2041results about How to "Not easy to peel off" patented technology

A plurality of thin-wall parts (9a) of a sealant layer (7) are formed in a portion continuously changed in the interval of one sealing part (8) and a gas barrier layer (6) of other laminate film (4). At the inner circumferential side between the adjacent thin-wall parts (9a) and the thin-wall part (9a) at the innermost circumferential side and at the outer circumferential side of the thin-wall part (9a) of the outermost circumferential side, a thick-wall part (9b) of the sealant layer (7) is formed. All of the opposing sealant layers (7) between the two adjacent thin-wall parts (9a) are mutually heated and fused, so that an excellent adiabatic performance is maintained for a long period.

A water nan-composite thermal-insulating coating for external wall and its production are disclosed. The coating consists of water, polymer emulsion, high-refractive index pigment, filler, nano-tin-antimony oxide slurry, nano-SiO2, wet dispersant, filming accessory, pH adjuster, thickener, de-foaming agent, anti-freezing agent and mildew-proof bactericide. It's cheap and simple, has excellent wash and weather resistances, better thermal-insulating performance, safe storage and no environmental pollution. It can be used for apparatus surface and architecture external wall.

The invention relates to an ultraviolet curing coating which is characterized in that the ultraviolet curing coating comprises 1-35 wt% of epoxy acrylate, 1-35wt% of urethane acrylate, 20-50wt% of polyfunctional acrylate monomer, 1-15wt% of additive and 1-10wt% of photoinitiator. The coating formed by ultraviolet curing coating obtained by adopting the technical scheme has the advantages of good pollution resistibility, easy cleaning, high strength, strong adherence, high toughness and difficult stripping.

The invention discloses an organic silicone resin, a curable organopolysiloxane composition and an application. A structural formula of the organic silicone resin is shown as formula I. The curable organopolysiloxane composition is obtained by mixing the organic silicone resin with an organic silicone compound having at least two hydrogen atoms bonded with a silicone atom in one molecule. The curable organopolysiloxane composition can be applied on luminescent semiconductor package. The curable organopolysiloxane composition has the following advantages of excellent adhesive property, relatively strong hardness, excellent impact resistance, high transparency, little color change in a heat resistance test and high luminescent efficiency. Besides, the curable organopolysiloxane composition is not easy to peel off in a thermal shock test and presents excellent adhesive power in adhesive experiments with PPA and metal. The formula I is R1R22SiO(R3SiO3/2)a(SiO4/2)b(R42SiO)cOSiR22R1.

The invention relates to an underwater solventless epoxy anti-corrosive coating and a preparation method thereof. The coating contains A component and B component and comprises the following components by weight percent: 20-25% of epoxy resin E-51, 12-17% of epoxy resin E-44, 3-8% of epoxy active diluent, 3.5-5% of plasticizer, 10-16% of talcum powder, 10-15% of sericite powder, 1.0-1.6% of thixotropic agent, 2-4% of titanium dioxide, 0.5-1.0% of coupling agent, 0.5-1.2% of dispersant, 0.5-1.2% of defoaming agent, 0.1-0.5% of carbon black, 12-15% of 1085 curing agent and 5-8% of 810 curing agent; wherein, B component comprises 1085 curing agent and 810 curing agent and the remainder is A component. The preparation method comprises the following steps: separately preparing A component and B component and when using, mixing A component and B component in a weight ratio of 4:1 evenly to obtain the underwater solventless epoxy anti-corrosive coating. The invention has simple process, strong product adhesion, high mechanical strength and corrosion resistance; the coating can be especially used to coat members in water at a low temperature, has fast curing rate and good flexibility of coating film, and is hard to peel, thus being applicable to the protection of steel structures such as gates of hydroelectric power stations, sediment bottom sluices and the like and concrete structures.

The invention discloses and provides a roasting sagger for a circulating type lithium battery anode material, which is simple in manufacturing process and structure, does not easily react with a lithium battery material, can avoid polluting the lithium battery material, does not pollute the environment and can be recycled, and a preparation method thereof. The preparation method of the roasting sagger for the circulating type lithium battery anode material comprises the following steps of: (1) uniformly mixing mullite, cordierite, aluminum oxide, corundum, kaolin, active magnesium oxide, spodumene and a bonding agent; adding the materials into a metal mould according to the weight; and pressing and molding a blank by pressing and molding equipment; (2) uniformly mixing zirconium oxide, the spodumene, cerium oxide, the corundum and the bonding agent; uniformly distributing the materials on the surface of the blank by a material distribution machine or manpower and pressing again by the pressing and molding equipment to obtain a semi-finished sagger product; and (3) drying the sagger semi-finished product and sintering. The roasting sagger disclosed by the invention can be widely applied to the field of the sagger for the lithium battery anode material.

The production process of soft magnetic Fe-Si-Al powder core includes the steps of compounding magnetic powder in different sizes, surface treatment, mixing magnetic powder, insulating agent, adhesive and demolding agent, molding, curing, magnetic heat treatment, soaking and surface coating. The present invention has the advantages of: breaking strength after curing in radial direction of 7-12 kg, less surface stripping, small demolding force, final breaking strength in radial direction of 17-24 kg, no influence of the insulating lacquer on electromagnetic performance and capability of realizing automatic production.

The invention belongs to the field of powder paints and particularly relates to a self-cleaning super-weather-proof powder paint. The self-cleaning super-weather-proof powder paint comprises a carboxyl-terminated polyester particle system and a fluorocarbon resin particle system in a weight part ratio of 4:1-1:4, wherein the fluorocarbon resin particle system contains TiO2 nano-particles. As carboxyl-terminated polyester is introduced into a pure fluorocarbon paint, the phase separation occurs in a solidification process, and the fluorocarbon resin floats up to the surface of a coating to serve as coating protection and ageing resistance; the carboxyl-terminated polyester and the like and a substrate can be well wetted, so that the coating and the substrate can be well adhered and can hardly crack and spall; as the TiO2 nano-particles only exist in a fluorocarbon phase, the resin on a bottom layer cannot be broken, and the excellent stability of the system is guaranteed; and the TiO2 nano-particles are scattered in a dry blending manner, and the complex preprocessing is avoided, so that the preprocessing process can be greatly shortened, the cost is lowered, and the efficiency is improved.

The invention provides an electromagnetic shielding heat-dissipation film and a manufacturing method thereof. The electromagnetic shielding heat-dissipation film comprises a heat-dissipation film layer, a shielding film layer and a wave-absorbing film layer, wherein the heat-dissipation film layer is a synthetic graphite film, the shielding film layer is a metal film, and the wave-absorbing film layer is an organic binder film mixed with soft magnetic material powders. The method for manufacturing the electromagnetic shielding heat-dissipation film comprises the following steps: 1) attaching a heat-dissipation film to a smooth high-temperature-resistant film layer to form the heat-dissipation film layer; 2) depositing the metal film onto the surface of heat-dissipation film through a gas phase method or a liquid phase method or the combination of the two to form the shielding film layer; 3) coating organic binder mixed with the soft magnetic material powders onto the surface, wherein the metal film heat-dissipation film are deposited, and carrying out solidification under the function of high temperature or a catalyst; and 4) stripping the high-temperature-resistant film layer on the surface of the heat-dissipation film to obtain the electromagnetic shielding heat-dissipation film.

Disclosed is a membrane for a fuel cell, which comprises: a polymer electrolyte membrane which comprises a cross-linked anion-exchange resin having a strongly basic anion-exchange group such as a quaternary ammonium salt group, a quaternary pyridinium salt group and a quaternary imidazolium salt group; and a polymer which is attached on at least one surface of the polymer electrolyte membrane and has a weakly acidic group such as a polyacrylic acid. Also disclosed is a method for producing the membrane.

The invention provides a conductive fabric and a preparation method thereof. The conductive fabric comprises, from inside to outside, an adhesive force improving layer attached to the surface layer ofa fabric substrate, a liquid metal layer, an oxygen isolation protective layer and a packaging protective layer. The preparation method comprises: applying the adhesive force improving layer to the surface layer of a fabric substrate, coating the adhesive force improving layer with the liquid metal layer, coating the liquid metal layer with the oxygen isolation protective layer, and coating the oxygen isolation protective layer with the packaging protective layer. The coating manner includes spraying, brush coating, flow coating or printing. Compared with a conductive fabric in the prior art,the conductive fabric is excellent in conductivity, fold resistance, laundering durability and tensile property. The preparation method is simple and reliable.

The invention discloses conductive graphite cream and a preparation method thereof, which solve the technical problem of improving dispersibility of graphite cream. The conductive graphite cream comprises materials including, in weight percent, 10-30% of conductive graphite, 1-30% of matrix resin, 0.1-5% of conductive polymer auxiliaries, 0.1-5% of dispersing auxiliaries and the balance solvents. The preparation method includes the steps: adding the conductive polymer auxiliaries into the solvents to obtain solution 1; adding the matrix resin into the solvents to obtain solution 2; adding the conductive graphite into the solution 2; adding the dispersing auxiliaries into the solution 2 for ball-milling; adding the solution 1 into solution 3; and performing ultrasonic oscillation, high-pressure dispersion and stirring to obtain the conductive graphite cream. Compared with the prior art, the conductive graphite cream and the preparation method have the advantages that nano carbon materials are added, ball-milling, ultrasonic oscillation and high-pressure dispersion are performed for assisting so that the conductive graphite cream is uniformly dispersed, and the preparation method is simple and low-cost.

A threaded joint for steel pipes comprises a pin (1) and a box (2) each having a threaded portion (3a or 3b) and an unthreaded metal-to-metal contact portion (4a or 4b) as contact surfaces which contact each other when the joint is fastened. The contact surfaces (3a and 4a and/or 3b and 4b) of at least one of the pin (1) and the box (2) are coated with a lower layer of a solid lubricating coating containing a solid lubricating powder (e.g., molybdenum disulfide, tungsten disulfide, or graphite) and a binder (e.g., an epoxy or other organic resin) and an upper layer of a solid corrosion protective coating formed by an organic resin which does not contain solid particles.

A copper-clad board suitable for making a hole with a carbon dioxide gas laser, which copper-clad board is obtained by disposing a double-side-treated copper foil provided with a metallic-treatment layer having a high absorption rate of a carbon dioxide gas laser energy on at least one surface, at least on an outer layer of a thermosetting resin composition layer such that the metallic-treatment layer is formed on a shiny surface of the copper foil which shiny surface is to be a surface layer, and laminate-forming the double-side-treated copper foil and the thermosetting resin composition layer under heat and pressure, to make an alloy of the metallic-treatment layer and the copper by the above heating, a method of making hole in the above copper-clad board and a printed wiring board comprising the above copper-clad board.

The invention provides a two-component urethane resin adhesive for a polymer lithium ion battery flexible package film, and aims to provide an adhesive which has the advantages of high bonding strength, stripping resistance, excellent barrier property, impact resistance, high bonding compatibility with a nonmetallic film or an aluminum foil, resistance to swelling, dissolving, permeation and absorption of electrolyte organic solvents and high-volatility substances, resistance to strong acid and strong alkali and difficulty in breaking a molecular chain after becoming dry and hard. The two-component urethane resin adhesive consists of components, wherein a first component (A) is an emulsion waterborne Poly Urethane (PU) performed polymer which is obtained by compounding polyester and isocyanate/benzene ring-containing polyether in the mass ratio 75/25-55/45 and adding an aid for reacting; a second component (B) is a composition consisting of glycidyl ether epoxy resin with the epoxy resin 0.25-0.45 and a melamine-formaldehyde resin additional crosslinking agent; the weight ratio of the first component to the second component is 10/1-10/2; and a certain amount of additional crosslinking agent is added into a PU emulsion in a certain mass ratio.

The present invention provides a hot press formed product being improved in corrosion resistance and in the adhesion of a coating film, which is produced by subjecting a zinc-based metal plated steel product to a hot press forming, and has a zinc-based metal plating layer containing and, formed thereon, a zinc oxide layer, wherein the uppermost zinc oxide layer has an average thickness of 2 mum or less; and a hot press formed product being excellent in corrosion resistance, the adhesion of a coating film, the resistance to corrosion after coating, and weldability, which has a basis steel plate (1) and, formed thereon, a layer (2) consisting essentially of an iron-zinc solid solution phase and, as the uppermost layer, a zinc oxide layer (3) having an average thickness of 5 mum or less, and has substantially no iron-zinc intermetallic compound phase, wherein the iron-zinc solid solution layer (2) and the zinc oxide layer (3) contain Al in a total amount of 0.5 g/m<2> or less and/or contain Al oxides in a total amount of 5 mg/m<2> or less in terms of Al.

The invention discloses a low-pressure high-flux chlorine-containing polymer nanofiltration membrane with a stable separation layer and a preparation method thereof. The nanofiltration membrane comprises a macroporous support layer and a dense function layer, wherein the macroporous support layer and the dense function layer are connected with each other by virtue of a C-N bond; the dense function layer is made of a positive, charged or amphoteric ionic cross-linking polyamine compound; the macroporous support layer is made of a chlorine-containing polymer. The preparation method of the filtration membrane comprises the following steps: firstly coating the surface of a chlorine-containing polymer ultrafiltration membrane with the polyamine compound, carrying out heat treatment, washing the ultrafiltration membrane, then dipping the ultrafiltration membrane in a mixed solution of a cross-linking agent and a charge reagent and carrying out heat treatment again. The membrane flux of the prepared polymer nanofiltration membrane can reach 60L/m<2>.h under the pressure of 0.3MPa; the retention rate on micromolecule dye and high-valence inorganic salt can reach 90%; the chlorine-containing polymer nanofiltration membrane can be in a flat fiber ultrafiltration membrane form or a hollow fiber ultrafiltration membrane form, and has good practical prospect.

A corrosion resistant coating for gas turbine engine includes a glassy ceramic matrix wherein the glassy matrix is silica-based, and includes corrosion resistant particles selected from refractory particles and non-refractory MCrAlX particles, and combinations thereof. The corrosion resistant particles are substantially uniformly distributed within the matrix, and provide the coating with corrosion resistance. Importantly the coating of the present invention has a coefficient of thermal expansion (CTE) greater than that of alumina at engine operating temperatures. The CTE of the coating is sufficiently close to the substrate material such that the coating does not spall after frequent engine cycling at temperatures above 1200° F.