24 results about "Environmental aging" patented technology

The invention relates to a bonding structure, an edge covering assembly, a preparation method of the edge covering assembly and a vehicle. The bonding structure is used for bonding a first component to be bonded and a second component to be bonded, the bonding structure is arranged between the first component and the second component, and the bonding structure comprises a first bonding part arranged on the side close to the first component and a second bonding part arranged on the side close to the second component; the first bonding part and the second bonding part both comprise magnetic materials, one magnetic material is a permanent magnet material, and the other magnetic material is a permanent magnet material or a magnetic attraction material. The bonding structure is beneficial to improving the anti-stripping strength and anti-vibration performance of a bonding interface, inhibiting bonding force attenuation caused by environmental aging (such as damp heat and ultraviolet rays), compensating internal stress deformation of the adhesive tape through magnetic attraction force, and prolonging the service life of the interface.

The utility model provides a kind of functional film, belong to functional film technical field.The utility model's functional film includes base material layer and the closed cavity inlay in the base material layer.The utility model's functional film only includes a layer of base material layer, more light and thin, optical absorption is lower, heat transfer performance is better;And relative to laminated structure, there is no interface mismatch risk, low in cost, there is no laminated interface, avoid delamination caused by moisture penetration under high temperature and high humidity environment, higher environmental aging resistance, and need not laminating.The utility model's functional film in solar cell field, can improve the structural stability of heat dissipation and packaging, improve the power generation efficiency of solar module, long-term working life and environmental tolerance, in display field, its light and thin, flexible and non-heterogeneous characteristics make it have good application space in precision optical device.

This utility model discloses a composite-coated anti-corrosion steel pipe, belonging to the field of steel pipe anti-corrosion technology. It includes a steel pipe body, with a first composite coating on the inner wall and a second composite coating on the outer wall. The first composite coating comprises, in sequence, an epoxy primer layer, a graphene-modified epoxy resin coating, and a polyurethane coating. The second composite coating comprises, in sequence, an epoxy resin underlayer, a polyolefin adhesive transition layer, and a modified polyurethane toplayer. This utility model, through differentiated coating design on the inner and outer walls, addresses the issues of media corrosion and erosion on the inner wall, while the outer wall addresses soil stress and environmental aging. Combined with a coupling agent layer and anti-corrosion sealing bosses, it eliminates weak points at the coating interface and connection areas, achieving multi-dimensional improvements in corrosion resistance, wear resistance, weather resistance, and mechanical properties, providing an efficient solution for pipeline engineering in harsh service environments.

The application discloses a kind of weathering aging performance detection devices for modified silica gel new material children tableware detection, it is related to new material detection technical field, including aging cabinet, the xenon arc lamp is installed in the aging cabinet, soaking groove is arranged in the aging cabinet.The weathering aging performance detection devices for modified silica gel new material children tableware detection, by driving mechanism drives silica gel chopsticks reciprocating motion, realize the intermittent contact and separation of tableware and olive oil medium, restore the real state of tableware alternate contact grease, exposed in air in daily use;While cooperating with mechanical fatigue loading mechanism, simulate the bending deformation and friction loss in the process of tableware use, realize the coupling detection of environmental aging and mechanical fatigue aging, completely solve the drawbacks of traditional equipment single aging detection, let detection working condition highly fit actual use scene, greatly improve the authenticity and reference value of detection data.

The invention belongs to the technical field of asphalt aging experiments, and particularly relates to an asphalt material multi-factor environmental aging simulation test system which comprises an experiment box, a sealing hinged door is arranged at the end of the experiment box, a temperature control system and a gas control system which are communicated with the interior of the experiment box are arranged on the outer side of the experiment box, and a motor is arranged in the experiment box. The driving end of the motor is connected with a sample placing table, and the using method of the asphalt material multi-factor environmental aging simulation test system comprises the steps of preparing a sample to be tested and the system, presetting parameters, initializing the system, establishing a simulation environment, and carrying out light aging simulation and spraying simulation. According to the invention, the optical chamber forms an independent chamber in the test box through the quartz filter window, the optical chamber is isolated from other areas of the test box, and meanwhile, the heat energy of a traditional abandoned light source can be converted into useful auxiliary energy, so that the operation energy consumption of the system is directly reduced, and accurate temperature control can be carried out under the multi-factor coupling effect in the test process.

The invention discloses a fuel cell system risk quantification method for coupling environment, aging and fault, which establishes a combined action mechanism of three adverse factors of environment, aging and fault on the system, and determines the system risk under the combined influence of the three adverse factors, and comprises the following steps: establishing an influence function fenv of the working environment on the system performance; establishing an influence function fde of galvanic pile aging on system performance; establishing an influence function ffaut of the system fault on the system performance; mutual influence definition among the three factors is carried out, and quantitative analysis is carried out on the risk of the fuel cell system through coupling influence analysis of the three factors on system performance. According to the method, the limitation of existing research can be effectively overcome, and technical support is provided for safety, reliability and life prediction of the fuel cell in a complex operation environment and a key application scene.

The invention relates to a high-molecular polymeric material for metal wire plastic coating and a preparation method, and belongs to the technical field of high-molecular materials, and a plastic coating layer is of a double-layer structure and comprises an inner layer and an outer layer. And the inner layer adopts a polyvinyl composite system which does not contain or contains little carbon black, and focuses on the adhesion, impact resistance and low temperature resistance of the metal wire. And the outer layer adopts a polyethylene / polyvinyl chloride composite system containing carbon black and titanium dioxide in a specific proportion, and focuses on wear resistance, ultraviolet resistance and weather resistance. Through one-time coating molding of a double-layer co-extrusion process, cooperation of functions of the inner layer and the outer layer is achieved through the structure, the adhesive force, environmental aging resistance, mechanical strength and long-term service life of the obtained plastic-coated wire rod are comprehensively improved, and the plastic-coated wire rod is suitable for protection application in outdoor harsh environments.

This invention discloses an anti-aging power metering box cabinet material, relating to the field of organic materials technology. The anti-aging power metering box cabinet material comprises the following raw materials by weight percentage: 25%-35% unsaturated polyester resin, 11%-15% low-shrinkage agent, 0.5%-2% initiator, 2.5-8% additives, 35%-50% organic composite filler, and 15%-25% modified chopped glass fiber. This application adds the prepared modified chopped glass fiber to the unsaturated polyester resin, along with the remaining additives required for preparing the electrical cabinet material, to obtain the cabinet material for use in power metering boxes. The power metering box cabinet material prepared in this application has advantages such as excellent mechanical properties, stable environmental aging resistance, low dielectric loss, and low dielectric constant.

The invention belongs to the technical field of metallurgy, and particularly discloses low-carbon aging steel for a home appliance color-coated sheet and application. The low-carbon aging steel for the home appliance color-coated sheet comprises the following chemical components in percentage by mass: 0.005 to 0.02 percent of C, 0.01 to 0.55 percent of Si, 0.1 to 0.5 percent of Mn, 0.01 to 0.05 percent of Al, 0.1 to 0.3 percent of Ti, 0.001 to 0.003 percent of B, less than 0.003 percent of N and the balance of Fe. The formula disclosed by the invention has the advantages of excellent stamping formability, no timeliness and weldability, certain structural strength and processing flexibility, and tolerance to a baking process in a production process and environmental aging in long-term use.

The application belongs to the technical field of environmental aging test, and is a large and medium-sized aircraft engine nacelle structure environmental simulation test method. The overall structure of a specific test procedure and multiple action modes of accelerated aging test are determined. Then, the material characteristics of the aircraft are analyzed to determine the specific design requirements of the accelerated aging test. Finally, the use and maintenance requirements of the aircraft, the load cycle conditions, and the environmental parameters and action time are analyzed to perform the accelerated aging test. On the one hand, the aging resistance performance of the material of the special temperature-medium environmental structure of the large aircraft engine nacelle can be accurately evaluated. On the other hand, the period of the accelerated aging test in the test process is short. Through the indoor artificial accelerated aging test, the time for evaluating the aging resistance of the large aircraft in a specific environment is shortened to 3% of the natural environment. On the other hand, the requirement for the equipment for implementing the test is low, and the existing medium-resistant and heating test equipment can be used for the accelerated aging test.

The invention belongs to the technical field of optical module manufacturing, and particularly provides a method for testing effective protection duration of a barrier material, which comprises the following steps: S1, making the barrier material into a container, filling the container with solute, and sealing the container; s2, the initial mass of the container is weighed, and the container is placed at the set temperature to be subjected to an environment aging experiment; s3, recording the mass of the container at different times, and calculating the corresponding volatilization mass; s4, according to the volatilization mass and the container surface area, obtaining the change relation of the volatilization mass per unit area along with time; s5, calculating failure volatilization mass per unit area according to preset container failure concentration and container surface area; s6, according to the change relation of the unit area volatilization mass along with time and the unit area failure volatilization mass, the effective protection duration of the barrier material is obtained. According to the method, trace permeation of the solute can be accurately captured, harm caused by mass volatilization of the solute is avoided, and the solute consumption is reduced. A mold opening step is omitted, and verification cost is reduced.

The invention belongs to the technical field of fiber composite materials, and particularly relates to a composite material for a cylindrical shell and a preparation method thereof.The composite material for the cylindrical shell is prepared from, by weight, 100 parts of composite modified epoxy resin, 12-25 parts of composite modified MBS flexibilizer, 25-35 parts of curing agent, 0.5-2 parts of accelerant, 0.5-1.5 parts of ultraviolet light absorber and 0.3-0.8 part of antioxidant. 1-3 parts of a thixotropic agent and 180-220 parts of glass fiber; according to the composite material for the cylindrical shell, the composite modified epoxy resin and the composite modified MBS toughening agent are introduced, and a specific forming process is combined, so that the composite material finally meets the basic requirements of high strength and high modulus of a structural part, and meanwhile, the composite material also has good toughness, environmental aging resistance, mechanical property and interface bonding strength; the comprehensive performance is obviously improved.

This application relates to the field of UV adhesive materials, and more specifically to a free radical cationic hybrid red UV adhesive for ribbon cable bonding and its preparation method. The free radical cationic hybrid red UV adhesive for ribbon cable bonding comprises the following raw materials: cationic UV-curable resin monomer, free radical resin, free radical monomer, cationic photoinitiator, free radical photoinitiator, coupling agent, thixotropic agent, reinforcing agent, and red pigment. The red UV adhesive finally obtained by this application not only combines the advantages of two UV curing systems to achieve low energy, complete curing and rapid curing in both light-shaded and thick-layer applications, but also maintains excellent storage stability and environmental aging resistance, significantly improving the overall performance of this type of UV adhesive and enhancing its application quality and service life.

This application provides a method for preparing the edge structure of a multilayer dimming film. The method involves plasma activation treatment of the cut end face of the film to form an activation layer, coating its surface with an interface anchoring liquid to form a flexible anchoring layer, and then applying an edge-sealing agent followed by a three-stage gradient curing process. This achieves high strength, durability, and self-healing capabilities at the film edge. Through the synergistic effect of the interface anchoring liquid and the edge-sealing agent, this method significantly improves the adhesion, protection, and mechanical stability of the film edge, while also exhibiting resistance to environmental aging and self-healing properties. It solves the problems of easy peeling, water seepage, and performance degradation at the edges of traditional dimming films, and has high industrial application value.

The invention discloses an EPDM (Ethylene-Propylene-Diene Monomer) sealing sound insulation component for a through type tail lamp, a preparation method of the EPDM sealing sound insulation component and vehicle application, an EPDM sheet is produced through a supercritical closed-cell foaming process, the EPDM sheet has a micro-nano closed-cell structure, the density is 55-750 kg / m, the hardness is 15-70 Shore C, and the compression set rate is not greater than 5%; an environment-aging-resistant pressure-sensitive adhesive layer is attached to one side of the EPDM sheet, and the other side of the EPDM sheet is a sealed contact surface; and the sealing sound insulation component is formed into a shape matched with the combination surface of the penetrating type tail lamp and the vehicle body through die cutting processing. By means of the mode, rain leakage and dust invasion of the long combination face of the penetrating type tail lamp can be effectively prevented, the driving safety in rainy days is remarkably improved, and a long-acting sealing solution is provided for the penetrating type tail lamp; the noise in the vehicle at the speed of 120 km / h is not higher than 57 dB (A), the noise in the vehicle at the speed of 60 km / h is not higher than 53.2 dB (A), the noise is reduced by 3-5 dB (A) compared with that of a mainstream electric vehicle, the library-level mute level is achieved, driving fatigue is reduced, the sound insulation and noise reduction performance is remarkable, and the driving comfort is improved.

The invention discloses a frame system material, a frame system and a preparation method of the frame system material. The frame system material comprises bio-based polyamide resin PA5T66, chopped fibers and a weather-proof agent. By adopting the high-glass-fiber-content filling reinforced composite material, the prepared photovoltaic frame and corner connector are excellent in mechanical property and outstanding in environmental aging resistance, and can meet the actual application requirements of a photovoltaic frame system.

The utility model discloses a kind of expanded polytetrafluoroethylene functional membrane welded pipeline structures, comprising: tubular main body, by ePTFE expanded polytetrafluoroethylene film bending formation;Main body weld strip, by PFA tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer or FEP fluorinated ethylene propylene copolymer hot melt formation, along the axial extension of tubular main body, and with the interface seal welding of tubular main body. Through the above mode, the utility model can provide more efficient filtering effect, allow fresh air to ventilate flow maximization, satisfy high standard filtering demand;With excellent environmental aging resistance, can adapt to humidity change such as humid and rainy weather, ensure that filtering effect is stable;Pipeline long service life, reduce the demand of frequent replacement, thereby reduce overall cost;Compared with high-priced ePTFE medical or filtering pipeline of foreign monopoly market, the pipeline manufacturing process of the utility model is relatively simple, cost is lower, help to break market monopoly.

The invention belongs to the technical field of polymer composite materials, and discloses a high-strength anti-aging automobile sleeve and a preparation method thereof. The method comprises the following steps: carrying out amino silane interface functionalization treatment on an MXene nanosheet to obtain f-MXene; after being premixed with a thermoplastic polyamide elastomer (TPAE) matrix, the mixture is subjected to melt blending and shear induction through a double-screw extruder to form a bionic layered structure, and finally, the automobile sleeve is prepared through injection molding. Through interface functionalization and structural design, the interface bonding force between the filler and a matrix is remarkably enhanced, filler agglomeration is avoided, and synergistic improvement of strength, toughness and aging resistance is achieved. The prepared automobile sleeve has high strength, high toughness, ultra-long fatigue life and excellent environmental aging resistance, is suitable for severe environments such as an automobile chassis system, and has important industrial application value.

The invention relates to a thermoplastic elastomer encapsulation process optimization method and system in the field of new materials, and the method comprises the steps: carrying out the deep learning of a correlation mode of demolding temperature and deformation stability through a support vector machine algorithm, and automatically triggering a temperature compensation mechanism if the demolding temperature is higher than 80 DEG C and the deformation stability index is abnormal, according to thermodynamic characteristics and mechanical stress distribution conditions of a material formula, an optimal demolding temperature interval for dynamic adjustment is obtained; a random forest algorithm is adopted to establish a prediction model of environmental aging factors and material performance degradation, the stability performance of a current material formula under the long-term use condition is judged by analyzing a temperature change period, a mechanical stress accumulation effect and an interface combination degradation rule, and targeted formula optimization suggestions and process parameter adjustment instructions are obtained.

The invention discloses an overhead insulated wire with a strong composite protection structure and a quality stability improving method, and relates to the technical field of power transmission equipment. The cable sequentially comprises a conductor core, an inner shielding layer tightly wrapping the conductor core, an insulating layer wrapping the inner shielding layer, an outer shielding layer wrapping the insulating layer, a composite protection layer wrapping the outer shielding layer, and an outer sheath wrapping the composite protection layer from inside to outside. According to the invention, through combination of a unique composite protective layer structure design and an integrated stable production process, comprehensive improvement of the mechanical performance, the environmental aging resistance, the electrical reliability and the long-term operation stability of the overhead insulated wire is realized.

The invention belongs to the technical field of composite materials, and particularly relates to a preparation method of fluorine-containing active ester, fluorine-containing active ester modified epoxy resin and a preparation method and application of the fluorine-containing active ester modified epoxy resin. The preparation method comprises the following steps: mixing 4, 4 '-(hexafluoroisopropylidene) bisphenol, an acyl chloride compound, an alkaline substance and an organic solvent in protective gas, and carrying out nucleophilic substitution reaction at 0-25 DEG C to obtain fluorine-containing active ester; the molar ratio of the 4, 4 '-(hexafluoroisopropylidene) bisphenol to the acyl chloride compound is (0.95-1): (2-2.1). The prepared fluorine-containing active ester can reduce the polarity of the epoxy resin, so that the water absorption rate of the epoxy resin is reduced, the comprehensive performance (damp-heat aging resistance and salt fog aging resistance) of the epoxy resin is remarkably improved, and the fluorine-containing active ester can be applied to the fields (electronic packaging, ship coating or ocean engineering) with strict requirements on the environmental aging resistance.

The invention discloses an anti-aging electric energy metering box cabinet material, and relates to the technical field of organic materials. The invention discloses an anti-aging electric energy metering box body material which comprises the following raw materials in percentage by weight: 25%-35% of unsaturated polyester resin, 11%-15% of a low shrinkage agent, 0.5%-2% of an initiator, 2.5%-8% of an additive, 35%-50% of organic composite filler and 15%-25% of modified chopped glass fiber. According to the invention, the prepared modified chopped glass fiber is added into unsaturated polyester resin, and other auxiliaries required for preparing the electrical cabinet material are added, so that the cabinet material applied to the electric energy metering box is prepared; the electric energy metering box cabinet material prepared by the invention has the advantages of excellent mechanical properties, stable environmental aging resistance, low dielectric loss, low dielectric constant and the like.

The utility model discloses a multi-layer heat insulation pipe for conveying high-temperature steam, which is applied to the field of high-temperature steam conveying and comprises an inner pipe, an outer pipe, an infrared radiation reflecting layer, a first heat insulation layer and a second heat insulation layer, the second heat insulation layer and the first heat insulation layer are distributed in a staggered mode, and when the multi-layer heat insulation pipe is used, the first heat insulation layer is formed by splicing two semicircular assemblies. The second heat insulation layer adopts the same structure, but is staggered with the joints of the first layer, and covers the splicing gaps of the first layer, so that heat needs to penetrate through more layers of materials, and double heat resistance is realized by prolonging the heat flow path and increasing the interface heat resistance; and then the outer protective layer resists mechanical shock, chemical corrosion and environmental aging.

The invention provides printing ink, a kitchen appliance, a preparation method of the printing ink and a preparation method of the kitchen appliance. The ink comprises a component A and a component B, the component A is prepared from the following raw materials: organic silicon modified epoxy resin, pigment and a heat-conducting insulating material; based on the total mass of the component A, the mass ratio of the organic silicon modified epoxy resin is 50%-70%, the mass ratio of the pigment is 10%-20%, and the mass ratio of the heat-conducting insulating material is 1%-8%; the raw material of the component B comprises a curing agent. According to the technical scheme, on the premise that the light transmittance is smaller than or equal to 1%, good temperature resistance of the ink layer and good adhesive force on the surface of a substrate after being subjected to environmental aging and / or chemical corrosion can be achieved, the heat conductivity and insulativity of the ink layer are improved, and therefore the service life of the kitchen appliance is prolonged, and the safety of the kitchen appliance is improved.