98results about How to "Strong coating adhesion" patented technology

The invention discloses a method for improving the oxidation resistance of a graphite electrode by obtaining a SiC/C gradient surface coating through chemical vapor deposition. The method comprises the following steps of: performing surface pretreatment on the graphite electrode; fixing the graphite electrode which is subjected to surface pretreatment on a support in a water-cooled reaction furnace of chemical vapor deposition equipment, and vacuumizing in the furnace; heating the graphite electrode in the reaction furnace, and aerating CH4 gas to form a layer of pyrolytic carbon on the surface of the graphite electrode; keeping the temperature of a cavity unchanged, aerating carrier gas H2 to pass through boiling SiCl4 liquid, and reacting SiCl4 gas carried by the carrier gas H2 and the CH4 gas on the surface of the graphite electrode and depositing; and after the deposition is finished, keeping the temperature of the cavity unchanged, maintaining H2 atmosphere, performing in-situ heat treatment on the graphite electrode in the furnace, and cooling the graphite electrode to room temperature in the furnace after the heat treatment is finished so as to obtain the graphite electrodewith a SiC/C gradient functional surface protective layer. The invention has the advantages that: the permeability is high, the coating can permeate into any fine pores on the surface of a matrix of the graphite electrode, and a good effect of resisting the oxidation of surface voids can be achieved.

The invention provides a hydrocarbon-resistant outdoor thick fireproofing coating for steel structures, wherein the fireproofing coating is prepared from the following raw materials in percentage by weight: 30.0-38.0% of silicate (42.5R), 5.0-8.0% of coal ash (II-grade), 1.0-3.0% of ash calcium powder, 1.0-2.5% of latex powder, 0.2-0.3% of hydroxypropyl methyl cellulose, 4.0-6.0% of sepiolite powder, 10.0-13.0% of glass beads, 5.0-8.0% of hollow glass beads, 5.0-7.0% of brucite fiber, 4.0-6.0% of mica powder, 2.0-4.0% of expanded vermiculite, 0.8-1.1% of ammonium polyphosphate, 1.2-1.5% of melamine, 0.8-1.1% of pentaerythritol, 0.3-0.5% of ammonium dichromate, 2.0-4.0% of expansible graphite, 9.0-11.0% of nano iron-titanium powder and 3-7% of a coalescing agent. The hydrocarbon-resistant outdoor thick fireproofing coating has binding strength, good water resistance and acid-base resistance property, and is safe and non-toxic, little in smoke, thermocycling resistant, excellent in corrosion resistance, and hydrocarbon fire resistant; the fireproofing coating can be widely used for fireproofing and anti-corrosion coating protection of indoor and outdoor steel structures.

The invention discloses novel environment-friendly waterborne inorganic paint and a preparation method thereof. The novel environment-friendly waterborne inorganic paint is prepared from, by weight, 55-65 parts of kaolin, 12-20 parts of sodium silicate, 20-30 parts of titanium dioxide, 1-5 parts of nano zinc oxide, 5-10 parts of ultrafine wollastonite powder, 1-10 parts of nano calcium carbonate, 1-5 parts of ultrafine white mica powder, 7-15 parts of polyvinyl alcohol, 1-4 parts of ultrafine molybdenum disulfide powder, 2-10 parts of nano silicon dioxide, 2-12 parts of nano magnesium oxide, 2-12 parts of nano aluminum oxide, 1-3 parts of magnesium chloride, 1-3 parts of a sodium silicate hardening accelerator, 2-5 parts of a pH value regulating agent, 1-8 parts of a waterproof agent, 6-10 parts of an antifoaming leveling agent, 1-3 parts of a thickening anti-settling agent and 280-310 parts of water. The novel environment-friendly waterborne inorganic paint which is environment-friendly waterborne inorganic paint for buildings is high in storage stability, excellent in water resistance and alkali resistance, strong in adhesion, high in fire resistance, high in strength and hardness, resistant to scratching and contamination, excellent in corrosion resistance and antibacterial property, free of formaldehyde, benzene compounds, VOC (volatile organic compounds) and heavy metal elements, completely environmental friendly and nontoxic, suitable for industrial production, easy for painting and convenient and quick in construction.

Urethanation modified hybrid phenolic resin is prepared through the following steps: the grafting of linear phenolic resin and ethylene monoisocyanates is conducted through the phenol hydroxyl urethanation reaction, then the linear phenolic resin serves as a high-polymer monomer to conduct the second radical linear polymerization independently or jointly with other ethylene monomers to obtain the hybrid phenolic resin; the weight-average molecular weight of the urethanation modified hybrid phenolic resin is 7.500 to 150.000; and the temperature of the softening point is 80 to 220 DEG C. The urethanation modified hybrid phenolic resin is used for thermosensitive flat printing plates, and can obviously enhance the solvent resistance and the durability of the thermal plate due to the existence of strongly polar urethane links, and the flat printing plate has the advantages of strong coating adhesion and toughness.

The invention relates to surface treatment of chain parts, and particularly relates to a corrosion resistant surface treatment method of chain parts. A Fe-Al intermetallic compound corrosion resistant coating is obtained by adopting liquid state aluminum impregnation and following diffusion treatment for parts of a chain, such as a chain plate, a pin roll, a sleeve and a roller. The process flow comprises the following steps: pretreatment, aluminum impregnation, diffusion treatment and following quenching and tempering, wherein aluminum impregnation is performed in an aluminum liquid for 1-5 minutes at 720-750 DEG C; diffusion annealing is performed for 30 minutes to 2 hours at 850-1000 DEG C in a protective atmosphere; the intermetallic compound corrosion resistant coatings with different thicknesses are obtained by adjusting the temperature and time of diffusion treatment; after diffusion treatment, oil quenching is performed, and then tempering is performed for 2 hours at an intermediate temperature of 400-450 DEG C or a low temperature of 180-220 DEG C. The method provided by the invention has the characteristics of simple and convenient process, low cost, strong binding force of the coating, adaptability to batch production of small pieces and the like, can be used for producing chains in a corrosive environment, the treated chain can replace common chains or stainless steel chains, the performance and service life can be improved, and the alloy resources can be saved.

The invention discloses building glass heat-insulating coating and a preparation method thereof and relates to the field of coatings. The building glass heat-insulating coating comprises, by weight, 18-24 parts of acrylic emulsion, 10-16 parts of waterborne polyurethane emulsion, 1-4 parts of palm oil, 4-7 parts of nano silica, 4-7 parts of nano titania, 2-5 parts of aerogel, 4-7 parts of hollow glass microspheres, 2-5 parts of nano silicon nitride, 2-5 parts of modified zinc oxide, 1-3 parts of an adhesion promoter, 0.2-0.6 part of a defoaming agent, 0.6-1.2 parts of a dispersing agent, and 0.6-1.2 parts of a film-forming aid. The building glass heat-insulating coating made with the synergic materials has good heat insulation, a layer of the coating has good adhesion and good resistance to mechanical impact, and the preparation method has a simple process and is easy to perform.

The invention discloses a metal surface silane treatment agent and a preparation method thereof, and relates to the technical field of metal surface treatment. The silane treatment agent is prepared from a component A and a component B, and the component A comprises, by weight, 4-10 parts of gamma-aminopropyltriethoxysilane, 1-3 parts of gamma-glycidyloxypropyltrimethoxysilane, 0.2-0.8 part of gamma-chloropropyltriethoxysilane, 0.4-1.2 parts of methyltriethoxysilane, 0.1-0.3 part of benzotriazole, 6-12 parts of polyol and 90-110 parts of water; and the component B comprises, by weight, 12-18 parts of gamma-aminopropyltriethoxysilane, 0.2-0.8 part of gamma-chloropropyltriethoxysilane, 0.2-0.8 part of N-(beta-aminoethyl)-gamma-aminopropyltriethoxysilane, 10-17 parts of polyol and 60-80 partsof water, and a weight ratio of the component A to the component B is 1:(0.8-1.25). The silane treatment agent has a good stability, a film formed on the metal surface is stable and uniform, and thepolycondensation reaction of the silane treatment agent does not occur in advance, so the defects of poor stability and polycondensation loss before film formation of silane coupling agents in the prior art are overcome.

The invention provides a coated cutting tool which comprises a base material and a coated layer. The coated cutting tool is characterized in that the coated layer comprises an inner PVD layer and an outer CVD layer; the CVD layer serves as at least one TiN layer or Ti-B-N layer, or adopts the structure that a plurality of TiN layers and Ti-B-N layers are alternated; the content of B in each Ti-B-N layer is 8-16at%; a bonding layer is formed between the PVD layer and the CVD layer, and made of a metal carbon-nitrogen-oxygen compound; and the structural thickness of each TiN layer or Ti-B-N layer ranges between 0.2-150 nm. The coated cutting tool provided by the invention adopts a coated technology scheme which combines the PVD layer with the CVD layer, so that not only is the toughness good, but also the abrasive resistance is high and the coating adhesion is excellent. Accordingly, the coated cutting tool is relatively long in service life.

The invention provides a preparation method a high-temperature-resistant high-infrared-emissivity coating. The preparation method comprises the following steps that different proportions of MoSi2 powder and SiC powder are evenly mixed with a binding agent, a defoaming agent and a dispensing agent, and then water is added to an obtained mixture to conduct grinding, so that uniform pulp with certainviscosity is obtained; spray granulation is conducted on the pulp, so that spray powder with a high degree of sphericity is obtained; the obtained powder is placed under an Ar atmosphere at the temperature of 1400 DEG C so as to be roasted for 2 hours, so that compact spherical powder is obtained; and the high-temperature-resistant high-infrared-emissivity coating is obtained on the surface of stainless steel subjected to roughing treatment through the atmospheric plasma spraying technique. The infrared radiation coating prepared through the thermal spraying method can achieve metallurgical bonding with a matrix and is high in bonding capacity and not prone to cracks and stripping, and the problem that it is different for infrared radiation ceramic to adhere to a metal matrix is solved; and meanwhile, the technical problems that an existing high-temperature infrared radiation coating is provided with a short-wave section low in infrared radiancy and is poor in thermal shock resistanceare also solved.

The invention discloses an antiskid powder coating and an online coating method thereof. The antiskid powder coating comprises the following raw materials: phenolic aldehyde modified epoxy resin, a phenolic curing agent for curing the phenolic aldehyde modified epoxy resin and an antiskid agent, wherein the phenolic aldehyde modified epoxy resin and the phenolic curing agent can be subjected to across-linking curing reaction under a curing condition, and the anti-skid agent is used for generating coating anti-skid lines during the curing reaction so that the adhesion force between the coatingfilm and the base material and the anti-skid performance of the surface of the coating film can be improved simultaneously. With creatively screening and designing the characteristics of the raw material formula, the anti-skid property of the coating film can be effectively improved on the premise of ensuring good adhesion performance of the coating film, and the antiskid powder coating is quitesuitable for meeting the requirements of the field of coating protection with excellent anti-skid property requirements.

The invention belongs to the technical field of lithium ion batteries, and concretely discloses a coating used for preparing an aqueous flexible anode piece, the aqueous flexible anode piece prepared through adopting the coating, and a lithium ion battery adopting the anode piece. The coating used for preparing the aqueous flexible anode piece is basically composed of 90-98wt% of an anode powder, 0.5-3wt% of an aqueous dispersant, 1-5wt% of an aqueous thermoelastic binder and 0.5-8wt% of a conductive agent. The flexibility of the anode piece prepared through adopting the aqueous flexible anode piece coating is good, so a defect of large brittleness of present aqueous anode pieces is overcome; and the adhesion of the prepared anode piece is strong, so requirements of various battery making technologies can be satisfied, and requirements of various electrochemical performances are satisfied.

The invention belongs to the field of high polymer materials, and discloses a preparation method of a modified composite heat-resistant lithium ion battery diaphragm, which comprises the following steps: A, modifying aramid fibers; B, modifying an inorganic nano material; C, mixing the modified aramid fiber slurry and the modified inorganic nano slurry with a solvent in proportion to prepare organic-inorganic mixed modified slurry; and D, coating a base membrane with the organic-inorganic mixed modified slurry, and carrying out moisture solidification, washing, solvent removal and drying to obtain the modified composite heat-resistant lithium ion battery diaphragm. The problems of insufficient heat resistance, high moisture, large static electricity and the like of an existing aramid fibercoating diaphragm are solved.

The invention discloses a hydrocarbon-resistant indoor thin fireproofing coating for steel structures, aiming at solving the problems of general thin fireproofing coatings for steel structures which are easy to peel off in case of fire disaster, poor in adhesion performance, and poor in fireproofing and heat insulation effects. The technical scheme is as follows: the fireproofing coating is prepared from a component A: TBA type epoxy resin fireproofing coating, and a component B, namely polyamide 300 curing agent, at (1-3):1 in parts by mass, wherein the component A, namely TBA type epoxy resin fireproofing coating, consists of the following materials in parts by weight: 15-22 parts of TBBP-A epoxy resin, 10-15 parts of first curing agent, 20-24 parts of ammonium polyphosphate, 5-10 parts of melamine, 5-10 parts of pentaerythritol, 1-5 parts of antimonous oxide, 1-5 parts of chlorinated paraffin, 20-25 parts of aluminum hydroxide and 15-20 parts of zinc borate. The fireproofing coating has the advantages of good foaming effect, massive generation of carbide, little smoke, strong adhesion force, good acid-base resistance property and good fireproofing and heat insulation effects.

The invention relates to rust-inhibiting primer of water-soluble inorganic silicon solution and a process for preparation. The process comprises first, weighing water 5-40, inorganic silicon solution (TZG) 5-30, dispersing agent (5040) 0.2-0.6, defoaming agent (SA-3) 0.05-0.3, wetting agent (PE-100) 0.05-0.3, neutralizing agent (Amp-95) 0.05-0.3, and alcohol 1-5 into a synthesis autoclave according to percentage by weight of components and contents, dispersing for 10-20 minutes in low speed, second, weighing iron-oxide red 5-40, iron-oxide red earth 1-10, precipitated barium carbonate 1-10, zinc phosphate 0.3-5, and heavy calcium 1-10 into the synthesis autoclave according to percentage by weight of components and contents, and dispersing for 25-40 in high speed, third, sanding in a sand crusher, the degree of fineness is <=64um, fourth, weighing emulsion20-50, film former 0.5-3, and thickening agent 0.1-1 into the synthesis autoclave according to percentage by weight of components and contents, and adjusting the viscosity to be >=30, finally, getting end products after filtering. The invention has the advantages of environmental protection, strong tarnish proofness, excellent matching property with finish, long life span, low production cost and the like.

The invention provides nickel-based alloy powder for high-speed laser cladding and a cladding method of the nickel-based alloy powder, and relates to the technical field of inorganic materials. The nickel-based alloy powder comprises the components of 80wt%-83wt% of Ni, 10wt%-12wt% of Al, 4wt%-6wt% of Si, 1wt%-3wt% of WC, and the balance inevitable trace impurities. The invention further providesthe cladding method of the nickel-based alloy powder on a crystallizer copper plate base body. The cladding method mainly comprises the steps that the pretreated crystallizer copper plate base body ispreheated, and heat preservation is carried out on the crystallizer copper plate base body in the cladding process. A laser cladding layer coating obtained through the cladding mode of the nickel-based alloy powder on a crystallizer copper plate is high in binding force and good in compactness, and the crystallizer copper plate is heated lightly, so that the deformation amount is small; the crystallizer copper plate has good machinable machining performance, so that the abrasion resistance, corrosion resistance and cladding efficiency of a crystallizer are greatly improved; and the cladding method can be suitable for new manufacturing and repairing of the crystallizer copper plate, and has remarkable economic benefits and social benefits.

The invention relates to a waterborne epoxy self-leveling anti-scratch floor paint and a preparation process thereof. The waterborne epoxy self-leveling anti-scratch floor paint is characterized by being prepared from a component A and a component B, wherein the component A comprises, by mass, 80 parts of waterborne epoxy resin and 20 parts of an active diluent; and the component B comprises, by mass, 20-25 parts of a waterborne epoxy curing agent, 22-33 parts of deionized water, 0.2-0.6 part of a wetting and dispersing agent RS610, 0.3-0.5 part of a defoaming agent DF681F, 0.5-1 part of an anti-scratch aid, 0.2-0.4 part of an alkali swelling thickener A401, 4-6 parts of titanium dioxide, 2-3 parts of phthalocyanine blue BGS, 1-1.5 parts of strontium chrome yellow 801, 10-15 parts of lightcalcium carbonate, 20-25 parts of precipitated barium sulfate, 2-3 parts of an anti-scratch agent and 10-15 parts of ultrafine talcum powder. The paint provided by the invention utilizes water as a dispersion medium, does not contain volatile organic solvents such as toluene and xylene, saves a lot of resources, eliminates the possibility of fire hazards during construction, reduces pollution tothe atmosphere, and enhances working environment conditions. A coating formed by the paint has good adhesion; and a paint film formed by the paint has greatly improved scratch resistance and good adhesion to most substrates.

A mold release film comprising a coating layer and a mold release layer provided in this order on one surface of a polyester film which is stretched at least in the monoaxial direction, the coating layer comprising an aluminum chelate compound and/or a zirconium chelate compound, the mold release film having a critical destruction load (CDC) on the mold release side of 40 mN or higher, and the quantity of an oligomer extracted with dimethylformamide from the surface of the mold release layer after treatment at 180 DEG for 10 minutes being 1.5 mg/m2 or less. In the mold release film, the quantity of an oligomer precipitated therefrom is quite small and the adhesion of the mold release layer to a coating film is good.