32results about How to "Overcome the disadvantage of poor adhesion" patented technology

The invention relates to an ultrathin water-based epoxy resin expandable fireproof paint and a preparation method thereof, belonging to the technical field of plating metal materials. The fireproof paint comprises water, aqueous epoxy emulsion, a solidification agent, ammonium polyphosphate, a charring foaming agent, a charring accelerant, nano fillers, inorganic fireproof fillers, a dispersing agent, a defoaming agent and a thickening agent. A ball milling machine is adopted for preparing a double-component paint; component A is prepared by two steps of: (1) dispersing the ammonium polyphosphate, the charring foaming agent, the charring accelerant, the nano fillers and the inorganic fireproof fillers in the water by the dispersing agent, with the milling time of 1 to 2 hours; and (2) adding the solidification agent and the defoaming agent for continuously milling for 0.5 to 1 hour; and component B is prepared by one step of: milling the aqueous epoxy emulsion, the thickening agent and the defoaming agent for 0.5 to 1 hour. When the coating thickness of the fireproof paint is smaller than or equal to 1mm, the fireproof time is larger than 90 minutes, the maximum smoke density is smaller than 50, and the adhesion force is larger than or equal to 12MPa. The invention has the advantages of simple preparation process, environmental protection and excellent performance, and can be used for the fire safety protection of the inner parts of large steel structures of buildings, ships, oil storage tanks and the like.

The invention discloses a method utilizing compound sacrificial layers to manufacture an infrared detector. The method comprises sequentially enabling a metal layer, a first polyimide sacrificial layer, a second amorphous silicon sacrificial layer and through holes formed by imaging of the sacrificial layers to be arranged on a complementary metal-oxide-semiconductor (CMOS) silicon substrate; in a laminating mode, manufacturing a structure layer and contact holes formed by imaging; manufacturing a sensitive layer, a metal electrode layer and a release protecting layer, and imaging the sensitive layer, the electrode layer and a microbridge structure. When the sacrificial layers are released, first the second sacrificial layer is released, and then the first sacrificial layer is released. Compared with the prior art, the infrared detector manufacturing method effectively enables two kinds of different sacrificial layers to be effectively utilized, the organic sacrificial layer can be utilized to carry out planarization on the surface of a CMOS, the adhesion between the surface of the CMOS and metal is improved, and the inorganic sacrificial layer is utilized to control volatility of polyimide so as to be more compatible with the CMOS process.

The invention provides a preparation method for a concrete silane paste impregnation waterproof agent, relates to a preparation method for an impregnation waterproof agent, and aims to solve the problems that the adhesion of existing liquid silane and silane emulsion is poor. The preparation method comprises the following steps: 1, weighing; 2, mixing to obtain a mixed solution; 3, performing initial reaction to obtain a reactant; 4, emulsifying to obtain the concrete silane paste impregnation waterproof agent. The preparation method has the advantages that the shortcoming of poor adhesion of liquid silane and silane emulsion is overcome, the construction is convenient, and multiple construction manners such as spraying, brushing and roll coating can be adopted for coating of vertical surfaces, so that the loss of active substances is reduced; the permeability of a pore structure of the material per se can be maintained; the waterproofness and permeability of the concrete silane paste impregnation waterproof agent are better than those of liquid silane and silane emulsion, the water absorption of a concrete structure can be reduced by 90% or above, the penetration depth of silane is increased, and silane can penetrate into the concrete surface at 3-4 mm. The method is mainly used for preparation of the concrete silane paste impregnation waterproof agent.

The invention relates to pipeline coating comprising an asphalt composition. The pipeline coating comprises, by weight, 30-80% of asphalt, 10-30% of butadiene styrene rubber, 1-20% of glass flakes and 5-40% of epoxy resin. The invention further provides a pipeline coated with the pipeline coating, a method using the pipeline coating to coat the pipeline and application of the pipeline coating comprising the asphalt composition. The pipeline coating is simple in manufacture method, has excellent impact resistance and flexibility and further displays excellent high-temperature property and adhesive force.

The invention provides an inorganic filler plastic blending material, a preparation method thereof and a surface metalized plastic part which takes the blending material as raw material and is manufactured according to a laser direct forming process, wherein, at least one kind of transition metal ions and nanoscale metal particles is coated on the surface of the inorganic filler plastic blending material. The inorganic filler plastic blending material overcomes the disadvantages that the organic metal chelate used as photosensitizer additive has high plastic toxity and high cost, and the processing technique is complex; in addition, the adhesive force of the coated metal of the surface metalized plastic piece prepared by the plastic blending material and the basal body of the plastic pieceis good.

The invention relates to a preparation method for a titanium alloy TA2 surface ceramic film layer, in particular to a preparation method for a titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer, and aims to solve the problems that an existing titanium alloy TA2 surface coating is low in solar absorptivity, high in self emissivity, and low in bonding force of a film layer and a base body. The preparation method comprises the steps that 1, pretreatment is carried out on titanium alloy TA2; 2, micro-arc oxidation is carried out to obtain a titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer. The thickness of the prepared titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer ranges from 0.3 micron to 1 micron, the roughness of the film layer ranges from 0.2 micron to 0.25 micron, solar absorptivity ranges from 0.82 to 0.9, and emissivity ranges from 0.08 to 0.13. The titanium alloy TA2 surface high-solar absorptivity low-emissivity film layer can be obtained through the preparation method.

The invention relates to a rosinyl fluoride-free waterproof agent and a preparation method thereof. The rosinyl fluoride-free waterproof agent is prepared from the following raw materials in parts by weight: 10-100 parts of rosin-modified silicon wax, 5-20 parts of polyether urethane resins, 5-20 parts of cross-linking agents, 1-15 parts of emulsifying agents, 10-200 parts of solvents and 100-300 parts of water. The rosinyl fluoride-free waterproof agent provided by the invention is arranged as an environment-friendly waterproof agent; the waterproof agent is free from fluorocarbon compound; the defect of poor dynamic siphon-proof property of the fluoride-free waterproof agent in the prior art is overcome; the rosinyl fluoride-free waterproof agent has excellent static siphon-proof property; the defect of poor adhesive force of the waterproof agent product and superfine fiber synthetic leather base cloth in the prior art is overcome; the green reproducible natural rosin or ramification thereof is taken as the raw material, so that the waterproof agent has an important value of environmental protection and ultra-wide application prospect; the preparation is simple and environment-friendly.

The invention discloses a digital electronic equipment protective film. The digital electronic equipment protective film comprises a plastic frame (1) integrally molded through injection molding, and a rectangular basal plate (2), wherein the bottom of the plastic frame (1) has an annular connecting edge (3) for mounting the basal plate (2); the annular connecting edge (3) tightly coats the edge of the basal plate (2); and the edge of the basal plate (2) is embedded in the annular connecting edge (3). The invention further discloses a machining process of the digital electronic equipment protective film. The digital electronic equipment protective film and the machining process thereof have the following beneficial effects: the digital electronic equipment protective film synthesizes the advantages of glass materials and silica gel materials (including silica gel and such plastics as pet, abs, pp and pc), so that excellent protection effect can be achieved, the thickness of the protective film can be decreased, and the transparency is excellent; and the machining method adopting the high-precision mold injection molding or the die casting of the frame at the periphery of the glass basal plate guarantees excellent connecting structure between the glass basal plate and the plastic frame, and overcomes the defect of weak binding force between the glass materials and the silica gel materials.

The invention discloses a production method of high-dispersion high-thermal-stability insoluble sulfur. The method comprises the following steps: sulfur melting and heating: melting common sulfur at 145-155DEG C for sulfur melting, pumping the obtained melt to a heating tank, heating to 250-280DEG C, adding diethylhydroxylamine having a weight being 0.5-1% of the weight of sulfur, uniformly stirring, and heating to 490-550DEG C; and atomizing, quenching, curing, and cladding. The production method greatly improves the high-thermal-stability and the dispersibility of insoluble sulfur, and the insoluble sulfur obtained in the invention can completely satisfy the requirements of three-high insoluble sulfur by radial tires.

The invention provides a preparation method for a concrete silane paste waterproofing agent, and relates to the preparation method for a concrete silane waterproofing agent. The invention aims to solve the technical problems of coating failure due to capability of breaking surface coating during discharging of internal water of a protective coating on the surface of concrete, and incapability of guaranteeing self permeability of a concrete material in the prior art. The preparation method provided by the invention comprises the following steps: subjecting deionized water and a compound emulsifier to stirring until the compound emulsifier is completely dissolved, then adding amino silicon oil and triethylamine, adding a silane monomer, then carrying out stirring, carrying out natural cooling to room temperature, adding phosphoric acid until the mixture is neutral, adding a stabilizing agent and a sterilizing agent, and carrying out emulsification with a high-speed emulsifying machine. The preparation method provided by the invention uses water as a solvent, does not use a volatile solvent, and is free of harm to the environment and human; and compared with a pure silane monomer, the waterproofing agent has the advantages of little volatilization, high utilization rate, large penetration depth, simple process and good waterproof effect. The waterproofing agent provided by the invention has good stability, and has uniform color, no purity, no stratification, no floating oil and no obvious precipitate after standing for 4 months.

The invention provides a bisphenol A epoxy resin modified bifunctional polyester acrylate UV (ultraviolet)-transparent primer for wooden furniture, which comprises the following components in percentage by weight: 30-55% of bifunctional polyester acrylate, 0.1-0.3% of wetting and dispersing agent, 0.3-0.5% of defoaming agent, 18-40% of filler, 8-20% of monomer, 0.3-0.6% of leveling agent, 1-3% of bisphenol A epoxy resin and 3-10% of initiator. The primer has the advantages of favorable color, favorable transparency, favorable glossiness, low cost, stable properties and high storability; and the primer film has the advantages of short drying time, favorable transparency, high glossiness, favorable fullness and excellent mechanical properties. The invention also provides a preparation method of the transparent primer. The method has the advantages of simple technique, simple operation, favorable repetitiveness, short production cycle and high production efficiency, and is very suitable for industrialized production.

The invention discloses anti-stripping sulfur asphalt as well as a preparation method and application thereof. The anti-stripping sulfur asphalt is prepared from the following raw materials: 5 to 20 parts of sulfur, 1 to 5 parts of naphthalene series, 2 to 8 parts of ethylene-vinyl acetate copolymer, 1 to 3 parts of styrenated phenol, 1 to 3 parts of nitrogen-containing aromatic compound and 60 to 90 parts of petroleum asphalt. The preparation method of the anti-stripping sulfur asphalt comprises the following steps: (1) carrying out a reaction on sulfur and a naphthalene-based substance in an inert atmosphere, and (2) mixing and granulating an ethylene-vinyl acetate copolymer, styrenated phenol, a nitrogen-containing aromatic compound and a reaction product obtained in the step (1) to obtain particles, and (3) heating and melting the petroleum asphalt, and then adding the particulate matters to obtain the anti-stripping sulfur asphalt. The anti-stripping sulfur asphalt is particularly suitable for paving airport runways. The anti-stripping sulfur asphalt disclosed by the invention not only has relatively strong anti-stripping capability and very strong adaptability to a high-temperature wake flow environment of an airplane, but also has an ecological bird repelling function.

The invention relates to a method for applying oxidized PE wax to sealing protection of a circuit board. The method comprises the steps that the surface of the circuit board is coated with a layer ofcoupling agent, and air drying is conducted; the circuit board is dehumidified; a tackifier and a liquid toughening agent are added into the molten oxidized polyethylene wax to be uniformly mixed to prepare molten wax; the dehumidified circuit board is immersed in the molten wax for sealing, and after sealing is completed, the circuit board is placed on release paper and dried. By means of the sealing method, the defects that the oxidized PE wax easily cracks at the low temperature and has poor adhesion force are overcome; the tackifier and the toughening agent is added according to a ratio through repeated experiments, and finally, the oxidized PE wax can meet the requirement of the circuit board for effective waterproof and moisture-proof sealing in the working environment at minus 20-60DEG C. By means of the method, the good acid and alkali resistance, electrolytic-resistance chemical stability and hydrophobicity of the main ingredient PE wax are fully utilized, and a layer of waxfilm is formed on the surface of the circuit board and a component to protect the circuit board after melting.

The invention discloses a transparent and colorless conductive film for a flexible display. The preparation method comprises the following steps: first, using a diamine monomer comprising 2,2-bis[4-(4-aminophenoxy phenyl)]hexafluoropropane as a main component and a dianhydride monomer comprising 4, 4'-(p-phenylenedioxy)bis(phthalic anhydride) as a main component to react to obtain a polyamide acidsolution, then adding nanoscale barium ruthenate powder subjected to sintering at a high temperature of over 1700 DEG C, thereby obtaining a mixed solution, and performing imidization on a film obtained after removing solvents from the mixed solution, thereby obtaining the colorless transparent conductive film for a flexible display. The conductive film obtained by the invention is obtained by using a transparent and colorless flexible polyimide material as a matrix and adding high-conductivity BaRuO3 powder, and overcomes the defects of relatively poor flexibility of a traditional transparent conductive layer of ITO, nano silver wire, graphene and the like used in a flexible display, poor adhesion to the flexible substrate, and the like. At that same time, the problem that the transparency of the composite film obtained by adding conductive filler to a common polyimide matrix is poor and a conductive effect is not ideal is solved.