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655results about How to "High hiding power" patented technology

Method for forming coating film and coating composition

A coating film which has no problems in its film properties and is superior in hiding power for hiding sand scratches on the substrate and exhibiting a continuous plated metal-like appearance is formed in a stable manner, by coating the substrate with a primer (A) and / or a first metallic paint (B) containing non-leafing type aluminum flakes (a) having thicknesses in the range from 0.1 to 1 mum and an average particle size of 1-60 mum and, then, coating with a second metallic paint (C) containing small, thin metal flakes (b) having thicknesses not greater than 0.08 mum and an average particle size of 5-40 mum.
Owner:BASF NOF COATINGS CO LTD

Dry powder paint for construction as well as preparation method and use method thereof

The invention relates to dry powder paint for construction, which is prepared from polymer latex powder, titanium pigment, calcium carbonate, calcined kaolin, talcum powder, cellulose ether, a solid defoaming agent, a solid dispersing agent, a solid thixotropic agent and coloring pigment. The preparation method of the dry powder paint comprises the following steps: putting the components of the dry powder paint into a dry powder mixer for mixing for 20-40min, and then, removing bigger particles by using a vibratory screen with 120 meshes. The use method of the dry powder paint comprises the following steps: carrying out surface pretreatment on a wall body; pouring the dry powder paint into clear water and stirring and mixing evenly, standing, and then stirring again; and applying the obtained liquid paint by adopting a roller painting, spray painting or brush painting mode. The formed paint film has the characteristics of good water resistance, alkali resistance, weather resistance, washing resistance, dirt resistance and the like, has the performances of the traditional latex paint and does not contain components of VOC (zero VOC), heavy metals and the like harmful to the environment and the human health.
Owner:SOUTH CHINA UNIV OF TECH

Method for producing rutile type titanium white powder with high hiding power

The invention discloses a method for producing rutile type titanium white powder with high hiding power, which comprises the following steps of: preparing slurry containing a primary titanium dioxide product, diluting the slurry, adding a silicon-containing compound into the slurry, then adding the silicon-containing compound and an acid aluminum-containing compound into the mixture, and performing ageing, filtration, water washing, drying, crushing and the like. The adding order, adding mode, adding quantity and the like of each coating agent are controlled by fine processes, and process and parameter conditions of each operation step are strictly controlled at the same time so that the added coating agents are deposited on the surfaces of titanium white powder particles in forms of compact silicon dioxide coating layers, loose silicon dioxide coating layers and alumina coating layers; and the hiding power of a titanium white powder product is improved and the characteristics such as high whiteness and the like and basic weather resistance of the titanium white powder product are kept by combining the processes of ageing, filtration, water washing, drying, crushing and the like.
Owner:SICHUAN LOMON TITANIUM IND CO LTD

Preparation method of special type titanium dioxide pigment for plastic color master batch

The invention provides a preparation method of a special type titanium dioxide pigment for a plastic color master batch, comprising the following steps of: preparing a titanium dioxide primary product into titanium dioxide slurry; adjusting a pH (Potential of Hydrogen) value by using an alkaline solution; adding phosphate or phosphoric acid, dispersing and carrying out grinding treatment; heating and raising the temperature; adding an acidic aluminum salt compound or an alkaline aluminum salt compound; meanwhile, adding inorganic acid or inorganic alkali and maintaining the pH value of the slurry; curing to form a first layer of a hydrated alumina covering layer on the surface of a titanium dioxide particle; continuously adding the inorganic acid or the inorganic alkali, adjusting the pH value and curing; washing by using de-ionized water and filtering; adding modified polysiloxane into a filtering cake; dispersing at a high speed to form a second layer of an organic silicon covering layer on the hydrated alumina covering layer; and drying and carrying out air-powder treatment to obtain the special type titanium dioxide pigment for the plastic color master batch. The preparation method disclosed by the invention has the advantages that the combination property is good; the dry powder mobility, the dispersity, the covering capability, the machining plasticization performance, the light resistance and the heat resistance achieve the level of special titanium dioxide for an international color master batch; and the application prospect is wide.
Owner:中信钛业股份有限公司

Method for preparing special titanium dioxide pigment for plastic sectional materials by chlorination method

The invention provides a method for preparing special titanium dioxide pigment for plastic sectional materials by a chlorination method, which comprises the following steps that: the chlorination method is adopted for preparing titanium dioxide primary products into slurry, and the pH value of the slurry is regulated to 4.0 to 5.0; phosphate dispersing agents are added; grinding treatment is carried out, then, grinding media is removed, and the temperature is raised; water-soluble silicate solution is added, the pH value of the slurry is maintained between 3.5 and 4.5, amorphous silicon oxide is formed, curing is carried out, and a first covering layer is formed; the pH value of the slurry is regulated to 6.0 to 7.0, curing is carried out, and a second covering layer is formed; aluminum salt solution is added, the pH value is controlled between 7.0 and 9.0, curing is carried out, a third covering layer is formed, the pH value of the slurry is regulated to 6.0 to 7.0, and curing is carried out; the slurry is washed by de-ionized water until the conductivity of filter cake is higher than 15000 ohm*cm, and then, drying and air powder treatment are carried out; modified polysiloxane is added in the air powder process, and a fourth organic covering layer is formed; and materials are recovered through a bag filter. The titanium dioxide pigment prepared by the method provided by the invention has the advantages of high weatherability, high shielding capability, high non-transparency and excellent processing performance in the field of plastic sectional materials.
Owner:中信钛业股份有限公司

Organic-inorganic composite nanometer heat-insulating fire-retardant coating and preparation method thereof

The invention discloses an organic-inorganic composite nanometer heat-insulating fire-retardant coating and a preparation method thereof. The organic-inorganic composite nanometer heat-insulating fire-retardant coating is prepared by mixing organic film-forming substance acrylic ester emulsions or styrene-acrylate emulsions, epoxide resin, organic intumescent fire-retardant system pentaerythritol, melamine and ammonium polyphosphate with inorganic fire retardant nanometer aluminum hydroxide, nanometer magnesium hydroxide, filler nanometer titanium dioxide, ceramic hollow microspheres, glass hollow microspheres and a part of auxiliary agents. The organic-inorganic composite nanometer heat-insulating fire-retardant coating disclosed by the invention not only has excellent facing property and fire-retardant property, but also achieves reflection effect on solar radiation and certain heat-insulating and heat-preserving property on a substrate, also has good adhesivity, mechanical property and hydrophobic effect, can be formed through spray coating or brush coating before being solidified, and is a novel water-based multifunctional fire-retardant material. The organic-inorganic composite nanometer heat-insulating fire-retardant coating disclosed by the invention can not only be used as a general building wall body fire-retardant coating, but also be suitable for the fire prevention of building and ornament materials, heat-insulating materials, steel structure supports, beam columns, metal roofs and the like.
Owner:山西省建筑科学研究院集团有限公司

Method for producing base coat being matched with blank and having excellent glazing effect

InactiveCN102503576AGlazed effect is goodQuality assuranceCalciteSlurry
The invention provides a method for producing a base coat being matched with a blank and having an excellent glazing effect and relates to the technical field of building materials. Materials are selected within a preset component scope of the base coat and the technology is standardized. The method comprises the following steps: mixing roasted kaolin, quartz, potash feldspar, soda feldspar, calcite, steatite, dolomite, zinc oxide, zircon powder and nepheline, which are less than 100 meshes and are 2-30kg, thereby obtaining the raw materials of the base coat; adding thickening agents, water reducing agents and a right amount of water into the raw materials of the base coat, wherein the thickening agents and the water reducing agents are both 0.3-0.5% of the raw materials of the base coat; and putting into a ball mill, thereby milling into a slurry base coat end product, wherein the end product comprises the following chemical components: 40-60% of SiO2, 15-25% of Al2O3, 5-15% of CaO, 0-8% of MgO, 2-10% of K2O+Na2O, 0-8% of ZnO, 3-12% of ZrO3, 0-2% of thickening agents and water reducing agents, and the fineness is 0.4-0.5% of ten-thousand hole screening. The method is used for producing the base coat. The base coat is matched with the blank and is excellent in glazing effect.
Owner:GUANGDONG BODE FINE IND CONSTR MATERIAL

Preparation method of high-light-resistant titanium dioxide pigment for laminated paper

The invention provides a preparation method of a high-light-resistant titanium dioxide pigment for laminated paper. The method comprises the following steps: preparing titanium dioxide slurry from a rutile-type titanium dioxide initial product prepared by adopting a chlorination process method, and adjusting the pH value to 8.5-10.5; adding a citric acid radical-containing organic substance as a dispersing agent, and performing grinding treatment; performing heating to 55-65 DEG C for coating treatment, performing coating by using a dense aluminum phosphate coating layer, performing coating byusing a loose silicon aluminum compound coating layer, and performing coating by using a loose boehmite-type hydrated aluminum oxide coating layer; performing washing by using deionized water until conductivity of a filter cake is greater than 15000 omega*cm, and performing drying; and adding amino-containing organic matter in the steaming powder process, and performing organic coating treatmentto obtain the titanium dioxide pigment for the decorative laminated paper. The method provided by the invention has the advantages that the titanium dioxide pigment prepared by the method has the characteristics of high light performance, good whiteness and a high retention rate in the laminated decorative paper, and the prepared titanium dioxide pigment has a medium color bottom phase and the advantage of easy color matching, and can be widely used in the field of the high-end laminated decorative paper.
Owner:中信钛业股份有限公司

Multifunctional environment-friendly emulsion as well as preparation method and application thereof

The invention discloses organosilicon-acrylate ester / inorganic nanometer composite emulsion as well as a preparation method and application of the composite emulsion. The composite emulsion consists of 4.0-8.0(wt)% of inorganic nanometer grains and 92-96.0(wt)% of organosilicon-acrylate ester polymers. The preparation method comprises the following steps of (1) preparing polymer-coated inorganic nanometer grain emulsion; (2) adding an acrylate ester monomer to prepare a shell polymer; (3) adding unsaturated organosilicon monomer to obtain organosilicon modified composite emulsion; (4) carrying out chemical degassing; and (5) removing residual monomers and neutralizing to obtain target products. The prepared organosilicon-acrylate ester / inorganic nanometer composite emulsion has good stability and excellent film-forming performance, modifies the thixotropy of a coating system and also has excellent settlement resistance. Water-borne coating prepared by the composite emulsion disclosed by the invention has the advantages of high adhesion force, paint film washing resistance, alkali resistance, paint film strength, surface cleanness and paint film covering force; and the volatile matter content of the coating is very low; the water-borne coating is green and environment-friendly and also has anti-bacterial property and bactericidal property.
Owner:NANTONG TENGLONG CHEM TECH CO LTD

Black zirconia ceramic and preparation method thereof

The invention discloses a black zirconia ceramic material composition. The black zirconia ceramic material composition is prepared from the following ingredients in percentage by mass: 0.01-4% of ferric oxide, 0.01-3.5% of cobaltous oxide, 0.01-3.5% of chromic oxide, 0.01-15% of aluminum oxide, 0.01-4% of nickel oxide, 0.01-3.5% of manganese oxide, 0-3.5% of zinc oxide, 2-7% of yttrium oxide, 0-4%of titanium oxide, 0-3% of silicon dioxide, 0-5% of cerium oxide and the balance of hafnium oxide-containing zirconium oxide. The black zirconia ceramic material composition disclosed by the invention is small in powder particle size and uniform in dispersion, and a black zirconia ceramic containing the black zirconia ceramic material composition has relatively high strength and rigidity, relatively high covering power and relatively low transmittance. Meanwhile, the invention further discloses the black zirconia ceramic prepared by adopting the black zirconia ceramic material composition anda preparation method of the black zirconia ceramic.
Owner:CHAOZHOU THREE CIRCLE GRP
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