1370 results about "ALLYL SUCROSE" patented technology

A biodegradable polymer composite, a method of making the same and use for same are provided. The biodegradable polymer composite has about 30 to 99.5% by weight of a polymer selected from a group consisting of polybutylene adipate terephthalate (PBAT), polybutylene succinate (PBS), polyhydroxyalkanoates (PHA), and polycaprolactone (PCL) grafted with a compatibilizer selected from a group consisting of maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate; and about 0.5 to 50 % by weight a nano-filler or a micro-filler. The biodegradable polymer composite does not contain polylactic acid. Surfaces of the nano-filler or the micro-filler may be modified using a grafting agent so that the biodegradable polymer composite has enhanced mechanical properties, increased heat resistance, compostablity and / or improved processability. The biodegradable polymer composite may be used to make flexible articles, such as a freezer wrap and a farming sheet.

The invention is applicable to the technical field of daily cleaning chemicals, and provides a double-shell probiotic microcapsule which comprises probiotics, a fat-soluble plant extract, cellulose nanocrystals, a polyacrylic acid-chitosan compound, a surfactant, diisocyanate, polyethylene glycol and ethyl acetate. A wall material of the microcapsule is formed by compounding a polyacrylic acid-chitosan compound and a fat-soluble plant extract, the particle size D50 is smaller than or equal to 5 microns, the microcapsule is stable in an environment with the pH being 8-10, and the microcapsule is broken to release probiotics when the pH is smaller than or equal to 6. The outer layer is polyacrylic acid / chitosan compound / polyurethane crosslinking (pH response), the inner layer is coconut oil and soybean oil (fat-soluble core), meanwhile, the material preparation process is simple, the controllable degree is high, and the material is suitable for batch preparation.

The invention discloses a silicon negative electrode binder as well as a preparation method and application thereof. The silicon negative electrode binder is a graft copolymer with a comb-shaped structure; the grafted copolymer comprises a polyurethane chain segment forming a main chain of the comb-shaped structure, a polyacrylic acid chain segment serving as a branch chain and connected to the main chain through a covalent bond, and a fluorine-containing chain segment. According to the preparation method, a graft copolymerization method is adopted, the preparation method is carried out in a water-based system, the silicon negative electrode binder with hardness and softness is obtained, and the silicon negative electrode binder is applied to a lithium battery through the synergistic effect of mechanical property, interface stability and electrochemical performance. And a solution of a key material is provided for a high-capacity and long-cycle lithium battery which takes an active material with high silicon content as a negative electrode.

The invention provides a secondary battery, a preparation method of the secondary battery and an electronic device, the secondary battery comprises a positive electrode plate, a negative electrode plate, a diaphragm and an electrolyte, the negative electrode plate comprises a negative electrode current collector and a negative electrode material layer located on at least one surface of the negative electrode current collector, and the negative electrode material layer comprises hydrophobic modified polyacrylic acid; powder of the negative electrode material layer is dissolved in deionized water to obtain first slurry with the solid content of 45 wt%-50 wt%, the shear rate is 0.1 S <-1 >, the shear viscosity eta of the first slurry is 1 mPa.s, and eta is larger than or equal to 1000 and smaller than or equal to 30000. When the negative electrode material layer comprises the hydrophobic modified polyacrylic acid, in the preparation process of the negative electrode plate, the negative electrode slurry containing the hydrophobic modified polyacrylic acid has the characteristic of high viscosity under low shear, so that the risk of edge thinning after coating is reduced, and the electrode assembly interface in the later period of circulation is improved.

The invention discloses a method for synthesizing electronic-grade ethyl acetate through catalytic esterification of acidic ion exchange resin, and belongs to the technical field of ethyl acetate preparation. The method comprises the following steps: mixing crosslinked polystyrene white balls and a swelling agent, and dropwise adding concentrated sulfuric acid for reaction to obtain S-PS resin; mixing an EDTA disodium salt saturated solution and a polyacrylic acid solution, adding a cross-linking agent and an emulsifier, and carrying out a cross-linking curing reaction to obtain EDTA microcapsules; the preparation method comprises the following steps: dispersing S-PS resin in a solvent, adding EDTA microcapsules, a dehydration condensation agent and a catalyst, reacting under the protection of inert gas, and filtering and recovering after the reaction is finished to obtain S-PS-EDTA resin; mixing glacial acetic acid, absolute ethyl alcohol and S-PS (at) EDTA resin for reaction, and filtering and collecting liquid after the reaction is finished; and rectifying the collected liquid to obtain the product. According to the method provided by the invention, metal impurities can be chelated in the synthesis process, and the electronic-grade ethyl acetate with high purity and low impurity content is produced.

The invention discloses a starch-based full-biodegradable mulching film capable of being rapidly degraded and a preparation method of the starch-based full-biodegradable mulching film, and belongs to the technical field of degradable materials.The preparation method comprises the steps of tea polyphenol calcium salt preparation, filler preparation, thermal plasticization and film preparation. The preparation of the filler comprises the following steps: adding silicon dioxide into a polyacrylic acid aqueous solution, stirring and centrifuging at room temperature, taking a precipitate, adding the precipitate into a polyvinylpyrrolidone aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, adding the precipitate into the polyacrylic acid aqueous solution, adjusting the pH value to 3-3.5, stirring and centrifuging at room temperature, taking the precipitate, and freeze-drying to obtain the filler. The starch-based full-biodegradable mulching film prepared by the preparation method disclosed by the invention is good in processability, waterproofness and heat resistance and high in mechanical strength, the problem of phase separation does not occur in preparation, the problem of plasticizer precipitation does not easily occur in long-term use, and rapid degradation can be realized.

The invention discloses a dynamic borate bond-based self-healing polyacrylic acid binder and a preparation method thereof. The dynamic borate bond-based self-healing polyacrylic acid binder comprises a polymer main chain and a dynamic cross-linking agent, the dynamic cross-linking agent is a polyol compound containing at least two pairs of ortho-hydroxyl groups; the polymer main chain is formed by copolymerizing the following monomers: an acrylic structural monomer, the molar fraction of which accounts for 85-94% of the total monomer; a functional monomer containing a boric acid group, wherein the molar fraction of the functional monomer accounts for 3-8% of the total monomer; the mole fraction of the flexible monomer containing the acrylate group accounts for 3-8% of the total monomer. Various stresses generated by different negative electrode materials in circulation can be effectively adapted and buffered through a network formed by dynamic boric acid ester bonds and reversible fracture and combination of the boric acid ester bonds, so that the service life of the battery is generally prolonged, the working temperature range of the battery can be remarkably widened, the low-temperature discharge capacity can be remarkably increased, and the high-temperature cycle life can be prolonged.

The invention provides a polyacrylic acid inverse emulsion thickener and a preparation method thereof. The polyacrylic inverse emulsion thickener is prepared from the following components in parts by mass: 1 to 10 parts of modified attapulgite, 0.1 to 5 parts of hyperbranched acrylate, 30 to 60 parts of acrylic acid, 1 to 5 parts of a hydrophobic long-chain acrylate monomer, 5 to 20 parts of solvent oil, 0.5 to 5 parts of an emulsifier, 0.01 to 1 part of an initiator and 0.5 to 2.5 parts of a phase inversion agent. The preparation method comprises the following steps: firstly, introducing an isocyanate chain segment and a double-bond active group to the surface of acid-activated attapulgite to improve dispersity and reaction activity; then trimethylolpropane is used as a core, hyperbranched acrylate with multiple double bonds and a hyperbranched structure is constructed, and then the polyacrylic acid inverse emulsion thickener is prepared through an inverse emulsion method. Through the synergistic effect of the hyperbranched acrylate, the modified attapulgite and the hydrophobic long-chain monomer, the thickening performance, the electrolyte resistance and the long-term stability are remarkably improved.

The invention discloses a preparation method of a metal organic framework modified fluorine-free super-amphiphobic coating, and belongs to the technical field of super-amphiphobic coatings. According to the technical scheme, the method comprises the steps of preparation and modification of a metal organic framework and formation of a fluoride-free super-amphiphobic coating. Adding a metal oxide and nano silicon dioxide particles into a polyacrylic acid solution to form spherical particles; enabling the spherical particles to react with imidazole ligands to obtain metal organic framework particles with porous spherical structures, and wrapping nano silicon dioxide particles in the metal organic framework particles; modifying the metal organic framework particles by using a silane coupling agent; the preparation method comprises the following steps: firstly, attaching modified metal organic framework particles to the surface of a metal matrix, then attaching fluorine-free alkyl silane to the surface of the metal matrix, and heating and curing to obtain the fluorine-free super-amphiphobic coating. The fluorine-free super-amphiphobic coating is applied to the aspect of a metal surface super-amphiphobic coating, and the problems that an existing fluorine-free super-amphiphobic coating is poor in oleophobic and hydrophobic performance and poor in durability are solved.

The invention discloses a preparation method and application of a ceramic glaze layer protecting and repairing material, and belongs to the technical field of cultural relic protection. The preparation method comprises preparation of a core-shell self-repairing nanocapsule, and the preparation of the core-shell self-repairing nanocapsule comprises the following steps: reacting a calcium chloride solution with a sodium hydroxide solution, then adding sodium polyacrylate and nano ZnO, and carrying out dispersion, centrifugation, washing and other operations to prepare the nano Ca (OH) 2-ZnO composite material. The nano Ca (OH) 2-ZnO composite material of the core-shell self-repairing nanocapsule can be rapidly released through the 3.5 nm aperture of the mesoporous SiO2 shell, glaze layer cracks are physically filled and react with CO2 in air to generate CaCO3 crystals, crack plugging is achieved, meanwhile, dynamic disulfide bonds of a PU layer are broken and recombined under stress stimulation, a crack interface is repaired through chemical bonding, and the performance of the core-shell self-repairing nanocapsule is improved. The 24-hour crack repair rate is greater than or equal to 96%, and the limitation of'one-time repair 'of a traditional material is solved.

The invention discloses a modified thermal insulation coating and a preparation method and application thereof, and belongs to the field of building energy-saving materials. One modified compound is a thermo-sensitive polyelectrolyte layer-by-layer self-assembled alumina microsphere formed by alternately depositing polyethyleneimine and polyacrylic acid through electrostatic interaction, and the polyelectrolyte layer can dynamically swell or shrink along with the temperature to adjust the heat conductivity coefficient; and the other is magnesium silicate nanofiber coated with silicon dioxide and then grafted with fluorosilane, the hydrophobicity is improved by utilizing the low surface energy of the fluorosilane, and meanwhile, the binding force with a polymer interface is enhanced. The coating further comprises fumed silica, a dispersing agent, a defoaming agent and other auxiliaries. The preparation method comprises the following steps: sequentially adding the components into a high-speed dispersion machine, mixing, adjusting the viscosity, filtering and packaging. The coating has the advantages of intelligent temperature-sensitive adjustment, low heat conductivity, strong adhesion and weather resistance; the material is suitable for long-acting heat preservation in the fields of buildings, industrial equipment and cold chains.

The invention relates to the technical field of temporary plugging agents, and discloses a water-soluble temporary plugging agent for oil well fracturing and a preparation method thereof. According to the prepared water-soluble temporary plugging agent, sodium lignin sulfonate / graphene oxide serves as a core, then the surface of the core layer is coated with a polyacrylic acid-polyacrylamide copolymer to form a first shell layer, and then the surface of the first shell layer is coated with acrylate modified chitosan to form a second shell layer; the temporary plugging agent is applied to oil well fracturing, not only has excellent plugging performance, dissolving performance and anti-shearing performance, but also can improve the transportation capacity of the temporary plugging agent in the oil well fracturing process.

The invention belongs to the technical field of biomedical materials, and particularly relates to preparation of a hydrogel ultrasonic coupling patch for long-term stable continuous monitoring. According to the patch, an interpenetrating double-network structure system is formed by an alginate component and a polyacrylic acid component through intermolecular interaction, and the patch has excellent adhesion performance and mechanical performance. Compared with the prior art, by optimizing the components and the preparation process, the obtained hydrogel patch has the following advantages that the excellent acoustic impedance matching characteristic is achieved, and high-fidelity transmission of ultrasonic signals is ensured; the tissue adhesion is strong, and long-term stable attachment can be realized; good mechanical stability and durability are achieved, and the method is suitable for continuous monitoring application. The product effectively solves the technical problems that the traditional liquid coupling agent is easy to lose, the solid coupling patch is insufficient in adhesion and the like, and has important application value in the fields of medical ultrasonic diagnosis and long-term monitoring.

The invention provides a diaphragm and a preparation method thereof, and a lithium ion battery, the diaphragm comprises a base membrane, a composite ceramic coating and an interface layer, the composite ceramic coating contains inorganic ceramic particles and organic microcapsule particles, the organic microcapsule particles comprise a core material with a melting point range of 55-65 DEG C and a polymer shell coating the surface of the core material, and the polymer shell is coated on the surface of the core material. The polymer shell is selected from at least one of polyurethane, polyurea, polyamide and polycarbonate, the interface layer is formed by depositing an interface modification polymer on the surface of the composite ceramic coating, and the interface modification polymer is selected from at least one of polycatechol derivatives, polyaniline, polyvinyl pyridine, polyacrylic acid and polyacrylamide. The core material in the organic microcapsule particles is melted when heated to trigger hole closing at the initial stage of thermal runaway at 60-80 DEG C, the hole closing rate can reach 92%, the hole closing response time is shortened by 30%, and the porous structure of the interface layer can enhance the liquid absorption rate.

The invention relates to the technical field of lithium batteries, in particular to a preparation method of a high-temperature-resistant lithium battery cell. The invention discloses a preparation method of a high-temperature-resistant lithium battery cell, which is characterized in that through full-chain synergy of modification of positive and negative electrode materials, electrolyte optimization and structural design, a positive electrode adopts nickel cobalt lithium aluminate with a core-shell structure, and a metal organic framework coordination layer, polyaniline-polyacrylic acid multilayer coating and foam aluminum foil 3D printing coating are combined. The negative electrode takes silicon-carbon core-shell particles as a substrate, and breaks through the expansion bottleneck of a silicon-based negative electrode through metal organic framework confinement coating, polyaniline-polyacrylic acid cross-linked network modification and foam copper foil functionalization. The electrolyte adopts a film-forming additive and lithium difluorophosphate to form a stable SEI film, and internal resistance increase at high temperature is inhibited. The aramid fiber coating diaphragm and the aluminum alloy shell are matched, so that the thermal stability of the battery cell is remarkably improved, the battery cell can stably work in a wide temperature range environment, high energy density and long cycle life are comprehensively realized, and key support is provided for a long-endurance and high-safety battery.

The invention relates to the technical field of lithium ion batteries, and discloses a preparation method of silicon-carbon negative electrode slurry, the silicon-carbon negative electrode slurry and a lithium ion battery. The silicon-carbon negative electrode slurry comprises the following components: a silicon-based material, a graphite material, a carbon black conductive agent, a single-walled carbon nanotube conductive slurry, a sodium carboxymethyl cellulose binder, a polyacrylic acid binder, a styrene butadiene rubber binder, N-methyl pyrrolidone and deionized water. The silicon-carbon negative electrode slurry is prepared by adopting a dry process and a method of adding the binder step by step, so that the uniformity of the silicon-carbon negative electrode slurry is ensured, the expansion of the silicon-carbon negative electrode material is inhibited, and the cycle performance of the prepared lithium ion battery is finally improved. The silicon-based negative electrode paste has the following beneficial effects that the prepared silicon-based negative electrode paste is good in stability, and the single-walled carbon nanotube conductive paste, the sodium carboxymethyl cellulose binder, the polyacrylic acid binder and the styrene butadiene rubber binder form a multi-stage synergistic effect through complementary conductive, binding, dispersing and mechanical properties.

The invention discloses a high-salt-resistance composite cleanup additive and a preparation method thereof, and relates to the technical field of oilfield chemical additives. The invention discloses a high-salt-resistance composite discharge aiding agent. The cleaning agent is prepared from the following raw materials in parts by weight: 10 to 20 parts of modified sodium dodecyl benzene sulfonate, 5 to 10 parts of cocamidopropyl betaine, 8 to 15 parts of polyoxyethylene ether, 2 to 5 parts of nano silicon dioxide, 3 to 8 parts of sodium hexametaphosphate, 1 to 3 parts of low-molecular-weight polyacrylamide, 4 to 10 parts of modified polyacrylic acid-acrylamide copolymer, 15 to 30 parts of ethanol and 5 to 12 parts of ethylene glycol butyl ether. 2-6 parts of an imidazoline derivative, 3-7 parts of amino trimethylene phosphonic acid, 4-9 parts of sodium silicate and 2-5 parts of citric acid-sodium citrate. Aiming at development requirements of high-salt oil reservoirs, sodium dodecyl benzene sulfonate and the polyacrylic acid-acrylamide copolymer are modified, and raw materials are scientifically compounded, so that the cleanup additive shows high stability in a high-salt environment, can reduce interfacial tension and effectively regulate and control rock surface wettability, has foam stability and biodegradability, and can be widely applied to high-salt oil reservoirs. The method is suitable for high-salt complex oil reservoir operation scenes.

The invention relates to a super-flexible supercapacitor with a multi-layer seamless interlocking interface and a preparation method of the super-flexible supercapacitor. The super-flexible supercapacitor takes a carbon nanotube or a composite film thereof as an electrode; and polyanion gel (polyacrylamide / polyacrylic acid / poly (3-sulfonic acid propyl methyl acrylic acid potassium salt) and polycation gel (polyacrylamide / polyacrylic acid / poly (methacryloyloxyethyl trimethyl ammonium chloride) are used as the double-layer heterogeneous electrolyte. A covalent connection electrode / electrolyte interface is constructed through anchoring interface polymerization, and double-layer gel electrolyte with electrostatic attraction and mutual entanglement is constructed through in-situ polymerization, so that the super-flexible supercapacitor with a multi-layer seamless interlocking interface is realized. Compared with the prior art, the super capacitor has super-strong interface toughness and interface adhesion, can resist mechanical deformation including bending, folding, twisting, winding, extruding, knotting and the like, the capacity retention ratio is greater than 95% after the super capacitor is folded for hundreds of thousands of times, and the capacity retention ratio is greater than 89% after the super capacitor is circularly charged and discharged for hundreds of thousands of times.

The invention relates to the technical field of functional coatings of medical instruments, in particular to a temperature-sensitive response type sodium polyacrylate catheter leakage-proof coating, a preparation method and application thereof, and the coating is of a three-layer composite structure. And the bottom bonding layer adopts a polydopamine modified silane coupling agent system, contains silver nanoparticles, has the thickness of 5-15 microns, and ensures strong bonding and antibiosis of the substrate. The middle functional layer is a three-dimensional cross-linking degree gradient interpenetrating network polymer, is composed of a plurality of monomers and nano materials, and is 50-100 [mu] m in thickness, the cross-linking degree of the middle functional layer is gradually increased from inside to outside, gradient transition of mechanical properties is achieved, the outer protective layer is composed of a copolymer, is 3-8 [mu] m in thickness, and provides excellent anti-fouling and biocompatibility. The coating is endowed with strong adhesive force, gradient mechanical property and surface stability, the sodium polyacrylate component absorbs water and expands in urine to form sealing, and the expansion degree of the sodium polyacrylate component is regulated and controlled by the pH value and ionic strength of the urine.

The invention discloses thermal stress crack self-repairing high-strength concrete and a preparation method thereof. The high-strength concrete is prepared from the following raw materials: water, cement, mineral powder, fly ash, silica fume, sand, gravel, a polycarboxylic acid high-performance water reducing agent and a polyacrylic acid macromolecular modifier. The molecular structure of the polycarboxylic acid high-performance water reducing agent is short in main chain polymerization degree and long in side chain polymerization degree, and contains a large number of sulfonic acid active groups; the molecular structure of the polyacrylic acid high-molecular modifier is a highly branched three-dimensional network structure, and the polyacrylic acid high-molecular modifier contains a large number of carboxylic acid groups. Through mutual cooperation of the polyacrylic acid high-molecular modifier and the polycarboxylic acid high-performance water reducing agent which are of a three-dimensional network structure, the active mineral admixture can migrate to a certain extent along with free water, meanwhile, segregation and bleeding are avoided, the concrete micro-crack repairing rate can reach 95% or above, automatic repairing of concrete early-stage cracks is achieved, and the service life of the concrete early-stage cracks is prolonged. The later cracks are not further developed, and the durability and the bearing capacity of the concrete in an acid rain environment are improved.

The invention belongs to the field of preparation of soil conditioners, and particularly relates to a soil loosening and root promoting soil conditioner and a preparation method thereof. A polymer formed by vinyltriethoxysilane, polyacrylic acid and coumarin under the catalytic action of citric acid is mixed with porous powder obtained after crushing and nutrient organic matter, and freeze-drying is performed to obtain the soil-loosening improved fermentation substrate which can be slowly released in soil; polyaspartic acid and acetylchitosamine are cross-linked under the catalytic action of N-hydroxysuccinimide, root-promoting nutrition powder and auxiliary root-promoting components are mixed, and the obtained composite root-promoting agent can significantly promote the growth of plant root systems; a porous structure contained in the protective stability maintaining agent can provide a relatively stable microenvironment for effective components, and the soil loosening and root promoting agent is mixed with the soil loosening and improving fermentation substrate and the composite root promoting agent, so that the prepared soil loosening and root promoting soil conditioner is remarkable in soil loosening and root promoting effect, long-acting and stable, small in dosage, obvious in effect and stable in conditioning effect after being stored.

The invention discloses an insulating ceramic material, a preparation method thereof and application of the insulating ceramic material in a semiconductor heater. The insulating ceramic material comprises the following raw materials in parts by weight: 70-80 parts of aluminum oxide, 20-30 parts of boron nitride, 1-2 parts of magnesium oxide, 2-3 parts of quartz fiber powder and 4-6 parts of a modifier, the preparation method of the modifier comprises the following steps: reacting sodium alginate with 3, 3 '-dithiobis (4-aminobenzoic acid) to generate a first intermediate, reacting the first intermediate with polyacrylic acid to generate a second intermediate, and generating the modifier from the second intermediate under the action of aluminum chloride. The insulating ceramic material disclosed by the invention has excellent mechanical property, heat-conducting property and insulating property, and can remarkably improve the working performance of the semiconductor heater and prolong the service life of the semiconductor heater when being applied to the semiconductor heater.

The invention relates to the technical field of grouting materials, in particular to a dynamic water environment anti-dispersion micro-expansion grouting material and a preparation method thereof. A component A of the grouting material mainly comprises the following raw materials in parts by weight: 120-160 parts of a gel material with volcanic ash characteristics, 3-5 parts of a retarder, 10-15 parts of magnesium oxide, 0.5-2 parts of citric acid, 5-8 parts of aluminum sulfate, 1-2 parts of sodium fluoride, 0.5-1 part of gelatin and 70-100 parts of water; the component B mainly comprises the following raw materials in parts by weight: 4-8 parts of polyacrylamide, 5-10 parts of polyacrylic acid derivative salt, 1-2 parts of alcohol polysaccharide, 40-100 parts of water glass and 30-50 parts of water; magnesium oxide, aluminum sulfate, gelatin and sodium fluoride in the component A are prepared into core-shell anti-dispersion particles in advance; the problems that a traditional cement grouting material is poor in anti-scouring capacity and anti-dispersing capacity, low in retention rate, poor in stone durability and the like can be solved.

The invention provides polyacrylic acid-carboxylated chitosan interpenetrating network hydrophobic modified hydrogel as well as a preparation method and application thereof, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: mixing an acrylic monomer, a hydrophilic acrylate monomer, an etherification type acrylamide monomer, an allyl quaternary ammonium salt type hydrophobic monomer, a crosslinking monomer and water, then mixing with a chitosan compound, and adjusting the pH value to obtain a reaction solution; and mixing the reaction liquid and a photoinitiator, then carrying out polymerization reaction, and sequentially pre-freezing and freeze-drying the obtained polymer hydrogel. Through multiple synergistic effects of photo-initiated rapid polymerization, amphiphilic hydrophobic modification, etherification auxiliary crosslinking and a chitosan compound interpenetrating network, the structural stability, complexing efficiency, industrial applicability and heavy metal adsorption performance are comprehensively improved; the adsorption rate and capacity of the hydrogel disclosed by the invention are obviously superior to those of the existing similar polyacrylic acid-based or chitosan-based hydrogel.

The invention discloses a photovoltaic glass surface protection coating, a preparation method thereof and a preparation method of a coating in the technical field of coatings. The coating comprises the following components in parts by weight: 40-70 parts of a fluorocarbon resin blend, 1-10 parts of modified nano silicon dioxide powder, 0.1-1 part of a defoaming agent, 0.1-2 parts of a flatting agent, 0.1-2 parts of a curing agent and 10-80 parts of an organic solvent A, the fluorocarbon resin blend comprises polyurethane resin, soluble polytetrafluoroethylene resin, polyacrylic acid fluorine-containing resin and an organic solvent B, and the mass ratio of the polyurethane resin to the soluble polytetrafluoroethylene resin to the polyacrylic acid fluorine-containing resin to the organic solvent B is (100-300): (5-20): (10-50): (200-500). The super-hydrophobic self-cleaning glass has the advantages that the super-hydrophobic self-cleaning glass has super-hydrophobic self-cleaning performance and super-high light transmittance.

The invention discloses an intaglio printing ink composition and an intaglio printing method, and belongs to the technical field of ink preparation, the intaglio printing ink composition comprises the following components by weight: 40-80 parts of a polyacrylic acid emulsion and / or a polyacrylate emulsion, 5-15 parts of a hydroxyl acrylate monomer, 4-12 parts of a cross-linking agent, and 5-15 parts of a low alcohol solvent, 8-26 parts of pigment filler, 1-8 parts of an initiator and 3-10 parts of an auxiliary agent; the cross-linking agent is formed by taking pentaerythritol as a matrix, preparing pentaerythritol ester containing bromo-isobutyl through acylation reaction ester formation, and then polymerizing with tert-butyl acrylate through atom transfer radical polymerization reaction. By introducing the cross-linking agent, the curing speed of the resin binder is increased, and meanwhile, the adhesive force and the stability of the ink are improved.

The invention relates to the field of building materials, and particularly discloses an autoclaved aerated concrete block and a preparation process thereof. The autoclaved aerated concrete block is prepared from the following raw materials in parts by weight: 27 to 29 parts of coal gangue waste residues, 8.6 to 9.6 parts of concrete waste slurry, 7.2 to 8 parts of cement, 4.9 to 5.5 parts of quick lime, 1.5 to 1.9 parts of fly ash, 0.3 to 0.5 part of a water reducing agent, 0.2 to 0.4 part of a foaming agent, 34 to 37.5 parts of water, 2 to 2.5 parts of freeze-thaw resistant fibers and 1 to 1.5 parts of silanized rubber particles. The freeze-thaw resistant fibers are basalt fibers modified by chitosan / polyacrylic acid composite gel, and the chitosan / polyacrylic acid composite gel contains nano silicon dioxide. The aerated concrete block disclosed by the invention has relatively high compressive strength, meanwhile, the mass loss rate and the strength loss rate after freezing and thawing are reduced slightly, and the freezing and thawing cycle resistance is high.

The invention discloses a water-retention synergistic coated slow-release fertilizer and a preparation method thereof, and relates to the technical field of water-retention slow-release fertilizers. The coated slow-release fertilizer sequentially comprises a fertilizer core, an inhibitor layer, a slow-release coating layer, a bonding layer and a water-retaining slow-release layer from inside to outside. Wherein the inhibitor layer is composed of a urease / nitrification inhibitor, the slow-release coating layer is composed of organic polymer resin, the bonding layer is composed of an ethyl cellulose binder, and the water-retaining slow-release layer is composed of a modified water-retaining agent. The coated slow-release fertilizer prepared by the invention has good water retention performance, controlled release performance and salt resistance, is suitable for high-salt soil, and can obviously improve the nitrogen fertilizer utilization rate. Meanwhile, the combination of polyglutamic acid and sulfonic acid groups is used for modifying polyacrylic acid to prepare the modified water-retaining agent, so that a synergistic effect on improving the salt resistance of the coated slow-release fertilizer is achieved, the fertilizer efficiency can be improved, the loss is reduced, the soil environment is improved, and the water-retaining capacity of soil and the utilization rate of the fertilizer are improved.

The invention relates to the technical field of chemical production regulation and control, and discloses a system for thickening agent addition and on-line viscosity regulation and control in a post-regulation stage of a polyacrylic acid emulsion. The system comprises an overview construction module, a coefficient generation module, a rate optimization module and an execution control module. The overview construction module creates a production overview based on user settings, wherein the production overview comprises a reaction tank body connection relationship and thickening agent injection node parameters; the coefficient generation module is used for collecting real-time stirring state data and tank reaction data, respectively constructing a stirring state model and a tank reaction model, and outputting a stirring state coefficient and a tank reaction coefficient; the rate optimization module obtains the difference value between the current viscosity measurement value and the target viscosity, constructs a rate optimization model in combination with the tank reaction coefficient, the stirring state coefficient and the viscosity difference value, and outputs the target thickening agent injection rate; and the execution control module drives the thickening agent injection device according to the target thickening agent injection rate. According to the system, the accuracy and the stability of viscosity regulation and control are improved.

The invention relates to the field of lithium ion batteries, and particularly discloses an ultrathin high-heat-resistance and high-electrolyte-infiltration fiber-coated diaphragm and a preparation method of the ultrathin high-heat-resistance and high-electrolyte-infiltration fiber-coated diaphragm. An ultrathin fiber-coated diaphragm with high heat resistance and high electrolyte infiltration comprises a base membrane and a coating located on one side or two sides of the base membrane, the coating is formed by curing slurry, and the slurry comprises the following raw materials in parts by weight: 5-30 parts of a binder, 10-100 parts of an inorganic ceramic material, 1-100 parts of nanofibers, 0.1-5 parts of an auxiliary agent, 100-300 parts of a solvent and 0.1-5 parts of a dispersant; the glass transition temperature of the binder is higher than 150 DEG C; the binder is selected from at least one of a modified polyacrylic acid binder, a modified acrylamide binder, a modified polyacrylonitrile binder, a modified styrene butadiene rubber binder and a modified polyvinyl alcohol binder. The fiber-coated diaphragm provided by the invention has high heat resistance and high electrolyte wettability.