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

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 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 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 preparation process and application of a polydimethylsiloxane/graphene oxide porous composite material. The preparation process comprises the following steps: (1) preparing aPDMS porous material; (2) placing the PDMS porous material in a strong alkaline solution for hydroxylation so as to obtain a hydroxylated PDMS porous material; (3) infiltrating the hydroxylated PDMSporous material in an alcohol-water solution of KH550 for amination so as to obtain an aminated PDMS porous material; and (4) infiltrating t the aminated PDMS porous material in a graphene oxide dispersion with a concentration of 0.1 to 2 mg/mL, then slowly adding a mixed solution of DCC and DMAP drop by drop, carrying out heating to 60 to 80 DEG C after completion of addition, carrying out a stirring reaction, and after completion of the reaction, successively washing and drying a product so as to obtain the polydimethylsiloxane/graphene oxide porous composite material. The composite materialhas high hydrophobic and lipophilic characteristics, high oil-water selective adsorption capacity and good mechanical properties. The invention also provides the application of the composite materialas an oil absorbing material to oil-water separation.

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 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.