30results about How to "Solve the problem of easy reunion" patented technology

The invention belongs to the field of functionalized porous nanometer materials, and relates to a preparation method of a ferrocobalt sulfide nanotube loaded carbon sponge flexible composite material.The preparation method comprises the following specific steps: cutting commercial tripolycyanamide sponge, then washing with distilled water and absolute ethyl alcohol, after drying, in a nitrogen orargon atmosphere, burning the tripolycyanamide sponge through temperature programming, carrying out carbonization treatment, and cooling to obtain carbon sponge; preparing a mixed solution containinga ferric salt and a cobalt salt, immerging the carbon sponge into the mixed solution, adding a pH accessory ingredient, carrying out a hydrothermal reaction to obtain a ferrocobalt precursor-carbon sponge composite material, then immerging the ferrocobalt precursor-carbon sponge composite material into a vulcanizing agent solution, and carrying out a secondary hydrothermal reaction to obtain theferrocobalt sulfide nanotube loaded carbon sponge flexible composite material. According to the preparation method, the flexible, porous and self-supporting carbon sponge is taken as a growth template, and the difficulty that a nanometer material is easy to cluster is solved successfully; and the obtained composite material has a great number of exposed active sites, abundant holes and good conductivity.

The invention provides a graphene dispersion liquid for anticorrosive coatings for oil pipes and a preparation method of the graphene dispersion liquid. The graphene dispersion liquid is composed of graphene, a mixed solvent, a solubilizing agent and a coupling agent; the mixed solvent comprises dimethylbenzene, N, N-dimethylformamide, N-methylpyrrolidone and 1, 4-butanediol diglycidyl ether; themixed solvent may also comprise one or more of ethyl acetate, ethylene glycol butyl ether, butyl acetate, cyclohexanone and isoamyl acetate. The graphene dispersion liquid prepared by the invention has good graphene peeling property and obvious laminated structure, improves dispersibility of graphene, and can be added into the anticorrosive coatings to give full play to excellent physicochemical properties of the graphene and improve overall performance of the anticorrosive coatings, especially high-temperature and high-pressure resistance.

The invention discloses a method for preparing a nano ZnO-GO/waterborne polyurethane super-amphiphobic coating through a spraying method. An ultrasonic hydrothermal composite method is adopted, nano zinc oxide is modified through perfluorooctyl trichlorosilane, then the modified nano ZnO carries GO, and nano ZnO-GO composite substance is obtained; a waterborne polyurethane layer is prepare on thesurface of a substrate; then a low-surfacce-energy nano ZnO-GO composite substance layer is established on the surface of the waterborne polyurethane layer; and after coating curing is finished, the surface topography and the static contact angle of a cured coating are tested. By means of the method, the surface energy of the nano zinc oxide is lowered, the surface hydrophobicity and lipophobicityof the nano ZnO-GO composite substance layer after fluoridation treatment are improved, the super-amphiphobic effect is achieved, and the stability of the coating is improved. The method is low in production cost, the preparation method is simple, the requirement for a reaction facility is low, the reaction conditions are mild, no environmental pollution occurs, and large-scale production can beachieved.

The invention discloses a heteropolyacid ionic liquid supported aminated magnetic composite of a date cake structure, a preparation method and an application. The composite is prepared from raw materials including a heteropolyacid ionic liquid and an aminated magnetic composite by supporting the heteropolyacid ionic liquid on an aminated nano magnetic material with an ultrasonic immersing method.The preparation steps are shown as follows: firstly, the heteropolyacid ionic liquid is prepared through a substitution reaction, the aminated magnetic composite is prepared with a solvothermal method, and the heteropolyacid ionic liquid supported aminated magnetic composite is prepared with an ultrasonic supporting method. The product obtained with the method is powdery and brown, has uniform particle size distribution and has the date cake structure and stable properties. The defect of high probability of agglomeration of the magnetic materials is overcome, and the obtained material has gooddispersity, high magnetism and high yield, and raw materials are easy to obtain; the composite has magnetism and catalytic activity and can be effectively used for a catalyst for desulfuration of petroleum samples, and the catalyst can be separately recycled.

The invention provides a preparation method and application of a self-early-warning coaxial electrostatic spinning fiber. Comprising the following steps: respectively adding chitosan and polyvinyl alcohol into a solvent, and dissolving to obtain two solutions; mixing the two solutions according to a certain proportion to obtain a shell solution, and preparing the film by taking the indicator solution as a core solution and adopting a coaxial electrostatic spinning method. And loading the self-early-warning fiber into the resin to obtain the self-repairing coating with the self-early-warning function. According to the invention, the loading stability and uniformity of the indicator in coaxial fibers can be effectively improved. The Q235 steel is used as a research substrate, when the coating is damaged, the indicator in the coaxial fiber is released and is combined with iron ions on the metal surface, obvious color change is generated, and a damage early warning function is achieved. Meanwhile, indicator molecules can form a dense film on the surface of steel to prevent corrosion of a base material. The composite coating based on the self-early-warning coaxial fiber has the functions of indicating and repairing damage, and has huge potential in practical application of material protection.

The invention discloses a preparation method and application of a self-supporting binder-free flexible SiO2@C composite material. The self-supporting binder-free flexible SiO2@C composite material isprepared by adopting a one-step hydrothermal method, and the synthesis process is simple and easy to operate. Moreover, carbon cloth is selected as a carbon substrate, and the material is cheap and easily available. Besides, nanoscale SiO2 particles are provided with more lithium ion contact sites on the surfaces and can be sufficiently reacted with lithium, and the carbon cloth is used as a SiO2particle carrier, so that the nano particles are uniformly distributed on the surface of the carbon fiber, and the problem that the nano particles are easy to agglomerate is solved. In addition, carbon fibers can form a conductive carbon fiber network, electrons are easy to transmit, and the electrons are smooth and unobstructed on the whole flexible substrate.

The invention provides a high-barrier polyurethane self-repairing composition and a preparation method thereof. The high-barrier polyurethane self-repairing composition comprises the following components in mass ratio: 20-30 of polyisocyanate, 55-65 of polyhydric alcohol, 3-8 of a chain extender, 5-10 of graphene microcapsules, 1-2 of an anti-aging auxiliary agent, 2-6 of talcum powder and 1-3 of acatalyzer. The graphene microcapsule is of a double-wrapping structure, a wall material is methacrylonitrile, a central core material is silica sol, and a middle core material between the wall material and the central core material is graphene oxide. The prepared high-barrier polyurethane self-repairing composition has an excellent self-repairing function, micro-mark repairing can be rapidly achieved when the high-barrier polyurethane self-repairing composition is heated, meanwhile, excellent barrier performance is achieved, erosion of external water vapor and salt can be effectively blocked, and the protection effect is better.

The invention provides a pearlescent dye for papermaking and a preparation method thereof, and relates to the technical field of dyes for paper. The pearlescent dye for papermaking is prepared from modified kaolin, citric acid, neopentyl glycol, pearlescent pigment, thickener, dispersant and deionized water. The pearlescent dye for papermaking is used for paper surface printing, is good in paper decoration effect, has high glossiness and is bright and excellent in color fidelity, the dyed paper does not shade easily after being used for a period of time, the dye stability is good, the paper surface is smooth and fine, the paper is good in touch, natural and straight, and the addition of the pearlescent pigment makes the paper color expression layers rich, realistic and moving.

The invention discloses nano zirconium phosphate with functions of catalyzing char-forming and quenching free radicals as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly intercalating and stripping nano zirconium phosphate by using an intercalator, carrying out acidification treatment to remove the intercalator and obtain single-laminar nano zirconium phosphate; and then grafting a phosphaphenanthrene group to the single-laminar nano zirconium phosphate through a silane coupling agent to prepare nano zirconium phosphate with the functions of catalyzing char-forming and quenching free radicals. Compared with the prior art, the prepared nano zirconium phosphate has excellent functions of catalyzing char-forming and quenching free radicals, is capable of effectively catalyzing char-forming of polymer under the high-temperature condition and inhibiting free radical chain reaction of polymer in gaseous phase so as to give high flame resistance to the polymer; a prepared flame-resistant polypropylene material can be widely applied to the fields of automotive exteriors, furniture and electric appliance, wires and cables, building materials and the like.

The invention discloses a laser irradiation PbS quantum dot embedded SnSe thermoelectric material and a preparation method and application thereof, which belong to the technical field of thermoelectric materials and devices. The preparation method comprises the following steps of uniformly dispersing PbS in a solvent to obtain a solution A, and performing irradiation treatment on the solution A through a non-focused laser in ultrasound to obtain a solution B, uniformly dispersing SnCl2.2H2O in a solvent to obtain a solution C, and uniformly dispersing NaSeO3 in the solution C to obtain a solution D, uniformly mixing the solution B and the solution D to obtain a solution E, uniformly dispersing NaOH into the solution E, then carrying out solvothermal reaction, and cleaning and drying an obtained product system to obtain a solid product, and carrying out spark plasma sintering pressing treatment on the solid product to prepare the laser irradiation PbS quantum dot embedded SnSe thermoelectric material. The prepared laser irradiation PbS quantum dot embedded SnSe thermoelectric material improves the conductivity and Seebeck coefficient, and can be applied to preparation of a deep space spacecraft ultra-long life power supply or preparation of a self-powered infinite sensor and other application occasions.

The invention discloses a softening modifier for inorganic fiber and a preparation method thereof. The method comprises the following steps that S10, a dispersant A is prepared; S20, a softener B is prepared; S30, the dispersant A and the softener B are separately packaged to obtain the softening modifier for the inorganic fiber. After the softening modifier for the inorganic fiber is used for modifying the inorganic fiber, the dispersibility and softness of the inorganic fiber can be remarkably improved, the strength of the inorganic fiber is enhanced, the inorganic fiber is not likely to break, and the application range of the inorganic fiber is enlarged.

A preparation method for underground filling cementitious material, characterized in that it comprises the following steps: crushing 40-70 parts of waste glass, 30-40 parts of slag and 10-20 parts of steel slag to an average particle size of 1-15 mm, and mixing uniformly , to obtain a solid mixture; water is added to the solid mixture, the weight ratio of water to the solid mixture is 0.4-0.6, and then 1-2 parts of water reducing agent are added for wet grinding, and the average particle size of the ball mill until the slurry is 1 ‑5 μm to obtain a liquid slurry; add water to the liquid slurry, the weight ratio of water to liquid slurry is 0.5, then add 3‑8 parts of activator, mix and stir evenly, and vibrate completely to obtain underground filling cementitious material . The invention utilizes the characteristic that the slurry is alkaline after wet grinding, and the glass in the mixed slurry excites the slag while completing the self-excitation, fully utilizes the solid waste, improves the utilization rate of the solid waste, reduces the preparation cost, and is energy-saving and environment-friendly. The multifunctional, economical and efficient underground filling cementitious material is prepared, the preparation process is simple, and the cement mortar can be gradually replaced and widely used.

The invention discloses a preparation method of an optical fiber-doped waste mud alkali-activated phosphorous slag geopolymer. The technical scheme comprises the steps of carrying out synergistic wet grinding on 90-200 parts of phosphorus slag and 50-100 parts of nickel slag according to a water-material ratio of 0.3-0.7 until the median particle size is 1-4 [mu]m to obtain slurry A; crushing the optical fiber waste mud, and sieving the crushed optical fiber waste mud through a 1.18 mm sieve to obtain optical fiber waste mud dry powder; carrying out wet grinding on the optical fiber dry powder according to a water-material ratio of 0.3-0.7 until the median particle size is 100-800nm to obtain slurry B; mixing and stirring 120 parts of the slurry A, 35 parts of the optical fiber waste mud dry powder, 5-50 parts of the slurry B, 10-40 parts of phosphogypsum, 20-50 parts of carbide slag, 20-50 parts of Na2CO3 and other materials, and preparing the optical fiber-doped waste mud alkali-activated phosphorous slag geopolymer through a mortar stirring machine according to the mortar ratio of 1: 3. The method is simple to operate, greatly reduces the production cost, solves the problems of solid waste stockpiling land occupation, environmental pollution and the like, and has high economic benefits and environmental benefits.

The invention discloses a method for preparing a waterborne silicate zinc-enriched antirust and antiseptic paint from surface-activated and grafted glass flakes. The method comprises adding and mixingxylene into the glass flakes for dispersion, under nitrogen protection, dropwise adding in KH560 hydrolysate, increasing the temperature for reaction, washing reaction products with xylene and tetrahydrofuran, performing Soxhlet extraction and vacuum drying to obtain surface-activated and grafted KH560 glass flakes, adding and mixing mica iron oxide into absolute methylbenzene, performing ultrasonic treatment, under nitrogen protection, dropwise adding in a mixture of toluene diisocyanate, dibutyltin dilaurate and absolute methylbenzene for reaction, increasing the temperature for further reaction, filtering and repeatedly washing reaction products with absolute methylbenzene to obtain a toluene diisocyanate-modified mica iron oxide filler; mixing film forming materials into a sanding anddispersing mixer, then mixing in deionized water and zinc powder, and then continuing to mixing in the toluene diisocyanate-modified mica iron oxide filler to obtain the waterborne silicate zinc-enriched antirust and antiseptic paint.