50results about How to "Improve discoloration problem" patented technology

The invention provides a glittery metallic powder coating and a preparation method thereof, which can solve the problems that the metallic glittery effect is undesirable, and the coat is easy to wear away and distributed unevenly existing in the prior art. The glittery metallic powder coating comprises the following components in percentage by weight: 50 to 70 percent of transparent powder, 25 to 45 percent of dark and light covering power, 2.0 to 5.0 percent of coarse aluminum silver powder, 0.05 to 0.5 percent of fine aluminum silver powder, 0.1 to 1 percent of wax powder, 0.1 to 1 percent of defoaming agent, and 0.05 to 0.5 percent of fluidity improver. The invention also provides a method for preparing the glittery metallic powder coating. The glittery metallic powder coating of the invention has the advantages that: the leveling can be improved; the surface of the coat has a strong metallic glittery effect, and the coat is easy to wear away and uniform in color so as to give people a fashionable and beautiful feeling and show a high-grade decoration effect, therefore, the glittery metallic powder coating is very suitable for high-grade decoration field; and meanwhile, the production cost of the glittery metallic powder coating is not high.

The invention discloses a rust remover and a preparation method thereof. The rust remover is prepared from the following components in percentage by mass: 60 to 80 percent of organic acid, 19 to 39 percent of inorganic acid and 0.8 to 3 percent of corrosion inhibitor, wherein the organic acid is one or more than two kinds of tartaric acid, citric acid, oxalic acid and trichloroacetic acid; the inorganic acid is one or more than two kinds of sulfamic acid, phosphorous acid and ammonium acid fluoride; and the corrosion inhibitor is benzotrizaole or/and sodium dihydrogen phosphate. According to the rust remover disclosed by the invention, the use of hydrochloric acid or sulfuric acid is completely avoided; no acid mist during rust removal is generated, the corrosion to equipment in a workshop is avoided and the labor environment is improved; meanwhile, the corrosion inhibitor is weaker in acidity, the over corrosion to workpieces is avoided and the condition that the skin of an operator is severely corroded is prevented; in addition, after a certain amount of workpieces are treated, the rust removing efficiency is reduced; and by continuously adding the rust remover disclosed by the invention, the rust removing efficiency can be restored, i.e., a rust removing bath solution disclosed by the invention can be conveniently and repeatedly used.

The invention belongs to the field of metal powder coatings, and in particular relates to a metal powder coating for enhancing a flash effect. The metal powder coating for enhancing the flash effect comprises an epoxy resin particle system containing epoxy resin, a correspondingly adaptive curing agent A and flash metal pigment, and a fluorocarbon resin particle system containing fluorocarbon resin and an adaptive curing agent B. The weight part ratio of the epoxy resin particle system to the fluorocarbon resin particle system is (6-4):(4-6). According to the metal powder coating for enhancing the flash effect disclosed by the invention, thick aluminium-silver powder is successively bonded into an epoxy resin layer by using a binding process, so that the thick aluminium-silver powder is deposited in the bottom layer of a coating together with the epoxy resin layer in the curing process and cannot float in the surface layer of the coating; and a transparent fluorocarbon resin layer floating to the upper layer plays a role of protecting oxidative resistance of flash metal powder.

The invention provides a color printing lamination metal plate and a preparation method thereof. The color printing lamination metal plate comprises a metal substrate and a color film adhered to at least one side surface of the metal substrate in an adhesive-free way; the color film is a relief block film; and the one side of the color film adhered to the metal substrate has color patterns. The color printing lamination metal plate provided by the invention contains no adhesive, and the color patterns of the printing film are sealed between the film and the metal substrate, so as to significantly improve the safety quality of the color printing metal plate; and the preparation method of the color printing lamination metal plate does not cause tensile deformation of the color printing patterns in a lamination process, and no adhesive is used to adhere the color printing film to the metal substrate.

The modified silver-carrying zirconium phosphate powder is prepared through the process of mixing silver-carrying zirconium phosphate powder with crystallization promoter in the amount of 3-20 wt% of the zirconium phosphate powder, and roasting at 800-1100 deg.c inside atmosphere with oxygen content over 5 vol% for 1-5 hr. The crystallization promoter is mixture of MgO or ZnO or compound capable of producing MgO or ZnO in roasting and B2O3 or compound capable of producing B2O3 in roasting with molar ratio of B2O3 to MgO or ZnO 0-0.3. The modified silver-carrying zirconium phosphate powder may be maintained in the air for long time and has no color change during mixing with resin.

The invention discloses an oral care composition, belonging to the field of oral care. The oral care composition is prepared from particles and an orally-acceptable carrier, wherein polyphenol compounds are encapsulated in the particles. According to the oral care composition, the polyphenol compounds are encapsulated in an embedding form, so that the problems that in the existing oral care compositions, the polyphenol compounds cannot well exert an antioxidant function and easily enable the oral care composition to change color due to being easily oxidized can be solved.

An electronic device includes a wet-label device. The wet-label device includes a moisture introduction portion formed in a case of the electronic device, at least one label portions provided in a position adjacent to the moisture introduction portion, and at least one rib portions provided in a position adjacent to the at least one label portions, in which the at least one rib portions guide or block introduction of the moisture to the at least one label portions according to wetness or submersion of the electronic device.

The invention relates to the technical field of learning articles, and discloses a convenient-to-carry and color-changeable mark pen. The mark pen comprises a rotating block, wherein a hanging hole isformed in the front surface of the rotating block. According to the convenient-to-carry and color-changeable mark pen, the rotating block and a screw rod are matched for use, the rotating block drives the screw rod to rotate, and the screw rod drives a moving tube on the outer side to move up and down in a circular tube, so that a pen point and a mounting column are driven to contract in the circular tube; when the mark pen needs to be used for writing, the hand holds the circular tube and rotates the rotating block forward, and the pen point can extend out of the inside of the circular tube;otherwise, the hand rotates the rotating block reversely, the pen point can retract to the inside of the circular tube, the pen point is protected inside the circular tube, and the mark pen cannot bedamaged even if the pen falls off; a magnetic ring and an iron ring are matched for use, and the magnetic force of the magnetic ring is utilized to tightly connect a cap and the circular tube; and the low-falling floor ink is absorbed through the use of a sponge, the outer leakage of the low-falling floor ink is prevented, and the purpose of the mark pen being convenient to carry and use is achieved.

The purpose of the present invention is to provide an antiviral vinyl chloride resin composition having excellent antiviral properties, an antiviral sheet, an antiviral wallpaper, and an interior sheet.

The present invention aims to provide a method for improving discoloration in pulp, characterized by a versatile technique adaptable to any type of pulp, a time-saving process, a great and permanent anti-fading effect, environmental friendliness and other properties, as well as a pulp with greatly improved discoloration obtained by said method for improving discoloration. Discoloration in pulp can be greatly improved by adding one or more additives selected from the group consisting of reducing agents, peroxides and hydrogen-donating organic compounds to one of bleached mechanical pulp, semi-chemical pulps, chemical pulp and deinked pulps or a mixture of two or more of them, and irradiating it with UV and/or visible light.

The invention discloses a triazolyl silane coupling agent as well as a preparation method and application thereof. The triazolyl silane coupling agent has a structural formula shown as follows: G1-R1-G2. R1 is an organic group as shown in a general formula (5) or (6), and in the general formula (6), X is a structure as shown in the general formula (5); wherein R4 is a hydrogen atom or a hydrocarbon group with 1-10 carbon atoms; r5 is an organic group having 4 to 40 carbon atoms; g1 and G2 are respectively and independently selected from one of structural formulas shown in general formulas (1)-(4), and R2 and R2'are independently selected from at least one of R3O, hydrogen atoms and alkyl with the carbon atom number of 1-10. The triazolyl silane coupling agent can significantly enhance the adhesiveness of heat-resistant resins such as polyimide and polybenzoxazole with a copper or copper alloy substrate after high-temperature thermocuring, and can significantly improve the discoloration problem of the copper or copper alloy substrate.

The invention relates to a cultivation method of colorful white oaks. The method includes: seed selection, stock cultivation, grafting, planting, field management and shaping pruning. The colorful white oaks cultivated by the method is high in poor soil tolerance, easy to manage, fast in growth, good in leaf color change, and good in greening and beautification effect.

The invention discloses a positive electrode, a preparation method thereof and a lithium ion battery. The positive electrode comprises a current collector and a positive electrode material layer arranged on the surface of at least one side of the current collector, a positive electrode material in the positive electrode material layer comprises a manganese-containing positive electrode material, and a complexing agent is arranged in the positive electrode material layer and/or on the surface of one side far away from the current collector. According to the positive electrode disclosed by the invention, the complexing agent is arranged in the positive electrode material layer and/or on the surface of one side, far away from the current collector, of the positive electrode material layer, so that the battery prepared from the positive electrode material layer can effectively capture dissolved manganese ions in a charging and discharging process, and the cycle performance of the battery is improved.

The invention discloses a glass outer protective film for cold environments, and belongs to the technical field of building glass. The glass outer protective film for the cold environments comprises afilm bonding glue layer, an elastic reset clamping layer is arranged on the right side of the film bonding glue layer, the film bonding glue layer can be adhered onto outer glass for the cold environments, influence of glass internal stress on glass is reduced when inner and outer temperature difference is large, breaking and cracking of the glass are decreased under large inner and outer temperature difference, four corners of the glass are adhered and fixed, so that the glass is naturally in an internal tension state, the glass has inward stress, the inward stress is within a controllable range, outer stress of the glass is offset after deformation of the outer glass caused by temperature difference, influence of the inner temperature on the glass stress is blocked, inner and outer temperature difference of the outer glass is reduced, the outer glass changes colors and reflects light after being irradiates to be heated, and increasing of outer stress caused by high temperature is decreased.