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1905 results about "Solid content" patented technology

Solids content. 1. The percentage of solids in a liquid mix, as in an adhesive. 2. In adhesives, coatings, or sealants, the percentage of non-volatile material.

Single-ion conductor polymer, ternary composite binder solution, high-solid-content sulfide electrolyte slurry and wet film forming method and application of high-solid-content sulfide electrolyte slurry

The invention discloses a single-ion conductor polymer, a ternary composite binder solution, high-solid-content sulfide electrolyte slurry and a wet film forming method and application thereof, and belongs to the technical field of all-solid-state lithium batteries. The key technical problems in the wet membrane preparation of the sulfide electrolyte are solved through an innovative solvent-binder synergistic system, and the method specifically comprises the steps that 1, through the synergistic effect of a non-polar solvent and a weak-polar solvent, low-viscosity coating of high-solid-content slurry is achieved while the chemical stability of the sulfide electrolyte is guaranteed; 2, a poly (lithium styrenesulfonate-butyl acrylate), styrene butadiene rubber and polyisobutene ternary composite binder is designed, a lithium ion transmission channel is provided through a lithium sulfonate group, a benzene ring structure in the styrene butadiene rubber enhances the mechanical strength, long-chain alkane in the polyisobutene improves the interface adhesive force, and the mechanical strength is improved; the three components cooperate to realize balance of mechanical and electrochemical properties of the electrolyte membrane, so that the prepared electrolyte membrane has low porosity, high ionic conductivity and mechanical strength.
Owner:SHANGHAI FIRM LITHIUM NEW ENERGY TECH CO LTD

Diaphragm adhesive composition, diaphragm and lithium ion battery

The invention provides a diaphragm adhesive composition, a diaphragm and a lithium ion battery, the solid content of the diaphragm adhesive composition is 10-40wt%, and when the solid content of the diaphragm adhesive composition is diluted to 5wt%, the surface tension of a diluent is not less than 28mN / m; the diaphragm adhesive composition comprises polymer particles A and a polymer adhesive B, wherein the solid mass ratio of the polymer particles A to the polymer adhesive B is 100: (3-30); the particle size of the polymer particles A is 0.2-10 [mu] m, and the glass transition temperature of the polymer particles A is 30-90 DEG C; and the polymer adhesive B is a water-based emulsion type adhesive, the particle size of polymer particles contained in the polymer adhesive B is 0.1-1 mu m, and the glass transition temperature of the polymer adhesive B is-50-20 DEG C. The diaphragm adhesive composition disclosed by the invention is not easy to spread on a base material, can prevent an adhesive glue solution from being quickly diffused on the surface of a diaphragm, forms controllable, uniform-size and uniformly-distributed adhesive coating points on the surface of the base material, and has small influence on the air permeability of the diaphragm.
Owner:SHENZHEN HAODYNE TECH CO LTD

Preparation method of low-dielectric polyimide porous material

PendingCN120424405APolymer sciencePtru catalyst
The invention relates to a preparation method of a porous polyimide low-dielectric material. The method comprises the following specific steps: preparing a polyamide acid solution with a certain solid content under an ice-water bath condition; after the solution is recovered to normal temperature, adding a certain amount of sodium alginate, and after the solution is homogenized, adding a catalyst and a dehydrating agent for chemical imidization; the method comprises the following steps: coating a substrate medium with a solution after a certain time of reaction, standing in air for a certain time, sequentially and respectively placing the substrate medium in ethanol and a hot water bath for replacement for a certain time, airing at normal temperature, and transferring to a high-temperature oven for gradient cyclization to realize complete imidization. According to the method, conditions are mild and easy to control, and the low-dielectric film material which is flat in appearance and ordered in structure is prepared only through a normal-pressure drying method.
Owner:NANJING TECH UNIV

Bionic Al / SiC composite material with three-dimensional network multilevel structure and preparation method of bionic Al / SiC composite material

PendingCN121248321ACeramicwareFreeze-dryingFreeze-casting
The invention relates to a bionic Al / SiC composite material with a three-dimensional network multilevel structure and a preparation method of the bionic Al / SiC composite material, and belongs to the technical field of new material preparation. According to the method, through the collaborative process of freeze casting and organic foam impregnation, the problem that in the prior art, the multilevel aperture and the complex network structure are difficult to cooperatively regulate and control is solved. The preparation method comprises the following specific steps: preparing tert-butyl alcohol-based ceramic slurry, impregnating the slurry with polyurethane foam, performing freeze casting molding, removing a solvent through freeze drying, performing high-temperature sintering to form SiC ceramic with a three-dimensional reticular hierarchical pore structure, and finally preparing the Al / SiC composite material through a vacuum pressure infiltration process. Wherein a sintering aid is added into the slurry, so that the sintering temperature is obviously reduced; the specification (40-60 ppi) of polyurethane foam, the solid phase content (20-30 vol.%) of slurry, the freezing speed (0-90 DEG C) and the content (5-20 wt.%) of a sintering aid are regulated and controlled. And the cross-scale collaborative design of micron-scale directional holes and millimeter-scale mesh holes is realized. The Al / SiC composite material prepared by the invention has the advantages that the compressive strength, fracture toughness and other properties are obviously higher than those of the traditional single-aperture porous ceramic, and the Al / SiC composite material is suitable for the fields of manufacturing and energy absorption of precise instruments, electronic packaging and optical devices.
Owner:JILIN JIANZHU UNIVERSITY

Preparation method of surface modified nano calcium carbonate for battery diaphragm coating

The invention relates to the technical field of nano materials, and particularly discloses a preparation method of surface modified nano calcium carbonate for a battery diaphragm coating. According to the method, the technical paths of microemulsion confinement crystal form regulation and control, gradient surface modification and boehmite compounding and porosity regulation and control are fused, and the functional nano calcium carbonate adaptive to the battery diaphragm coating is prepared. According to the technical scheme, limestone is used as a raw material, after calcination and digestion, the particle size of nano calcium carbonate is controlled through microemulsion carbonization (a cyclohexane-span 80-n-butyl alcohol system); a silane coupling agent KH560-KH570 is adopted for gradient modification to introduce an electrophilic functional group, boehmite is compounded to form a composite coating, and the porosity is regulated and controlled by adjusting the solid content in coating slurry and the coating speed. The method is stable in process and high in compatibility, and meets the requirements of diaphragm coatings of lithium ion batteries and solid-state batteries.
Owner:ZHEJIANG UNIV +1

High-loading MIL-101 (Fe) / PIM-1 mixed matrix membrane and preparation method thereof

The invention discloses a high-solid-content MIL-101 (Fe) / PIM-1 mixed matrix membrane and a preparation method thereof, and belongs to the technical field of gas separation membranes. The preparation method comprises the following steps: firstly, dissolving an iron source in a PIM-1 polymer solution to form a homogeneous membrane casting solution; forming the obtained membrane casting solution, and removing the solvent to obtain a PIM-1 / Fe (II) composite substrate containing Fe (III); then, the substrate is alternately immersed in a terephthalic acid methanol solution and a ferric salt methanol solution, and MIL-101 (Fe) is generated in the polymer matrix through in-situ limited crystallization by layer-by-layer limited crystallization. According to the method, the problem of interfacial compatibility between the MOF filler and the polymer matrix is effectively solved, and high loading capacity (up to 52.9 wt.%) of MIL-101 (Fe) is realized without agglomeration. Meanwhile, the membrane has excellent COplasticizing resistance and long-term operation stability, and has a wide application prospect in the fields of carbon capture and the like.
Owner:INST OF LASER MFG HENAN ACAD OF SCI +1

Coating pulse atomization system

The invention relates to the technical field of spraying treatment, and discloses a coating pulse atomization system which comprises a power part used for pressurizing and conveying a coating into a pipeline and maintaining the coating in the pipeline at a set pressure; the atomizing and spraying part is used for atomizing and spraying the coating in the pipeline and intermittently spraying the coating to the workpiece; and the coating heating part is arranged between the atomizing and spraying part and the power part and is used for heating the coating and keeping the temperature of the coating reaching the atomizing and spraying part at a set temperature. The high-solid-content coating can be atomized without using air, the atomization stroke is shortened, and the equipment size is reduced; when the high-solid-content coating is atomized, a solvent does not need to be used, zero VOC emission is achieved, a sprayed workpiece does not need to wait for solvent volatilization, and the drying time is shortened; in the atomization spraying process, the atomization dispersity is low, the coating utilization rate is increased, the spraying mode reduces the over-spraying phenomenon of the coating, and the time needed for spraying the coating on the workpiece is shortened.
Owner:ZHEJIANG ASUS PACKAGING TECHNOLOGY CO LTD +1

Rapid solid content detection device

The invention discloses a rapid solid content detection device which is characterized in that a mounting plate is fixedly arranged on an outer supporting shell, a telescopic rod is arranged on the mounting plate, a movable shaft barrel is arranged on the telescopic rod, and an extrusion plate is fixedly arranged at one end, far away from the telescopic rod, of the movable shaft barrel; the stirring mechanism is telescopically and rotatably arranged in the moving shaft barrel in a penetrating manner, and the driving assembly is arranged on the stirring mechanism and can drive the stirring mechanism to rotate; the first rack and the limiting block are slidably arranged on the mounting plate, and the limiting block can limit the position of the first rack; the driven mechanism is arranged on the stirring mechanism, the pushing mechanism is telescopically and fixedly arranged in the movable shaft barrel, and the first rack can drive the driven mechanism to rotate in one direction through rising of the movable shaft barrel, so that the pushing mechanism extends to extrude the stirring mechanism, and the stirring mechanism extends. According to the rapid solid content detection device, the stirring mechanism can be folded when the sewage is extruded, and the stirring mechanism extends out when the stirring mechanism is lifted, so that more sewage can be extruded.
Owner:JIANGSU XUNCHUANG TECH CO LTD

Anticorrosive coating composition

This anticorrosive coating composition comprises a main agent (I) and a curing agent (II), wherein: the main agent (I) contains an epoxy resin (a); the epoxy resin (a) contains at least one of a bisphenol A epoxy resin (a-11) and a novolac epoxy resin (a-12) each having a weight average molecular weight of 6,000-12,000; the curing agent (II) contains a polyamine (b) and an alkylphenol (c); the polyamine (b) contains an alicyclic polyamine (b-1) having a cyclic aliphatic hydrocarbon group to which an amino group is bonded and contains a non-alicyclic polyamine (b-2) having no cyclic aliphatic hydrocarbon group to which an amino group is bonded; at least one of the main agent (I) and the curing agent (II) includes a vinyl-based defoaming agent (d) that has a constituent unit derived from at least one monomer selected from the group consisting of alkyl (meth)acrylates, alkyl vinyl ethers, and olefins and that has a number average molecular weight of 30,000-100,000 or 300,000-2,000,000; the content of the alicyclic polyamine (b-1) is 30%-80% by mass of the solid content of the curing agent (II); the content of the non-alicyclic polyamine (b-2) is 2%-45% by mass of the solid content of the curing agent (II); the content of the alkylphenol (c) is 5%-60% by mass of the solid content of the curing agent (II); and the content of the vinyl-based defoaming agent (d) is 0.005-3 parts by mass with respect to 100 parts by mass of the anticorrosive coating composition.
Owner:NIPPON PAINT CO LTD

Low-viscosity high-dispersity aluminum oxide slurry and preparation method thereof

The invention belongs to the field of functional composite materials, and particularly relates to low-viscosity and high-dispersity aluminum oxide slurry and a preparation method thereof.The low-viscosity and high-dispersity aluminum oxide slurry is prepared from a newly-designed phosphono-carboxyl block copolymer and biquaternary ammonium salt polyether silane as composite modifiers; and efficient anchoring and stable dispersion of the surfaces of alumina particles are realized through the synergistic effect of molecular structures. The phosphono-carboxyl block copolymer is prepared through controllable polymerization and deprotection reaction, and strong chemical bonding is formed between a phosphono group and the surface of aluminum oxide; the biquaternary ammonium salt polyether silane is subjected to click chemical synthesis, and electrostatic adsorption of quaternary ammonium salt and the steric hindrance effect of a polyether chain are combined. When the slurry is prepared, the two modifiers are sequentially added into water, the aluminum oxide powder is added after the pH value is adjusted, finally, the isobutylene maleic anhydride copolymer and the defoaming agent are introduced, and the slurry is obtained through vacuum defoaming and filtering. The slurry prepared by the method has the characteristics of high solid content, low viscosity and good dispersion stability.
Owner:CHONGQING HOUSHENG NEW MATERIAL TECHNOLOGY CO LTD

Preparation method of concrete pavement curing agent

PendingCN120423894APolymer scienceEmulsion
The invention provides a preparation method of a concrete pavement curing agent, and belongs to the technical field of concrete. The preparation method comprises the following steps: preparing a modified beta-cyclodextrin solution, preparing a polyurethane emulsion 1, preparing a polyurethane emulsion 2, and mixing. The mixing method comprises the following steps: adding potash water glass into deionized water, sequentially adding a water-based stabilizer, a polyurethane emulsion 1, a polyurethane emulsion 2 and decyl glucoside in a stirring state, and then transferring the mixture into an ultrasonic oscillator for ultrasonic dispersion for 25-35 minutes to obtain the concrete pavement curing agent. The effective water retention rate of the curing agent is 92-96%, the compressive strength ratio is 95-97% in 7d and 98-99% in 28d, the abrasion loss is 0.7-1.1 kg / m < 2 >, the solid content is 27-30%, and the drying time is 1.1-1.4 h.
Owner:SHANDONG HUAWEI ENG SUPERVISION CONSULTING CO LTD

Ordered mesoporous phenolic resin spheres, ordered mesoporous carbon spheres, and preparation methods and applications of ordered mesoporous phenolic resin spheres and ordered mesoporous carbon spheres

The invention relates to the technical field of mesoporous materials, and discloses an ordered mesoporous phenolic resin sphere, an ordered mesoporous carbon sphere and a preparation method and application thereof. The ordered mesoporous phenolic resin sphere has a uniform spherical morphology and a highly ordered mesoporous structure, the particle size of the ordered mesoporous phenolic resin sphere is 40-2000nm, and the aperture of the ordered mesoporous phenolic resin sphere is 3-10nm; the solid content reaches 100g / L. The preparation method comprises the following steps: dissolving a surfactant in a composite solvent, and uniformly stirring to obtain a precursor solution; dissolving a phenolic precursor and formaldehyde in the precursor solution, and slowly adding a pore-enlarging agent to obtain a uniform emulsion; adding a catalyst into the emulsion to carry out polymerization reaction; and after the reaction, collecting a solid phase, and carrying out heat treatment in an inert atmosphere to obtain the ordered mesoporous phenolic resin spheres. The ordered mesoporous phenolic resin spheres and the ordered mesoporous carbon spheres have uniform spherical structures, highly ordered mesoporous structures and high solid content; the preparation method is simple in process, high in expansibility and beneficial to large-scale production.
Owner:FUDAN UNIVERSITY

Epoxy resin modified emulsified asphalt micro-surfacing mixture and preparation method thereof

The invention discloses an epoxy resin modified emulsified asphalt micro-surfacing mixture and a preparation method thereof.The preparation method comprises the steps that matrix asphalt is subjected to gradient heating to 75-90 DEG C, nano silicon dioxide is added, stirring and shearing are conducted, and activated matrix asphalt is obtained; preparing a water-borne epoxy resin emulsion with the solid content of 45-50%, and controlling the mass ratio of epoxy resin to an emulsifier to be (8-10): 1 to form a stable dispersion system with the particle size of less than or equal to 1 mu m; preheating the mineral aggregate, adding the activated matrix asphalt while stirring, and continuing stirring; adding the water-borne epoxy resin emulsion, and continuously stirring; adding a vinylamine curing agent, continuously stirring to ensure that the curing agent is uniformly dispersed and avoid partial incomplete reaction, finally adding cement and water, and continuously stirring to form a uniform micro-surfacing mixture. The pavement performance such as high-temperature stability, low-temperature crack resistance and the like is remarkably improved through raw material system upgrading and process innovation, VOCs emission is greatly reduced, and green and environment-friendly effects are achieved.
Owner:CHANGDE YILIAN NEW MATERIAL CO LTD

Online solid content detection system and method for slurry

The invention relates to an online solid content detection system and method for slurry. The device comprises a main pipeline, a bypass line; the first three-way valve is respectively connected with one end of the bypass pipeline, the main pipeline and the cleaning liquid pipeline; the second three-way valve is respectively connected with the other end of the bypass pipeline, the main pipeline and the waste liquid pipeline; the on-line densimeter is arranged on the bypass pipeline and is used for collecting the density value of the slurry in real time; the fourth control valve and the fifth control valve are arranged on the bypass pipeline and located on the two sides of the online densimeter respectively, and the fifth control valve is connected with the second three-way valve; the conveying pump is connected to the first three-way valve; the three-way pipe is arranged on the bypass pipeline and connected with the fourth control valve, the conveying pump and the third drain valve; the third drain valve is used for discharging residual cleaning waste liquid in the bypass pipeline after the cleaning process is finished; and the sixth control valve is arranged on the cleaning liquid pipeline and is used for controlling the on-off of the cleaning liquid. According to the invention, the detection accuracy and speed are improved.
Owner:WUXI RICH INTELLIGENT EQUIP CO LTD

Method and apparatus for manufacturing electrode for energy storage device

[Problem] To provide a method and an apparatus for manufacturing an electrode for an energy storage device whereby a more compact electrode coating apparatus, an improvement in electrode production speed, and a reduction in running costs can be achieved. [Solution] Provided is a method for manufacturing an electrode for an energy storage device, the method comprising: a step A for applying a slurry to a rolled current collector conveyed in one direction at a prescribed speed; a step B for heating the applied slurry to a temperature not below 30°C and not above the boiling point of a dispersant in the slurry; and a step C for irradiating the slurry applied to the current collector with laser light of a wavelength equal to or greater than 435 nm and less than 550 nm, or of a wavelength equal to or greater than 890 nm and less than 1100 nm, from a laser irradiation unit, wherein the slurry contains 0.1% by mass or more of carbon relative to the solid content of the slurry.
Owner:ATTACCATO LIMITED LIABILITY COMPANY +1

Secondary battery and preparation method thereof

The invention provides a secondary battery, which comprises a pole piece, a diaphragm and an electrolyte, the pole piece comprises a current collector and an active material layer arranged on at least one side of the current collector, and the active material layer comprises an active material, a conductive agent and a binder; the value range of the effective ion migration rate of the pole piece is 0.02 to 0.5; according to the invention, the pole piece prepared under high solid content is subjected to freeze drying or supercritical drying, so that the solvent in the pole piece leaves the pole piece, and meanwhile, the adhesive does not migrate along with the solvent, and the uniform distribution of the adhesive in the pole piece is maintained; meanwhile, under the condition that the electrode plate has higher surface density and higher compaction density, distribution of a pore structure in the electrode plate is maintained, due to the special process effect of freeze drying or supercritical drying, the high pore structure of the electrode plate can be maintained, or pores in the electrode plate can be further improved through pore forming, the migration rate of ions in the electrode is increased, and the service life of the electrode plate is prolonged. Therefore, the battery has relatively high energy density and better electrochemical performance.
Owner:SHENZHEN MAOLUE TECH RES CO LTD

Preparation method of 3D printing ceramic slurry and ceramic shaping method

The invention provides a preparation method of 3D printing ceramic slurry and a ceramic shaping method, and the preparation method of the 3D printing ceramic slurry comprises the following steps: S1, loading nano-scale silicon dioxide on the surface of micro-nano-scale aluminum oxide to obtain nano-silicon dioxide modified aluminum oxide; s2, coating the surface of the nano silicon dioxide modified aluminum oxide with aluminum hydroxide to obtain modified aluminum oxide; and S3, ball-milling and mixing the modified aluminum oxide and a dispersing agent, and then mixing and stirring with a binder, an auxiliary agent and a solvent. The 3D printing ceramic slurry provided by the invention can realize high solid content, has good dispersibility and fluidity, is strong in stability, is not liable to cause problems of layering, precipitation and the like, the surface smoothness of extruded silk threads is high, and a prepared ceramic product is high in strength.
Owner:SHANGHAI UNIV OF ENG SCI

Insulating paste for photovoltaic BC battery and preparation method and application thereof

The invention belongs to the technical field of photovoltaic insulation paste, and provides insulation paste for a photovoltaic BC battery as well as a preparation method and application of the insulation paste. The insulating glue for the photovoltaic BC battery comprises a component A and a component B which are mixed according to the weight ratio of (10-40): 1, the component A comprises polyfunctionality acrylic resin (the solid content of the polyfunctionality acrylic resin is 80-100%, the molecular weight of the polyfunctionality acrylic resin is 20000-60000, and the hydroxyl value of the polyfunctionality acrylic resin is 50-120mgKOH / g), pigment, an ultraviolet absorber, a dispersing agent, a flatting agent, a defoaming agent and a coupling agent in specific parts by weight; and the component B comprises an isocyanate curing agent and a coupling agent in specific parts by weight. The insulating glue can be quickly cured, is low in curing temperature, does not cause warping of a battery piece, also has the advantages of cost and performance (high hardness, high volume resistivity, excellent insulating property, ultraviolet aging and yellowing resistance and excellent PID resistance), and is particularly suitable for being applied to a photovoltaic BC battery.
Owner:JIANGSU ZHONGLAI NEW MATERIAL TECH CO LTD

High-build waterborne epoxy heavy anti-corrosion coating and preparation method thereof

The invention discloses a high-build waterborne epoxy heavy anti-corrosion coating and a preparation method thereof. The coating is a water-based, double-component and room-temperature self-drying type product and is prepared from water-based epoxy resin, modified amine emulsion, castor oil polyglycidyl ether, pigment filler, anti-rust pigment, a cosolvent, water and a functional additive. Due to the adoption of a special amine curing system and an auxiliary material compatibility scheme, the obtained coating is high in solid content in volume, quick to dry, capable of realizing thick coating construction, resistant to chemicals, resistant to corrosion and capable of being attached to multiple base materials, and is a thick-paste water paint suitable for heavy-duty anticorrosion fields such as petrifaction, maritime work, energy, bridges and the like.
Owner:NANJING CHANGJIANG PAINT

Slurry pump experimental device

The invention relates to the technical field of slurry pumps, and particularly discloses a slurry pump experimental device, which comprises a pump body experimental unit, a slurry pump experimental unit and a slurry pump experimental unit, the slurry supply unit is located on the input side of the slurry pump and used for conveying slurry to the slurry pump; the slurry backflow unit is located on the output side of the slurry pump and used for recycling the slurry pumped out by the slurry pump and enabling the slurry to flow back to the slurry supply unit; solid particles are intercepted through the separation disc, the height of the separation disc is adjusted according to preset solid content parameters, and the states of slurry with different solid particle contents can be accurately simulated; the viscosity of the slurry can be quickly adjusted by utilizing the heating tank and the stirring piece in combination with preset viscosity parameters, so that the configuration of the slurry with different viscosities is realized; by adjusting the state of the slurry pumping piece, the slurry solid content simulation state and the slurry viscosity simulation state can be flexibly switched, so that the test requirements of the slurry pump under various simulation working conditions are met.
Owner:DONGYING DAOER IND & TRADE CO LTD

Modified spherical lithium iron phosphate with high compaction density as well as preparation method and application of modified spherical lithium iron phosphate

The invention discloses high-compaction-density modified spherical lithium iron phosphate and a preparation method and application thereof.The preparation method comprises the steps that a composite iron source precursor and modified phenolic resin are compounded to form a spherical inner core, and then the spherical inner core is coated with a lithium-phosphorus mixed layer to construct a core-shell structure; the modified spherical lithium iron phosphate with the characteristics of'spherical core-porous shell 'is prepared by introducing boron nitride nanosheets as a structure-directing agent and a doping source and combining a dynamic gradient sintering process, and the modified phenolic resin is obtained by grafting water-soluble phenolic resin and polyethylene glycol, and the solid content of the modified phenolic resin is greater than or equal to 50%. The modified lithium iron phosphate with the compaction density larger than or equal to 2.55 g / cm < 3 > and the capacity retention ratio larger than 92.0% after 1C circulation 2000 times is prepared, and the technical bottlenecks that doping is not uniform, morphology is out of control and the compaction density is low in a traditional process are solved.
Owner:HUBEI XINGFA CHEM GRP CO LTD

Waterborne epoxy zinc-aluminum coating and preparation method thereof

The invention relates to a waterborne epoxy zinc-aluminum coating and a preparation method thereof. The coating consists of a component A and a component B, wherein the component A comprises or consists of the following components in parts by weight: 25-30 parts of water-borne epoxy resin; 0.1 to 0.2 part of a defoaming agent; 2-4 parts of propylene glycol monomethyl ether; 5-8 parts of propylene glycol butyl ether; 1.5 to 2 parts of fumed silica; 0.2-0.4 part of a molecular sieve dewatering agent; 0.6 to 1 part of bentonite; 0.1 to 0.5 part of nano CeO2; and 55-60 parts of zinc-aluminum alloy powder. The component B comprises or consists of the following components in parts by weight: 65-70 parts of a curing agent; 25 to 30 parts of deionized water; 2-5 parts of an anti-flash-corrosion auxiliary agent; wherein the mass ratio of the component A to the component B is 6: 1. The solid content of the waterborne epoxy zinc-aluminum coating is gt; the VOC content is 65%, and the VOC content is lt; therefore, the environmental protection performance is greatly improved.
Owner:METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +1

Full-bio-based PHA (polyhydroxyalkanoate) liquid bioplastic emulsion and preparation method thereof

The invention discloses a full bio-based PHA (polyhydroxyalkanoate) liquid bioplastic emulsion and a preparation method thereof. The emulsion takes polyhydroxyalkanoate (PHA) as a matrix, alkyl polyglycoside, fermented glycolipid and a bio-based nonionic surfactant are compounded with pullulan, alginate or micro-nano cellulose to serve as a stable system, and plasticizers such as acetyl tributyl citrate and citric acid, phytic acid or tannic acid are added to serve as compacting agents. The solid content of the emulsion is 35-58%, the volume average particle size D50 is 0.12-0.90 [mu] m, the absolute value of Zeta potential is not less than 30 mV, and the content of volatile organic compounds (VOC) is not higher than 50 g / L; fluorine-containing organic matters are not artificially added, and the total organic fluorine is less than or equal to 100ppm. The overall bio-based carbon content of all organic components in the formula is not lower than 95% according to mass weighting calculation. The invention also provides application of the emulsion in the fields of paper barrier coatings, heat-sealing adhesives and non-woven fabric finishing.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +2

Preparation method of adsorption material for catalytic combustion of VOCs (Volatile Organic Compounds)

The invention discloses a preparation method of an adsorption material for catalytic combustion of VOCs, and belongs to the technical field of environment-friendly catalytic materials. The method comprises the following steps: mixing silica sol, kaolin and an HZSM-5 molecular sieve according to a mass ratio of 1: (0.6-0.8): (0.4-0.5), and pulping to form slurry with the solid content of 25%-40%; adding polyethylene glycol (the molecular weight is 300-600) which accounts for 1-5% of the mass of the slurry, and uniformly dispersing; dripping into an oil phase at the temperature of more than or equal to 70 DEG C through a 0.5-1 mm dropper to form a 1-2 mm gel bead; pre-drying for 2-4 hours at the temperature of 80-120 DEG C, heating to 600-750 DEG C at the speed of 3-5 DEG C / min, and roasting for 2-5 hours; and the roasted pellets, sodium metaaluminate, a guiding agent and water are subjected to dynamic crystallization according to the mass ratio of 1: (0.1-0.3): (0.05-0.15): (5-10), and finally metal is loaded. The sphericity of the carrier is gt under the synergistic effect of oil column forming and polyethylene glycol; the compressive strength is not less than 40 N; the kaolin enhances the mechanical performance, and the HZSM-5 constructs hierarchical pore channels (the pore volume is 0.3-0.5 cm / g, and the specific surface area is gt and 300 m / g), so that the VOCs adsorption capacity is improved.
Owner:QINGDAO HUICHENG PETROCHEM TECH

Paste and conductive film and their production methods

A paste that includes particles of a layered material in an ammonia aqueous solution. The particles include one or plural layers, the layers having a layer body represented by MmXn, wherein M is at least one metal of Group 3, 4, 5, 6, or 7, X is a carbon atom, a nitrogen atom, or a combination thereof, n is not less than 1 and not more than 4, and m is more than n but not more than 5, and a modifier or terminal T exists on a surface of the layer body, wherein T is at least one selected from the group consisting of a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom, and a hydrogen atom, wherein the paste has a viscosity of 1 Pa·s or more at a shear velocity of 1 / s when the paste has a solid content concentration of 1.0% by mass.
Owner:DREXEL UNIV +1

Coating material containing agilawood component as well as preparation method and application of coating material

The invention discloses a coating material containing an agilawood component and a preparation method and application thereof, and belongs to the technical field of coating materials, a coating is composed of agilawood powder, paprika powder, natural glutinous rice glue, agilawood hydrolat and water, diatomite or beeswax emulsion can be selectively added, the oil content of the agilawood powder is larger than or equal to 15%, linalool is larger than or equal to 1.2 mg / g, and the agilawood powder is subjected to airflow crushing treatment; the glutinous rice glue is prepared by hydrolyzing starch, and the solid content is 25-35%; agilawood hydrolat is extracted through steam distillation, the concentration of agilawood alcohol is larger than or equal to 0.8 mg / mL, during preparation, raw materials are mixed and then stirred for 10-20 min at the high speed of 2500-3500 r / min at the temperature of 20-40 DEG C to form a stable system, the VOC content of the coating is smaller than 10 g / L, the coating meets the GB18582-2020 standard, the escherichia coli inhibition rate and the staphylococcus aureus inhibition rate are 95% and 98% respectively, the initial aroma intensity is 8.5 min (10 min), the coating is kept for 7.2 min after 12 months, the adhesive force is 0 grade, the pencil hardness is 2-4 H, and the coating is suitable for being applied to the field of medical care. The coating has the advantages of no less than 5000 times of washing resistance, no less than 91% of performance retention rate after 500 hours of ultraviolet aging, and suitableness for coating wall surfaces, furniture and handicrafts, and has the characteristics of aromatic physical therapy, antibiosis and environmental protection.
Owner:NARDA AQUILARIA RES INST (HAINAN) CO LTD

Furnace lining structure and method capable of achieving furnace temperature control and waste heat utilization of molten salt chlorination furnace

The invention relates to the technical field of molten salt chlorination furnaces, in particular to a furnace lining structure and method capable of achieving furnace temperature control and waste heat utilization of a molten salt chlorination furnace, and the furnace lining structure sequentially comprises a metal furnace shell, a heat insulation basalt plate layer, an anthracene oil graphite sealing layer, a first refractory clay brick layer, a phosphate pouring material layer and a second refractory clay brick layer from outside to inside. And a corrosion-resistant metal conduit is pre-buried in the phosphate castable layer. According to the furnace lining structure and method capable of achieving furnace temperature control and waste heat utilization of the fused salt chlorination furnace, the corrosion-resistant metal guide pipe is pre-buried in the phosphate pouring material layer, coarse TiCl4 clear liquid is utilized to circularly absorb heat in the guide pipe, and linkage control of the temperature sensor and the flow adjusting valve is combined, so that the temperature in the fused salt chlorination furnace can be accurately adjusted in real time. And compared with a traditional cooling mode of back spraying of high-solid-content materials, the problem that the gas amount in the furnace is suddenly increased due to spraying evaporation is solved, and the stability of the negative pressure in the furnace is effectively guaranteed.
Owner:YUNNAN GUOTAI TITANIUM METAL CO LTD

Aqueous coating composition

This aqueous coating composition contains acrylic modified epoxy resin particles (A) having a glass transition temperature of 30°C or higher, acrylic resin particles (B) having a glass transition temperature of 30°C or lower, and an organic solvent (C). The composition includes, as solids content, 20-60 mass% of the acrylic modified epoxy resin particles (A) and 40-80 mass% of the acrylic resin particles (B) relative to the total solids content of the acrylic modified epoxy resin particles (A) and the acrylic resin particles (B). The weighted average boiling point of the organic solvent (C) is 200°C or lower.
Owner:KANSAI PAINT CO LTD

High-molecular compound preparation method and system

The invention relates to the technical field of high-molecular compound preparation, in particular to a high-molecular compound preparation method and system.The method comprises the steps that distilled water and boron nitride are added into a container containing silane monomers, stirring reaction is conducted for 3-5 h, and a hyperspectral image of a mixed solution in the container in the stirring reaction process is collected; the method comprises the following steps: acquiring spectral similarity factors of matched pixels in a hyperspectral image, judging the fullness degree of a stirring reaction according to the distribution characteristics of the spectral similarity factors of the pixels, completing the stirring reaction, mixing the prepared boron nitride modified organic silicon resin, silanol, polyester resin and a crosslinking catalyst, continuously reacting for 2-4 hours at 110-130 DEG C, adding an organic solvent, and uniformly stirring to obtain the boron nitride modified organic silicon resin. The solid content of the modified polyester resin is 62-66%. The invention aims to improve the performance and prolong the service life of the prepared modified polyester resin, and realizes the preparation method of the high-molecular compound.
Owner:NANTONG PROTO NEW MATERIAL TECH CO LTD

Resin composition, cured product, prepreg, metal foil-clad laminate, resin composite sheet, printed wiring board, and semiconductor device

Provided are a resin composition, a cured product, a prepreg, a metal foil-clad laminate, a resin composite sheet, a printed wiring board, and a semiconductor device. This resin composition comprises an elastomer (A), a thermosetting compound (B), a radical polymerization initiator (C), and a filling material (D), wherein: the elastomer (A) includes a polymer block (a1) containing a radically reactive group-containing styrene compound unit and a conjugated diene compound unit; the thermosetting compound (B) contains a resin (E) having at least two vinylbenzyl groups at the terminal thereof; the content of the filling material (D) is 1-300 parts by mass with respect to 100 parts by mass of the solid content of the resin; and the mass ratio ((A) / (E)) of the elastomer (A) to the resin (E) having at least two vinylbenzyl groups at the terminal thereof is 0.01-1.1.
Owner:MITSUBISHI GAS CHEM CO INC