54results about How to "With performance" patented technology

The invention belongs to the technical field of lithium-sulfur batteries and in particular relates to a composite membrane of a lithium-sulfur battery. The composite membrane is a negative ion type composite multi-stage porous diaphragm and comprises a mixture of a negative charge ionization polymer and a lithium ion conduction polymer, wherein the composite multi-stage porous diaphragm has a macropore channel structure of 50 nanometers to 2 microns; micropores of 1-50 nanometers are formed in the side walls of macropore channels; the porosity is 50%-80%; macro pores account for 40%-70% of all pores and the rest pores are micropores. The composite multi-stage porous diaphragm provided by the invention has the characteristics and the beneficial effects that the macro pores of the composite membrane are good in electrolyte solution absorption and storage capacity, and the micropores are connected with the macro pores, so that the conduction of lithium ions can be facilitated; polysulfide negative ions can be excluded under the charge effect of the composite membrane material to a certain extent, so that the shuttle effect is inhibited, the loss of active substances is reduced, and the battery efficiency and stability are improved.

The invention relates to a fire retardant coating for a steel structure surface of a nuclear power plant. The fire retardant coating consists of components A, B and C at a weight ratio of (4-6): 1: 1, wherein the component A is a mixture composed of 15-35 parts of epoxy resin, 2-10 parts of reactive diluent, 5-15 parts of dehydration catalyst, 10-30 parts of carbonizing agent, 5-20 parts of foaming agent, 15-35 parts of fire retardant, 5-15 parts of smoke inhibitor, 10-30 parts of pigment and filler and 2-10 parts of auxiliaries; the component B is a mixture composed of 10-50 parts of toughened resin, 10-30 parts of pigment and filler and 2-10 parts of auxiliaries; the C component is an amine curing agent; and the toughened resin in the component B is hyper-branched polyester resin with a terminal carboxyl group. The fire retardant coating disclosed by the invention is more excellent than a normal intumescence fire retardant coating in binding strength, freezing and thawing cycle resistance, acid and base resistance, and fire retardant limit, and is specifically up to fire resistance requirements of the steel structure surface of the nuclear power plant.

The invention provides a composite nano-grade novel material based on cancer early-stage integrated detection, diagnoses, and treatment, and a preparation method thereof. According to the invention, gold nano-cage (gold nano-box) and nano-grade iron oxide are assembled, such that gold nano-cage (box)/nano-grade iron oxide composite particles are synthesized. With an assembling method from the inside to the outside, the gold nano-cage (box) is first prepared; iron oxide is nucleated and grown in the gold nano-cage (box); with a surfactant (such as glucan or the like), mono-dispersed iron oxide is obtained; the iron oxide is packaged by using biological molecules, such that the gold nano-cage (box)/nano-grade iron oxide composite particles are obtained; surface modification is carried out by using biological targeting molecules (antibodies or DNA molecules). The material is used in tumor magnetic resonance imaging, fluorescence imaging, dark field imaging, specific targeting multifunctional diagnosis, and photothermal therapy. The material can also be used as a targeting medicine carrier.

The invention discloses a polypropylene material for automobile interior trimming parts and a preparation method of the polypropylene material. The polypropylene material for automobile interior trimming parts comprises the following components in part by weight: 30-80 parts of polypropylene, 5-10 parts of ethylene propylene terpolymer and 10-25 parts of talcum powder. The polypropylene material can be prepared just through weighting each raw material in certain proportion; after the raw materials are uniformly mixed, carrying out fusing and mixing on the obtained mixture; and carrying out extruding and granulation to obtain the polypropylene material. Through mixing the polypropylene with the ethylene propylene terpolymer, the toughness and cold resistance of the polypropylene material can be improved, and the polypropylene material is good in ozone resistance, oxidation resistance and erosion resistance; meanwhile, the polypropylene material has a shockproof effect; and after the talcum powder is added, the friction coefficient of the polypropylene material can be reduced, and the self lubricity of the polypropylene material can be improved. The polypropylene material for automobile interior trimming parts disclosed by the invention has the appearance and performance of a rubber body; and the polypropylene material can be prepared into automobile interior trimming parts suchas outer side plates for driver seats, small cover lids, inner plates of side plates, plastic parts for inner side plates, outer side plates for passenger seats, door-sheet armrest frames and door trimming plates and the like through an injection molding process.

The invention discloses a novel chemical milling protective coating, which is a single-component coating comprising a thermoplastic elastomer, a pigment, a filler, an aid, a solvent and the like. The coating can be dried at normal temperature and also can be dried at a low temperature; and a film is level and uniform, and has a certain adhesive force and better physical and mechanical properties. Meanwhile, the coating has high chemical corrosion resistance and peeling performance, is mainly used for chemical milling of an aluminum alloy, a titanium alloy, stainless steel and the like, processing of high-hardness metals, anodizing of the aluminum alloy, electroplating, etching processing temporary protection of artistic products with complex technology and the like, and also can be used for chemical corrosion-resistant shielded protection of coated object surfaces or used as temporary protection coatings for preventing scratches and bruises on surfaces of instruments and mechanical equipment.

The invention discloses anti-ageing PP/HDPE (Polypropylene/High-Density Polyethylene) plastic for an automobile interior and a preparation method thereof. The automobile interior is applied to PP/HDPE plastic, and comprises the following components in parts by weight: 100 parts of PP, 20-30 parts of HDPE, 10-20 parts of ethylene propylene diene monomer and 0.1-5 parts of anti-ageing agent. The method comprises the following steps of: weighing raw materials according to a certain proportion; mixing uniformly; melting and compounding; and extruding and pelletizing to obtain the PP/HDPE plastic. The anti-ageing PP/HDPE plastic for the automobile interior has rubber body appearance and performance, high tensile strength, high flexural modulus and high cantilever beam gap impact strength, and can be easily processed into automobile interiors of various shapes through an injection molding process such as glove box inner cover plates, glove box hoppers, auxiliary instrument board bodies, storage box liners and panel storage boxes.

The invention discloses an environment-friendly refrigeration composition. The environment-friendly refrigeration composition is prepared from, by molar percent, 50-70% of fluoromethane and 30-50% of a second component selected from one or two or three of trans-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene and f-methyl methyl ether; the boiling point of the refrigeration composition is -50--75 DEG C, and the GWP value is smaller than or equal to 300. The refrigeration composition is low in GWP value, excellent in refrigeration performance, low in flammability, high in safety and suitable for replacing HFC-23 for refrigeration.

The invention relates to a PBT (Poly Butylenes Terephthalate) bamboo-charcoal elastic fiber belonging to the technical field of chemical fibers. The production method of the PBT bamboo-charcoal elastic fiber comprises the following steps of: drying and mixing bamboo-charcoal functional mater batch and PBT slices as raw materials, extruding the mixture into silks by using a screw rod-fused spinning board, carrying out winding formation, and then carrying out drawing elasticization by adopting an elasticizer to produce the differentiated bamboo-charcoal fiber meeting market demands.

The present invention is one kind of airflow netting and hydro entangling product and its production process and apparatus. The product has structure of at least two layers and includes at least one layer of web of super short down fiber and at least one layer of non-woven short fiber web. The production process includes longitudinally superposing super short down fiber web and non-woven short fiber web and hydro entangling to form composite fiber web structure; drying and winding to form the airflow netting and hydro entangling product. The production apparatus include one frame, at least one down slurry web forming device, at least one short fiber web forming device, at least one hydro entangling device, at least one dewatering device, at least one drying device and one finishing and winding device.

The invention relates to a high-robustness communication network for dual backup of an optical network and a wireless Mesh network. The high-robustness communication network comprises a dual backup transmission node arranged on a network layer of an OSI seven-layer model. The dual backup transmission node comprises a connection processing module which is used for being connected with an optical fiber and capable of forming the optical network. The connection processing module can be matched with a wireless Mesh network module in the dual backup transmission node to form an optical and wireless Mesh dual backup network. After the optical fiber is connected with the connection processing module, the optical network and the wireless Mesh network are formed simultaneously through the dual backup transmission node. When an interface monitoring module in the dual backup transmission node monitors that the optical network is normal, the connection processing module selects the optical network for data transmission, and otherwise the connection processing module selects the wireless Mesh network for data transmission. According to the high-robustness communication network, backup support can be provided for the optical network through the wireless Mesh network, the robustness of the whole network is improved to a great extent, and the network is wide in application range, safe and reliable.

The invention discloses a halogen-free flame-retardant polypropylene material and a preparation method thereof. The halogen-free flame-retardant polypropylene material is prepared from, by weight, 69-87.5 parts of polypropylene, 10-20 parts of expanded flame retardant, 1-5 parts of zirconium phosphate, 1-3 parts of expanded graphite, 0.3-2 parts of thermostabilizer and 0.2-1 part of white oil. Byadding zirconium phosphate and expanded graphite, flame-retardant performance can be improved, so that adding amount of the flame retardant is reduced greatly, and control of cost and maintaining of product performance are facilitated. The halogen-free flame-retardant polypropylene material is rich in raw material source, needless of modification treatment, simple in production process and easy for large-scale production.

The invention discloses screw spike anchoring mortar which is prepared from the following components in parts by weight: 20-40 parts of sulphoaluminate cement, 25-75 parts of dry sand, 0.5-0.8 part ofa reinforcing agent and 5-10 parts of a mixture. Compared with ordinary Portland cement, the screw spike anchoring mortar provided by the invention has the advantages that the setting time is shorter, the compressive strength reaches 30 MPa or above within 1-2 hours, the construction efficiency and quality are improved, and the pulling strength of a railroad sleeper is met.

The invention discloses a toilet seat and a preparation method thereof. The seat comprises a thermosetting resin seat body, and a heating assembly is embedded in the seat body. The method includes the following steps that 1, thermosetting particles and two mold sets with upper molds and a lower mold are provided, wherein the two mold sets share the lower mold; 2, the first layer of urea formaldehyde particles are laid in the first mold set of a compression molding machine, the first upper mold is closed for forming, and then the first upper mold is opened and moved away; 3, the heating assembly is laid on the seat with first forming; 4, the second layer of the urea formaldehyde particles are laid on the heating assembly and the seat with first forming; 5, the second upper mold is closed, and forming is conducted through compression molding. According to the toilet seat and the preparation method, the production method is simple, and the product is beautiful and safer.

The invention discloses compostable full-degradable disposable tableware and a preparation method thereof, which relate to the field of biodegradable materials. The compostable full-degradable disposable tableware is prepared from the following raw materials in parts by mass: 100 parts of aliphatic polyester resin, 0-40 parts of filler, 0.5-5 parts of compatilizer, 0.5-5 parts of chain extender, 0.01-1 part of initiator, 0.5-3 parts of grafting monomer, 1-4 parts of lubricant and 0.3-0.6 part of antioxidant. The preparation method comprises the following steps of preparing a required filler and a compatilizer, putting the filler and the compatilizer into a high-speed mixer for mixing at the temperature of 50-90 DEG C for 10-30 minutes, and discharging, adding the mixture into a continuousinternal mixer, carrying out internal mixing at 90-140 DEG C for 2-3 minutes, dropping the mixture into a conical double-forced feeding machine, and feeding the mixture into a double-screw extruder for granulation, so as to obtain required formula granules, pressing the mixture into sheets by a sheet machine at 120-180 DEG C, and carrying out plastic molding as required to obtain a finished product, or directly carrying out injection molding on the formula granules through an injection molding machine.

The invention relates to a recovery device for magnetic abrasive particles which comprises a support, a sliding mechanism, an electromagnet, a flushing pool and a screening mechanism, wherein the flushing pool and the screening mechanism are arranged in the support, the sliding mechanism is arranged on the support, and the electromagnet is driven by the sliding mechanism to slide between the flushing pool and the screening mechanism. The sliding mechanism comprises a transverse sliding rail, a sliding plate, a first lead screw mechanism driving mechanism, a supporting base, a sliding block anda second lead screw mechanism driving mechanism. The transverse sliding rail is arranged on the support, the sliding plate is driven by the first lead screw driving mechanism to transversely slide onthe transverse sliding rail, the sliding plate is fixedly connected with the supporting base, a sliding groove is formed in the supporting base, the sliding block is slidably connected in the slidinggroove, and the sliding block is driven by the second lead screw driving mechanism to slide up and down in the supporting base. The magnetic abrasive particle recycling device is used for recycling and reusing waste magnetic abrasive particles which still have use performance aiming at the magnetic abrasive particles prepared by a sintering method.

The invention discloses a method for preparing p-phenylene terephalamide pulp from short cut p-phenylene terephalamide waste fibers through pre-treatment and combined beating. The method comprises: pretreating the short cut p-phenylene terephalamide waste fibers with a 2 to 50 percent swelling agent at 20 to 60 DEG C for 1 to 24 hours first, wherein the bath ratio is (5-50):1; and then subjectingthe pretreated short cut p-phenylene terephalamide waste fibers to body fluid exhaustion and washing, preparing a suspension of fibers with a pulp mass concentration of 0.25 to 3 percent with the short cut p-phenylene terephalamide waste fibers, and beating by a two-stage combined bearing process of a trough-style pulp beater to obtain the p-phenylene terephalamide pulp. The method is characterized by taking the short cut p-phenylene terephalamide waste fibers as a raw material, using the swelling agent to pretreat the short cut p-phenylene terephalamide waste fibers, preparing the p-phenylene terephalamide pulp by the two-stage beating process, shortening time for beating, improving the added value of p-phenylene terephalamide waste fibers and preparing the p-phenylene terephalamide pulpwith excellent performance.