing and drying; step 2, with tetraethyl orthosilicate as a silicon source, ammonia water as a catalyst and absolute ethyl alcohol as a solvent, carrying out in-situ synthesis so as to obtain straw fiber with surface loaded with silicon dioxide particles; step 3, dissolving zinc nitrate in a sodium hydroxide aqueous solution, and carrying out vigorous stirring, centrifugal separation and drying so as to obtain zinc oxide particles; step 4, preparing octyltriethoxysilane modified liquid; and step 5, taking the straw fiber in the step 2 and zinc oxide in the step 3, adding the straw fiber and the zinc oxide into the above-mentioned modified liquid, carrying out uniform mixing and dispersing, carrying out filtering separation so as to obtain the straw, and carrying out drying. The superhydrophobic superoleophilic straw fiber prepared by the method in the invention has excellent superoleophilic property and wide application space in the field of marine spilled oil cleaning.

The invention relates to a production method of modified red mud complexed polyvinyl chloride colorized rigid plastic. The method is characterized in that: graded red mud with a specification of -800 meshes is modified by using a titanate coupling agent; 35-45 parts of the modified red mud, 100 parts of polyvinyl chloride, 5-10 parts of an impact modifier, 3-5 parts of a stabilizing agent, and 0.2-0.8 parts of a lubricating agent are subject to high-speed mixing, melt extrusion and filming, such that the colorized rigid plastic is obtained. According to the invention, red mud is subject to a modification treatment, such that the compatibility of the red mud and polyvinyl chloride is substantially improved. When the plastic is subject to the filming treatment, a monotonic brownish red color of the red mud complexed polyvinyl chloride substrate plastic is changed, a woody pattern is provided, the color is diversified, and the plastic is provided with a good appearance.

The invention discloses orientation groove micro / nano-fibres and a preparation method for the same. The orientation groove micro / nano-fibres comprise common groove micro / nano-fibres or beaded groove micro / nano-fibres, and the diameters of the fibres are 50 nanometres to 10 microns. The preparation method for the same comprises the following steps of: preparing polymer solution containing a high-volatility solvent and a low-volatility solvent, and preparing micro / nano-fibres by virtue of an electrospinning technique; preparing micro / nano-fibres with different groove structures, for example, different groove quantities, groove depths, groove distances and the like by adjusting process parameters of a solvent ratio, a solution concentration, a relative humidity and the like. The orientation groove micro / nano-fibres disclosed by the invention have the advantages of large specific surface area, high porosity and the like, and have a wide application prospect in the fields of superhydrophobicity, filter, tissue engineering and the like; the preparation method disclosed by the invention is capable of directly preparing the orientation groove micro / nano-fibres without the need of any aftertreatment process, simple to operate, stable in process, low in cost, and capable of realizing batch production.

The invention discloses a porous oil absorption material and a preparation and regeneration method thereof. The porous oil absorption material is a porous ceramic material uniform in pore distribution and with the pore diameter distribution range of 0.1-100 micrometers and above 40% of porosity, the porous oil absorption material is prepared from Al2O3 and SiO2, surface activation treatment is conducted on the porous oil absorption material so as to improve the surface hydrophilicity of the material, and the porous oil absorption material is soaked with modified liquid to obtain super-strong oil absorption capacity. The porous oil absorption material having an oil contamination removing function has the advantages of being simple in modification process, low in modification cost, high in oil absorption speed, large in oil absorption amount, high in water body purification degree and convenient to regenerate and the like.

The invention relates to a method for preparing a three-dimensional porous oil absorption material. The method comprises the steps that polylactic acid is dissolved in a solvent and stirred to be dissolved, and a polylactic acid solution is obtained; under the stirring condition, a poor solvent is dropwise added into the polylactic acid solution till the solution turns turbid from clear, still standing is carried out at room temperature, replacement and vacuum drying are carried out, and the three-dimensional porous oil absorption material is obtained; or under the stirring condition, natural fibers are added into the polylactic acid solution, then the poor solvent is dropwise added till the solution phase is separated, still standing is carried out at room temperature, replacement is carried out, and the three-dimensional porous oil absorption material is obtained. The novel oil absorption material is controllable in aperture size and shape and can be suitable for different application occasions.

The invention provides a preparation method for regenerative polyester staple fiber, comprising the following steps: drying polyester regenerated material, mixing the polyester regenerated material with inorganic granule, melting by a screw melt extrusion spinning machine, spinning, cooling, bundling and applying oil, falling bucket in reciprocating manner and bundling; carrying out first-stage oil bath traction by a traction machine, carrying out second-stage steam traction by the traction machine, carrying out tension heat shaping by the traction machine, cooling and applying oil, carrying out three-stage tension by the traction machine, and cutting by a staple fiber cutting machine; the method has low production cost, high efficiency, energy-saving and environment-friendly performances; the fiber prepared by the invention has high density, large oil absorbing quantity and has good dispersity, and is not easy to intertwist, thereby improving mechanical property, remarkably reducing thermal shrinkage and aging resistance; and, the bond stress with the aggregate is enhanced in the asphalt concrete, thereby remarkably improving the reinforcing effect of asphalt concrete.

The invention relates to a composite calcium carbonate modified PVC (polyvinyl chloride) rolling film and a preparation method thereof. The preparation method comprises the preparation of composite calcium carbonate and the preparation of the composite calcium carbonate modified PVC rolling film. According to the composite calcium carbonate modified PVC (polyvinyl chloride) rolling film and the preparation method thereof, the composite calcium carbonate is formed by mixing active water-ground calcium carbonate and active nano-calcium carbonate, the production process is simple, the preparing costs are low, the prepared composite calcium carbonate is high in activating rate, and the needed coupling agents are small, can coat the surface thin layers of particles evenly and stably and well control the particle size of the processed particles. When the composite calcium carbonate which is prepared by mixing the active water-ground calcium carbonate and the active nano-calcium carbonate is used for preparing the PVC rolling film, the agglomeration of calcium carbonate particles is avoided, and the prepared rolling film has good mechanical properties.

The invention relates to a preparation method of a high oil-absorption material based on an invasive plant. The method comprises the following steps: crushing stalk of an invasive plant-solidago Canadensis, pre-treating by an aqueous alkali and ethanol solution, adding in gelatin solution, orderly adding a hybrid reaction monomer, an initiator and a crosslinking agent, mixing under an ultrasonic cleaner to eliminate the bubble, flowing through a condensing reflow device, warming and reacting under the magnetic force stirring effect, washing by hot water after the reaction, and drying to obtain the invasive plant based oil-absorption material. The method provided by the invention is simple to operate, the ultrasonic cleaner can be used for promoting the reaction, the raw material is wide in resource, the utilized invasive plant is distributed in more than ten provinces and cities in China at present, the production cost of the product is reduced, the reclamation and environmental protection are realized, the oil-absorption multiplying power of the obtained product to the long-chain oil reaches a maximum of 25g / g.

The invention relates to a preparation method of a fiber material for an asphalt pavement and an application of the fiber material in modified asphalt. The problem that environment pollution is relieved by utilizing waste straw materials is solved. The preparation method comprises the following steps: 1, separating the skin and pulp of a corn straw, and cleaning the straw skin; 2, cutting the dried straw skin into strips, crushing, grinding to obtain the ground corn straw fibers; 3, immersing the ground corn straw fiber into a sodium hydroxide solution with the mass concentration of 0.25%-3%,carrying out constant-temperature stirring reaction at the temperature of 50-90 DEG C for 15-60 minutes, and washing to obtain the straw fiber material for the asphalt pavement. The straw fiber is used as an external admixture into the modified asphalt. The corn straw fiber material is used in asphalt mortar, the fiber distribution is more uniformly dispersed, the straw fiber has good oil absorption performance, and the oil absorption rate reaches more than 25.

The invention provides a dry-cleaning composition for hair. The composition is prepared from, by mass, 60-80 parts of propane and butane, 15-30 parts of absolute ethyl alcohol, 2-15 parts of starch particles and 0.2-2 parts of an anti-flocculating agent. The invention further provides a method for preparing a dry-method shampoo through the dry-cleaning composition for the hair. The dry-cleaning composition has a good effect of removing fat of the hair and scalp, water resources are saved, application amount of the shampoo is reduced, the damage to the hair and scalp is reduced, and convenienceis provided for quick care. According to the dry-cleaning composition, by adding the specific anti-flocculating agent, the composition has good homogeneity and stability and can be preserved and usedfor a long time. The dry-cleaning composition is mild in performance and free of stimulation, cannot cause dryness and itch of the hair and scalp, is free of residues, cannot generate dandruff feeling, cannot generate static electricity and is good in use feeling.

The invention relates to one kind of preparation methods of the potent modified fillers strong magnesium powder, the method's technological process is: Taking light burning magnesium powder and talcum powder from raw materials, the original powder shares proportion according to weight , the ratio of the light burning magnesium powder is 40-70, the ratio of the talcum powder is 60-30; After weighing accurately, throwing them into the high-speed mixer to stir under higher temperature, the temperature is controlled below 100 degree C, simultaneously spraying into surface treatment reagents ; The related surface treatment reagent refers to one kind or the combination of two kinds of the silicon hydride resin acceptor and the stearic acid, the amount is 0.3-0.5% of the total weight of the light burning magnesium powder and the talcum powder. Comparing with the existing technology, the benefits of this invention consists: realizing the extensive and functional application of composite materials, reducing the cost of high-quality fillings, using mineral resources more effectively.

The invention discloses a low-temperature quick-drying polymer-based conductive adhesive, which comprises a component A and a component B. The mass ratio of the component A to the component B is (10-15): 1, and the component A comprises polymer matrix resin, a conductive filler (a mixture of copper powder and nano-copper-loaded graphene), a wetting dispersant, a thixotropic agent and a curing agent. The preparation method comprises the following steps: S1, dewatering the polymer matrix resin, adding a wetting dispersant, a thixotropic agent and a flexibilizer into the polymer matrix resin, anduniformly stirring and dispersing; S2, adding a conductive filler into the material obtained in the step S1, uniformly dispersing to obtain the component A, and sealing at normal temperature for later use; S3, uniformly mixing a solvent, a curing agent and a curing accelerator to obtain the component B, and sealing the component B at normal temperature for later use. According to the polymer-based conductive adhesive disclosed by the invention, a mixture of the copper powder and the nano-copper-loaded graphene slurry is introduced as a conductive filler, so that the conductive performance ofthe conductive adhesive is greatly improved, and the conductive adhesive has a more stable conductive path.

The invention belongs to the technical field of functional material preparation, and particularly relates to a hexagonal boron nitride porous microsphere and a preparation method thereof. The preparation method comprises the following steps: adding water into boric acid, 2-methylimidazole and a template agent, fully dissolving, and drying to obtain uniform precursor powder; carrying out high-temperature reaction on the precursor powder in an ammonia gas atmosphere to obtain hexagonal boron nitride powder filled with a template agent; and immersing the hexagonal boron nitride powder into water to dissolve the template agent, washing, filtering and drying to obtain the hexagonal boron nitride porous microspheres. The method is simple in process and equipment, the average particle size value of the prepared hexagonal boron nitride porous microsphere powder ranges from 1 micrometer to 6 micrometers, and the hexagonal boron nitride porous microsphere powder is high in purity, whiteness, porosity and oil absorption amount and suitable for being used as an oil-controlling and whitening additive of cosmetics.

The invention discloses a self-deflection oil filtering device for oil-containing waste gas treatment. The invention belongs to the technical field of oily waste gas treatment. Densely distributed segmental oil filtering fiber rods can be arranged at the lower end of an oil filtering plate; the characteristic that the upper and lower parts have deflection distances is utilized; an oil absorption gap between the adjacent segmental oil filtering fiber rods is eliminated; the contact sufficiency is improved in a space range; therefore, the oil filtering effect and efficiency of the oil-containingwaste gas are improved; after the segmental oil filtering fiber rods adsorb, saturate and gain weight; a lower movable oil filtering fiber rod on the segmental oil filtering fiber rods forces a middle deflection transition rod to generate self-deflection action due to the reason that the weight is increased; a pre-embedded magnetic pressure liquid release ball is used for carrying out extrusion action based on the magnetic repulsion effect, so that an emulsifier for oil stains is released and is guided to the emulsification-promoting disintegration microsphere, and the permeation of the emulsifier and the emulsification of the oil stains are accelerated by utilizing the characteristic that the emulsification-promoting disintegration microsphere fiercely releases gas and vibrates when meeting water.

The invention relates to a modified highly-oil-absorbing resin and a preparation method thereof, belonging to the technical field of oil-absorbing resin. The modified highly-oil-absorbing resin comprises a water phase and an oil phase and is prepared by using a suspension polymerization process. During selection of a formula, glycol dimethacrylate and divinyl benzene are used as a composite cross-linking agent; dibenzoyl peroxide (BPO) is used as an initiator; polymerization monomers are composed of methyl methacrylate, octadecyl acrylate, dodecanol acrylate and other components of a traditional oil-absorbing resin, and in addition, butadiene rubber with good lipophilicity is added into a polymerization system to improve the oil absorption amount of the oil-absorbing resin; and gasoline No. 200 is added as a pore forming agent to improve porosity of the resin and accelerate the oil-absorbing rate of the resin. The highly-oil-absorbing resin prepared under the condition of such a formula has toluene and xylene adsorption quantities of 25 to 35 g / g and 20 to 25 g / g respectively, and has good application prospects.

The invention relates to a preparation method of a biodegradable high oil absorption material, and belongs to the technical field of preparation of oil absorption materials. The method comprises the steps of firstly fermenting microorganisms by adopting caprolactone as a carbon source, forming a copolymer by the microorganisms and metabolites, adding a lipophilic group, and adsorbing and coating the oil by using a three-dimensional porous network structure between bacterial celluloses; modifying the celluloses through sodium periodate to reduce the crystallinity of the celluloses, exposing hydroxyl, modifying the hydroxyl through a silane coupling agent, and reacting with the hydroxyl to increase the hydrophobicity and lipophilicity; and finally carrying out drying treatment on the bacterial celluloses to obtain the biodegradable high oil absorption material. The used raw materials are biodegradable and can be recycled after absorbing the oil, a human body and the environment are not harmed, and the prepared oil absorption material is high in oil absorption, high in oil absorption rate and high in oil absorption speed.

The invention discloses an oil absorption decolorizing filter bag and a preparation method thereof. The filter bag is of a double-layer structure composed of an inner adsorption layer and an outer protective layer. The inner adsorption layer is prepared from polypropylene fiber, polyester fiber, polyimide fiber, meta-aramid fiber, polytetrafluoroethylene fiber, glass fiber and activated carbon fiber through the steps of needle punching and heat setting, the outer protective layer is a stainless steel fiber sintered felt layer, as polypropylene fiber has excellent hydrophobicity and lipophilicity, fast oil absorption speed, and large oil absorption capacity, the filter bag body can realize good oil absorption, at the same time the adsorbability of activated carbon fiber is utilized to reachan absorption effect on pigment molecules in filtrate, thus realizing good decolorizing performance of the filter bag, also by adding glass fiber, the inner adsorption layer can be used continuouslyat 260DEG C, meanwhile the inner adsorption layer can have good acid resistance and high folding and tensile strength, thereby improving the high-temperature resistance and corrosion resistance of theprepared filter bag.

The invention discloses an easily-degradable reusable efficient non-woven oil absorption material and a preparation method thereof. The material is composed of a hydrophobic three-dimensional porous non-woven material and an electrostatic spinning nano microporous fiber membrane. The preparation method of the non-woven oil absorption material comprises the following steps of firstly, preparing a three-dimensional porous non-woven material by adopting a non-woven method, then preparing a nano-microporous fiber membrane by utilizing an electrostatic spinning method, and then compounding the nano-microporous fiber membrane on the three-dimensional porous non-woven material by applying a chemical bonding method. The non-woven oil absorption material with the micro-nano gradient hole structureis prepared. Compared with an existing oil absorption material, the non-woven oil absorption material is easy to degrade, large in oil absorption amount, high in oil retention rate and good in oil-water separation effect, can be repeatedly used, and has wide application prospects in the aspect of oil spill treatment of land, oceans, rivers and the like.

The invention discloses a PE / / composite PE gravure plastic composite ink and a preparation method thereof. The composite ink comprises the following raw materials in percent by weight: an ethylene-vinyl acetate copolymer liquid; a CLEVA liquid; a rosin modified phenolic resin liquid; an aldehyde ketone liquid; a special polypropylene liquid for extrusion compounding; a color powder; a filler; andethyl acetate. The preparation process is simple, the printed pattern by the prepared product is flat, smooth and fine, the printing effect is good, the adhesion fastness is strong, the composite inkis non-combustible and non-explosive, the printing effect is kept lasting, the surface of the ink film is smooth and wrinkle-free, the printing is clear, the ink does not fall off during the use process, and the drying speed is fast, so that the composite ink can be suitable for using in the printing ink fields, and the product performance is improved.

The invention relates to a preparation method of light high-strength oil absorption cloth, belongs to the technical field of application of environment-friendly materials, and aims to solve the problem of treatment of marine leaked floating oil and provides the preparation method of the ligh high-strength oil absorption cloth. The light high-strength oil absorption cloth is formed by mixing and needling high-performance organic fibers and high-performance inorganic fibers which are subjected to surface modification treatment, and is light in weight, high in strength and large in specific surface area so that the oil absorption amount is large, the oil absorption performance is excellent, and oil stains floating on the water surface can be effectively absorbed in a short time; the preparedoil absorption cloth has the advantages of light weight, high strength, high oil absorption efficiency, reusability and the like.

The invention provides a method for preparing a TiO2 raw material for a chlorination process from titanium-rich fine powder. The method comprises the following steps: S1, weighing the titanium-rich fine powder, and uniformly mixing the titanium-rich fine powder with a solid organic binder and petroleum coke at room temperature; S2, uniformly covering the surface of a mixed material obtained in thestep S1 with petroleum coke, and then performing low-temperature coking at 380-420 DEG C for 2.5-4 hours; and S3, crushing the material having undergone low-temperature coking in the step S2 into particles for the first time, then carrying out high-temperature coking at 900-1200 DEG C for 20-60 minutes, and crushing a coked material into particles again so as to obtain the TiO2 raw material for the chlorination process. The method can prepare the TiO2 raw material with high yield (higher than 92%) and qualified granularity for the chlorination process and realizes the cyclic utilization of the titanium-rich fine powder; and the batching procedure of a later chlorination reaction is reduced by adding the petroleum coke in advance.

The invention discloses a method for synthesizing high-activity monodisperse aluminum hydroxide seed crystals. The method comprises the following steps: reacting nitric acid with sodium aluminate to obtain aluminum hydroxide micro-powder, and converting the micro-powder into the high-activity monodisperse aluminum hydroxide seed crystals through grinding, crushing and acid hydrolysis polymerization. Compared with the traditional process seed crystal, the aluminum hydroxide seed crystal prepared by the invention has the characteristics of higher activity, low agglomeration degree and the like,is suitable for the process of producing the superfine aluminum hydroxide flame retardant by a nitric acid method, and is beneficial to reducing the particle size distribution of the product and reducing the oil absorption of the product.

The invention discloses silicon dioxide / cellulose magnetic foam and a preparation method thereof. The method comprises the following steps: forming a fiber foam material with a three-dimensional structure by using inorganic silicon dioxide fibers and fibrillation cellulose extracted from plants by a chemical cross-linking method; and introducing ferroferric oxide magnetic nanoparticles and carrying out surface fluorinated modification to obtain a magnetic silicon dioxide / cellulose foam material. The silicon dioxide / cellulose foam has good strength and elasticity, is light in weight and high in oil absorption amount, can be induced to move by a magnetic field, can be used repeatedly, is high in durability, and has high applicability on absorption of long-distance large-area oil contamination. The process of the preparation method is simple and gentle, and the silicon dioxide / cellulose magnetic foam is suitable for mass production.