33results about How to "Retain corrosion resistance" patented technology

The invention discloses a gradient nano-coating used for a thermal barrier coating anti-corrosion function and a preparation method thereof. A substrate is steeped and lifted in pure sol and mixed sol of yttria stabilization zirconia (YSZ) and Al 2O3. A gradient coating structure with proportion of the YSZ and the Al2O3 changed from inside to outside is obtained in a prepared mode. The gradient nano-coating is composed of particles with the particle diameter of 10 to 100nm. The total thickness of the coating is 0.5 to 5 micrometers. According to the novel gradient coating structure, the facts that anti-corrosion property of the Al2O3 is kept and meanwhile a phenomenon of coating exfoliation due to difference of thermal expansion coefficients between the YSZ and the Al2O3 materials is overcome are hopeful to be achieved, the gradient nano-coating structure is prepared through a mixed sol steeping and lifting method, and then high temperature roasting is conducted. A composition weight ratio of the YSZ to the Al2O3 in the mixed sol changes between 9 to 1 and 1 to 9. The particles contained by the YSZ sol are in a monoclinic crystal shape. Temperature of the high temperature roasting is 500 to 800 DEG C. The preparation method is simple and convenient to achieve, and practical. The coating prepared is even in structure.

The invention relates to a ternary polymerization polytetrafluoroethylene resin which is formed by copolymerizing tetrafluoroethylene, fluorine-containing olefin and perfluor (alkyl vinyl ether) and also relates to a preparation method and concentrated dispersion liquid of the ternary polymerization polytetrafluoroethylene resin. On the basis that the original characteristics of the polytetrafluoroethylene resin are kept, the provided ternary polymerization polytetrafluoroethylene resin can be processed to form products with various specifications and shapes through melting, so that the application range of the polytetrafluoroethylene resin is widened; the provided concentrated dispersion liquid of the polytetrafluoroethylene can fully cover the surface of a base material during film coating, and the light-transmitting performance and the glossiness of the coated film are improved; and by the provided preparation method, the production cost is reduced, environment pollution is reduced, the reaction conditions are mild, and high safety can be achieved.

The invention provides a thermally-conductive far-infrared synergistic non-stick coating. The thermally-conductive far-infrared synergistic non-stick coating is a special coating using aqueous dispersion resin formed by mutual modification of a nanometer oxide gel and an organic fluororesin emulsion as a film forming matrix, and plasticized high-performance resin micropowder for modification, functional thermal-conductive exothermic synergistic filler, a tinting pigment and a coating additive as auxiliary components. After the coating of the invention is modified by graphene, the coating retains the original high temperature resistance, weather resistance and strong-corrosion resistance, and is endowed with the new functional characteristics of thermal stability, thermal balance, high hardness, high toughness, wear resistance, scratch resistance, wettability, no adhesion and the like; and nanometer negative ion powder releases far-infrared electromagnetic waves under the excitation ofheat (so thermal conductivity is good), and generates small-molecular-group water which permeates the cell membranes of cooked rice grains, so starch structures inside the cooked rice grains absorb water and become bulky and flexible, which improves the palatability of cooked rice.

The invention provides a method for preparing a metal composite plate by using as-cast blanks. The metal composite plate comprises a multi-layer metal, base-layer carbon steel or alloy steel, a bonding agent and a mixed activated adsorbing agent, wherein the bonding surfaces of the multi-layer metal and the base-layer metal are subjected to rust removal, passivation and chemical cleaning, the bonding agent is added to the bonding surfaces of the base plate and the compound plate, the mixed adsorbing agent is added to the peripheries of the bonding surfaces, before rolling, heating is conductedtwo times under atmosphere protection, so that air, water vapor and the like on the bonding surfaces are removed or adsorbed by the mixed activated adsorbing agent, the bonding agent is melted to make the bonding surfaces sealed, and oxidation is avoided. The method for preparing the metal composite plate by using the as-cast blanks can effectively solve the problems that a conventional preparation method for the compound plate is long in assembling period, high in cost and the like, a vacuum extraction equipment is omitted, and the production cost is reduced.

The invention discloses an anti-aging and permanent-compression-deformation-resistant rubber material. The rubber material comprises the following components in parts by weight: 30-50 parts of ethylene propylene diene monomer, 20-30 parts of modified ethylene propylene diene monomer, 0.8-1.5 parts of dicumyl peroxide, 1.5-2 parts of maleimide vulcanizing aids, 0.5-1.5 part of a vulcanizing agent BIBP, 2-4 parts of magnesium oxide, 2-5 parts of trioctyl trimellitate, 0.5-1.2 parts of paraffin, 20-30 parts of magnesium hydroxide, 5-8 parts of red phosphorus, 20-25 parts of superfine active clay, 15-20 parts of ultra-fine powder, 10- 20 parts of kaolin and 1-1.8 parts of an anti-aging agent RD, wherein the modified ethylene propylene diene monomer is acrylonitrile-grafted ethylene propylene diene monomer. The rubber material disclosed by the invention has the advantages of excellent anti-aging performance and good resistance to permanent compression deformation.

The invention discloses an epoxy orange peel antiskid floor paint and a preparation method thereof, and belongs to the technical field of paints. The floor paint comprises, by weight, 30-50 parts of epoxy resin, 20-40 parts of dolomite powder, 5-10 parts of talcum powder, 1-3 parts of white carbon black, 0.3-1 part of a dispersant, 0.5-2 parts of an antifoaming agent, 0.5-1 part of a rheological modifier, and 10-20 parts of a curing agent. The epoxy orange peel antiskid floor paint not only retains the characteristics of toughness, wear resistance, corrosion resistance and the like of common epoxy floor paints, but also has antiskid and beautiful decorative effects, and has very good constructability.

The invention discloses a nanometer hybridized ceramic resin coating as well as a preparation method and an application of the nanometer hybridized ceramic resin coating and belongs to the technical field of chemical industry of coatings. By adopting the coating disclosed by the invention, not only are the original high temperature resistance, corrosion resistance, weather resistance and ageing resistance retained, but also the brittleness problem of the coating is solved, and the nanometer hybridized ceramic resin coating has the characteristics such as high hardness, high toughness, wear resistance, scratch resistance, no infiltration, inadhesion and no scale formation. Different coating varieties can be prepared by selecting film forming matrix materials with different structures according to different working environments and construction conditions, and proved by a contrast test, an endurance test and overall performance detection, the nanometer hybridized ceramic resin coating disclosed by the invention far exceeds like products on the current market.

The embodiment of the invention discloses a nano-zinc oxide modified composite plate and a preparation process of the nano-zinc oxide modified composite plate. The tensile strength and the impact strength of polyvinyl chloride sheets in practical application can be effectively improved, the surface smoothness of the sheets is improved, and the heat stability and anti-aging performance of the sheets can be increased. In the embodiment of the invention, the nano-zinc oxide modified composite plate is formed by compounding three layers including a PMMA layer, a nano-zinc oxide modified layer and a PMMA layer from top to bottom respectively, wherein a nano-zinc oxide modified layer contains nano-zinc oxide and polyvinyl chloride. The nano-zinc oxide modified composite plate is high in tensile strength, high in impact strength, high in smooth finish, high in heat stability and high in aging resistance.

The invention relates to the technical field of corrugated paper, in particular to composite corrugated paper and a preparation method thereof. The composite corrugated paper comprises first surface paper, an antibacterial layer, a reinforcing layer, corrugated core paper, a fiber layer, a waterproof layer and second surface paper which are sequentially attached, and the upper surface of the reinforcing layer and the lower surface of the fiber layer are each coated with a composite adhesive layer. A composite adhesive is prepared from the following raw materials in parts by weight: 10-20 partsof modified alkyd resin, 0.1-2.0 parts of azo initiator, 1-5 parts of phenolic compound, 10-15 parts of deionized water, 1-5 parts of polyvinyl alcohol, 10-20 parts of rice hull fiber, 20-30 parts ofepoxy resin, 1-3 parts of nano SiO2, 8-12 parts of chitosan, 1-5 parts of plasticizer, 0.1-3.0 parts of curing agent, 0.1-3.0 parts of antioxidant, 0.1-1.0 part of citric acid, 1-5 parts of a fillerand 15-25 part of starch. The composite corrugated paper provided by the invention has good strength and mildew-proof and antibacterial effects, and is long in service life.

The invention belongs to the field of furniture manufacturing, and particularly discloses a wooden door machining method for improving thermal insulation performance. The wooden door machining methodcomprises the following steps of grinding bentonite into powder, performing calcining at a high temperature, grinding together with diatomite to obtain mixed clay, and mixing with aluminum phosphate emulsion and water in proportion to obtain viscose; shearing aluminum silicate ceramic fibers and glass fibers to obtain mixed fiber powder, and then mixing with expanded graphite to obtain a mixed rawmaterial; and processing the viscose and the mixed raw material to obtain a molten feed liquid, performing spinning to obtain composite fiber yarns, preparing a composite thermal insulation board, and compounding the composite thermal insulation board with an external composite board to obtain the required wooden door. According to the wooden door machining method, the bentonite is calcined at the high temperature and mixed with the diatomite, thereby facilitating the intrusion of expanded graphite powder into micropores. The aluminum silicate ceramic fibers and the glass fibers are taken asthe raw materials, so that a good heat preservation effect is achieved. Meanwhile, the raw material is compounded with the aluminum phosphate emulsion, so that the bonding capability of each componentis optimized; a good environmental protection effect is achieved; the thermal insulation effect of each component can be brought into full play; and the thermal insulation performance of a door bodyis improved effectively.

The invention discloses a preparation method of a copper-steel composite material with an authigenic copper-rich layer on a steel surface. The problem about the bonding between the interfaces of a former externally added coating layer and a matrix is solved by means of spontaneously generating a copper-rich coating layer on the surface of a steel matrix. The preparation method comprises the following steps: corroding the surface of copper-containing steel, removing corrosion products, and treating the surface of the copper-steel composite material. According to the method, the copper-steel composite material with the copper-rich outer layer can be obtained without the means of externally adding a coating layer; as the coating layer is spontaneously generated by the matrix, the prepared copper-steel composite material does not have the problem about the bonding between the composite interfaces and the coating layer does not usually peel off; the prepared copper-steel composite material keeps not only the excellent properties such as high strength and good toughness of steel, but also the characteristics such as corrosion resistance and conductivity of copper; besides, the appearance of the composite material is attractive.

The invention provides a phase change hardening stainless steel product. The phase change hardening stainless steel product comprises a 3XX series stainless steel base material and zirconia ceramic powder evenly distributed in the base material. The d90 particle size of the ceramic powder is made to be smaller than 5 micrometers so that the proportion of the ceramic powder can be 0.03 wt%-30 wt%, adjacent crystals of the base material are in a mutual extrusion state, pre-stress is formed in the base material, hardness is improved, the stainless steel product not only can retain the characteristics of corrosion resistance, no magnetism and good ductility of 3xx series stainless steel, but also can have the characteristic of high hardness greater than or equal to HV200, has the advantages of the 3xx series stainless steel and 17-4PH stainless steel, and can be used in an extreme environment. The manufacturing method of the phase change hardening stainless steel product is simple in process, high in yield and easy to implement, stainless steel products of various complex shapes can be conveniently and rapidly manufactured, the application range is wide, and the manufactured phase change hardening stainless steel product has the characteristics of being good in corrosion resistance, good in ductility, free of magnetism, high in hardness and high in abrasion resistance, and can be used in an extreme environment.

The invention discloses an anti-corrosion alloy and a descaling method for derivatives of the anti-corrosion alloy. The method comprises the following steps of S1, pretreatment: removing impurities on the surfaces of the corrosion-resistant alloy and the derivatives thereof; S2, oxide skin crushing: crushing oxide skin on the surfaces of the corrosion-resistant alloy and the derivatives of the corrosion-resistant alloy in a physical mode; S3, surface cleaning: removing the impurities on the surfaces of the corrosion-resistant alloy and the derivatives of the corrosion-resistant alloy treated in the step S2; and S4, local electrolysis descaling: conducting electrolysis descaling on the surfaces, needing descaling, of the corrosion-resistant alloy and the derivatives of the corrosion-resistant alloy by adopting a local electrolysis device. According to the descaling method for the corrosion-resistant alloy and the derivatives thereof, on the premise that the performance of the corrosion-resistant alloy and the derivatives thereof is not affected, oxide skin on the surfaces of the corrosion-resistant alloy and the derivatives thereof and a chromium-poor layer below the oxide skin can be rapidly and efficiently cleaned, so that the surface quality of the corrosion-resistant alloy and the derivatives thereof is better, and the consumption cost in the cleaning process is lower.

The invention relates to the technical field of high-temperature materials, and discloses a preparation method of a two-dimensional homogenized corundum mullite high-temperature material, which comprises the following steps: 1, selecting a main material and an auxiliary material: 2, respectively preparing a component A and a component B; 3, blending A and B according to the proportion and fully mixing; step 4, molding the mixed mixture; (5) calcining the formed mixture; and 6, cooling to obtain a finished product. A fine-ground high-aluminum material mainly forming a corundum phase serves as a substrate of a two-dimensional homogenized material, a fine-ground low-aluminum material mainly forming a mullite phase is added, and the two-dimensional homogenized material with the corundum phase serving as a surface and the mullite phase serving as a point structure is formed through mechanical uniform mixing, forming and sintering. The structure is similar to a long-range ordered and short-range disordered quasi-crystal structure of glass.