Patents
Literature

110results about How to "Good overall performance" patented technology

Multielement functional modified polymer binder for lithium ion battery and application of binder in electrochemical energy storage device

ActiveCN105914377AStable and uniform qualityGood overall performanceCyclodextrin adhesivesCellulose derivative adhesivesBiomassAddition reaction
The invention discloses a multielement functional modified binder for a polymer lithium ion battery. The binder takes a biomass polymer or a synthetic polymer as the substrate, takes a hydrophilic monomer and an oleophilic monomer as the functional modified monomer; and then the binder is prepared through a free radical graft copolymerization reaction or a Michael addition reaction in a modification manner. The binder has a multi-branch structured three-dimensional space network body, so that more active sites in contact with the electrode active material can be provided, and the uniformity and the smoothness of the electrode slurry in film-forming can be improved; the peeling strength of the active materials and the conductive agent on the metal substrate is reinforced; and meanwhile, the binder is excellent in elasticity and binding force, can be applied to water/organic solvent and can be applied to the positive electrode and negative electrode of the lithium ion battery; the conduction of electrons/ions in the charging-discharging process can be promoted; the electrochemical interface impedance of the pole piece is lowered; the high rate capacity and the cycling stability of the positive electrode material and the negative electrode material of the lithium battery are relatively improved; in addition, the synthetic raw material is wide in source, so that the cost can be obviously lowered; and therefore, the binder has a wide market prospect.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Improved 7000 series aluminum alloy double-stage overaging heat treatment technology

ActiveCN102796974AGood overall performanceGood corrosion resistance and fracture toughnessDouble stageCorrosion
The invention discloses an improved 7000 series aluminum alloy double-stage overaging heat treatment technology, the method divides the preaging in a low temperature zone into a low temperature phase and a high temperature phase orderly for performing pre-nucleation treatment, and then is continuously heated to a high-temperature region for final stabilizing aging treatment. The two phases preaging technical scheme that the low temperature is first and the high temperature is second is employed by aiming the defects and disadvantages of the heat treatment technology of 7000 series aluminum alloy double-stage overaging (T73, T74, T76 and T79), simultaneously, the technical scheme of high-temperature region aging treatment which is completely different from a T7x double-stage overaging technology is employed, the cooperation of an intra-grain precipitate phase and a grain boundary precipitated phase can be realized. Compared with a traditional T73, T74, T76 and T79 double-stage overaging system, the heat treatment technology can obviously enhance the corrosion resisting performance and the fracture toughness property of the 7000 series aluminum alloy under the prerequisite that equivalent strength level is kept, the total insulation time of aging treatment is reduced, and the production efficiency is increased.
Owner:GRIMAT ENG INST CO LTD

Closed-cell two-step foamed material prepared from styrene butadiene rubber, natural rubber, butadiene rubber and high styrene resin, and preparation method of closed-cell two-step foamed material

The invention relates to the technical field of foam materials and provides a closed-cell two-step foamed material prepared from styrene butadiene rubber, natural rubber, butadiene rubber and high styrene resin, and a preparation method of the closed-cell two-step foamed material. The closed-cell two-step foamed material retains the relatively good elasticity, wear resistance, fracturing resistance and slippery resistance of the styrene butadiene rubber; the addition of the natural rubber improves the rebound resilience, elongation, tensile strength and tear strength of the material; the cold resistance, wear resistance and elasticity of the material are particularly excellent and heat generated under live load is less due to the addition of butadiene rubber; the use of the high styrene resin improves the mechanical rigidity, hardness and stiffness of products, and makes up the cold flow property of the butadiene rubber at normal temperature. The produced product is remarkable in properties such as cold resistance (the lowest temperature reaches -100 DEG C), embossing and the like, and is free of toxicity, odorless and pollution. During the preparation, firstly, the natural rubber is masticated separately, and the high styrene resin and the natural rubber are blended in a ratio of 1:1; and then the two premixed rubbers are blended with styrene butadiene rubber and butadiene rubber, and the process of rolling and standing is carried out, so that the difficulty that the three types of rubber resins are poor in compatibility is overcome.
Owner:YIBAO FUJIAN POLYMER MATERIALS

Concave-convex support-engaged water-stopping pile

InactiveCN104164868AGood overall performanceImprove support strengthBulkheads/pilesPile capShock resistance
The invention discloses a concave-convex support-engaged water-stopping pile. The concave-convex support-engaged water-stopping pile comprises a pile body and a pile tip. The pile tip is provided with anchor bars and construction bars. The pile body comprises an upper pile section, a middle pile section and a lower pile section. The top of the upper pile section is provided with a pile cap and construction bars. The lower end of the upper pile section is provided with anchor bars. The upper end of the middle pile section is provided with threaded anchor holes. The lower end of the middle pile section is provided with anchor bars. The upper end of the lower pile section is provided with threaded anchor holes. The lower end of the lower pile section is provided with the pile tip. The two sides of the concave-convex support-engaged water-stopping pile are respectively of a concave-convex shape. The concave-convex support-engaged water-stopping pile has the advantages that the bars are evenly distributed through a long-line pedestal to tension stress overall, the two sides of the support-engaged water-stopping pile are respectively of the concave-convex shape, and spiral stirrups are distributed on the two sides of the support-engaged water-stopping pile; as a result, production on the long-line pedestal can be carried out, labor and efforts are saved, the environment is protected, the productivity is high, product quality is good, the pile can form a tall and straight appearance beneficially, and the beauty and shock resistance are both good; the pile is especially suitable for stopping water in ports, wharfs and deep foundation pits, high in bearing capacity and resistant to collision.
Owner:DALIAN GREAT GOLDEN HORSE INFRASTRUCTURE

Corrosion resistance aluminum alloy plate for aviation and preparation method of corrosion resistance aluminum alloy plate

InactiveCN111926225AImproves corrosion performance and toughnessGood overall performanceCorrosionAluminium alloy
The invention relates to the technical field of aluminum alloy processing, in particular to a preparation method of an aluminum alloy plate for aviation. The aluminum alloy comprises the following chemical components of, in percentage by mass, 0.05%-0.2% of zirconium, 0.05%-0.2% of scandium, 3.0%-6.0% of zinc, 3.0%-6.0% of magnesium, 3.0%-4.0% of copper, 0.2%-0.4% of silver, 0.05%-0.2% of lithium,1.0%-1.5% of manganese, 0.8%-1.5% of silicon, 0.20%-0.40% of titanium, 0.05%-0.1% of ruthenium, and the balance aluminum and inevitable impurities, and the content of the impurities is controlled tobe 0.15% or below; and an aluminum alloy melt is prepared according to pre-prepared materials, ultrasonic vibration is adopted in a refining process to refine grains, and then the aluminum alloy platefor the aviation is obtained through pouring, homogenization, extrusion, solid solution treatment, pre-stretching and three-stage aging treatment. According to the corrosion resistance aluminum alloyplate for the aviation and the preparation method of the corrosion resistance aluminum alloy plate, the Vickers hardness of the prepared aluminum alloy plate ranges from 175 Hv to 190 Hv, the yield strength ranges from 520 MPa to 562 MPa, the tensile strength ranges from 605 MPa to 656 MPa, the elongation ranges from 9.4% to 12%, the overall performance is excellent, and the aluminum alloy plateis particularly suitable for being used in the aerospace field.
Owner:湖南恒佳新材料科技有限公司

Method for assembled integral type reinforced concrete slab bridge

The invention discloses a method for an assembled integral type reinforced concrete slab bridge. An integral slab bridge is divided into slab blocks with the same width in the transverse direction, namely the direction perpendicular to the driving direction, then the slab blocks are prefabricated, the prefabricated slab blocks are connected through wet joints, the width of each prefabricated slab block is the difference of the width of a driveway and the width of each wet joint, connecting reinforcing steel bars are embedded at the position, corresponding to each wet joint, of the side face of each prefabricated slab block, the embedded connecting reinforcing steel bars are bound and connected, then cement concrete is poured, accordingly, an assembled integral type reinforced concrete slab is manufactured, and finally bridge deck pavement is carried out on the manufactured assembled integral type reinforced concrete slab, anti-collision guardrails are installed on both sides of a bridge deck in the longitudinal direction, namely the driving direction, thus, the assembled integral type reinforced concrete slab bridge is manufactured. The method for the assembled integral type reinforced concrete slab bridge has the advantages of being high in speed of the prefabricated assembly type construction method, low in cost and good in stress performance of the integral slab bridge. The manufactured slab is good in performance, can effectively avoid the occurrence of the condition that a single slab is stressed, saves cost of later maintenance and reinforcement and ensures construction quality.
Owner:苏州三木知识产权服务有限公司

Conductor shunt

The invention provides a conductor shunt. A circuit for realizing shunting of electrical signals of a main wiring harness and a shunting wiring harness is arranged on a PCB. Incoming line conductive tubes and outgoing line conductive tubes are connected with the PCB and are electrified; and plugging holes are formed in the incoming line conductive tubes and the outgoing line conductive tubes. Mounting holes communicated with the plugging holes are formed in a sealed housing; and internal threads are arranged in the mounting holes. Guiding elements are provided with via holes matching the main wiring harness and the shunting wiring harness and an interference fit is formed; and external threads matching the internal threads of the mounting holes are arranged at the peripheral of the guiding elements. When the guiding elements and the mounting holes are connected, conductors of the main wiring harness or the shunting wiring harness can be inserted into the corresponding plugging holes. According to the conductor shunt, routing can be carried out directly on the circuit board, so that the assembling time can be saved and the production efficiency can be improved; and because of the waterproof and dustproof effects of the conductor shunt, overhaul can be realized conveniently. When the conductor shunt is in use, the interference by an external environment can be avoided; and the service life of the conductor shunt is long and the excellent performance of the electric vehicle can be guaranteed.
Owner:江西众达泰科技有限公司

High-pressure-resistant and impermeable heat-preservation composite pipeline and preparation method thereof

The invention belongs to the technical field of pipelines, and provides a high-pressure-resistant and impermeable heat-preservation composite pipeline and a preparation method thereof. The heat-preservation composite pipeline comprises an inner-layer working layer, a middle-layer insulating layer and an outer-layer protective layer which are sequentially arranged from inside to outside, wherein the inner-layer working layer comprises an impermeable barrier layer, a polyethylene material layer, a modified reinforcing layer, a heat-sensitive micro-foaming adhesive layer and a prepreg tape winding layer which are sequentially arranged from inside to outside, wherein the polyethylene material layer is a PERT-II type high-density polyethylene material layer, the impermeable barrier layer is made of nylon MXD6 or ethylene/vinyl alcohol copolymers, the modified reinforcing layer is a glass fiber reinforced nylon MXD6 layer, the prepreg tape winding layer is a glass fiber reinforced polyethylene prepreg tape layer, and the modified reinforcing layer is composed of the following components of, in parts by weight, 35-50 parts of nylon MXD6, 15-50 parts of glass fiber, 0.2-1 part of a silanecoupling agent, 1-2 parts of an antioxidant, 0.5-1 part of a lubricant and 5-15 parts of a toughening agent. The heat-preservation composite pipeline and the preparation method solve the problem thatthe high-density polyethylene composite heat preservation pipeline is low in pressure resistance.
Owner:河北汇锐管业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products