77results about How to "Play a covering role" patented technology

The present invention belongs to the field of chemical technology, and discloses one kind of acid corrosion retardant. The acid corrosion retardant contains urotropine, thiourea, benzotriazole, mercaptobezothiazole, sodium silicate and water. The acid corrosion retardant of the present invention is developed based on that some acids and some metals have high corrosion retarding rate.

The invention relates to a preparation method of lithium iron phosphate, an active substance applied in the anode of lithium-ion secondary batteries. The method comprises a mixture that contains lithium compound, iron compound, phosphorus compound and carbon source additive is sintered and cooled to get a sintering product; wherein, the sintering method comprises the step: the mixture that contains lithium compound, iron compound, phosphorus compound and partial carbon source additive is sintered at a first constant sintering temperature, then a mixture of the product acquired at the first sintering temperature and the residual carbon source additive is sintered at a second constant sintering temperature, and the second sintering temperature is at least 100 DEG C higher than the first sintering temperature. The batteries made of the lithium iron phosphate prepared by the method of the invention have markedly improved discharge performance at high current.

The invention belongs to the technical field of lithium secondary batteries and discloses a positive electrode sheet preparation method and a lithium ion secondary battery with a positive electrode sheet. Prepared positive electrode sheet paste contains an additive in a molecular formula (1), and the additive can be phosphorous acid or phosphite ester. By adding of the appropriate quantity of phosphorous acid and/or phosphite ester into the positive electrode sheet paste, the problem of powder shedding of the positive electrode sheet can be improved, adhesiveness between a positive electrode sheet coating and an aluminum foil is improved, a positive electrode material particle coating effect is achieved, and accordingly battery gas-producing expansion is remarkably inhibited while batterycycle stability is improved.

The present invention relates to a production method of titanium white paper. Said production method includes the following steps: mixing the titanium white powder and adhesive B to obtain titanium white powder mixed adhesive B; mixing the titanium white powder and adhesive A to obtain titanium white powder mixed adhesive A; impregnating base paper with adhesive; spray-coating titanium white powder mixed adhesive B on one side or two sides of base paper impregnated with adhesive; drying said base paper; then spray-coating the titanium white powder mixed adhesive A on two sides of the base paper coated with titanium white powder mixed adhesive B; drying said base paper; cooling and cutting so as to obtain the invented low-gum white impregnated adhesive film paper finished product.

The invention discloses a method for modifying natural fibers for anion polymer nylon 6 reaction, in particular relates to a method for primarily modifying the natural fibers in a specific solution and removing impurities which are attached on the surface of the natural fiber and can produce adverse effect on the anion polymerization process. In order to further improve the reaction processing process, the primarily modified natural fibers are modified in a specific coupling agent solution, so that the surface of the natural fiber is coated by a given coupling agent molecular layer, and the coupling agent molecular layer can play a role in shielding active groups, and also can play a role in facilitating interface interaction between the fiber and a polymer substrate. The modified natural fibers successfully react with anion polymer nylon 6, so that a novel natural fiber composite material is produced, and the natural fibers can be widely used in the field of a macromolecular material; meanwhile, the utilization rate of the natural fibers also can be increased, and the development of the natural fiber industry in China can be promoted.

The invention relates to the field of flame retardants, in particular to a modified aluminum hypophosphate flame retardant. A preparation method of the modified aluminum hypophosphate flame retardantcomprises the following steps: 1) adding aluminum hypophosphate and a dispersing agent in a reaction kettle and fully stirring, so that a solution is uniformly dispersed; 2) adding an adhesive and a modifying agent, raising the temperature, stirring and fully reacting to obtain a crude product; and 3) washing, filtering and drying the crude product to obtain the modified aluminum hypophosphate flame retardant. The modified aluminum hypophosphate flame retardant prepared by the preparation method provided by the invention can effectively solve the problems of low aluminum hypophosphate heat resistance, low compatibility, low dispersing performance and the like.

The invention discloses an antifouling antibacterial ceramic glaze, which is prepared from, by weight, 50-60 parts of basic glaze slurry, 7-9 parts of calcium oxide, 3-5 parts of calcium carbonate, 4-6 parts of aluminum hydroxide, 4-5 parts of an antibacterial agent, 5-7 parts of nano zinc oxide, 2-3 parts of sodium hexametaphosphate, 8-10 parts of a phosphoric acid aqueous solution and 2-3 partsof an yttrium nitrate aqueous solution. The invention further discloses a preparation method of the antifouling antibacterial ceramic glaze. By the adoption of the antifouling antibacterial ceramic glaze and the preparation method thereof, the antibacterial agent is added into basic glaze, the antibacterial agent can be uniformly distributed in the glaze, and sintered ceramic can continuously andslowly release silver ions in water, so that a continuous antibacterial effect is achieved; the phosphoric acid aqueous solution and the yttrium nitrate aqueous solution are adopted in the glaze, so that the ceramic sintered by the glaze has good hydrophobicity, dirt cannot be firmly attached to the surface of the coating, the dirt can be washed away when water drops flow past a surface layer, andan antifouling effect is achieved; and a preparation process is simple, the conditions are easy to control, and production cost is low.

The invention relates to the field of electrochemical materials, in particular to a carbon coated layer thickness adjustable nanometer ferroferric oxide composite material, a preparation method and application thereof. The preparation method comprises the following steps: firstly, taking sugar, a catalyst and a ferric salt solution as raw materials, reacting for 0.1 to 24 h under the conditions that the pH is 5 to 10 and the temperature is 5 to 90 DEG C, preparing an iron-sugar complex, and thus preparing the carbon coated layer thickness adjustable nanometer ferroferric oxide composite material from the iron-sugar complex through in situ calcinations or a hydrothermal method. The nanometer ferroferric oxide composite material with a carbon coated layer is prepared through different in situ calcinations conditions or the hydrothermal method by using the iron-sugar complex as a precursor, and due to the fact that a multi-stage carbon structure array can play the role of a fixed frame for ferroferric oxide, the volume effect in the charge and discharge cycle process is reduced, and when the composite material serves as the negative electrode of a battery, the performance of the battery can be improved obviously. The thickness of the carbon coated layer inside the carbon coated ferroferric oxide composite material can be changed by changing the additive amounts of sugar and the catalyst.

The invention relates to an attractive-appearance and anti-corrosive polypropylene composite material and a preparation method thereof. The attractive-appearance and anti-corrosive polypropylene composite material is prepared from the following raw materials in parts by weight: 100 parts of polypropylene, 5 to 10 parts of high impact polystyrene, 10 to 50 parts of glass fibers, 3 to 5 parts of compatilizer 1, 1 to 3 parts of compatilizer 2, 0.3 to 1 parts of antioxidant, 0.5 to 5 parts of lubricant, and 0.2 to 0.5 part of coupler. The invention also provides the preparation method of the attractive-appearance and anti-corrosive polypropylene composite material. The attractive-appearance and anti-corrosive polypropylene composite material has the advantages that the appearance is attractive, the anti-chemical corrosive property is realized, the tensile strength and notch impact strength are higher, the comprehensive property is excellent, and the attractive-appearance and anti-corrosive polypropylene composite material can be applied to the fields of washing machine drums, dish-washing machine brackets, pumps and the like.

The invention relates to a composite film for a touch screen and a production method of the composite film. The composite film comprises a hard coating, a composite base material, an SiOx layer, an SiO2 layer and an ITO layer, wherein the x ranges between 1.0 and 1.9, a transition layer of the SiOx layer is added between a polyethylene terephthalate (PET) base material and the SiO2 layer, a certain Si-dangling bond exists in the SiOx layer, the Si-dangling bond and a C-H bond or C-OH bond, which exists on the surface of the composiste material are combined to form a C-Si or a C-O-Si covalent bond, adhesive force of the SiO2 layer and the ITO layer on the composite material is enhanced, the degassing requirement for the composite base material is reduced greatly, the degassing processing time is shortened, the production efficiency is improved, and the SiOx layer and the SiO2 layer have covering functions for the base material, so that water in the composite material is prevented from affecting ITO coating films, and the stability of ITO resistance is guaranteed.

A compound disinfection tablet belongs to the technical field of chemical disinfection and comprises the following components by weight percent: 8-31% of sodium chlorite, 5-20% of dichlord isocyanurice acid, 10-20% of sodium bicarbonate, 0.5-3% of nanometer magnesium carbonate, 25-60% of solid acid and 0.5-1.0% of boric acid. The invention also discloses a preparation method of the compound disinfection tablet. The preparation method is simple, the prepared disinfection tablet is uniform in ingredient, can produce various disinfection ingredients including chlorine dioxide, hypochlorous acid and active oxygen after being dissolved in water, and is improved in sterilization and disinfection performance, the solution is good in stability and small in corrosivity, and the product using cost is lowered. The compound disinfection tablet is mainly used for sterilization and disinfection of swimming pool water, industrial circulating water, aquaculture water, daily life and the like.

The invention discloses an exterior wall panel with excellent sound-absorbing and fire-proof performance, which comprises a base layer, a sound-absorbing fireproof layer, a plastering mortar layer, a waterproof layer, a decorative coating and a wear-resistant layer; the preparation method of the sound-absorbing fireproof layer is as follows: hydroquinone, Potassium hydroxide and toluene are mixed evenly, and then a toluene solution containing hexachlorocyclotriphosphazene is added dropwise, heated up, kept warm, washed with an alkali solution to obtain an organic phase, then the organic phase is distilled under reduced pressure, dried in vacuum, and recrystallized to obtain material a ; Mix material a and polytetrahydrofuran ether glycol evenly, then add trimethyl-1,6-hexamethylene diisocyanate, fill with dry nitrogen for protection, heat up, keep warm, and cool down to obtain material b; Add trimethylpentanediol, glycerin, bismuth neodecanoate, foaming agent, foaming aid, expanded perlite, palygorskite, diatomaceous earth, glass fiber, flax fiber, zinc borate hydrate, anti-aging agent and Acetone is mixed evenly, coated on the surface of the base layer, then heated up, and kept warm to obtain a sound-absorbing and fire-proof layer.

The invention discloses a preparation method of a silver nanowire film heater resistant to repeated scraping. The method comprises the steps: coating a high-temperature-resistant substrate with silvernanowire glue; preparing line electrodes at the two ends of a conductive thin film; performing the dip coating of the surface layer of a metal thin film device with a layer of silica sol and then performing curing; finally, coating a device with a layer of glass glaze in a silk-screen or blade coating mode, and after high-temperature annealing, obtaining the heater resistant to repeated scrapingof the metal nano conductive thin film. The problems that an existing heater is complex in process, uneven in heating and not resistant to scratching are solved. According to the invention, the silvernanowire synthesized by a low-temperature liquid phase method is used as a raw material, the conductive film is coated by a non-vacuum and non-high-temperature film preparation process, and the thin-layer protective film is obtained by coating silica sol and glass glaze, so the raw material is low in cost, the preparation process condition requirement is low, and large-scale production can be realized.

The invention provides anti-counterfeiting identification with an interference element layer. The color of an identification layer and the color of the interference element layer belong to the same color system, the identification layer is covered with the interference element layer and characterized in that coatings capable of absorbing light invisible to the eyes are attached to a carrier, and light used for reading raster graphics can reach the raster graphics through the interference element layer. A method for identifying the anti-counterfeiting identification includes the steps that the light passes through the interference element layer to read the raster graphics; images of the raster graphics are analyzed to form raster graphic data capable of being identified; the raster graphic data are verified to distinguish the authenticity of the raster graphics and feed back relevant information. A device for achieving the method comprises an infrared reading module, a judgment module, a raster graphic image feedback module, an analysis module, a raster graphic database and a feedback module. According to the anti-counterfeiting identification and the method and the device for identifying the anti-counterfeiting identification, the identification layer can be shielded and covered with the interference element layer, and influences on identifying of the identification layer are avoided.

The invention discloses a container protective finish coating and a preparation method thereof. The container protective finish coating is prepared from 20.1-25 parts of water, 0.7-1 part of a wetting agent, 1.1-1.5 parts of a dispersant, 18-20 parts of titanium dioxide, 1.8-2.0 parts of barium sulfate, 7-10 parts of kaolin, 18-20 parts of talcum powder, 0.8-1 part of a defoamer, 32-35 parts of waterborne polyurethane and 0.5-1 part of a flatting agent. According to the technical scheme, the container protective finish coating is a water-based coating system, is extremely low in VOC amount, environment-friendly and good in adhesion, aging resistance, waterproofness and hardness.

The invention relates to an early strength durable hole sealing material based on hydration controlled-release aluminate cement and an application method. The sealing material is controllable in condensation, easy to construct and sufficient in gas expansion. An aluminate-silicate composite cement system with a certain matching ratio is adopted, and an appropriate amount of aluminum powder and resin high polymer materials are added. A grinding technology is adopted for preferentially grinding aluminate cement clinker and resin, and micro resin particles are adsorbed to the surfaces of mineral particles of the aluminate cement clinker. In the construction process, after the materials make contact with water, resin wrapping the surface of the clinker particle surfaces reacts with water to form an interwoven coating film, slow release control over hydration of aluminate mineral can be achieved, the forming speed and amount of ettringite, hydrated aluminate and other products are adjusted, the setting time of the sealing material can be effectively delayed, construction is convenient, the sealing material is allowed to be continuously expanded in a sealed hole, high early strength is provided for the material, hydration shrinkage of a silicate phase is compensated for, and the hole sealing material can be continuously and durably used.

The invention discloses an automotive polyvinyl chloride interior trimming panel and a preparation method thereof, belongs to the technical field of polyvinyl chloride panels, and solves the problemsthat the thickness, the hardness, the bending strength and the like of existing wood-plastic panels cannot meet the requirements of automotive interior trimming panels. The polyvinyl chloride interiortrimming panel is prepared from 80-100 parts of polyvinyl chloride SG8-type resin, 40-50 parts of heavy calcium carbonate, 10-20 parts of a wood-plastic reclaimed material, a foaming regulator as well as ingredients including a calcium-zinc stabilizer, an interior lubricant, an exterior lubricant, a foaming agent, wood flour and the like. The preparation method of the panel comprises steps as follows: the polyvinyl chloride SG8-type resin and the ingredients are put into a hot-mixing pot for hot-mixing, then the foaming regulator and calcium powder are put sequentially for hot-mixing, the wood-plastic reclaimed material is put finally, the mixture is put into a cold-mixing pot for cooling after hot-mixing, is sent to a mold for extrusion finally after being plasticized by seven sections of double screws of a barrel, is subjected to cooling press-fitting shaping by a shaping platform and is pulled out by a pulling machine for cutting forming, and a finished product is obtained. The invention is applicable to the automotive interior trimming panel.

The invention discloses a solar panel with an anti-covering structure. The solar panel comprises a solar panel main body, a support column main body and a pedestal main body, the left side of the solar panel main body is fixedly connected with the support column main body, the bottom end of the support column main body is equipped with the pedestal main body, and the outer wall of the solar panelmain body is equipped with an anti-covering mechanism. The anti-covering mechanism comprises a first sliding groove, and the interior of the supporting column body is provided with the first sliding groove. By arranging the mechanism, when the solar panel is not used, the solar panel can be correspondingly covered, the abrasion to the solar panel is further reduced, the service life of the solar panel is greatly prolonged, the practicability of the solar panel is further improved, and by arranging the mechanism, the height of the supporting column fixedly connected with the solar panel can becorrespondingly adjusted, the practical operability of the solar panel is improved, and the data acquisition accuracy of workers on the solar panel is further improved.

The invention discloses water-based propylene marker pen ink and a preparation method thereof. The water-based propylene marker pen ink comprises 10-20% of titanium dioxide, 0-4% of pigment, 5-8% of an interphase modifier, 40-50% of an acrylic resin emulsion film-forming agent and 25-40% of water, wherein the interphase regulator comprises an amphiphilic polymer and a polymer with a moisturizing effect. According to the ink, titanium dioxide and pigment are used, an environment-friendly non-toxic polymer is used as a functional interphase regulator, and a film-forming emulsion is matched, so that the ink which is stable in performance, smooth in water discharging, uniform in distribution and high in color fastness is obtained. The raw materials of the ink are cheap and easily available, the preparation process is simple and feasible, the process and the product are environment-friendly and non-toxic, and the ink does not contain any volatile organic small molecular substances.