456results about How to "Large-scale industrial production" patented technology

The invention discloses a polyquaternium polymer emulsion antibacterial agent, a preparation method thereof and an application thereof. The polyquaternium polymer emulsion antibacterial agent comprises the following raw material components in parts by weight: 0.3-3 parts of cationic antibacterial monomer, 0.3-0.7 part of initiator, 60-80 parts of water, 1-14 parts of hard monomer, 1-17 parts of soft monomer, 0.1-1 part of waterproof functional monomer, 0.1-0.3 part of crosslinking functional monomer and 0.1-0.7 part of adhesion functional monomer. According to the technical scheme of the invention, the soap-free emulsion synthesis technique is adopted, so that no emulsifier is adopted. The water oxygen-rich pollution can be reduced. The obtained polyquaternium polymer emulsion antibacterial agent is strong in antibacterial performance, free of dissolution, and good in durability. The polyquaternium polymer emulsion antibacterial agent can make up the blank in the market and can be widely applied to the antibacterial treatment of fabric antibacterial finishing, automotive metal and plastic decorative materials, floors, ceramic products and home appliances. Meanwhile, the polyquaternium polymer emulsion antibacterial agent can be applied to the antibacterial and preservative treatment of aqueous coatings, inks, adhesives and the like.

The invention relates to a hollow silicon-carbon composite material and a preparation method thereof. According to the hollow silicon-carbon composite material, the silicon-carbon composite material is spherical or ellipsoid secondary particles; the secondary particles have hollow structures, the shell is formed by compounding graphite sheets, a silicon material and amorphous carbon, the silicon material is uniformly adhered on the surface of the graphite sheet and between the graphite sheets, and the surfaces of all the graphite sheets and the silicon material are covered with an amorphous carbon protection layer; and the graphite sheets for forming the secondary particles are randomly oriented to each other. According to the present invention, the silicon-carbon composite material used as the lithium-ion battery negative electrode has electrochemical characteristics of high capacity, high Coulomb efficiency, low expansion and good cycle performance; the lithium-ion battery prepared from the silicon-carbon composite material has characteristics of high volume energy density, low expansion and good cycle performance; and the preparation process has advantages of simpleness, wide raw material source and low cost, and can achieve the industrial application of the silicon-carbon composite material in the lithium battery field.

The invention relates to a carbon fiber surface treatment method. The method comprises that under an atmosphere environment, air is adopted as a carbon fiber surface treatment medium, electroneutral low temperature plasma is emitted by a plasma emitting device for low temperature plasma bombardment to the surface of a moving carbon fiber tow at a speed of 60-150m / h; the ambient temperature of carbon fiber treatment ranges from -10DEG C to 50DEG C; the gap between the carbon fiber and the plasma emitting device is 5-30mm; the ambient humidity of carbon fiber surface treatment is 30-90%; the power of carbon fiber surface treatment ranges from 500 to 800W / tow; and the temperature of carbon fiber surface treatment by low temperature plasma is 30DEG C-100DEG C. The method of the invention can enhance the content of active and polar functional groups on the carbon fiber surface, deepen grooves on the carbon fiber surface, increase the specific surface area, improve the interlaminar shear strength of carbon fiber composite materials, save energy and reduce energy consumption, and is clean and free of pollution.

The invention relates to the field of high-polymer compound materials, and provides a high-thermal conductivity nylon compound material. , which is prepared from the following Raw raw material components include: nylon resin, an enhancing material, a thermal conductivity material and a lubricant, wherein the nylon resin is prepared fromcomprises at least one graphene-containing PA6 resin. The high-thermal conductivity nylon compound material has the following advantages and beneficial effects that the problem of extrusion flying dust caused by small graphene stacking density is solved; graphene in the graphene-containing PA6 resin and a conventional thermal conductivity filler can be organically combined, to generate an unexpected synergistic effect is generated, and so that the technicalbottleneck problem that a conventional thermal conductivity material cannot reach a high thermal conductivity coefficient under awith low loading degree of the thermal conductivity filler is solved; the nylon compound material can be endowed with good thermal conductivity performance by introducing only a small amount of graphene (0.1%-2%) needs to be introduced into a conventional thermal conductivity filler and filledfilling nylon compound material system so that the nylon compound material can be endowed with good thermal conductivity performance, compared with using graphene powder directly, the high-thermal conductivity nylon compound material has the advantages that the adding amount of the graphene is effectively reduced, the production cost is greatly reduced, and large-scale industrial production is feasible.

The invention discloses a rigid polyurethane-aerogel silicon dioxide composite foam plastic which is prepared by foaming the following raw materials: polyether / polyester polyol, a composite catalyst, a foam stabilizer, water, a mixed foaming agent, polyisocyanate and a hydroxy silicon dioxide aerogel solution. The rigid polyurethane-aerogel silicon dioxide composite foam plastic disclosed by the invention is simple in process, can be subjected to large-scale industrialized production and enhances the mechanical strength and heat-insulating property of foams and can be suitable for an extreme ultralow temperature environment by adding hydroxy silicon dioxide aerogel resin.

The invention relates to the technical field of nanometer materials, in particular to a method for preparing a metal hydroxide multi-stage structure through an MOF derivative bimetallic oxide template. Alkali treatment is conducted on the MOF derivative bimetallic oxide template to obtain the metal hydroxide multi-stage structure, M is set into metal in the metal hydroxide multi-stage structure, the MOF derivative bimetallic oxide template is set into MMoO4-MOF derivative bimetallic oxide, and the metal hydroxide multi-stage structure is M(OH)x. The method is simple, mold and universal in preparing process, has no special requirements for equipment, does not use surfactants, and can conduct large-scale industrial production; the metal hydroxide multi-stage structure prepared through the method is uniform in size, stable in structure and even in component distribution and has excellent OER performance and constant-current stability.

The invention relates to the technical field of a gear box cover, and in particular relates to a zinc-aluminum alloy gear box cover and a preparation process thereof. The gear box cover is made of a zinc-aluminum alloy material, wherein the zinc-aluminum alloy material consists of the following chemical components by mass percent: 94.5 to 96.5 percent of zinc, 3 to 5 percent of aluminum, 0.02 to 0.04 percent of magnesium, 0.4 to 0.6 percent of copper, 0.006 to 0.009 percent of iron, 0.002 to 0.004 percent of impurity lead, 0.0005 to 0.0015 percent of cadmium and 0.0001 to 0.0008 percent of tin. The preparation process comprises the steps such as smelting, die-casting forming, polishing, flash removing, grinding and CNC machining. The gear box cover is easier to assemble, high in wear resistance, excellent in mechanical property and long in service life; the process is simple, the quality is stable, the production efficiency is high, the overall cost can be reduced by more than 50 percent, and the industrialized mass production can be realized.

The invention provides an adhesive composition used for a solar backboard. The adhesive composition is prepared from the following components in percentage by weight: 30% to 50% of polyester modified acrylic resin, 30% to 45% of polyester resin and 5% to 40% of an isocyanate curing agent. 2-methylene-1,3-dioxocycloheptane is used for being reacted with an acrylic monomer, so that modified acrylic resin of which a main chain contains more ester bonds is obtained; the modified acrylic resin can be preferably compatible with polyester, the modified acrylic resin and the polyester are cooperatively used, and the adhesive force of the adhesive for PET films, PVF films or EVA films simultaneously can be greatly improved, so that the using performance of the backboard adhesive is greatly improved.

The invention discloses a catalyst for combustion of ventilation air methane and a preparation method thereof. The catalyst of the invention consists of an active ingredient, an active auxiliary agent and a porous carrier, wherein the active ingredient may be one or two of oxides of iron and copper or soluble salts of iron and copper; the active auxiliary agent is any one of cerium or lanthanum compounds; the porous carrier may be one or more of aluminum oxide, titanium oxide, zirconium oxide, magnesium oxide, calcium oxide, silica, aluminium silicate and magnesium silicate; and in form of oxide, the active ingredient accounts for 1 to 50 weight percent, the active auxiliary agent accounts for 1 to 30 weight percent and the carrier accounts for the balance. The catalyst of the invention has a catalytic effect on the combustion of the ventilation air methane and has the advantages that: the preparation method is simple; cost is low; methane ignition temperature and complete combustion temperature are low; and the like.

The invention relates to calcium aluminate cement containing nanometer-sized calcium carbonate and a preparation method thereof. The preparation method of the calcium aluminate cement containing nanometer-sized calcium carbonate is based on calcium aluminate used in prior refractory material by adding nano calcium carbonate powder and alumina micropowder. The invention solves the shortcoming of low mid-temperature strength in prior calcium aluminate, and particularly greatly improves the strength around 800 DEG C. The monolithic refractory containing the combined nanometer-sized calcium carbonate has a small change in cold strength under 800 DEG C and 1600 DEG C burning, and the strength of the cold state and the hot state is greatly increased compared with that of prior ordinary monolithic refractory containing the same quantity of CaO made by combining calcium aluminate cement. The invented nanometer-sized calcium aluminate cement containing calcium carbonate can be broadly used in producing refractory material such as refractory casting material, spray material, etc., and can greatly improve mid-temperature strength of material.

The invention discloses an indoor air purifying device based on low-temperature plasma. The indoor air purifying device comprises a shell; inside the shell, a fan, a primary filter screen, a low-temperature plasma reaction device and an adsorptive catalytic layer are sequentially arranged from a base plate to a top face cover; the low-temperature plasma reaction device comprises an insulating bracket; a plurality of low-temperature plasma discharging units are mounted on the insulating bracket; each low-temperature plasma discharging unit comprises an outer layer metal cylinder, an inner layer insulating cylinder and a plurality of metal corona wires; the outer layer metal cylinders and the inner layer insulating cylinders are arranged in parallel at intervals; the metal corona wires are arranged in parallel on the sidewall of each inner layer insulating cylinder; the metal corona wires are connected with the high-voltage end of a power supply; each outer layer metal cylinder is connected with the ground terminal of the power supply; a reaction chamber is formed between the metal corona wires and the outer layer metal cylinders. The indoor air purifying device disclosed by the invention is simple and compact in structure, low in wind resistance, large in air treatment capacity, capable of purifying indoor particulate matters, gaseous pollutants, bacteria, viruses and the like, also high in purification efficiency and good in practicability.

The invention relates to the technical field of a cable material, in particular to a flame-resistant TPU (thermoplastic polyurethane) cable sheath material with an electromagnetic shielding function as well as a preparation method thereof. The TPU cable sheath material comprises the following raw materials in parts by weight: 25 to 85 parts of TPU, 5 to 45 parts of carbon fiber, 5 to 35 parts of flame retardant, 0.5 to 5 parts of compatilizer and 0.02 to 0.1 part of antioxidant. The TPU cable sheath material provided by the invention has the electromagnetic shielding function, the shielding efficacy SE value can reach to 17 to 50 db, the flame-resistant effect is excellent, the flame-resistant effect of single cable sheath cable through vertical combustion test can reach to Level V0, the strength is high, the tensile strength can reach to above 25.5 MPa, the flexibility is high, the breaking elongation is high and can reach to above 410 percent and the mechanical property is excellent.

The invention relates to the technical field of package, in particular to a co-extrusion composite aluminum foil film and a preparation method thereof. The co-extrusion composite aluminum foil film comprises a surface layer, a middle layer and a substrate layer, arranged in sequence from outside to inside; the upper surface of the middle layer is jointed with the lower surface of the surface layer; the lower surface of the middle layer is jointed with the upper surface of the substrate layer; a PET protection film or a PA protection film is arranged on the surface layer; an aluminum foil film is arranged on the middle layer; a multiple-layer co-extrusion film is arranged on the substrate layer; an antistatic coating is jointed to the outer surface of the surface layer. The co-extrusion composite aluminum foil film can be permanently antistatic, has high block-water capability and oxygen barrier performance, is good in sealing effect, better in tensile strength, heat resistance, cold resistance, photopathy, barrier property and chemical stability, is multiple in function and low in cost, and is a good material for manufacturing electronic component packing bags.