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30results about How to "Strong oil absorption" patented technology

Method for preparing hydrophobic lipophilic cotton fabric material through structuring zinc oxide fine structure

The invention relates to a method for preparing a hydrophobic lipophilic cotton fabric material through structuring a zinc oxide fine structure. The method comprises the following steps of: combining a sol-gel method with a hydrothermal method, i.e. uniformly laying prepared zinc oxide nano seed crystals on the surface of a cotton fabric through utilizing the sol-gel method at first, then growing zinc oxide nanorods toward fixed directions on the surface of the cotton fabric through utilizing the hydrothermal method, finally, modifying the cotton fabric through utilizing long-chain fatty acid-palmitic acid so as to have superhydrophobicity, and wrapping cotton with the cotton fabric for oil absorption. According to the method, the specific structure of zinc oxide is utilized to structure the superhydrophobic cotton fabric surface, and moreover, the cotton fabric has lipophilicity, good oil absorption after wrapping the cotton and a good practical application value in petroleum pollution water body remediation.
Owner:SHANGHAI UNIV

Preparation method of modified polypropylene nano fiber and oil absorption felt made from modified polypropylene nano fiber

At present, a large-scale polypropylene fiber production process mainly comprises melt spinning and melt blowing, and the diameter of melt-spun polypropylene fiber ranges from 10 mu m to 20 mu m or is thicker. The melt blowing technique is the superfine fiber manufacturing method most commonly used at present, a polymer melt is blown by air flow with high temperature approaching a polymer melting point at a high speed, so that the polymer melt is quickly stretched, and superfine fiber is obtained. However, the diameter of most existing melt-blown fiber ranges from 2 mu m to 4 mu m, and preparation of the polypropylene nano fiber is still difficult. The preparation method of the modified polypropylene nano fiber and the oil absorption felt made from the modified polypropylene nano fiber have the characteristics of simplicity in manufacturing, convenience in use, high oil absorption rate, easiness in recycling and the like.
Owner:深圳市东城绿色投资有限公司 +1

Preparation method of superparamagnetism easily-degradable oil stain absorption material and product obtained by method

The invention discloses a preparation method of superparamagnetism easily-degradable oil stain absorption material and a product obtained by the method. The preparation method comprises the following steps: adding superparamagnetism Fe3O4 nano particles in a chiosan-acetic acid aqueous solution while stirring, wherein the mass ratio of the Fe3O4 nano particles to the chiosan-acetic acid aqueous solution is 2%-4%; then dropwise adding the obtained Fe3O4-chiosan -acetic acid aqueous solution in an equivoluminal 3%-5% sodium stearate aqueous solution for full reaction; and carrying out vacuum filtering on the obtained Fe3O4-chiosan-sodium stearate compound solution when the solution is hot, collecting filter cakes and drying so as to obtain superparamagnetism chiosan-sodium stearate polymerization clusters. The polymerization cluster has good oil absorbing capability, the volume of the absorbed oil is 10-15 times of that of the compound; and the compound after the oil is absorbed can continue to float on the water surface and can directionally drift under the guidance of a magnet.
Owner:SOUTHWEST JIAOTONG UNIV

Compound cigarette filter stick capable of reducing release amount of cigarette tar and preparation method thereof

The invention provides a compound cigarette filter stick capable of reducing the release amount of cigarette tar and a preparation method thereof. The compound cigarette filter stick is connected to a cigarette body and comprises a first cellulose acetate fiber section and a second cellulose acetate fiber section; one end of the second cellulose acetate fiber section is connected to the first cellulose acetate fiber section while the other end of the second cellulose acetate fiber section is connected to the cigarette body; an adsorbent fills the second cellulose acetate fiber section; and the length proportion of the second cellulose acetate fiber section and the first cellulose acetate fiber section is (3-5): 1. According to the compound cigarette filter obtained by the invention, by adding the adsorbent into the cigarette filter, granular phase compositions in cigarette smoke can be effectively adsorbed to reduce the tar release amount of the whole cigarette, so that the harmless of cigarette suction is reduced.
Owner:SHANGHAI TOBACCO GRP CO LTD

Oil sorbent mat material

The invention discloses an oil sorbent mat material, which consists of two parts, namely a substrate and oil sorbent resin, wherein the oil sorbent material is prepared by adopting the following steps of: cutting a substrate into a required shape, soaking the substrate into the oil sorbent material and drying. The oil sorbent mat material provided by the invention combines the high oil-absorption property characteristic of oil sorbent resin fabrics and long-chain strobilurins and has the advantages of simple manufacturing, convenience for use, easy recovery, higher oil absorbability and better application prospect.
Owner:HEFEI GENIUS NEW MATERIALS

One-step molding support member production process

The invention relates to a one-step molding support member production process which comprises the following steps: pretreating a high chemically pure insulating wood pulp, pulping, concentrating to a pulp chest, transmitting the paper pulp to a pulp grinder by utilizing a pump, grinding the paper pulp to a beating degree of 30+ / -2 degrees SR and a wet weight of 13+ / -2 g so as to meet process requirements, preparing the ground pulp into a concentration of 0.6+ / -0.1%, removing impurities by using a slag separator, transmitting the pulp to a pulp smoothening box, feeding the paper pulp into a wet raw paper shaper through a pipeline and the pump, making the paper pulp into wet raw paper with a certain thickness, and transferring the wet raw paper into a mold the lateral parts and the bottom part of which are provided with meshes, wherein an inner net is arranged in the mold; and when the thickness of the raw paper reaches the specified thickness, covering a layer of meshing fabric on the raw paper, placing the mold with the raw paper in a hot press, and heating to finish hot pressing. By using the one-step molding process, the invention reduces the secondary pollution, saves the energy and lowers the production cost. The production process is safe and reliable and is applicable to the high-voltage transformer.
Owner:XINSHAO GUANGXIN ELECTRICAL INSULATING MATERIALS

Oil removing ship for offshore oil leaking phenomenon

The invention discloses an oil removing ship for the offshore oil leaking phenomenon. The oil removing ship comprises a ship body as well as a central machine room, a main power device, a left flank,a right flank and an oil storing device mounted on the ship body and further comprises oil absorbing rollers, an electrolysis oil-water separator, a bioreactor, a sewage reactor, an unmanned cabin, anoil transportation port and an active sonar, wherein the central machine room is arranged at the front end of the ship body; the oil absorbing rollers are mounted in the left and right flanks and communicate with the electrolysis oil-water separator through pure plastic PPR water pipes; the electrolysis oil-water separator communicates with the oil storing device, the bioreactor and the sewage reactor through the pure plastic PPR water pipes; the oil transportation port for discharging oil is arranged on the oil storing device; the active sonar is arranged at the bottom of the ship body; andthe central machine room controls the variety of the sound waves sent out by the active sonar. The oil removing ship is skillful in self internal structure design, realizes efficient and low-consumption operation and is suitable for offshore working environment.
Owner:NANJING AGRICULTURAL UNIVERSITY

Biological latex used for papermaking and preparation method thereof

The invention discloses biological latex used for papermaking and a preparation method thereof, and belongs to the field of coatings. Glutinous rice starch is taken as a raw material, the characteristic that cyanogroup on the surface of the starch is easy to react with organosilane is used, the quantity of surface hydroxyl groups is reduced, the hydrophobic property is strengthened, and the waterresistance after the biological latex is used for paper surface is improved; the starch after hydrophobic modification is added into environmentally-friendly triethyl citrate and glycerol to be mixedfor carrying out plasticized modification, so that the coating performance of a base material is improved, simultaneously, the addition of a part of petroleum base latex can be replaced, the resourcesare saved, and the purpose of environmental protection is achieved; tetraethoxysilane is taken as a raw material, the toughening improvement performance of the latex is improved, the biological latexis unlikely to embrittle after drying, and the mechanical property of the coating is improved; 1,2-benzisothiazoline-3-one and ammonia water are added for forming a conservation activator for the biological latex, so that the performance of the latex is improved, the latex is prevented from losing efficacy, and the biological latex has an anti-aging effect. The biological latex solves the problemthat paper becomes embrittled and low in ink absorbency after the biological latex is used at present.
Owner:FOSHAN SENANG BIO TECH CO LTD

Novel facial and skin cleaning care material and preparation method thereof

The invention discloses a novel facial and skin cleaning care material and a preparation method thereof, and belongs to the technical field of skin cleansing care. The novel facial and skin cleaning care material is of a microporous film structure prepared by processing a polyolefin material, the film thickness is 5-100 microns, and the film porosity is 20-80%. The novel facial and skin cleaning care material has the advantages that a porous film substrate is also coated with a functional coating, wherein the functional coating comprises a filler and a binder; dead skin, dust, cosmetics, organic impurities and the like on the face all can be effectively cleaned through the cleaning care material, the skin is smoother after being cleaned, and the skin and the stratum corneum cannot be damaged.
Owner:安徽金力新能源有限公司

Preparation method of intelligent pH response type melamine foam oil-water separation material

The invention belongs to the technical field of oil absorption materials and environmental protection, and particularly relates to a preparation method of an intelligent pH response type melamine foamoil-water separation material. The preparation method comprises the following steps: firstly, carrying out silanization modification on melamine foam by adopting aminopropyltrimethoxysilane; and withcopper sulfate as a catalyst, carrying out a copper amine oxidation-reduction reaction in an aqueous solution to generate free radicals which initiate graft polymerization of diethylaminoethyl methacrylate so as to prepare the pH-responsive melamine foam oil-water separation material. According to the invention, the melamine foam with high internal porosity and large absorption capacity is selected as a matrix, and free radical graft polymerization is initiated through a simple copper-ammonium oxidation-reduction two-step method to prepare the oil-water separation foam material containing a pH response layer; the material has switchable wettability in different pH environments; and foam modification process is simple, and industrial production is easy to realize.
Owner:CHANGZHOU UNIV

Self-floating alternating type water surface oil stain adsorption sheet

The invention discloses a self-floating alternating type water surface oil stain adsorption sheet, and belongs to the technical field of water body purification. A plurality of groups of lower oil absorption columns and upper oil absorption columns which are connected through a guide rope are arranged below an adsorption table, when the lower oil absorption columns reach certain adsorption saturation, oil stain is in contact with the inner side of an oil hydrolysis water guide part through the top end parts of the lower oil absorption columns, the oil hydrolysis water guide part is unblocked when meeting oil and overflows aqueous solution, after a hydrolysis column is in contact with the aqueous solution, an air guide hose is exposed and drives the lower oil absorption columns to move upwards under the buoyancy action of a floating ball, at the moment, the upper oil absorption columns at the other end of the guide rope falls down under the gravity of the upper oil absorption columns, and therefore, the lower oil absorption columns floats upwards automatically after adsorption saturation, so that the upper oil absorption columns alternately falls into a water body to continuously carry out adsorption on the oil stains, an alternating type column body adsorption mode is adopted, the adsorption area is increased to a certain extent, a certain distance can be reserved between everytwo oil absorption columns, and when the self-floating alternating type water surface oil stain adsorption sheet carries out oil stain adsorption on the water surface, the fluidity of the water bodyis prevented from being reduced.
Owner:石立凯

Deoiling device

The invention relates to the technical field of food processing equipment, and discloses deoiling equipment. The deoiling equipment comprises a machine frame, a barrel body, a motor and a rotating shaft. The rotating shaft is provided with a sliding part and a thread part. The thread part is connected with a receiving plate in a threaded mode, the receiving plate is longitudinally and slidably connected into the barrel body, and the receiving plate is provided with a plurality of leakage holes. The sliding part is longitudinally provided with a key groove, a baffle is slidably connected outside the sliding part, and a convex block is arranged at the end, near the sliding part of the rotating shaft, of the baffle. A plurality of storage grooves are uniformly distributed in the bottom of thebaffle, and second elastic pieces are fixedly connected into the storage grooves. Push plates are fixedly connected to the bottom ends of the second elastic pieces, and the push plates are longitudinally and slidably connected into the storage grooves. The push plates are provided with flexible oil absorption plates, and the oil absorption plates abut against the side walls of the storage grooves. An oil discharging mechanism for discharging oil is arranged on the side wall of the barrel body. According to the deoiling equipment, multiple deoiling can be carried out on food, the deoiling effect of the food is greatly enhanced, taste of the food is improved, and the damage to the food in the deoiling process can further be reduced, so that the appearance of the food is kept attractive.
Owner:CHONGQING NIANJI FOOD

Method for preparing hydrophobic lipophilic cotton fabric material through structuring zinc oxide fine structure

The invention relates to a method for preparing a hydrophobic lipophilic cotton fabric material through structuring a zinc oxide fine structure. The method comprises the following steps of: combining a sol-gel method with a hydrothermal method, i.e. uniformly laying prepared zinc oxide nano seed crystals on the surface of a cotton fabric through utilizing the sol-gel method at first, then growing zinc oxide nanorods toward fixed directions on the surface of the cotton fabric through utilizing the hydrothermal method, finally, modifying the cotton fabric through utilizing long-chain fatty acid-palmitic acid so as to have superhydrophobicity, and wrapping cotton with the cotton fabric for oil absorption. According to the method, the specific structure of zinc oxide is utilized to structure the superhydrophobic cotton fabric surface, and moreover, the cotton fabric has lipophilicity, good oil absorption after wrapping the cotton and a good practical application value in petroleum pollution water body remediation.
Owner:SHANGHAI UNIV

A kind of high foaming ratio pla/pbat/talc composite foaming oil-absorbing material and preparation method thereof

The invention belongs to the field of environmental protection, and specifically discloses a high foaming ratio PLA / PBAT / Talc composite foaming oil-absorbing material and a preparation method thereof. The preparation method comprises the following steps: (1) melting PLA, PBAT, Talc and auxiliary agents Blend and press into a thin plate; (2) place the thin plate in a reactor, heat it to 130°C to 145°C, and after the temperature is constant, introduce supercritical gas to control the pressure range from 1600psi to 1800psi, and then continue to heat up to 160°C ~180℃, keep the temperature for 3~5min; (3) After the heat preservation, reduce the temperature to 100℃~115℃, and saturate at this temperature for 0.5h~1h; (4) After reaching the saturation, perform ultrasonic treatment on the sheet; ( 5) After ultrasonication, release the supercritical fluid to the normal pressure state in the reactor, and then reduce the temperature to 0-5 °C; (6) After cooling, take out the sheet and dry to obtain PLA / PBAT / Talc composite foaming Oil absorbing material. The PLA / PBAT / Talc composite foaming oil-absorbing material prepared by the invention has small cell size, high cell density, is biodegradable, has strong oil-absorbing performance, and can be reused.
Owner:ZHENGZHOU UNIV

Oil absorption felt material

The present invention discloses an oil absorption felt material, which comprises two parts such as a matrix and an oil absorption resin, wherein the matrix is cut into the required shape, the cut matrix is immersed into the oil absorption resin, and drying is performed to prepare the oil absorption felt material. According to the present invention, the obtained oil absorption felt material combines the high oil absorption characteristics of the oil absorption resin fabric and the long chain acrylate, and further has characteristics of simple manufacturing, easy use, easy recovery, powerful oil absorption rate, and good application prospects.
Owner:ANHUI BANNI NEW MATERIALS

Low-speed machine multifunctional connecting rod bolt

InactiveCN108518400AGood anti-loose and anti-skid performancePrevent looseningNutsBoltsMultiple functionFlange
The invention aims at providing a low-speed machine multifunctional connecting rod bolt which comprises a bolt head and a screw rod. The screw rod is connected to the bottom of the bolt head, the middle of the screw rod is provided with two sections of protrusions, the protrusions are provided with circular granules, the lower portion of the screw rod is provided with a thread section, a crossed oil suction groove where oil suction materials are installed is formed below the thread section, the lower end of the oil suction materials is a cylinder, the top of the cylinder is provided with a crossed body connected with the cylinder, and the crossed body is embedded into the crossed oil suction groove. The connecting rod bolt is simple and reasonable in structure, and the connection rod boltcan be better applied to connecting of connecting rod components through high looseness resistance of a hexagonal flange face bolt head, the positioning function of the circular grains on the protrusion sections and the oil suction characteristics of specific oil suction materials.
Owner:HARBIN ENG UNIV

Preparation method of superparamagnetism easily-degradable oil stain absorption material and product obtained by method

The invention discloses a preparation method of superparamagnetism easily-degradable oil stain absorption material and a product obtained by the method. The preparation method comprises the following steps: adding superparamagnetism Fe3O4 nano particles in a chiosan-acetic acid aqueous solution while stirring, wherein the mass ratio of the Fe3O4 nano particles to the chiosan-acetic acid aqueous solution is 2%-4%; then dropwise adding the obtained Fe3O4-chiosan -acetic acid aqueous solution in an equivoluminal 3%-5% sodium stearate aqueous solution for full reaction; and carrying out vacuum filtering on the obtained Fe3O4-chiosan-sodium stearate compound solution when the solution is hot, collecting filter cakes and drying so as to obtain superparamagnetism chiosan-sodium stearate polymerization clusters. The polymerization cluster has good oil absorbing capability, the volume of the absorbed oil is 10-15 times of that of the compound; and the compound after the oil is absorbed can continue to float on the water surface and can directionally drift under the guidance of a magnet.
Owner:SOUTHWEST JIAOTONG UNIV

Preparation method of roasted lamb back

The invention discloses a preparation method of roasted lamb back, comprising the following steps: S1, slaughtering selected live sheep, removing acid and cutting to obtain lamb back; S2, dissolving the barbecue seasoning in water at a weight ratio of 1: 1-2 and mixing evenly to obtain a barbecue seasoning pickling solution; S3, adding the lamb back obtained in S1 into the barbecue seasoning pickling solution obtained in S2 at a weight ratio of 100: 10-15, stirring evenly, and pickling for 40-50 min at a temperature of 0-4 DEG C; S4, roasting the lamb back pickled in S3; S5: placing the pickled lamb back in 2 rooms for 2 hours while the lamb back cannot enter the roasting process, spraying long-term flavor seasoning and replacing in an environment of 0-4 DEG C to fully guarantee delicioustaste of the lamb back. When the lamb back cannot be roasted at the first time, long-term flavor seasoning is further sprayed, which is mainly to inhibit the deteriorating speed of mutton itself, improve the comprehensive flavor of mutton, improve the indoor storage time of mutton, and reduce the production cost of catering enterprises.
Owner:内蒙古西贝餐饮集团有限公司

High oil-receiving wiping material capable of quickly absorbing oil product

The invention relates to a high oil-receiving wiping material capable of quickly absorbing an oil product, and belongs to the technical field of wiping material preparation. Transparent liquid is prepared from raw materials namely citric acid, triethylene glycol monobutyl ester and p-toluenesulfonic acid, pure cotton woven fabric is immersed in the transparent liquid, the structure of the pure cotton woven fabric can be modified to enhance the oil absorption and oil receiving capacities of cotton fiber, the pure cotton woven fabric is further lipophilically modified by using sol obtained afterhydrolysis of ethyl orthosilicate, and the pure cotton fiber has strong lipophilic property. The high oil-receiving wiping material prepared in the invention has low cost, simple process, strong oilabsorption, and high oil receiving amount, can quickly absorb the oil product, and can be widely used in the field of machine oil wipe, oil and water separation, etc.
Owner:金福珍

Processing technology of polymer oil absorption paper

The invention discloses a processing technology of polymer oil absorption paper. The processing technology comprises the steps that 1, an organic phase of the mixed solution of polylactic acid and 3-hydroxybutyrate caproate is prepared; 2, ammonium bicarbonate is dissolved in water to prepare a water phase; 3, natural fiber is added to the water phase, the length of the natural fiber is 30-50 microns, ultrasonic treatment is conducted on the water phase, the ultrasonic treatment frequency is 80-90 KHz, the ultrasonic treatment time is 15-20 minutes, then the organic phase is divided into 4-7 parts and is added to the water phase part by part, homogenizing treatment is performed after each part of organic phase is added, and emulsified liquid is obtained; 4, the emulsified liquid is put at normal temperature for 1-2 hours, then the temperature is reduced from the normal temperature to 5 DEG C, and standing continues at the temperature of 5 DEG C for 1 hour; 5, standing is performed at the temperature of 10-15 DEG C for 3-4 hours. The prepared oil absorption paper has good oil absorption capacity.
Owner:ZHEJIANG GAODU ENVIRONMENTAL PROTECTION TECH CO LTD

A kind of porous polyvinyl chloride foam ball and preparation method thereof

ActiveCN105153457BWell mixedHigh industrial controllabilityOther chemical processesFoaming agentPolymer science
The invention provides a porous polyvinyl chloride foam ball which has a perforated structure and is high in porosity and oil adsorptivity and a preparation method for the porous polyvinyl chloride foam ball, and belongs to the technical field of porous polymer materials. The porous polyvinyl chloride foam ball provided by the invention has the advantages of being perforated in structure, high in specific surface area, light in weight, strong in adsorption capacity, excellent in acid and alkali resistance and the like, and has potential application value in the field of environmental protection, chemistry and the like. The preparation method provided by the invention comprises: (1) uniformly mixing a polyvinyl chloride solution and a pore-foaming agent by virtue of a mechanical ball-milling method; and (2) preparing the porous polyvinyl chloride foam material by virtue of a phase separation precipitation method. Compared with other porous polymer materials, the porous polyvinyl chloride foam ball prepared by the method has the advantages that (1) the pore diameter is controllable, the specific surface area is high and the pore diameter is uniformly distributed; (2) the cost is relatively low and the price is low; (3) the preparation process is simple and energy-saving and environmental-friendly; and (4) the ball has a relatively strong oil adsorbing capacity, and the oil adsorbing rate can reach 1000%.
Owner:HUAQIAO UNIVERSITY

Bright yellow antibacterial natural color bamboo paper pulp and paper product thereof

The invention relates to bright yellow antibacterial natural-color bamboo paper pulp and a paper product thereof. The ratio of the mass sum of pentosan and acid-insoluble lignin in the bamboo paper pulp to the mass of cellulose is 1:(0.3-8.0), wherein after the bright yellow natural color bamboo paper pulp is made into 80g / m2 round paper, the yellow chromaticity b* is 23-33, the L* is 63-72, and the a* is 2-5. According to the bamboo paper pulp, natural components of bamboos are fully reserved, hemicelluloses with relatively strong hydrophilic performance and capable of increasing fiber elasticity are fully reserved, lignin with relatively strong oil absorption performance is preserved as a component of a paper pulp product, and naturally existing substance components beneficial to sterilization and disinfection in the bamboos are reserved in the bamboo paper pulp; therefore, the ratio of pentosan, acid-insoluble lignin and cellulose in the bamboo paper pulp product has excellent antibacterial performance, so that the bamboo paper pulp product has good antibacterial activity, water absorption, oil absorption and writing performance. The product has better advantages when being used as a raw material for developing household paper, food packaging paper and writing paper.
Owner:BEIJING INSIGHT BIOMASS +1

Preparation process of oil-absorbing sheet

The invention discloses a preparation process of an oil-absorbing sheet. The process comprises the following steps: (1) preparing an organic phase of a mixed solution of polylactic acid and poly-3-hydroxybutyrate hexanoate by dissolving the polylactic acid and the poly-3-hydroxybutyrate hexanoate into an organic solvent; (2) dissolving ammonium bicarbonate into water to prepare an aqueous phase, wherein the concentration of ammonium bicarbonate in the aqueous phase is 4.3-6.7 g / L; (3) dividing the organic phase into 4-7 parts, gradually adding the parts of the organic phase into the aqueous phase, and carrying out homogenate treatment after adding the organic phase each time, wherein the time for the homogenate treatment each time is 12-25 minutes so as to obtain an emulsion, and the volume ratio of the total organic phase to the aqueous phase is (6-8):1; (4) putting the emulsion at the room temperature for 1-2 hours; (5) freeze-drying for 3-4 hours at the temperature of 10-15 DEG C. The prepared oil-absorbing sheet has an excellent oil-absorbing capability.
Owner:李冬琼

Preparation and application of a solar-driven self-heating multi-stage sulfide in situ grown black sponge

The invention belongs to the technical field of preparation of environmental functional materials, and relates to the preparation and application of a self-heating multi-stage sulfide in-situ grown black sponge driven by solar energy; the steps are as follows: dissolving tungsten hexachloride and thioacetamide in deionized Stir in water to obtain a colorless and clear solution; after the waste rubber sponge is properly cut, it is immersed in the solution and transferred to the reaction kettle for hydrothermal reaction. After the reaction, the waste rubber sponge is taken out and washed with absolute ethanol, and a black block is obtained after drying ; Disperse ammonium molybdate and thiourea in deionized water, stir to form a colorless and transparent solution; immerse the black block and transfer it to a reaction kettle for hydrothermal reaction. After the reaction, take out the product and wash it with absolute ethanol and ionized water , freeze-drying to obtain a black sponge with multi-level sulfide growth in situ. The material prepared by the invention has super-hydrophobic and super-oleophilic ability, relatively high strength and thermal stability, can stably absorb light and heat itself under sunlight conditions, and can absorb heavy oil with high viscosity.
Owner:JIANGSU UNIV

Pineapple leaf fiber composite lampblack air filtration material and preparation method thereof

The invention discloses a pineapple leaf fiber composite lampblack air filtration material. The pineapple leaf fiber composite lampblack air filtration material is characterized by being prepared from, by weight, 20-30 parts of polypropylene fibers, 20-30 parts of pineapple leaf fibers, 5-10 parts of palm fibers, 5-10 parts of aramid fibers, 10-20 parts of oil absorption resin, 3-5 parts of liquid paraffin, 1-2 parts of polyethylene glycol oleate, 1-2 parts of sorbitol, 1-2 parts of glycerol and 10-15 parts of composite modifiers. The filtration material can effectively filter out solid and liquid particles in lampblack waste gas, can also have the harm reducing function, is good in purifying effect, can effectively reduce pollution of lampblack waste gas to the environment, can also have good bacteria resistance and bacteriostasis, and is high in practicability.
Owner:ANHUI PHOENIX INT CO LTD

A kind of pcl/plga composite foaming oil-absorbing material and preparation method thereof

The invention belongs to the field of environmental protection, and specifically discloses a PCL / PLGA composite foamed oil-absorbing material and a preparation method thereof. The preparation method includes the following steps: 1) melt-blending PCL, PLGA, and additives, and pressing them into thin plates; ( 2) Put the thin plate in the reaction kettle, heat it to 42°C-55°C, and pass supercritical gas after the temperature is constant, control the pressure range to 1800psi-2500psi, then raise the temperature to 80°C-90°C, and keep it warm for 3-5 minutes; (3) After heat preservation, lower the temperature to 40°C-45°C, and saturate at this temperature for 1h-3h; (4) After saturation, perform ultrasonic treatment on the thin plate; (5) After ultrasonication, release the ultra- The critical fluid is in the state of normal pressure in the reactor, and then the temperature is lowered to 0-10°C; (6) After the temperature is lowered, the sheet is taken out and dried to obtain the PCL / PLGA composite foam oil-absorbing material. The PCL / PLGA composite foamed oil-absorbing material prepared by the invention has small cell size, high cell density, is biodegradable, has strong oil-absorbing performance, and can be used repeatedly.
Owner:ZHENGZHOU UNIV

PCL/PLA composite foaming oil absorption material and preparation method thereof

ActiveCN113121867AHigh Cell Nucleation DensityAvoid cavitationLiquid separationHeat conservationSupercritical fluid
The invention belongs to the field of environmental protection, and particularly discloses a PCL / PLA composite foaming oil absorption material and a preparation method thereof. The preparation method comprises the following steps that 1, PCL, PLA and auxiliaries are subjected to melt blending and pressed into a thin plate; (2) the thin plate is placed in a reaction kettle and heated to 40-50 DEG C, supercritical gas is introduced after the temperature is constant, the pressure range is controlled to be 1600-2500 psi, then the temperature continues to rise to 80-100 DEG C, and heat preservation is conducted for 5-10 min; (3) after heat preservation, the temperature is reduced to 36-42 DEG C, and saturating is conducted for 1-4 hours at the temperature; (4) after saturation, ultrasonic treatment is conducted on the thin plate; (5) after ultrasonic treatment, the supercritical fluid is released until the interior of the reaction kettle is in a normal pressure state, and then the temperature in the reaction kettle is reduced to 0-10 DEG C; and (6) after cooling, the thin plate is taken out, and drying is conducted to obtain the PCL / PLA composite foaming oil absorption material. The PCL / PLA composite foaming oil absorption material prepared by the invention is large in cell density, high in foaming ratio, biodegradable, high in oil absorption ratio and reusable.
Owner:ZHENGZHOU UNIV
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