656results about How to "Good high and low temperature performance" patented technology

The present invention provides composite lithium-based lubricating grease and a preparation method thereof. The composite lithium-based lubricating grease consists of thickener, base oil and additive. The thickener consists of 12-hydroxy stearic acid lithium dibasic acid and/or lithium borate, and the mol ratio is 1 ®U 0.1 to 1 ®U 0.1to 1. The base oil is mineral oil or poly-alpha-olefin synthesis oil. The additive consists of organic amine compound antioxidant, benzotriazole and barium petroleum sulfonate or barium dinonylnaphthalene sulfonate anti-corrosion additive and rust protection agent, dialkyl dithiocarbamate or dibenzyl disulfide and sulfurized olefin cottonseed oil extreme pressure antiwear additive and nanometer copper powder repairing additive. The contents of the thickener and the base oil are respectively 6 percent to 18 percent and 82 percent to 94 percent according to the weight percentage. The lubricating grease has the multi-effect performances of high dripping point, good high-temperature performance and low-temperature performance, chemical invariability, colloid invariability, antiwear extreme pressure performance etc., and especially has the repairing function towards a damaged bearing.

The invention provides a manual transmission lubricating oil composition. The manual transmission lubricating oil composition comprises (a) at least one mineral oil and/or synthetic oil with high viscosity index, (b) at least one viscosity index improving agent, (c) at least one pour point depressant, (d) at least one phosphorus-containing antiwear agent, (e) at least one sulfur-containing extreme pressure agent, (f) at least one friction improving agent, (g) at least one clean dispersion agent, (h) at least one antioxidant, (i) at least one antirust agent, (j) at least one metal deactivator and (k) at least one anti-foaming agent. The manual transmission lubricating oil composition provided by the invention meets the vehicle gear oil viscosity level of 75W/80 or 75W/85, has excellent high-low temperature performances, anticorrosion performance, antirust performance and shearing-resistance performance, especially has excellent synchronizer friction performance, can be used for a manual transmission with a synchronizer, and can be completely suitable for the improvement of oil product performance requirement brought about by technique improvement of the manual transmission at present.

The invention discloses an asphalt base composite material for pavement crack repair. The asphalt base composite material for pavement crack repair is prepared from a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 120-150 parts of anionic emulsified asphalt, 1-3 parts of water reducing agent, 1-3 parts of defoaming agent, 3-8 parts of binder and 0-10 parts of water, and the component B comprises the following raw materials in parts by weight: 100 parts of cement, 70-110 parts of sand and 0.01-0.06 part of expanding agent. The asphalt base composite material for pavement crack repair has the flexibility of asphalt, the rigidity of cement and certain strength, is used for crack pouring and can bear and transfer loading force; the binder is added to the material so as to play a role of reinforcing the binding force between the material and crack walls, so that the service life of a pavement is prolonged, and the re-cracking phenomenon is difficult to occur. The asphalt base composite material for pavement crack repair has the advantages of low cost price, simple construction, low requirements on constructors, low energy consumption, low cost, strong binding power and long useful life and can be widely applied to the pavement crack repair.

The present invention relates to poured road surface laying material, and is especially one kind of poured epoxy asphalt concrete material with low construction temperature, high flowability and construction convenience and its preparation process. The poured epoxy asphalt concrete material consists of component A and component B in the weight ratio of 8-50 as well as stone material in the amount of 3-9 times the component A. The component A consists of asphalt 45-90 weight portions, epoxy resin 4.5-36 weight portions, modified alkylphenol 9-27 weight portions and glycidol ether 0-3 weight portions, and the component B is curing agent. The poured epoxy asphalt concrete material is prepared through mixing the materials of the component A, stirring at 120-160 deg.c, adding stone material, and final adding the heated curing agent and maintaining the temperature for 0-120 min.

The invention provides a ternary positive electrode material lithium ion battery electrolyte, and relates to the technical field of a lithium ion battery. The ternary positive electrode material lithium ion battery electrolyte comprises a carbonate ester organic solvent, a lithium salt and an additive, wherein the lithium salt is lithium hexafluorophate, the lithium hexafluorophate accounts for 12-18% of the total mass of the lithium salt and the carbonate ester organic solvent, and the additive accounts for 5-15% of the total mass of the lithium salt and the carbonate ester organic solvent. The carbonate ester organic solvent is used, so that the solvent is high in solubility of the lithium salt and low in viscosity; and meanwhile, fluoroethylene carbonate is used as a low-temperature additive, the electrolyte is compatible with the electrochemical performance such as capacity and internal resistance, the ternary positive electrode material battery also has excellent cycle property, and the cycle time of the battery under a low-temperature condition is prolonged.

The bentonite composition modified asphalt consists of asphalt in 94-98 portions, bentonite in 1-3 portions and powdered styrene-butadiene rubber in 1-3 portions. The bentonite is at least one of calcium base bentonite, sodium bentonite and organic bentonite. The preparation process of the bentonite composition modified asphalt includes the following steps: eliminating sand in bentonite, drying, grinding and 325-mesh sieving bentonite; adding bentonite into the asphalt matrix; and adding powdered styrene-butadiene rubber while slowly stirring to mix homogeneously. The modified asphalt has the features of high temperature stability, low temperature cracking resistance, excellent anti-ageing performance, low cost, etc.

The invention discloses a high-polymer modified water-emulsion asphalt-based thick waterproof paint and a preparation method thereof. The paint is prepared by taking high-concentration ultrafine suspension microemulsion anion modified emulsified asphalt, a polyolefins modifier, rubber emulsions such as chloroprene rubber or butadiene styrene rubber or the like, multiple synthetic high-molecular polymers such as epoxy resin and the like, inorganic powders such as SiO2 and bentonite and the like as raw materials and mixing by employing a special production technology. Tests show that after a film is formed from the paint, no embrittlement happens at a low temperature of -20 DEG C, no flow happens at a high temperature of 120 DEG C, the elasticity recovery rate reaches up to 90%, and the paint can be stored stably for one year or more.

The invention relates to the field of lithium-ion batteries, in particular to a non-aqueous electrolyte and a lithium-ion battery employing the same. The non-aqueous electrolyte comprises a lithium salt, a solvent and an additive, wherein the additive comprises a sulphonate quaternary ammonium salt and an SEI film-forming additive. By the non-aqueous electrolyte, the wettability of the electrolyte on an active material pole piece is significantly improved; a solid electrolyte membrane which is small in impedance, uniform and compact is generated on the surface of the pole piece; and the dynamic performance of the pole piece is improved, so that the battery has good cycle performance when the pole piece is highly compacted or at a low temperature.

The invention discloses high voltage electrolyte considering high and low temperature performance and a lithium ion battery using the electrolyte. The high voltage electrolyte comprises a non-aqueous organic solvent, an electrolyte lithium salt, an ether nitrile compound and a low impedance additive, wherein the non-aqueous organic solvent comprises a carbonate solvent and a linear carboxylic acid ester solvent with a wide liquid range; the electrolyte lithium salt is a combination of lithium hexafluorophate and lithium triflurosulfimide according to a molar ratio of 0.01-0.5; and the low impedance additive is a cyclic sulfate compound. The linear carboxylic acid ester solvent for perfecting the electrode/ electrolyte interface is contained in the high voltage electrolyte, by means of the optimized combination of the ether nitrile compound, the lithium triflurosulfimide and the cyclic sulfate compound and other additives, a high voltage battery can be guaranteed to have excellent circulation performance, and meanwhile, the excellent high and low temperature performance of the high voltage battery of storage for 18 h in a full charge state at 85 DEG C and no lithium separation in the full charge state at 0 DEG C is considered.

The invention relates to technical field of a lithium ion battery, in particular to an electrolyte of a rapid-charging lithium ion battery. The electrolyte comprises a solvent, a lithium salt and an additive, wherein the solvent contains more than two mixtures of linear carbonic ester with a low boiling point, linear carboxylic ester, fluorobenzene and hydrofluoroether, and the additive comprises a first additive for negative electrode film forming, a second additive for improving the cycle performance of the battery and a third additive for improving the high-temperature performance of the battery. Compared with the prior art, the organic solvent and the three additives are used in a combination way to generate a synergistic effect, the rapid charging demand of a high-potential, high-compaction-density and more than 2C rapid-charging system battery with a voltage of 4.35V and negative electrode compaction density of over 1.6g/cm<3> can be met, and meanwhile, the electrolyte has favorable cycle performance and high- and low-temperature performance.

The invention discloses a low temperature type lithium ion battery electrolyte with high temperature property and lithium ion battery. The electrolyte is made by uniformly mixing and confecting electrolytic salt, non-water organic solvent, alkali additive and film-forming additive, the electrolytic salt is mixed lithium salt made by uniformly mixing lithium tetrafluoroborate and lithium bis(oxalate)borate, and the mol ratio of the two is 96-73: 4-27, the concentration of the mixed lithium salt solution formed by the electrolytic salt and the non-water organic solvent is 0.8-1.2mol/L; the alkali additive is heptamethyldisilazane and the mass ratio of the hepatmethyldisilazane and the non-water organic solvent is 0.1-8%; the mass ratio of the film-forming additive and the non-water organic solvent is 0.1-5%; and the lithium ion battery comprises an anode, a cathode, a diaphragm and low temperature type lithium ion battery electrolyte with high temperature property. The invention has reasonable design, simple preparation method steps and convenient implementation, and the prepared electrolyte and lithium ion battery have favourable comprehensive performances.

The invention relates to a heavy oil cleaning agent comprising the following constituents (by weight percent): (1) Tetrasodium EDTA 1-5, (2) sodium nitrite 0.1-1, (3) sodium carbonate 0.5-2, (4) polyoxythylene fatty alcohol ether 2-10, (5) polyoxythylene fatty alcohol ether sodium sulfate 1-5, (6) triethanolamine 0.2-1, (9) balancing water.

The invention discloses a non-aqueous electrolyte of a high-nickel ternary lithium ion battery and a high-nickel ternary lithium ion battery containing the electrolyte, which relates to the technicalfield of lithium ion batteries. The high nickel ternary lithium ion battery electrolyte comprises an electrolyte lithium salt, a non-aqueous organic solvent and a film forming additive. The film forming additive comprises vinyl sulfate and a phosphate ester compound having a structure of formula (I), optionally further comprising a conventional negative electrode film forming additive. The phosphate ester additive can form a protective film on the surface of the positive electrode material, thereby avoiding the generation of cracks in the NCM particles during the circulation process, reducingthe dissolution of transition metal elements at high temperature, and improving the normal temperature circulation performance, high temperature circulation performance and high temperature storage performance of the battery.

The invention provides a gear lubricant composite for manual transmissions of the light cars, comprising (A) at least one type of refining mineral oil with high viscosity index, or polyolefin synthesis oil, or ester lubricants, or a free composite of the above components, (B) at least one type of viscosity index improver, (C) at least one type of pour point depressant, (D) at least one type of extreme pressure additive with sulfurs, (E) at least one type of anti-wear additive with phosphorus, (F) at least one type of wear, oxygen, and corrosion-preventing multifunctional additive with phosphorus, (G) at least one type of anti-rusting additive, and (H) at least one type of friction modifier. The lubricant composite has excellent performance of high and low temperature, which can meet the requirements of gear oil with a viscosity grade of 75W/90. Moreover, passing the full-size gear bench tests as CRCL-42, L-37, L-33, L-60, and L-60-1 as well as cycle bench tests for the manual transmissions of the light cars, the gear lubricant composite can meet lubrication requirements of the manual transmissions of the light top-grade cars.

The invention relates to superstrong extreme pressure antiwear lubricating grease and a preparation method thereof; particularly, a densifier is generated by calcium sulfonate with a high base number through a phase inversion reaction, and the lubricating grease is prepared by combining base oil with other functional additives, wherein the base oil is combined by base oil with high viscosity and medium viscosity. The method comprises the following steps: stirring and mixing the composite base oil and the calcium sulfonate in a reaction vessel, heating, adding a phase inversion promoter, glacial acetic acid, and water, heating and reacting at a constant temperature, adding calcium hydrate, aliphatic acid and boric acid after the phase inversion is completed, reacting at a constant temperature, heating and dehydrating, adding an anti-oxidant, refining, transferring the materials into a blending vessel, adding an eutectic rolling additive and an adhesion improver, dispersing and homogenizing the mixture, filtering, and degassing to obtain the finished product. The lubricating grease of the invention has excellent water sprinkling resistance, excellent high and low temperature performance, superstrong extreme pressure antiwear performance, excellent pumping performance, outstanding shearing stability, and antirust performance.

The invention relates to a high-energy-density lithium ion battery and a preparation method thereof. The high-energy-density lithium ion battery comprises a positive pole piece, a negative pole piece and a membrane, wherein an active substance on the positive pole piece is nickel cobalt lithium manganate, namely Li<1+a>Ni<x>Co<y>Mn<z>O2; an active substance on the negative pole piece is a silicon-carbon material. The preparation method of the high-energy-density lithium ion battery comprises the following steps: manufacturing the positive pole piece with the active substance, nickel cobalt lithium manganate, namely Li<1+a>Ni<x>Co<y>Mn<z>O2; manufacturing the negative pole piece with the silicon-carbon material as the active substance; coiling or laminating the positive pole piece, the negative pole piece and the celgard membrane to prepare a power battery core. The lithium ion battery provided by the invention is high in energy density, high in coulombic efficiency and high in cycling stability. The preparation method has the advantages of simple process, low cost and easiness for industrialized production.

The invention discloses a non-cured rubber asphalt waterproof coating as well as a preparation method and application thereof. The waterproof coating comprises the following components in parts by weight: 10-50 parts of petroleum asphalt, 5-40 parts of waste rubber powder, 10-25 parts of waste engine oil, 0.5-8 parts of a styrene-butadiene block copolymer, 2-15 parts of styrene butadiene rubber (SBR), 2-10 parts of recycled plastic particles, 8-12 parts of terpene resin, 4-6 parts of coumarone resin, 0.1-3 parts of a surfactant and 0.1-1.5 parts of ionic liquid. The non-cured rubber asphalt waterproof coating is prepared by uniformly mixing the components according to the ratio at the temperature of 150 to 170 DEG C. The excellent high-low-temperature performance can also be ensured under the condition that a plurality of recycled materials are introduced into the raw materials of the non-cured rubber asphalt waterproof coating; the non-cured rubber asphalt waterproof coating is high in extensibility; meanwhile, the stress relaxation is within a rational range, so that the creep properties of the coating are ensured; the resources are greatly saved.

The invention discloses a method for preparation of modified asphalt with SBS and waste rubber powder as the modifier. The method adopts a physics and chemistry combined technology, uses a coupling agent to conduct chemical treatment on the modifier surface, so that a coupling effect can be generated between SBS and waste rubber powder, under a synergistic effect of EVA, extrusion molding granulation is carried out to obtain waste rubber powder/SBS/EVA blend particles. The blend particles are added into asphalt, shearing dispersion is performed, under a synergistic effect of a cross-linking agent and an antiaging agent, the modified asphalt with excellent high-and-low temperature performance, aging resistance, high elastic recovery, high 60DEG C dynamic viscosity and high temperature storage performance can be obtained. The modified asphalt product is applicable to drainage road pavements, steel bridge deck paving and old pavement reconstruction stress absorbing layers. The raw materials used by the method have wide sources, can be produced on existing SBS modified asphalt devices, and new equipment investment is unnecessary. Therefore, the modified asphalt is suitable for industrialized production and long distance transport.

The invention provides an electrolyte. The electrolyte is prepared from a non-water organic solvent, electrolyte lithium salt and a first additive, wherein the electrolyte lithium salt contains LiPF6, LiFSI and LiPF4C2O4; the first additive contains fluoro-anhydride, LiODFB and phosphate. The invention further provides a lithium ion battery containing the electrolyte. The electrolyte has excellent high-low-temperature performance and can be stored and transported at the room temperature.