30results about How to "Low stain resistance" patented technology

The invention relates to a quaternary amino cation modified polysiloxane softening agent and a preparation method thereof. The structural formula of the softening agent is A1BA2. The preparation method comprises the following steps: (1) mixing hydroxy silicone oil and silane coupling agent according to a molar ratio of 1:1-1:4, and carrying out reaction on the mixture for 4 to 24 hours at the temperature of between 25 and 105 DEG C to obtain an amino terminated siloxane intermediate; (2) carrying out reaction on the amino terminated siloxane intermediate and epoxy quaternary ammonium salt for 2 to 10 hours in a solvent under the protection of nitrogen during the whole reaction, and finally vacuumizing the mixture and removing partial solvent to obtain a sticky transparent modified polysiloxane product; and (3) diluting the modified polysiloxane product by water and organic acid to obtain transparent emulsion, and adding an emulsifying agent which is 5 to 10 percent of weight of the emulsion into the emulsion to obtain a product. Compared with the prior art, the softening agent has the advantages of good softness, fluffy feeling, hydrophilicity, extremely low yellowing property, and the like.

The invention discloses fluorosilicone modified acrylic resin as well as a preparation method and an application thereof. The fluorine-silicon modified acrylic resin is prepared from the following components: methacrylate monomers, fluorine-containing acrylate monomers, acrylate-based silicone oil, allyl silicone oil, a polymerized active silane coupling agent, methacrylic acid, hydroxyl-containing active crosslinking monomers, glycidyl methacrylate, trimethylolpropane trimethacrylate, an initiator, a chain transfer agent and a solvent. The fluorine-containing acrylate monomer is composed of aC2-C3 short-chain fluorine-containing alkyl acrylate monomer and a C10-C12 long-chain fluorine-containing alkyl acrylate monomer. The fluorine-silicon modified acrylic resin prepared by the inventionhas the characteristic of high low viscosity, is convenient to construct and use, and reduces the generation of VOC. The coating prepared from the modified acrylic resin has the characteristics of high impact-resistant self-repairing function, icing prevention, low surface energy, hydrophobicity, oleophobicity, stain resistance, high and low temperature resistance and the like.

The invention provides a method for preparing fluorine-containing nitrile rubber by adopting a low-temperature emulsion polymerization method and a product obtained by using the method. The fluorine-containing nitrile rubber is prepared by adopting a fluorine-containing monomer emulsion polymerization method. In the polymerization process, a chelating titanate coupling agent is adopted, so that the ternary copolymerization efficiency of a fluorine-containing monomer and acrylonitrile and butadiene can be remarkably improved. A molecular weight regulator needs to be added for multiple times, and preferably, at the first time, 0.2-1 part of the molecular weight regulator is added; and when the conversion rate reaches 40%-65%, 0.05-0.2 part of the molecular weight regulator is supplemented. The comprehensive performance of the fluorine-containing nitrile rubber prepared according to the method is improved, the prepared fluorine-containing nitrile rubber is high in oil resistance and highin tensile strength, compared with fluorine-containing nitrile rubber prepared according to a common method, the oil resistance of the fluorine-containing nitrile rubber prepared according to the method provided by the invention is improved by 20% or above, and the tensile strength is 30 MPa or above, and meanwhile, the fluorine-containing nitrile rubber is outstanding in high and low temperatureresistance and excellent in ageing resistance, and has the characteristics of being good in elasticity, high in stretching strength, low in compression set, good in abrasion resistance, good in weather resistance, good in stain resistance and narrow in molecular weight distribution.

The invention relates to an infrared shielding type glass heat-insulating coating which is prepared from the following raw materials in percentage by weight: 40 to 50 percent of organic silicon modified acrylic polymer emulsion, 17 to 25 percent of nanometer semiconductor material, 0.1 to 1.5 percent of molecular bridge and 0.5 to 0.7 percent of dispersant. The coating enhances the transmission rate of a coating layer for visible light, so that the light transmission rate of the coating layer reaches 90 percent. The coating layer achieves high infrared reflectivity and shielding rate: the reflectivity thereof for infrared rays reaches 85 percent, and the coating layer with the high infrared reflectivity has high heat-insulating effect; coated glass can not be penetrated by an infrared night vision instrument due to the high infrared shielding rate of the coating layer, and indoor privacy is protected. In addition, the coating of the invention has lower heat transfer coefficient, and the heat transfer quantity thereof is lower than 29 percent of solar energy.

The invention provides a nanometer metal ceramic coating, belonging to the field of environment-friendly coatings. The nanometer metal ceramic coating is prepared from the following raw materials in parts by weight: 20-45 parts of a nanometer ceramic filler, 20-45 parts of a binder, 5-15 parts of nanometer metal powder and 10-20 parts of water. Compared with the prior art, the nanometer metal ceramic coating has excellent corrosion resistance, high blackness, good energy-saving effect, good surface self-lubricating effect, high contamination resistance, small possibility in falling and cracking, and no influence on heat transfer of four pipes of a boiler.

The invention discloses a water-based fluorine-containing acrylate copolymer emulsion and a preparation method thereof. According to the scheme, methyl methacrylate, butyl methacrylate, methacrylic acid and other monomers are copolymerized to prepare a fluorocarbon resin emulsion; fluorine-containing acrylate monomers such as trifluoroethyl acrylate, octafluoropentyl methacrylate and hexafluorobutyl methacrylate are introduced in a preparation scheme, fluorine-containing groups are easy to migrate to the surface and are enriched on the surface, so that a coating film is endowed with excellent hydrophobic performance, and due to the advantages of excellent weather resistance, chemical resistance stability and the like of a fluorine-containing polymer, the hydrophobic property of the coating film is greatly improved. It can be guaranteed that a coating film has the properties of low surface energy, low friction, stain resistance, good water and oil resistance, self-cleaning performance and the like, and the comprehensive practicability is high. And meanwhile, pretreatment and parameter limitation are carried out on the PET film in cooperation with the scheme, so that the adhesive force between the coating film and the PET film is further improved.

The invention discloses a nanometer heat-insulating coating and belongs to the technical field of coatings. The invention aims to solve the technical problem of poor heat insulating effect of the present heat-insulating coating. The nanometer heat-insulating coating contains the following components in parts by weight: 25-40 parts of deionized water, 35-45 parts of elastic acrylic emulsion, 4-8 parts of silicic acid short aluminum fiber, 5-10 parts of kaolin, 4-8 parts of silicon dioxide aerogel, 20-25 parts of hollow glass beads, 1-3 parts of dispersing agent, 1-3 parts of de-foaming agent and 1-3 parts of stabilizer. The nanometer heat-insulating coating prepared according to the invention has the advantages of construction of film, safety, fireproof property, environment-friendly and energy-saving effects, high cost performance, and the like, and can be widely applied to the heat-insulating coatings of interior and exterior walls of buildings, warehouse, refrigeration storage, and the like.

The invention discloses a sintered inorganic quartz stone plate and a production process thereof. The sintered inorganic quartz stone plate comprises the following raw materials in percentage by weight: 80-93% of 325-400-mesh quartz powder, 0-10% of 1250-mesh quartz powder, 0-10% of colored granite rock powder or quartz powder, 1-5% of feldspar powder, 2-6% of kaolin and 0-2% of a pigment. The production process comprises the following steps: firstly, uniformly mixing all raw materials in a mechanical stirring mode, adding 5-25 parts of water, 0-2 parts of a water reducing agent and 0-2 partsof a blank reinforcing agent in parts by weight, and performing uniform stirring till a mixed material state meeting the condition that molding can be achieved through pinching by hands; and conveyingthe mixed material into a molding press, pressing the mixed material into a flaky blank, conveying the flaky blank into a drying kiln with integrated functions of drying and air exhaust, further feeding the mixed material into a sintering kiln, and performing sintering so as to obtain a finished product which has the characteristics of alkali corrosion resistance, ultraviolet resistance, deformation prevention, low water absorption rate, good antifouling performance, good wearing resistance, high strength and good toughness.

The invention provides a high-fidelity and high-frequency circuit board. The circuit board comprises a circuit layer, and insulation layers arranged on the front and back of the circuit layer. At least one metal layer is arranged on each insulation layer. At least one high-frequency sub-board is in press fit with part of the metal layer located at the top.

The invention discloses an environment-friendly self-cleaning coating for a shower room and a preparation method of the environment-friendly self-cleaning coating, and relates to the field of self-cleaning coatings. The self-cleaning coating has good film-forming property and can be cured to form a film on a substrate to form the self-cleaning coating, and a large number of C-F bonds existing on dodecafluoroheptyl methacrylate are utilized. The introduced fluorine atoms are small in radius, strong in electronegativity and high in C-F bond energy, have the minimum Van der Waals radius besides hydrogen, and also have a shielding protection effect on carbon chains, so that the self-cleaning coating can be endowed with excellent low surface energy, water resistance, oil resistance, lubricity, heat resistance, chemical resistance and stain resistance, and therefore, the self-cleaning coating has a good self-cleaning function and is convenient to clean after being used in the shower room, meanwhile, the self-cleaning coating can be endowed with good antibacterial property by utilizing quaternary ammonium salt groups in the antibacterial monomers, bacterium breeding in the shower room is avoided, and the probability that people get ill is reduced.

The invention provides a 3D printing resin for antibacterial wear-resistant shoes. The 3D printing resin is applied to the field of 3D printing. The 3D printing resin comprises the following raw materials in parts by weight: 20-40 parts of carboxyl-terminated butadiene modified acrylate, 10-30 parts of fluoroalkane modified acrylate monomers, 10-15 parts of a reactive diluent, 1-2 parts of a polymerization inhibitor, 2-3 parts of a photoinitiator, 3-5 parts of a pigment, 10-15 parts of a filler, 0.5-2 parts of an antibacterial finishing agent and 5-10 parts of a silane coupling agent. According to the obtained 3D printing resin for the antibacterial and wear-resistant shoes, the resin is compounded with high elasticity and wear resistance required by shoe materials, meanwhile, the antibacterial property requirement is met, and the 3D printing resin can be used in the field of 3D printing shoes.