63results about How to "Inhibition of swelling" patented technology

The invention discloses a production method of a swelling-resistant two-dimensional SA-MXene layered nanofiltration membrane. The production method of the swelling-resistant two-dimensional SA-MXene layered nanofiltration membrane comprises a first step of mixing MXene precursor powder and an etching agent solution, carrying out a stirring reaction, and conducting centrifugal washing to obtain a two-dimensional MXene nanosheet colloid solution; a second step of adding sodium alginate into the two-dimensional MXene nanosheet colloid solution, and evenly stirring and mixing an obtained mixture to obtain SA-MXene nanosheets; and a third step of stacking the SA-MXene nanosheets on a surface of a substrate to produce a membrane, and placing the membrane in a polyvalent metal solution for cross-linking to obtain the swelling-resistant two-dimensional SA-MXene layered nanofiltration membrane. According to the method, by evenly grafting the sodium alginate onto surfaces of MXene nanosheets, through a cross-linking effect of the sodium alginate and polyvalent metal ions, stable hydrophilic cross-linked networks are formed in interlayer channels of the nanosheets, thus the problem of swelling of a layered membrane is solved, meanwhile, due to the fact that the sodium alginate is doped, a large number of oxygen-containing functional groups are introduced onto surfaces of the mass transferchannels, the channel electronegativity is improved, and the layered membrane shows excellent selective filtering performance.

The invention provides a slack coal pressure gasification wastewater resourceful treatment method. The treatment method sequentially comprises the following steps of: (1) performing oil-water separation on the wastewater to obtain wastewater after the oil-water separation treatment; (2) treating the wastewater obtained by the step (1) by use of active sludge, and performing mud-water separation to obtain wastewater after the active sludge treatment; (3) adding an adsorbent into the wastewater obtained by the step (2), and performing solid-liquid separation to obtain wastewater after the adsorption separation treatment; (4) adding a flocculating agent and/or flocculation aid into the wastewater obtained by the step (3), and precipitating to obtain wastewater after the coagulation clarifying treatment; and (5) treating the wastewater obtained by the step (4) by use of a filter material loaded with microorganisms to obtain dischargeable/recyclable water. The invention also provides a system for the method to realize resourceful treatment on the wastewater, and application of the treatment method or treatment system in treating slack coal pressure gasification wastewater.

The invention discloses an application of an external-use plaster composition in preparation of a drug used for treating skin injury. A experiment proves that the external-use plaster composition is significant in effects on treatment of skin injury, is quick in the effects, is slight in toxic and side effects, is a drug used for treating skin injury and promoting skin injury to heal safely, high-efficiently and stably, is simple in preparation process, is suitable for industrial production, is easy to popularize. The invention provides a new drug source for preventing and treating the skin injury.

The preparation process of polyacrylic acid-polyethylene glycol/cellulse acetate (PAA-PEG/CA) composite film is the application of film casting process in preparing composite film. Film casting solution is first prepared through mixing water solution of PAA PEG and adding ethylene glycol and aluminum nitrate as the cross linking agent; and then cast to the surface of supporting porous CA film at room temperature; and the PAA-PEG gel film on the CA film is finally dried and heat treated to obtain the PAA-PEG/CA composite film. The PAA-PEG/CA composite film is used in the permeating vaporization separation of water mixture with dimethyl carbonate in 90 wt% in the conditions of room temperature and downstream vacuum degree of 300-600 Pa, and can reach excellent separation of permeation flux of 96.30-313.74g/sq m.hr and separation factor of 52.06-1602.17. The present invention has simple preparation process, facile material and easy operation and control, and suitable for industrial production.

The present invention relates to the technical field of lithium ion batteries, in particular to a non-aqueous electrolyte battery, comprising a positive electrode and a positive electrode active material, a negative electrode and a negative electrode active material, a separator and a non-aqueous electrolyte, the non-aqueous electrolyte containing a solvent, an electrolyte and additives; the electrolyte is lithium hexafluorophosphate; the solvent is a mixture of ethylene carbonate (EC), propylene carbonate (PC), diethyl carbonate (DEC) and ethyl methyl carbonate (EMC), the carbonic acid The content of vinyl ester (EC) is 0%-40wt%, the content of the propylene carbonate (PC) is 10-40wt%, the content of the diethyl carbonate (DEC) is 5-50wt%, the carbonic acid The content of ethyl methyl ester (EMC) is 0-60wt%; the additive is biphenyl (BP), and the invention can suppress high-temperature expansion and improve high-temperature performance.

The invention provides a low-temperature-resistant dispersing type sanitary sewage treatment integrated device and a treatment method thereof. The low-temperature-resistant dispersing type sanitary sewage treatment integrated device comprises an adjusting tank, a first-stage anoxic tank, a first-stage aerobic tank, a second-stage anoxic tank, a second-stage aerobic tank, a third-stage anoxic tank, a third-stage aerobic tank, a secondary sedimentation tank, a solar heat collection system, a heat storage water tank and a heat exchanger. The adjusting tank is connected with the first-stage anoxic tank, the second-stage anoxic tank and the third-stage anoxic tank through a mechanical diaphragm metering pump and pipelines. The third-stage aerobic tank is connected with the secondary sedimentation tank. Filler is added to all stages of the aerobic tanks. Meanwhile, thermal insulation is conducted on a device shell, and heating is conducted through the solar heat collection system. The low-temperature-resistant dispersing type sanitary sewage treatment integrated device is small in occupied area, simple in operation, good in output water quality, convenient to maintain, low in operation cost, capable of being stably operated at a low temperature and capable of conducting dispersing type sanitary sewage integrated treatment.

The present invention is medicine for promoting gastrointestinal function and its preparation process. The present invention features that the medicine is prepared with rhubarb in 2-5 weight portions, magnolia bark in 3-6 weight portions and tree peony bark in 2-4 weight portions, and may be prepared into common orally taken preparation forms. The medicine of the present invention has the functions of cleaning up stomach and intestinal, keeping the adverse energy downwards, eliminating fluid retention and promoting blood circulation to disperse blood clots, and is used in treating gastrointestinal bradytalsis, vital energy stagnation caused abdominal flatulence and abdominal fullness in high curative rate.

The invention discloses hetisin type diterpenoid alkaloid and a preparation method thereof and application of the alkaloid as anti-inflammatory medicaments. The diterpenoid alkaloid is prepared from buttercup aconitum plant monkshood serving as a raw material by the steps of acid water extraction, alkalization, organic solvent extraction, silica gel short column chromatography and elution. According to authentication by a chromatographic method, the compound is novel hetisin type diterpenoid alkaloid carmichaeline A. An animal test shows that the new compound has certain anti-inflammatory activity on a mouse inflammation model caused by various inflammatory agents.

The invention provides a M60-M85 methanol gasoline additive for high cleaning vehicles and a methanol gasoline thereof. After the M60-M85 methanol gasoline additive for high cleaning vehicles is added into the M60-M85 methanol gasoline, the methanol gasoline has the advantages of favorable compatibility, high water resistance, no air resistance, high heat value, high combustion safety and the like, enables the automobile to perform cold starting easily, and inhibits the rubber plastic from swelling and cracking. The additive is free of any tert-butyl methyl ether component, or lead, aluminum, manganese or any other nonferrous metal ion, and is environment-friendly. The M60-M85 methanol gasoline additive can be directly used under the condition of not modifying the existing automobile engine.

The invention discloses a power additive used for an automobile, and a preparation method thereof. The power additive is prepared from the following ingredients: methyl alcohol, C12, xylene, ethyl tert butyl ether, an emulgator OP-10, n-octyl alcohol, paranitroaniline, imidazoline petroleum barium sulfonate, laurinol, propargyl alcohol and dioctyl phthalate. The additive is hydrogen-rich carbon-containing combustible liquid, the additive is added into gasoline at the volume fraction of 30-40%, the additive can partially replace the gasoline as fuel, the quality of the gasoline can be improved,the quality of the gasoline is improved, the cost of the gasoline is lowered, the octane value of the gasoline is improved, and dynamic performance is enhanced. The ingredients of the additive are abundant and are completely combustible, in addition, an ignition point is low, carbon deposition and series problems caused by carbon deposition can be avoided, the corrosion of the methyl alcohol forautomobile metal components can be prolonged, and the swelling function of the methyl alcohol for automobile rubber components is lowered. The additive is safe and environmentally friendly, tail gas emissions are reduced by 60% than the gasoline, and each index is superior to the index of common gasoline.

The present invention provides a solvent-resistant polydimethylsiloxane polymer having oil repellency, and a production method thereof, wherein the polymer is prepared by curing a viscous fluid mixture through chemical cross-linking, the viscous fluid mixture is formed from a cross-linkable precursor having a formula comprising a reactive molecule and one or a plurality of optional solid or liquidadditives, and the reactive molecule comprises a dimethylsiloxane main chain and one or a plurality of side chain reactive silane motifs.

The invention relates to a polyester high polymer material, and discloses a high-transparency and high-heat-resistance copolyester resin and a preparation method thereof. The copolyester resin comprises the following components: (1) a binary acid component comprising: (a) 80-100 mol% of terephthalic acid residue, (b) 0-20 mol% of aromatic diacid residues; and (2) a dihydric alcohol component comprising: (a) 20-85 mol% of 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol residues, (b) 15-80 mol% of a first diol residue, and (c) 0-30 mol% of a second diol residue. According to the copolyester resin disclosed by the invention, pentanediol residues or propylene glycol residues are introduced, so that blockage is avoided in the preparation process, the intrinsic viscosity is increased, the loss of CBDO monomers is inhibited, and the obtained copolyester has high glass transition temperature and excellent strength, toughness and thermal stability; and the foaming, foaming and expansion phenomena caused by thermal decomposition can be effectively inhibited in the melt processing process.

The invention relates to the field of medicines, in particular relates to novel application of oleanolic acid and especially relates to application of preparation of a medicine for inhibiting skin inflammations. An experiment shows that the oleanolic acid can be used for effectively inhibiting the release of inflammatory factors, so that the inflammation diminishing aim is realized. The result shows that the oleanolic acid can be used for preparing a skin inflammation inhibitor.

The invention provides a preparation method of an anti-fouling anion-exchange membrane. The preparation method of the anti-fouling anion-exchange membrane comprises the steps that (1) PVA powder is added into deionized water to enable the PVA to be fully dissolved to obtain a PVA water solution; (2) EPTAC is added into the PVA water solution, stirring is carried out under 55-65 DEG C for reactionfor 3-5h, sedimentation and washing are carried out by absolute ethyl alcohol to neutral after the reaction is completed, and drying is performed to constant weight to obtain QPVA; (3) the prepared QPVA is dissolved into the deionized water to obtain a QPVA transparent solution with 5-10% of mass percent concentration, and defoaming is carried out at a room temperature; a plastic plate is coated with the QPVA water solution after defoaming to form a membrane, the membrane is placed on a flat heater for drying for 6-9h at 55-65 DEG C to obtain a QPVA anion-exchange membrane; (4) the QPVA anion-exchange membrane is placed into a vacuum oven, vacuum pumping is carried out to heat to 160-190 DEG C, heat preservation is carried out for 0.5-2 hours, and the QPVA anion-exchange membrane after heat treatment is obtained after cooling to the room temperature; and (5) the QPVA anion-exchange membrane after the heat treatment is placed into a saturated sodium sulfate solution containing glutaraldehyde and H2SO4 for chemical crosslinking to obtain the anti-fouling anion-exchange membrane. The anti-fouling anion-exchange membrane has excellent anti-fouling performance and a low swelling degree.

The invention discloses a preparation method of a proton exchange membrane, and the method comprises the following steps: adding an initiator into a mixed solution of binary olefin amine, vinyl sulfonate and a water solvent at the reaction temperature of 65-80 DEG C under the nitrogen condition to initiate free radical polymerization reaction of the binary olefin amine and the vinyl sulfonate to obtain a linear prepolymer solution; then mixing the linear prepolymer solution with a perfluorinated sulfonic acid resin dispersion liquid and mixed polyol according to a preset proportion for reaction to obtain polymer slurry; and finally, coating the polymer slurry to form a membrane, and drying and curing the membrane formed by coating to obtain the proton exchange membrane with a cross-linked interpenetrating network structure. According to the preparation method, a high-stability cross-linked polymer network is taken as a framework, an interpenetrating network is realized with perfluorosulfonic acid polymer molecules, the swelling degree of the proton exchange membrane is inhibited macroscopically and microcosmically, and the invention also discloses the proton exchange membrane prepared by the preparation method and a fuel cell comprising the proton exchange membrane.

The invention discloses a preparation method of a proton exchanging composite film, comprising the following steps: mixing organosilane containing aminoalkyl and water to form mixed solution; adding acid into the mixed solution and reacting to obtain modification solution; and immersing a proton exchanging film into the modification solution to obtain the proton exchanging composite film. Compared with the prior art, the preparation method has the advantages that: the proton exchanging film is modified under an acidic condition by utilizing the hydrolyzed organosilane containing the aminoalkyl, the organosilane containing the aminoalkyl and acid are subjected to sol-gel reaction on the surface of the proton exchanging film, and the organosilane is modified on the surface of the proton exchanging film. The organosilane containing the amionalkyl has favorable mechanical property, therefore, the swelling property of the proton exchanging film and the methanol transmission property are inhibited, and meanwhile, the favorable mechanical property of the proton exchanging composite film is ensured. Test results prove that the proton exchanging composite film prepared by the invention hasfavorable proton transmission property, lower methanol transmittance and favorable mechanical property.

The invention provides a composition for cleaning a photodegradable polyimide alignment film. Specifically, the composition can satisfy cleaning property and swelling rejection capability through a solvent in a specific structure. The invention provides a composition for cleaning a photodegradable polyimide alignment film. The composition contains a butyl-hydroxylic solvent represented by the following chemical formula. In the chemical formula, R1 is alphatic hydrocarbon with 1-6 carbon number.