1322results about How to "Reduce surface tension" patented technology

A boron-containing polyethylene glycol fatty acid ester surfactant belongs to the field of organic chemistry and functional materials. The boron-containing polyethylene glycol fatty acid ester surfactant is prepared as follows: polyethylene glycol (PEG), boric acid and fatty acid are used as raw materials, first esterification reaction of the PEG and the boric acid is performed, then esterification reaction of the PEG and the fatty acid is performed to obtain boron-containing poly ethylene glycol fatty acid ester; by changing the species of fatty acids and catalysts and molecular weight of the PEG, the esterification rate can be enhanced, the boron-containing poly ethylene glycol fatty acid ester product can be used as a surfactant, and the boron-containing poly ethylene glycol fatty acid ester can reduce water surface tension and has good emulsifying properties.

The invention discloses a waterproof heat-resistant adhesive and a preparation method thereof, and relates to the technical field of adhesives. Tetramethyltri-3-trifluoropropyl cyclotetrasiloxane is used as a raw material to prepare hydroxyl-terminated organic fluorosilicone oil and modified epoxy resin, fluorine atoms are closely arranged around a main chain of the hydroxyl-terminated organic fluorosilicone oil and modified epoxy resin in an umbrella shape, and the hydroxyl-terminated organic fluorosilicone oil and modified epoxy resin cooperate with organic silicon to improve the waterproof and heat-resistant effects; hydroxyl groups on the oxidized carbon nanofibers are reacted and combined with thiocyanate in vulcanized rubber powder, and hybrid filler is formed; residual active groups on the surface of the oxidized carbon fiber are combined and crosslinked with epoxy resin, so that the heat resistance of the epoxy resin is greatly improved; secondly, phenyl maleic anhydride is used as a cross-linking agent to form a three-dimensional cross-linked structure, and meanwhile, phenyl is introduced into the structure, so that the heat-resistant effect and the waterproof effect of the epoxy resin are further improved, and the adhesive prepared by taking the epoxy resin as the raw material has excellent waterproof and heat-resistant performance. The adhesive prepared by the invention has waterproof and heat-resistant effects.

The invention discloses a humic acid liquid fertilizer and a preparation method and application thereof, and belongs to the technical field of liquid fertilizers, organic waste and ferric oxide are ball-milled and mixed, transferred into a muffle furnace, roasted for 2-2.5 h at 280-310 DEG C under nitrogen protection, transferred into a reaction kettle and stirred and mixed with a 10 wt% hydrogen peroxide aqueous solution and potassium hydroxide powder, and the humic acid liquid fertilizer is obtained. The preparation method comprises the following steps: adding potassium humate into a potassium humate solution, extracting for 40-60 minutes under the assistance of ultrasonic waves, filtering to obtain a potassium humate extract and filter residues, transferring the potassium humate extract into a stirring kettle, adding urea, dipotassium phosphate, a composite carbon dot lubricant and a suspension stabilizer into the stirring kettle, and uniformly mixing to obtain the humic acid liquid fertilizer. The suspension stabilizer can reduce the generation of flocculation and crystallization in the liquid fertilizer, and through the antifriction and lubrication effects of the composite carbon dot lubricant, the friction force between indissolvable solids and water outlet holes of the drip irrigation equipment is reduced, and the risk of blockage of the drip irrigation equipment is reduced.

The invention discloses an organic silicon cooling liquid and a preparation method thereof, the product has low viscosity and high flash point, and relates to the field of application of single-phase cooling liquid for heat dissipation of heating equipment, and the specific method comprises the following steps: uniformly mixing olefin and a catalyst at 20-30 DEG C, heating to 35-45 DEG C, dropwise adding hydrogen-containing siloxane, and controlling the temperature of the reaction liquid to be in a range of 60-130 DEG C; after adding, continuously stirring; cooling after the reaction is finished, and removing residual olefin to obtain a final product with a general formula of (CH3) 3SiO-[R1R2SiO] nSi (CH3) 3, wherein R1 is an alkyl group ranging from 8 to 16; r2 is a methyl group or a trimethylsiloxy group; n is equal to 1-2. The prepared single-phase organic silicon cooling liquid has the performance of high flash point and low viscosity, is low in surface tension, good in fluidity, more comprehensive in coverage, better in heat dissipation effect, good in compatibility with materials of a data center, free of swelling and other damage with related materials, and safe and long-acting.

The invention discloses a lithium iron phosphate carbon nanotube composite material and a preparation method thereof, and belongs to the technical field of battery materials. The polydopamine is used as a carbon source to coat the lithium iron phosphate, so that the direct contact between the lithium iron phosphate and the electrolyte is avoided; meanwhile, the compatibility of the carbon nanotube composite material and the lithium iron phosphate is enhanced due to the strong adhesion, so that the carbon nanotube composite material is favorably adsorbed on the lithium iron phosphate to be sintered; a carbon coating layer formed by polydopamine and the carbon nanotubes are beneficial to permeation of an electrolyte and exposure of surface active sites, and metal ions are introduced into the carbon nanotubes of the carbon nanotube composite material, so that the electrochemical performance of the material is improved, and meanwhile, the carbon nanotubes are supported; the condition that the cyclicity of the material is reduced due to collapse of the carbon nano tube in the reaction process is prevented; cobalt is introduced outside the carbon nano tube, so that the energy density of the battery can be improved, the structures of the carbon nano tube and the positive electrode material can be stabilized, and the degradation of the material is reduced.

The invention discloses a marine low-temperature concrete additive and a preparation method thereof, and belongs to the technical field of concrete admixtures. The marine low-temperature concrete additive is prepared from the following raw materials: silane / polymer hybrid modified silicon dioxide, anti-freezing fibers, an air entraining and water reducing agent, silica fume, sodium hexametaphosphate and calcium chloride. Through scientific proportioning of silane / polymer hybrid modified silicon dioxide, compound anti-freezing fibers and other components, on one hand, cement matrix interface bonding is enhanced, the integrity of the internal structure of concrete is improved, microcrack initiation in the freezing and thawing cycle process is reduced, and the surface hydrophilicity of the hybrid modified silicon dioxide is enhanced; according to the present invention, by adding the cross-linked polymer, the dispersibility can be improved, the pore structure of the concrete can be optimized, the macroporosity can be reduced so as to reduce the freeze-thaw damage risk and improve the freeze-thaw erosion resistance of the concrete, and the cross-linked network structure is formed in the cement matrix so as to improve the strength and the toughness of the concrete and enhance the freeze-thaw resistance.

The invention discloses narrow-distribution fatty alcohol-polyoxyethylene ether and a preparation method and application thereof.The preparation method mainly comprises the following steps that 1, fatty alcohol with different carbon chain lengths serves as an initiator and is subjected to an addition reaction with ethylene oxide under the action of a basic catalyst, and then an intermediate is prepared through the processes of acid neutralization, adsorption separation and the like; and (2) reacting the intermediate prepared in the step (1) with ethylene oxide under the action of a composite catalyst by taking the intermediate prepared in the step (1) as an initiator to prepare the narrow-distribution fatty alcohol-polyoxyethylene ether. The preparation method provided by the invention has the advantages of high reaction speed, high product yield and the like, the production cost of industrial products can be effectively reduced, the prepared narrow-distribution fatty alcohol-polyoxyethylene ether is narrow in relative molecular mass distribution, low in residual alcohol content and free of high-EO polyether components, and compared with a traditional fatty alcohol polyether product catalyzed by a single base, the narrow-distribution fatty alcohol-polyoxyethylene ether has the advantages that the reaction speed is high, and the product yield is high. The pour point is lower, and the wettability on fabrics and hard surfaces is obviously superior.

The invention discloses high-temperature and high-pressure filtrate reducer sulfonated asphalt for drilling fluid and a preparation method of the high-temperature and high-pressure filtrate reducer sulfonated asphalt, and belongs to the technical field of filtrate reducers. A comb-shaped side chain is introduced into a benzene ring of SEBS, the benzene ring is endowed with a comb-shaped structure, the structure strongly interacts with sulfonated asphalt, asphalt dispersion is optimized, agglomeration is avoided, 5-(2-hydroxyethyl) uracil is introduced, the oleophylic and hydrophilic characteristics are balanced, the acting force between asphalt particles is reduced, the reaction efficiency and uniformity of asphalt and fuming sulfuric acid are improved, and the sulfonated asphalt is prepared. The dispersant promotes uniform dispersion of asphalt, accelerates sulfonation reaction and improves sulfonated asphalt quality. The surface activity of the modified SEBS and the sulfonated asphalt form a net structure, so that the water solubility of the asphalt is enhanced, the drilling fluid is convenient to blend, the liquid surface tension is reduced, and the bubble formation condition is destroyed. A quaternary ammonium salt group is introduced, a well wall is stabilized by utilizing an opposite attraction principle, clay hydrophobicity is promoted, hydration and expansion are inhibited, and collapse is prevented. The modified sulfonated asphalt is resistant to temperature and pressure, good in filtration resistance and stable in filtration control at high temperature and high pressure.

The invention provides an efficient environment-friendly silicon-based foam extinguishing agent synergistically compounded by a multi-silicon surfactant and a preparation method of the efficient environment-friendly silicon-based foam extinguishing agent. The cleaning agent is prepared from raw materials in percentage by mass as follows: 5%-35% of an ionic silicon surfactant, 5%-35% of a nonionic silicon surfactant, 0.1%-3% of a polysaccharide foam stabilizer, 1%-10% of a cosolvent, 0.1%-10% of a preservative, 1%-10% of an antifreeze agent, 0.1%-5% of a regulator and the balance of deionized water. According to the invention, the ionic silicon surfactant and the nonionic silicon surfactant are compounded for use, hydrophobic and oleophobic tetrasiloxane groups and trisiloxane groups are used as spreading agents of an oil-water interface, and the formula of the foam extinguishing agent only contains the silicon surfactant; the liquid fuel fire extinguishing agent does not contain a forbidden fluorocarbon surfactant and a hydrocarbon surfactant with an oleophylic end, so that the environmental hazard of the fluorocarbon surfactant is completely eradicated, the oleophylic property of the foam fire extinguishing agent is eliminated, and the liquid fuel fire can be extinguished. The invention has positive significance on environment protection, human health protection and sustainable development of foam fire extinguishing technology.

The invention provides ultra-high performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from cement, silica fume, mineral powder, fly ash, coarse sand, fine sand, a high-performance water reducing agent, a defoaming agent, a retarder, water, steel fibers, modified nano-silica sol and a wetting agent. Wherein the modified nano silicon dioxide sol is prepared by the following method: reacting a double-bond-containing silane coupling agent with unsaturated olefine acid to obtain a carboxyl-containing silane coupling agent, and then performing graft modification on the nano silicon dioxide sol by using the carboxyl-containing silane coupling agent to obtain the modified nano silicon dioxide sol. The concrete disclosed by the invention is compact in internal structure, ultrahigh in compressive strength and breaking strength and high in durability and impact resistance, and the compressive strength during normal-temperature curing is stabilized to be 200MPa or above.

The invention relates to the technical field of seawater desalination, in particular to a seawater desalination reverse osmosis membrane, a preparation method and application. The seawater desalination reverse osmosis membrane is prepared by the preparation method. The preparation method comprises the following steps: immersing the prepared support layer into a water phase solution, and then taking out the support layer adsorbing the water phase solution; immersing the support layer adsorbing the water phase solution into a first oil phase solution, and forming a primary reverse osmosis membrane through a first interfacial polymerization reaction; then, taking out the primary reverse osmosis membrane, and carrying out first drying treatment under a steam condition; and immersing the primary reverse osmosis membrane into a second oil phase solution, and carrying out a second interfacial polymerization reaction to form the seawater desalination reverse osmosis membrane. The application refers to the application of the reverse osmosis membrane for seawater desalination in the aspects of reclaimed water reuse, seawater desalination and brackish water desalination. According to the invention, the seawater desalination reverse osmosis membrane which simultaneously meets high desalination rate and high water flux can be prepared.

The invention belongs to the technical field of quartz sand preparation, and discloses high-purity quartz sand and a preparation method thereof. The method comprises the following steps: by taking water, mixed alkali and silicon powder as raw materials, uniformly stirring the silicon powder, the water and an additive to prepare silicon sludge, adding the rest raw materials into a reaction kettle, heating, then adding the silicon sludge into the reaction kettle in a frequency division manner, reacting to obtain a sodium silicate solution, removing anion and cation impurities, then adding an acid solution, heating to obtain silicic acid gel, and drying to obtain the silica gel. The silicic acid gel is subjected to freezing treatment, vacuum microwave drying and chloridizing roasting after unfreezing are conducted, and the high-purity quartz sand is obtained. According to the preparation method, the quartz sand with the purity higher than 99.9999% can be synthesized, the granularity of the quartz sand can be controlled according to the adding proportion of the acid solution, the content of gas-liquid inclusion in the quartz sand is remarkably reduced, and the quality of the quartz sand is improved.

The invention relates to a preparation method of a photovoltaic welding strip, the photovoltaic welding strip, a photovoltaic module and a preparation method, and the preparation method comprises the following steps: S1, carrying out the oxide removal and annealing treatment of an oxygen-free copper wire at the same time, and obtaining an annealed copper strip after cooling; s2, in the protection environment of inert gas, the annealed copper strip is immersed in molten brazing filler metal alloy liquid for surface tin plating, and after cooling, a plated copper strip with an alloy plating layer is obtained; s3, oxide on the surface of the plated copper strip is removed; s4, immersing the plated copper strip subjected to oxide removal into a film forming substance, and drying to obtain a film forming welding strip; wherein the film forming substance does not contain carboxyl. According to the method, oxide removal and annealing treatment are carried out at the same time, the photovoltaic welding strip which is high in preparation efficiency and can be welded without participation of scaling powder can be achieved, the photovoltaic welding strip is combined with the preparation technology of a photovoltaic module, and a high-reliability module can be obtained.

The invention discloses quick-dry water-based ink and a preparation method thereof, and relates to the technical field of ink. The preparation method comprises the following steps: firstly, enabling 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide to participate in a polymerization reaction of acrylic acid and butyl acrylate, and preparing 4, 6-bis (allyloxy)-n-butyl-1, 3, 5-thiazine-2-amine and vinyl sulfonamide through a two-step emulsion polymerization method; the core-shell structure modified polyester emulsion with 2, 5-thiazine-2-amine and vinyl sulfonamide as soft shells and acrylic acid and butyl acrylate as hard cores improves the wear resistance and durability of the ink. Then allyl polyether reacts with 2-(p-chlorphenyl) ethylene oxide, so that the drying time is shortened, and the wear resistance of the ink is improved; then through addition reaction of reactants, bis (2-ethoxyl) dimethyl ammonium chloride and hydrogen-containing silicone oil, the epoxy-amino-polyether combined modified silicone oil flatting agent is formed, the flatting agent has hydrophilicity and hydrophobicity, the drying speed is increased, and the wear-resistant effect is improved.

The invention relates to the technical field of battery binders, in particular to a water-based binder, a preparation method of the water-based binder and a carbon-coated aluminum foil. The water-based binder comprises a water-soluble monomer, an oil-soluble monomer, an amphiphilic monomer, a functional monomer, an initiator and a neutralizer, the amphiphilic monomer is prepared from at least one of sodium vinyl sulfonate, sodium p-styrenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid and N-vinyl pyrrolidone; the functional monomer comprises at least one of divinylbenzene, pyrrole, phenylacetylene and 3, 4-ethylenedioxythiophene. According to the water-based binder, the water-soluble monomer, the oil-soluble monomer, the amphiphilic monomer and the functional monomer are compounded in proportion, the conductivity of the binder, the wettability to a conductive carbon material and an aluminum foil, the adhesion to the aluminum foil and the like are improved, the prepared battery has excellent cycle stability, and the service life of the battery is prolonged.

The invention relates to the technical field of defoaming agents, and discloses a polyether modified organic silicon defoaming agent and a preparation method thereof. The polyether modified organic silicon defoaming agent is prepared from the following raw materials in parts by mass: 10 to 30 parts of polyether modified organic silicon, 20 to 40 parts of simethicone, 2 to 5 parts of modified mesoporous silicon dioxide, 2 to 4 parts of a thickening agent, 6 to 10 parts of an emulsifying agent and 35 to 55 parts of deionized water. The preparation method comprises the following steps: firstly, synthesizing hydrogen-terminated organic silicon with a hyperbranched structure, then synthesizing polyether containing a double-bond structure, and connecting the hydrogen-terminated organic silicon and the polyether with a hydrosilylation method to synthesize polyether modified organic silicon; secondly, synthesizing mesoporous silica with an amino group on the surface, and grafting the fluorine-containing chain segment on the mesoporous silica to synthesize modified mesoporous silica; by adopting the synergistic effect of the two components, the defoaming and foam inhibiting properties of a matrix in the foaming liquid are improved, and meanwhile, the foaming liquid has very good wettability and stability.

The invention relates to the technical field of defoaming agents, and discloses a modified organic silicon defoaming agent and a preparation method thereof.The modified organic silicon defoaming agent takes hydrogen-containing silicone oil as a base material, polyether modified carboxymethyl cellulose and modified white carbon black are used for modifying the base material to obtain the modified organic silicon defoaming agent, and after the white carbon black is modified, the modified organic silicon defoaming agent is prepared. According to the present invention, the polyether modified organic silicon is uniformly and stably distributed in the system so as to improve the defoaming efficiency, the carboxymethyl cellulose has characteristics of excellent thickening property, excellent film forming property and excellent stability, can improve the consistency of the organic silicon defoaming agent, can help to form the stable film layer, can easily adhere and disperse the active component of the defoaming agent, and can improve the defoaming effect; the surface property of the modified organic silicon is improved, the modified organic silicon has better hydrophilicity and wettability, the structural stability of the silicone oil is improved, all the components have a synergistic effect, and the prepared modified organic silicon has excellent defoaming and foam inhibiting effects, meanwhile, the dispersity is good, the heat resistance and stability are improved, and the application range is wide.

The invention provides a preparation method of an electrode with a polymer solid electrolyte and a lithium battery, and the preparation method comprises the following steps: S1, adding an adhesive and a conductive agent into an electrode material, dissolving in N-methyl pyrrolidone, and mixing and stirring to form slurry; and S2, coating a current collector with the slurry to form a pole piece. And S3, drying the coated pole piece, then rolling the pole piece, and recording the pole piece as a marked pole piece. S4, adding a lithium salt into the polymer to form a first solution; uniformly stirring and mixing the first solution, and adding an initiator to obtain a precursor solution; and S5, adding a surfactant into the precursor solution to form an active precursor solution. And S6, dropwise adding the active precursor solution on the marked electrode plate, and carrying out high-temperature standing operation on the marked electrode plate for 5-300min in a temperature range of 30-100 DEG C to obtain the electrode with the polymer solid electrolyte.

The invention relates to a gold leaching agent for a waste circuit board and a method for selectively and preferentially leaching gold. The gold leaching agent comprises carbonized sodium cyanurate, alkaline thiourea, alkaline polymeric iron, alkali, carbonate, an anionic surfactant and water. The mass ratio of the carbonized sodium cyanurate to the alkaline thiourea to the alkaline polymeric iron to the alkali to the carbonate to the anionic surfactant to the water is (0.01-5): (0.01-5): (0.1-1): (0.1-1): (0.1-1): (0.01-5): (50-100); wherein the anionic surfactant is sodium m-nitro-p-toluenesulfonate and / or sodium nitrobenzene sulfonate; by means of the gold leaching agent, gold on the waste circuit board can be effectively leached out, and the leaching rate and the reaction efficiency are both high.

The present invention discloses a copper-molybdenum metal etching liquid composition, and the raw materials for preparing the composition include a main agent and an auxiliary agent, including hydrogen peroxide, an organic acid, an amino base, a stabilizer, an electrochemical inhibitor, an alcohol additive, and a solvent. The present invention adopts ethylene glycol and an electrochemical inhibitor to synergize, reduce the surface tension between the etching solution and the metal film layer, enhance the adhesion rate of the etching solution and the metal film layer, and can perfectly solve the chamfering problem in the etching process. And by using isobutanolamine and triethanolamine as amino base I, copper ions can be complexed, the decomposition rate of hydrogen peroxide can be stabilized, the etching rate balance can be maintained, and a good etching morphology can be achieved, with excellent Taper angle, CD-Bais, and small variation, so that it can load a copper ion concentration of 12000ppm, and the lower limit of molybdenum residue reaches 0.45μm, with an excellent etching range, meeting the impact of customer process fluctuations on production, and being environmentally friendly, and the cost of waste liquid treatment is low.

The invention relates to the technical field of electroslag remelting slag. The invention discloses a special slag system for an ingot pulling type electroslag remelting nitrogen-controlled austenitic stainless steel ingot, which comprises the following components in percentage by mass: 45-50% of CaF2, 25-30% of Al2O3, 15-20% of CaO, 3-6% of MgO, 5-10% of SiO2 and the balance of impurities, and the content of the impurities is less than or equal to 1%. The binary alkalinity CaO / SiO2 is 1.5 to 4; the melting point of the special slag system is 1250-1280 DEG C, the viscosity value of the special slag system at the temperature of 1600 DEG C is 0.044-0.053 Pa.s, and the resistivity of the special slag system at the temperature of 1600 DEG C is 0.51-0.55 omega.cm. According to the slag system, by optimizing the components of the slag system, the physical and chemical properties of the slag system are further improved, the slag-metal reaction is inhibited, and the production process requirements of ingot pulling type electroslag remelting large stainless steel ingots are met. The produced nitrogen-controlled austenitic stainless steel ingot is good in surface quality and free of defects such as obvious pits, slag runners and double skins; and easily oxidized elements Al and Si in the steel in the remelting process are uniformly distributed in the height direction of the cast ingot, so that the uniformity of alloy textures is ensured.

The invention relates to the technical field of foaming agents, and discloses a high-temperature-resistant foaming agent and a preparation method thereof. The high-temperature-resistant foaming agent is obtained by adding sulphobetaine modified benzoxazine, melamine benzene sulfonate modified polyoxyethylene ether, lauryl sodium sulfate and a polyvinyl alcohol foam stabilizer into water, stirring and mixing. The benzoxazine structure has relatively high rigidity and stability at a high temperature; sulfobetaine is an ampholytic surfactant and has high foaming capacity, sulfonic acid groups are high in temperature resistance, and the foaming performance and the high temperature resistance of the foaming agent are improved; melamine molecules are not easy to decompose at high temperature, so that the high temperature resistance of the foaming agent is improved; polyoxyethylene ether is a nonionic surfactant and has remarkable surface activity, the sulfonic acid group anions and the polyoxyethylene ether nonionic surfactant play a synergistic role, mixed micelles are formed in an aqueous solution, and the foaming performance of the foaming agent is improved.

The invention relates to the technical field of stripping liquids, and discloses a water-based photoresist stripping liquid for the AMOLED (Active Matrix / Organic Light Emitting Diode) field, which comprises the following components in percentage by mass: 15-20% of 2, 2-dimethylolpropionic acid, 25-30% of diethylene glycol monobutyl ether, 8-10% of diethylene glycol monomethyl ether, 5-8% of diethanol amine, 1.5-3% of a metal protective agent, 0.5-1% of a surfactant and the balance of pure water. According to the stripping liquid, raw materials including 2, 2-dimethylolpropionic acid, diethylene glycol monomethyl ether and diethylene glycol monobutyl ether are subjected to double-tower distillation, metal ions are reduced to 100 ppt, the pollution possibility is eliminated, and metal impurities and granularity in the stripping liquid production process are controlled. According to the invention, the proper metal protective agent and surfactant are adopted, so that the metal silver is protected in the stripping process, the surface tension is reduced, the permeability of the solution is improved, and the problem of photoresist residue is solved.

The invention discloses a preparation method and application of a powder coating for a super-weather-resistant high-flexibility coiled material, and relates to the technical field of powder coatings. The invention discloses a preparation method of a powder coating for a super-weather-resistant high-flexibility coiled material, which comprises the following steps: mixing filler modified polyester resin, a curing agent, a defoaming agent, a flatting agent, an adhesion promoter and polytetrafluoroethylene wax according to the weight percentage of the raw materials to obtain the powder coating; the filler modified polyester resin disclosed by the invention is obtained by reacting aminated hydroxyl-terminated polyester, phosphorous acid and epoxy modified graphene oxide and then carboxylating by butanedioic anhydride; the filler modified polyester resin prepared by the invention is added into a coating as a base material of a powder coating, so that the coating is endowed with the characteristics of high weather resistance and high flexibility.

The invention discloses incombustible water-based aerosol spray paint and a preparation method thereof, and relates to the technical field of spray paint. When the non-combustible water-based aerosol spray paint is prepared, firstly, p-(triethoxysilyl) acetophenone reacts with trimethylchlorosilane, and then the reaction product and tetramethyl tetravinyl cyclotetrasiloxane are subjected to ring opening polymerization to obtain modified polysiloxane; grafting epoxy resin with 4-vinyl-methyl benzoate, reacting with modified polysiloxane to obtain modified epoxy resin, and emulsifying to obtain a modified epoxy resin emulsion; secondly, reacting the silicon dioxide subjected to acylating chlorination with 4-hydroxy-2, 2, 6, 6-tetramethylpiperidine nitroxide free radicals, reacting with 3-(3-thienyl) propionaldehyde, and reacting with thiophene and 3-vinyl thiophene to obtain modified silicon dioxide; and finally, mixing the modified epoxy resin emulsion, pure water, the modified silicon dioxide, a curing agent and a photoinitiator to prepare the incombustible water-based aerosol spray paint.

The invention relates to the technical field of ink, in particular to high-adhesion printing ink and a printing process thereof. According to the scheme, the polyurethane is used as a binder, the polyurethane emulsion, the isopropanol, the color paste and other components are mixed and uniformly stirred to obtain the printing ink, and the polyol monomer and the chain extender are introduced in the scheme, so that not only can the adhesiveness of the printing ink to a PET base material be improved, but also the crosslinking density of the polyurethane can be improved, and the water resistance of the printing ink is improved. The printing ink can adapt to a printing base material with low surface energy, the adhesion performance of the printing ink on the base material is improved, and the printing ink has excellent water resistance and comprehensive performance.

The invention discloses polyether modified silicone oil for improving polyol compatibility and application of the polyether modified silicone oil in a polyurethane foam composition. The structure of the polyether modified silicone oil simultaneously comprises the following chain segments: (a) a polyoxyethylene ether chain segment; and (b) alkylated polyoxyethylene polyoxypropylene ether chain segments, wherein EO and PO can be random copolymerization or block copolymerization. Wherein the molar ratio of the polyoxyethylene ether chain segment to the alkylated polyoxyethylene polyoxypropylene ether chain segment is 1: (0.6-4), preferably 1: (1-2). The polyurethane composition comprises a component A and a component B, the component A is an isocyanate reactive component and comprises polyol, a catalyst, a foaming agent and polyether modified silicone oil; and the component B is an isocyanate component. The polyether modified silicone oil has the functions of a compatilizer and a foam stabilizer, and a polyurethane composition has good storage performance and foaming stability and can be used for preparing a polyurethane foaming material.

The invention discloses a distillation purification method for preparing a silane coupling agent, and belongs to the technical field of preparation of silane coupling agents. The distillation and purification method for preparing the silane coupling agent comprises the following steps: step 1, mixing a silane coupling agent crude product, tetrahydrofuran, an organic antioxidant and an auxiliary agent, heating, mixing and stirring to obtain a mixture; 2, adding the mixture into a distillation tower, heating and distilling, controlling the heating temperature and the distillation rate, and ensuring stable and continuous evaporation and condensation of the silane coupling agent; and 3, collecting the condensed liquid into a collector, separating the liquid, filtering, and drying to obtain the silane coupling agent. According to the method, the product purity and yield of the silane coupling agent can be effectively improved.

The invention relates to the technical field of concrete compacting agents, and provides an internal doping type self-repairing concrete compacting agent which comprises the following components in parts by weight: 10-15 parts of a water-soluble polymer, 12-18 parts of an expanding agent, 1-3 parts of a shrinkage reducing agent, 2-8 parts of organic fibers, 10-15 parts of a modifier and 30-50 parts of a diluent, the modifier comprises bauxite, diatomite and forsterite powder in a mass ratio of 1: 1: 8-8: 1: 1. According to the technical scheme, the problem that the concrete compacting agent in the related technology is poor in improvement of the anti-permeability performance of concrete is solved.

The invention relates to the technical field of oil well paraffin removal and prevention, and discloses a paraffin removal and prevention agent for an oil well shaft and a preparation process. The paraffin remover and inhibitor for the oil well shaft comprises the following components in parts by weight: 10-25 parts of a compound surfactant, 15-30 parts of a mutual solvent, 5-10 parts of a stabilizer, 1-10 parts of a novel wax crystal improver, 0.2-0.5 part of a rapid penetrant, 0.5-1.5 parts of alkali and 25-70 parts of water, the novel wax crystal improver has a structure similar to that of paraffin, and wax crystals can be dissolved in the novel wax crystal improver, so that the wax crystals are not easy to gather and deposit on a pipe wall, and the dissolution rate of the wax crystals is further improved; sodium sulfonate in the structure has strong polarity and hydrophilicity, can adjust the crystallinity of paraffin inhibitor molecules, has a synergistic effect with asphalt, colloid and the like in crude oil, reduces the surface tension of water, has a good wetting effect, and improves the low-temperature fluidity of the crude oil.