Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

559results about How to "Good acid and alkali resistance" patented technology

Photo-curing silk screen pearly-luster ink applicable to different printing substrates and preparation method thereof

ActiveCN102634251AGood flexibility and abrasion and scratch resistanceGood acid and alkali resistanceInksSolventPrepolymer
The invention provides a photo-curing silk screen pearly-luster ink applicable to different printing substrates and a preparation method of the photo-curing silk screen pearly-luster ink. The ink is prepared from the following components in percentage by weight: 5-60% of polyurethane acrylate, 1-30% of acrylates pre-polymer, 1-20% of adhesive force accelerating resin capable of participating curing, 0-30% of monomer, 5-25% of pearly-luster pigment, 0-40% of a solvent and 2-15% of a light initiator. The photo-curing silk screen pearly-luster ink applicable to the different printing substrate disclosed by the invention can be suitable for the different printing substrates at the same time and comprises plastic substrates including paper, PET (Poly Ethylene Terephthalate), BOPP (Biaxially-oriented Polypropylene), PP (Propene Polymer), PE (Poly Ethylene) and the like, and metal substrates; an adhesive force between the photo-curing silk screen pearly-luster ink and the printed materials is good and the photo-curing silk screen pearly-luster ink has good flexibility and wear-resisting and scrape-resisting strength; the acid-resisting and alkali-resisting performance is excellent and the performance for resisting each type of solvent is good, so that the requirements on silk-screen printing can be met.
Owner:CHINA BANKNOTE INK +1

Method for preparing silicon dioxide coating type water aluminum-silver slurry

The invention discloses a preparation process of silica dioxide coated waterborne aluminum paste. The characteristics of the process are that self-assembling silica dioxide gel particle, conducting the electric potential regulation and control for the surface of aluminum powder in order to make the surface of aluminum powder positive, generating negative charged SiO2 gel particles through dripping silicon alkoxide to generate silicon alkoxide, wherein negative charged SiO2 gel particles are evenly compactly absorbed on the positive charged aluminum paste surface which is regulated and controlled by aluminum salt, therefore realizing the self-assemly of the SiO2 gel particle on the surface of aluminum powder, and making the surface of aluminum powder be coated with a layer of even compact and transparent silica dioxide film, and finally obtaining silica dioxide coated waterborne aluminum paste. The waterborne aluminum paste has the following characteristics of excellent dispersion in alcohol solvent and water solvent, wonderful properties of acid resistance and alkali resistance, and the particle diameter change of aluminum powder is smaller than 1 micron back and forth coating, and metal sense decrease is smaller 5%. The product of silica dioxide coated waterborne aluminum paste which is prepared can be used as an environment-friendly metallic pigment which can be extensively applied on environment-friendly waterborne pigment and waterborne ink.
Owner:CENT SOUTH UNIV

Environment protective polyurethanes hammer paint

The invention discloses an environmental-protection polyurethane hammer paint which is applied to wood surface decoration and protection and consists of a component A, a component B and a component C; when in use, the component A, the component B and the component C can be evenly mixed by the weight ratio that component A: component B: component C is equal to 1: 0.4 to 0.6: 0.5 to 0.6; wherein, the component A consists of: short oil alkyd resin, 40 to 60 parts; long oleoresin, 2 to 5 parts; dispersing agent, 0.2 to 0.5 part; anti-sedimentation agent, 0.4 to 0.9 part; propylene glycol ether acetate 3 to 6 part; divalent ester 1 to 3 parts; pigment, 0 to 30 parts; defoamers, 0.2 to 0.5 part; leveling agent, 0.2 to 0.7 part; non-floating-type aluminum paste, 1 to 5 parts; n-butyl acetate 5 to 15 parts, polydimethylsiloxane, 0.1 to 0.5 part; the component B consists of the following materials by weight ratio: HDI trimer poly isocyanate: HDI-TDI trimer: n-butyl acetate is equal to 2 to 4: 3 to 5: 1 to 4; the component C consists of the following materials by weight ratio: n-butyl acetate: propylene glycol methyl ether acetate is equal to 7 to 9: 1 to 3. The invention has the advantagesof: 1. good paint film solvent resistance and acid and alkaline resistance, bright color, clear texture, and good hammer effective; 2. high paint film hardness and wide application range, not only being applicable to wood surface, but also being applicable to metal surface decoration and protection; and 3. triphenyl-free, low VOC, and high solid content, and meeting the requirements on environmental protection.
Owner:GUANGDONG SANVO CHEM IND TECH

Method for preparing MOF (metal organic frameworks)-based magnetic nitrogen-doped carbon nano-tubes and application thereof

The invention discloses an MOF (metal organic frameworks)-based magnetic nitrogen-doped carbon nano-tube material, a method for preparing the same and application of the MOF-based magnetic nitrogen-doped carbon nano-tube material. The MOF-based magnetic nitrogen-doped carbon nano-tube material can be used as an adsorption material. MOF are calcined at the high temperatures to obtain the MOF-basedmagnetic nitrogen-doped carbon nano-tube material. Carbon nano-tubes with large quantities of free N elements are generated on the surfaces of the MOF-based magnetic nitrogen-doped carbon nano-tube material while the appearance of the MOF is reserved. The MOF-based magnetic nitrogen-doped carbon nano-tube material, the method and the application have the advantages that the MOF are used as templates for the MOF-based magnetic nitrogen-doped carbon nano-tube material which is a magnetic carbon material prepared by the aid of the method, and are directly calcined at the high temperatures to obtain the magnetic carbon material; the carbon material is high in environmental stability as compared with MOF adsorption materials, and pi-pi conjugation can be formed by the carbon material and targetobjects by the aid of strong conjugation surfaces of the carbon nano-tubes; the MOF-based magnetic nitrogen-doped carbon nano-tube material is extremely high in magnetism as compared with commercialcarbon nano-tubes, and target object detection procedures can be simplified by the aid of MSPE (magnetic solid-phase extraction) methods; processes for preparing the MOF-based magnetic nitrogen-dopedcarbon nano-tube material are simple, and the MOF-based magnetic nitrogen-doped carbon nano-tube material which is a magnetic nitrogen-doped carbon nano-material is high in magnetism and super-high inenvironmental stability, has large specific surface areas, can be specifically bound with the target objects and has an excellent application prospect in the field of detection on the content of microcystin in lake water and the like.
Owner:FUZHOU UNIV

High temperature resistant well-cementing spacer fluid and preparation method thereof

The invention relates to a high temperature resistant well-cementing spacer fluid and a preparation method thereof. The spacer fluid consists of: 100 parts by weight of fresh water, 2-8 parts by weight of a suspending agent, 2-10 parts by weight of a diluents, 25-400 parts by weight of a weighting agent, and 1-15 parts by weight of a flushing agent. Specifically, the suspending agent is composed of 100 parts by weight of OCMA bentonite, 2 parts by weight of hydroxypropyl guar gum and 8 parts by weight of xanthan gum; the diluent is composed of 100 parts by weight of sodium lignin sulfonate and 20 parts by weight of sulfonated tannin; the flushing agent consists of 40 parts by weight of fatty alcohol-polyoxyethylene ether, 40 parts by weight of triethanolamine oleate and 20 parts by weight of sodium tripolyphosphate; and the weighting material is barite. The spacer fluid has stable performance under 180DEG C high temperature condition, still has good rheological performance under the premise of ensuring the system good suspension stability, is compatible with conventional cement slurry and drilling fluid systems, improves the rheological properties of drilling fluid, enhances the displacement efficiency, and reinforces the cementation quality of a cement ring with a well cementation first interface and a second interface.
Owner:TIANJIN BO XING ENG SCI & TECH LIMITED COMPANY OF CNPC +2

Vanadium-titanium enamel glaze material, and preparation method thereof

ActiveCN104909567AGrain refinementImprove hydrogen storage performanceMagnetiteCobalt
The invention belongs to the technical field of enamel material, and specifically relates to a vanadium-titanium enamel glaze material, and a preparation method thereof. The preparation method is used for solving technical problems that cost of a conventional vanadium-titanium enamel glaze material is high, glossiness of enamel glaze obtained via sintering is not high enough, fishscaling is observed, and acid and alkali resistance is not high enough. The vanadium-titanium enamel glaze material is prepared from, by mass, 22 to 28 parts of pretreated vanadium-titanium magnetite titanium separation tailing or vanadium-titanium boundary ore, 20 to 22 parts of feldspar powder, 5 to 8 parts of quartz sand, 24 to 26 parts of borax, 1.5 to 2 parts of sodium nitrate, 3.5 to 5.5 parts of lithium carbonate, 5 to 7 parts of fluorite powder, 0.1 to 0.3 part of sodium fluosilicate, 3 to 5 parts of cryolite, 2 to 4 parts of limestone, 3 to 4 parts of cobalt nitrate, 1 to 2 parts of nickel nitrate, 2 to 3 parts of sodium vanadate, and 1 to 2 parts of antimony oxide. Firm combination of the vanadium-titanium enamel glaze material with carbon steel billet can be realized; acid and alkali resistance is higher than that stipulated by national standard; and the vanadium-titanium enamel glaze material can be used for a plurality of matrixes such as hot-rolled carbon steel and cast iron.
Owner:PANZHIHUA UNIV

Method for preparing dry-type water-soluble colorful rock slices

The invention relates to a preparation method for a dry-type water colored sliver, comprising following technical steps: 1) preparation of polyurethane modification acrylic acid latex: dihydric alcohol is put into a reactor and then temperature is increased to 70 DEG C to 100 DEG C, then dihydric alcohol and organic tin dihydric alcohol is added and temperature is increased to 100 DEG C +/- 5 DEG C for 2 to 4 hour reaction, then temperature is decreased to 60 DEG C +/- 5 DEG C and methyl acrylate and dihydroxy methylpropanoic acid are added, then circumfluence temperature is controlled at 60 DEG C to 80 DEG C and reaction is carried out for 6 hours +/- 0.5 hours; when NCO value in reaction system is lower than 1, prepolymer is transferred into a dispersator and is dispersed in water dissolved in neutralizing agent of triethylamine, then water polyurethane is prepared; 50 to 100 pieces of water polyurethane are put into a reactor, temperature is increased to 70 DEG C to 90 DEG C and polyurethane modification acrylic acid co polymerization latex is obtained: step 2, the preparation of dry-type water colored sliver. The dry-type water colored sliver of the invention has the advantages of fine climate resistance performance, no conglutination on the way of transportation, fine elasticity, no discharging of organic matter with volatility and cost saving.
Owner:JIANGSU GUOLIAN TECH

Method for treating cyanobacteria in lakes by using loofah sponge to immobilize photosynthetic bacteria or compound microorganisms

The invention relates to the water quality treatment of eutrophic lake, belongs to the technical field of environmental protection, and in particular relates to a preparation method for a biological material loofah sponge immobilized with photosynthetic bacteria or compound microorganisms. The method comprises the following steps: step 1) high temperature sterilization treatment of the loofah sponge: washing the loofah sponge and placing the loofah sponge in a high temperature sterilization tank for closed high temperature sterilization for 1 to 3 hours, to kill infectious microbes in the loofah sponge; step 2) the surface treatment of the loofah sponge; step 3) soaking the loofah sponge after surface treatment in a prepared photosynthetic bacterial or compound microorganism solution for 1 to 6 hours, taking out and sealing for conservation at a temperature of -5 ~ 20 DEG C, and putting the prepared loofah sponge in eutrophic lakes according to the need; and step 4) fixing the prepared loofah sponge with immobilized photosynthetic bacteria or compound microorganisms on driftwoods to suspend in water; after 3 to 10 days, shaking off dead cyanobacteria attached on the surface of the loofah sponge; and if the cyanobacteria-killing effect of loofah sponge decreases, taking the loofah sponge out of water, and performing regeneration according to step 3). According to the invention, the loofah sponge prepared by the method has characteristics of low preparation cost, easy operation, and high efficiency in killing cyanobacteria.
Owner:佛山市顺德区活宝源生物科技有限公司

Method for preparing multifunctional nanometer protection coating through circulation small-power continuous discharge

The invention discloses a method for preparing multifunctional nanometer protection coating through circulation small-power continuous discharge, and belongs to the technical field of multifunctional nanometer protection coating through circulation small-power continuous discharge. The method comprises the steps that a reaction cavity is vacuumized, inert gas is introduced into the reaction cavity, a base material moves in the reaction cavity, monomer steam is introduced into the reaction cavity, chemical vapor deposition is carried out and comprises a pretreatment stage and a film coating stage, the plasma discharge mode is large-power continuous discharge in the pretreatment stage, the plasma discharge mode is small-power continuous discharge in the film coating stage, the pretreatment stage and the film coating stage are cycle and repeated at least one time, more active sites more introduced to the surface of the base material in a circulation mode in the film coating technological process, effective film coating is added, the film structure is more compact, the nanometer coating with of the multi-layer composite structure is obtained, multiple layers of protection are provided for the product, the more compact coating structure is shown microscopically, and excellent hydrophobicity, adhesive force, acid and base resistance, mechanical performance and moisture and heat resistance are shown macroscopically.
Owner:JIANGSU FAVORED NANOTECHNOLOGY CO LTD

Vacuum aluminizing/cathode electrophoresis composite protective technique for NdFeB magnet and NdFeB magnet with composite protective layer

The invention discloses a vacuum aluminizing/cathode electrophoresis composite protective technique for an NdFeB magnet, which relates to a surface treatment protective technique for an NdFeB magnet and an NdFeB magnet with a composite protective layer. The invention aims to provide a vacuum aluminizing/cathode electrophoresis composite protective technique for an NdFeB magnet, which has the advantages of high production efficiency and high corrosion resistance, and an NdFeB magnet with a composite protective layer composed of a vacuum aluminizing film and an electrophoresis epoxy resin paint film. The vacuum aluminizing/cathode electrophoresis composite protective technique for an NdFeB magnet comprises the following steps: (1) removing oil and rust from an NdFeB magnet; (2) carrying out vacuum aluminizing on the NdFeB magnet; (3) carrying out surface finish and passivation on the NdFeB magnet subjected to the vacuum aluminizing; (4) carrying out cathode electrophoresis on the NdFeB magnet, wherein the cathode electrophoresis liquid is single-component epoxy resin paint or double-component epoxy resin paint; and (5) drying and curing the NdFeB magnet subjected to the cathode electrophoresis.
Owner:YANTAI ZHENGHAI MAGNETIC MATERIAL CO LTD

Flame-retardant encapsulating material and preparation method thereof

The invention relates to the field of encapsulation of electronic component, in particular relates to a flame-retardant encapsulating material applicable to electronic and electric product and a preparation method of the flame-retardant encapsulating material, solving the problems of the prior art that the fire-proofing and flame retardant performance is poor, and relatively high flame-retardant rating cannot be obtained. The material comprises a component A and a component B; in percentage by weight, the component A comprises base stock bisphenol-A epoxy resin, fire retardant, diluent diethylene glycol dibenzoate, flexibilizer dioctyl phthalate, pigment, organic silicon defoaming agent and filler silica micropowder; the component B comprises curing agent phthalic anhydride or methyl tetrahydrophthalic anhydride, curing agent eleostearate anhydride, and accelerator 2, 4, 6-tri(dimethylamino methyl) phenol; before the flame-retardant encapsulating material is used, the component A is pre-heated in an oven and then uniformly agitated in an up-to-bottom way; and the component A and the component B are uniformly mixed, so as to obtain flame-retardant encapsulating material; and then the encapsulating can be carried out. The flame-retardant encapsulating material provided by the invention is mainly applicable to insulating packaging of various electronic components such as power engine, rail transit, war industry, spaceflight, car and power.
Owner:大连宝津科技发展有限公司 +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products