41results about How to "Improve interface bonding" patented technology

The invention discloses a glass fiber impregnating agent for a transparent plate, which basically comprises the following components in percentage by weight: 0.15-1.0 percent of silane coupling agent, 3.0-20.0 percent of binding agent, 0.02-1.0 percent of lubricating agent, 0.05-0.8 percent of antistatic agent, 0.1-2 percent of pH value adjusting agent and the balance of deionized water, wherein the binding agent is epoxy-ester emulsion or a mixture of PVAc emulsion and the epoxy-ester emulsion, and the contents of the PVAc emulsion and the epoxy-ester emulsion are calculated by respective solid content. The invention adopting the epoxy-ester emulsion or the mixture of the PVAc emulsion and the epoxy-ester emulsion as the binding agent can improve the glass fiber impregnating speed and the production efficiency; in addition, the light refractive rates of the impregnating agent and matrix resin are close, and the transmittance of the produced plate is high.

The invention discloses a chopped glass fiber sizing agent for reinforcing thermosetting resin, which is prepared by the components by weight percent: (1) 0.2-1.5% of coupling agent; (2) 3.0-20.0% of binding agent that is cross-linked polyurethane emulsion or the mixture of the cross-linked polyurethane emulsion and medium and high molecular weight epoxy emulsion, wherein the contents of the cross-linked polyurethane emulsion and the medium and high molecular weight elastic epoxy ester emulsion are based on the respective solid content; (3) 0.0-1.2% of lubricating agent; (4) 0.05-0.8% of antistatic agent; (5) 0.1-2% of pH value conditioning agent; and (6) the balance of deionized water, wherein the total weight of all the components is 100%. The chopped glass fiber sizing agent improves the bundling property of chopped glass fiber, reduces the broken filament, improves the mixing uniformity and the fluidity of the glass fiber and the BMC resin paste, and improves the mechanical strength and the appearance performance of BMC products.

The invention discloses a metal-matrix composite ceramic liner plate. Zirconia aluminum oxide, high chromium iron powder and iron powder are electrically smelted and injected into a metal-matrix ceramic reinforcement with a plurality of communicated plug holes to form the metal-matrix composite ceramic liner plate; the upper and lower end faces of the metal-matrix ceramic reinforcement are provided with communicated plug holes, and four side faces of the metal-matrix ceramic reinforcement are provided with communicated grooves; after different reinforcements are spliced, grooves on edges of two adjacent reinforcements form complete plug holes, a metal liquid is poured into the plug holes and can infiltrate among ceramic particles of the reinforcements through the plug holes and uniformly coat the ceramic particles, so that a ceramic phase and a metal phase are uniformly distributed. Therefore, the toughness and wear resistance of the finished ceramic products are enhanced, and the thermal shock resistance of the finished ceramic products is improved.

The invention discloses a recycled composite material for enhancing modified waste polypropylene by using a waste printed circuit board powder/glass fiber and a preparation method of the recycled composite material. The recycled composite material comprises the following raw materials in part by weight: 100 parts of waste polypropylene, 100-300 parts of waste printed circuit board powder, 5-15 parts of compatibilizer, 1-2 parts of antioxidant and 5-15 parts of alkali-free glass fiber. The preparation method comprises the following steps: mixing the waste polypropylene, the waste printed circuit board powder, the compatibilizer and the antioxidant according to a proportion; adding a blending material from a main feeding device of a double-screw extruder for smelting, wherein the rotating speed of a screw is 60 r/min; and adding the alkali-free glass fiber from a fourth processing area of the extruder according to a proportion and blending the alkali-free glass fiber with the smelt mixture; and carrying out extrusion, traction, cooling and particle dicing to obtain the recycled composite material of the modified waste polypropylene. According to the recycled material disclosed by the invention, the waste polypropylene can be effectively enhanced and toughened and the recycled composite material with excellent integrated performance is obtained; and in addition, the waste is fully utilized and energy economization and emission reduction are realized.

The present invention discloses a functional polyolefine/montmorillonite nano composite material and its preparation method. Said method includes the following steps: intercalating olefin hydrocarbon polymerization catalyst into interlamination of montmorillonite, introducing olefin hydrocarbon monomer and reactive comonomer and making them implement copolymerization in interlamination of montrorillonite, then utilizing functionalization reaction to convert the reactive group into polar group so as to make the polar group be grafted on the polyolefine macromolecular chain. The polyolefine molecular chain in said functional polyolefine/montrorillonite nano composite material contains polar group, so that the mutual action of said polyolefine and montrorillonite can be greatly raised, the montrorillonite flake layers are uniformly dispersed in the polyolefine base body so as to form the polyolefine/montrorillonite nano composite material with stable structure.

The invention discloses an infiltration agent of chopped glass fiber for reinforcing cement. The infiltration agent comprises the following components by weight percent: (1) 0.2-1.5% of coupling agent which is combination of 3-amino propionic triethoxy silane and 3-methacryloyloxyethyl propyl trimethoxysilane; (2) 3.0-30.0% of a film-forming agent, which is crosslinked polyacrylic dispersion or combination of crosslinked polyacrylic acid dispersion and a bisphenol A epoxy emulsion with medium-high molecular weight, wherein the molecular weight of the epoxy resin in the bisphenol A epoxy emulsion with medium-high molecular weight is 1200-6000; (3) 0.01-2.0% of a nonionic lubricant; (4) 0.05-1.0% of organic antistatic agent; (5) 0.1-2% of pH value modifier; (6) 63.5-96.64% of deionized water. A glass fiber yarn produced by using the infiltration agent has the advantages of being good in bundling property, easy to chop, and resistant to alkaline corrosion of cement, the produced cement product is high in mechanical strength, and the product is bright and clean in appearance.

The invention provides a preparation method of a carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption, relates to the manufacturing of an alloy with open or closed pores, and specifically relates to the preparation method of the carbon nanotube reinforced foamed aluminum composite material for vibration attenuation and energy absorption with urea as a pore-forming agent and nickel as a carbon nanotube synthesis catalyst; the preparation method comprises the following steps: preparing the mixed powder of nickel nitrate, urea and aluminum powder; preparing a foamed aluminum blank; and preparing the carbon nanotube reinforced foamed aluminum composite material. The method is used for overcoming the defects of structural defect, low mechanical properties and low buffer energy-absorption property, large density and no lightweight property of the foamed aluminum materials prepared in the prior art, complex preparation process, relatively high cost and difficult realization of functional structure integration of the foamed aluminum serving as an energy-absorption material.

The invention relates to a high-strength and high-toughness polyphenylene sulfide composite material and a preparation method thereof. The composite material is prepared from the following raw materials in percentages by weight: 5 to 50% of polyphenylene sulfide resin, 5 to 50% of super-toughened nylon, 5 to 20% of a compatibilizing agent, 30 to 45% of glass fiber, 0 to 1% of an antioxidant, 0 to 1% of a light stabilizer and 0 to 1% of a lubricant. The preparation method for the polyphenylene sulfide composite material comprises the following steps: adding all components except the glass fiber into a high-speed mixer, carrying out dispersion mixing, then adding the obtained mixture into a double screw extruder, introducing the glass fiber into an extruder from a fiber inlet of the extruder, and carrying out mixing granulation so as to obtain the polyphenylene sulfide composite material. The polyphenylene sulfide composite material prepared by using the method provided by the invention has high strength, high toughness and extensive application range, and is especially applicable to preparation of bottom poles and sheaths of frame tent supports.

The invention discloses a foam sandwich composite material for an aviation dining car and a preparation method of the foam sandwich composite material. The preparation method of the foam sandwich composite material mainly comprises the steps of preparation before laminating, reinforcing material laminating, glue injection system arranging, vacuum system arranging, air tightness inspecting, resin pouring and solidification demolding. According to the preparation method, holes and grooves are formed in foam cores of reinforcing material laminating layers, and the holes and the grooves communicate with one another; and after vacuumizing is conducted, resin is poured, and complete wetting of the reinforcing material laminating layers is ensured. The prepared composite material is stable in quality, high in production efficiency, low in cost, small in pollution, good in strength and interference bonding performance, and long in service life.

The invention discloses a glass fiber impregnating compound which is prepared from, by weight, 0.02-3.00% of a coupling agent, 3.00-30.00% of a film forming agent, 0.02-2.00% of a lubricating agent, 0.02-0.80% of an antistatic agent, 0.01-2.00% of a pH adjusting agent and deionized water. The film forming agent is prepared by mixing nanosilicon dioxide modified polyester emulsion, PVAc emulsion and polyurethane modified epoxy emulsion, and the content of the nanosilicon dioxide modified polyester emulsion is not smaller than that of the polyurethane modified epoxy emulsion. The invention further provides application of the glass fiber impregnating compound in producing twistless roving. The twistless roving produced through the impregnating compound is high in permeating speed, good in choppability, good in production smoothness and good in compatibility with enhanced resin, production efficiency and the mechanical strength of a produced composite product are greatly improved, and the glass fiber impregnating compound is applicable to an injection process or a centrifugal casting molding process.

The invention discloses a structure-enhanced SMC (Sheet Moulding Compound) glass fibre impregnating agent and application thereof in production of twistless roving. The impregnating agent is preparedfrom the following components: a coupling agent, a film forming agent, a lubricating agent, a pH value regulator and water, wherein the coupling agent is a silane coupling agent; the film forming agent is a mixture of non-cross-linked bisphenol A type polyester emulsion, cross-linked unsaturated polyester emulsion and medium-and-high molecular weight bisphenol A type epoxy emulsion. The inventionprovides the application of the impregnating agent in the production of twistless glass fibre roving for a structure-enhanced SMC sheet. The twistless glass fibre roving produced by using the impregnating agent has the advantages of low hairiness, high impregnation speed, high choppability, high production smoothness and high compatibility with enhanced resin, can greatly improve the mechanical strength of a glass fibre enhanced composite material product, and is suitable for an SMC moulding process.

The invention provides a flexible display panel, a manufacturing method thereof and a flexible display device. The flexible display panel comprises a first flexible substrate, an organic light emitting device and a second flexible substrate, wherein the organic light emitting device is arranged between the first flexible substrate and the second flexible substrate. The flexible display panel is characterized in that the first flexible substrate and/or the second flexible substrate is prepared from an acrylic material or an epoxy material and a plasticizing copolymerization monomer via copolymerization reaction, and the plasticizing copolymerization monomer is a nano-scale inorganic material. The plasticizing copolymerization monomer such as nano silicon nitride forms certain copolymerization modification with the acrylic material or the epoxy material, so that the abrasion resisting effect is enabled to be more obvious. Meanwhile, the inorganic nano silicon nitride can enhance the hardness of a hard coating film, the thickness of the hard coating film is reduced, and the bending performance of the flexible display panel is improved.

The invention discloses novel bendable concrete. The novel bendable concrete is prepared from the following raw materials in parts by mass: 50 to 100 parts of cement, 20 to 40 parts of gelatin powder, 15 to 30 parts of glass fibers, 10 to 20 parts of nylon fibers, 20 to 40 parts of silicon powder, 5 to 10 parts of carboxylated styrene-butadiene latex, 60 to 90 parts of sand, 3 to 8 parts of a water reducing agent and 50 to 80 parts of water. The novel bendable concrete disclosed by the invention has the characteristics of good strength, low elastic modulus, good flexibility and ductility, good heat-preservation and heat-insulation effect, good crack resistance and anti-impact strength and the like.

The invention discloses a lightweight high-strength refractory castable which comprises the following raw materials in percentage by weight: 25-35% of lightweight high-strength microporous alumina aggregate, 25-35% of alumina hollow spheres, 3-5% of floating beads, 5-8% of kyanite powder, 5-8% of calcined bauxite fine powder, 5-8% of silica powder, 6-9% of alpha-Al2O3 micro powder, 5-10% of alumina cement, 3-5% of refractory fibers, 0.1-0.3% of a composite water reducing agent and 0.02-0.05% of a water-based silicon polyether defoaming agent. The refractory castable can effectively reduce the water-cooling heat loss of a high-temperature water-cooling furnace roller of a thin slab continuous casting and rolling tunnel type heating furnace, improve the heat efficiency of the heating furnace and prolong the service life of a heat insulation layer of the furnace roller, and has the characteristics of stable performance, light volume weight, good mechanical property and excellent heat insulation performance and thermal shock resistance stability.

The invention provides a polyamide (PA) composition, belonging to the field of PA. The PA composition is used for solving the problems of the existing PA/ABS (Acrylonitrile-Butadiene-Styrene copolymer) alloy products that strength and toughness can not be improved simultaneously. The PA composition contains the following ingredients in percentage by weight: 55-65% of PA, 5-10% of functionalized ABS toughening agent and 25-40% of glass fibers. According to the PA composition, in the functionalized ABS toughening agent, a rubber phase and the glass fibers are dispersed into PA matrix resin, and GMA (Glycidyl Methacrylate) in functionalized ABS can react with terminal groups in PA, so that the interfacial adhesion force is increased, the interfacial adhesion for the glass fibers and a PA matrix is promoted, and the interfacial adhesion force of the glass fibers is increased, thus the prepared PA composition has relatively high strength and toughness. The PA composition provided by the invention has the advantages that the impact strength is not lower than 120J/m, the elongation at break is not lower than 3%, the tensile strength is not lower than 85MPa, and the bending strength is not lower than 5.5GPa.

The invention discloses a porosity-controllable copper-based wide-temperature-range liquid-solid synergistic self-lubricating composite material and a preparation method thereof. The copper-based wide-temperature-range liquid-solid synergistic self-lubricating composite material is obtained by processing components including a copper alloy matrix, a solid lubricant, a liquid lubricant and the like. According to the method, nickel nitrate has a high decomposition temperature, firstly, FeS is subjected to nickel nitrate coating treatment and in-situ reaction in green body sintering to generate nickel-coated FeS, bonding of FeS and a copper alloy matrix is improved, high-temperature continuous reaction in the material sintering process can be met, gas is generated, uniform through holes are formed in the material, and the through holes are uniformly formed in the material; the porosity of the material can be regulated and controlled, the oil storage capacity can be improved, and the through holes are more beneficial to conveying lubricating oil to a friction interface so as to achieve better lubricating and antifriction effects. According to the method, the service conditions of the copper-based composite material are greatly widened, and a new scheme and thought are provided for research and development of a novel controllable-porosity copper-based wide-temperature-range liquid-solid synergistic self-lubricating composite material.

The invention discloses an anti-slip wear-resistant modification method for lightweight rubber shoes. The anti-slip wear-resistant modification method includes the steps that epoxy resin E51 and imidazole are mixed, acetone is added, stirring and dissolving are conducted, then surface-pretreated aramid short fibers are added, after infiltration, an acetone solution and part of cured epoxy resin are dried in an oven, and coated aramid short fibers are obtained; ethylene glycol and sodium tripolyphosphate are added into deionized water, even stirring is conducted, then pretreated modified coal ash and modified nano-calcium carbonate are added, and through high-speed dispersion wed modification, modified anti-slip aggregates are obtained; and nylon 6 is dried in an air dry oven, put into a rheometer to be molten, fully pretreated and plasticized, a rubber compound, the coated aramid short fibers and the modified anti-slip aggregates are added to be evenly mixed, during addition and discharging, nitrogen is introduced for protection, and then the lightweight rubber shoes are manufactured according to a conventional production method.