84results about How to "Low flash point" patented technology

The invention provides an anti-dazzle coating and an anti-dazzle hardening film. The anti-dazzle coating comprises the following components in parts by weight: 60-80 parts of polyurethane acrylate polymer with six degrees of functionality or above, 20-40 parts of acrylate monomer with six degrees of functionality or above, 10-15 parts of anti-dazzle particles with particle size of less than or equal to 500nm, 5-10 parts of anti-dazzle particles with particle size of 1-3mu m, 4-8 parts of a photoinitiator, 0.1-1 part of an organosilicone levelling agent, 0.5-1 part of an acrylic acid levelling agent and 40-80 parts of an organic solvent. The anti-dazzle coating provided by the invention is used for preparing an anti-dazzle hard coating film; two types of anti-dazzle particles different in particle size are used together so that the prepared anti-dazzle hard coating film has excellent properties of low flash point and high definition; in addition, the anti-dazzle hard coating film further has excellent levelling property so that the flash point of the anti-dazzle hardening film can be lowered further.

The invention discloses an electrolyte of a lithium-ion secondary battery, which adopts fluoro-carbonate, high molecular weight chain carbonate and N, N-dimethyl trifluoro ethyl amide as cosolvent, and an organboron compound as an enhanced conductivity additive, and also contains film forming additive vinylene carbonate, 1,3-propyl sultone and a non-aqueous organic solvent in which lithium salt is dissolved. The battery assembled by using the electrolyte has good charging performance and discharging performance at low temperature, and the flame retardant property of the electrolyte is remarkably improved as the fluoro-carbonate is added.

Novel engine fuels and engine fuel additives comprising terpenes, aliphatic hydrocarbons, and lower alcohols are disclosed.

The invention provides oxidation resistant dimethyl silicon oil based magnetic fluid and a preparation method thereof; the dimethyl silicon oil based magnetic fluid is prepared by nano-magnetic particles, a surface modifier and carrier fluid, and the carrier fluid is the dimethyl silicon oil. The preparation method of the dimethyl silicon oil based magnetic fluid comprises the following steps: preparing the nano-magnetic particles; treating the nano-magnetic particles in an activated way; preparing the nano-magnetic particles which are modified by the surface modifier; adding the modified nano-magnetic particles which are purified into methylene dichloride, dispersing and filtering the mixture to obtain the methylene dichloride based magnetic fluid; adding the magnetic fluid into the dimethyl silicon oil to be stirred and dispersed, heating the mixture and maintaining the temperature between 50 and 90 DEG C, separating and precipitating the mixture to obtain the dimethyl silicon oil based magnetic fluid. The dimethyl silicon oil based magnetic fluid in the invention has the advantages of high stability, low temperature resistance and high temperature resistance. The preparation method is simple, high in efficiency and low in requirement on equipments, thus being easy to be applied in various fields and having wide application prospect.

The invention discloses special lubricating oil of a bearing bush of a supporting roller of a rotary kiln and a manufacturing method thereof. The special lubricating oil contains the following components according to the content by mass percent: 49 to 69 percent of liquid paraffin chlorination and condensation synthetic oil, 15 to 35 percent of poly-alpha-alkene synthetic oil, 0.5 to 1.5 percent of tackifier, 2 to 4 percent of nano colloid molybdenum disulphide powder, 3.5 to 5.5 percent of organic molybdenum complex additive, 2.5 to 4.5 percent of borate complex additive, 1 to 3 percent of additive T406, 0.4 to 0.6 percent of antioxidant T203, 0.7 to 0.9 percent of antioxidant T531 and 0.6 to 0.8 percent of antioxidant T512. The invention has the favorable performances of extreme-pressure resistance, abrasion resistance, high-temperature resistance, water sprinkling resistance and oxidation resistance, can fully act as the functions of repairing the wire drawing of the bearing bush, decreasing the abrasion and lowering the temperature of the bearing bush, prolongs the use period of the bearing bush of the supporting roller and realizes the aims of energy saving and consumption reduction.

The invention relates to a preparation technique of beta-hydroxyalkylamide, which comprises the following steps: (a) proportionally adding diethanolamine and an alkaline catalyst into a reaction kettle, evacuating until the pressure in the kettle reaches 0.005-0.01MPa, and controlling the temperature at 50-80 DEG C; (b) dropwisely adding dimethyl adipate within 3 hours to carry out ammonolysis reaction, and evaporating to remove alcohol emitted in the reaction process; (c) after finishing dropwisely adding the dimethyl adipate, heating the reaction kettle to the high temperature of 105-120 DEG C to react for 2-4 hours, cooling to 75-95 DEG C to react for 0.5-2 hours, and keeping the viscosity of the product at 800-1000CPS; and (d) after the reaction finishes, carrying out after-treatment (crystallizing, centrifugalizing and drying) on the crude product. The mol ratio of dimethyl adipate to diethanolamine is 1:(1.8-4); the alkaline catalyst is selected from NaOH, KOH, CH3ONa and CH3ONa/NaOH; the alkaline catalyst accounts for 2-6 wt% of the dimethyl adipate; the crystallizing solvent is a mixed solvent in which the ratio of methanol to ethyl acetate is 1:(2-9); and the consumption of the crystallizing solvent is 1.5-4 times of HAA by weight. The invention can effectively enhance the purity of the product and inhibit the generation of side reactions.

The invention relates to the technical field of electrolyte of flame-retarded lithium ion batteries, in particular to electrolyte of a flame-retarded lithium ion battery. The electrolyte comprises a lithium salt and an organic solvent, and is characterized in that three flame-retarded additives are also added into the electrolyte, wherein the three flame-retarded additives comprise fluoro-carbonate as a first additive, fluoro-benzene as a second additive and a nitrogenous and fluoride bearing organic compound as a third additive. By adopting the technical scheme, the fluoro-carbonate FEC is added into the existing electrolyte system to increase the viscosity of the electrolyte system to a certain extent so that the flash point of the electrolyte system is reduced; the additive fluoro-benzene with comparatively stable electrochemical properties is added to increase the noninflammability of the electrolyte to a certain extent and simultaneously ensure that the viscosity of the electrolyte system is moderate; and the nitrogenous and fluoride bearing organic compound is added to increase the noninflammability of the electrolyte on the basis of guaranteeing the electrochemical properties of the electrolyte.

The invention relates to an oil composition for copper foil rolling and uses thereof, mainly overcoming the problems of the prior art, namely poor lubrication performance, much oil mist and poor low-temperature annealing detergency. The oil composition adopts a mixture comprising following components by weight: a) 90-98 parts of base oil; b) 1-10 parts of an oiliness agent; c) 0.5-4 parts of an extreme pressure agent; d) 0.05-1 part of a copper corrosion inhibitor; and e) 0.05-1 part of an antioxidant, wherein the base oil is selected from purified narrow-fraction dearomatization solvent oil; the oiliness agent is selected from C12-C14 fatty acid methyl ester and C10-C14 alcohol; the extreme pressure agent is selected from tributylphosphite; the copper corrosion inhibitor is selected from benzotriazole and derivatives thereof; and the antioxidant is at least one of N-phenyl-alpha-naphthylamine or dialkyldiphenylamine. By adoption of the abovementioned technical scheme, the problems are solved well, and the oil composition can be used for process lubrication in a copper foil cold-rolling process.

The invention discloses a repairing material for a color asphalt pavement, and a preparation method thereof, wherein the repairing material comprises, by mass, 10-22% of a petroleum resin, 35-50% of acompatibilizer, 2-9% of a polymer, 15-50% of a viscosity reducing agent, 0.05-1.0% of a vulcanizing agent, 0.1-1.5% of an anti-aging agent, and 0.05-1.0% of an activator. According to the present invention, the repairing material has advantages of excellent high-temperature performance, excellent low-temperature performance, good stability, high softening point, strong adhesion, high low-temperature elongation rate and high low-temperature ductility, can be stored at room temperature for more than one year, and can be well mixed with color pigments at a room temperature so as to effectively repair the color asphalt pavement with small-area damage after the mixing.

The invention discloses power grid transformer oil safety detection equipment, which comprises a compensation oil storage tank, an oil change mechanism, a distribution mechanism, a heat treatment mechanism, a carrier gas circulation mechanism, a temperature control mechanism, a waste oil recovery mechanism and a gas detection mechanism. An interlayer is arranged in the middle of a cylinder to forman independent driving chamber located on the lower portion and an independent sampling and supplementing oil chamber located on the upper portion. An electric driving mechanism is installed in the driving chamber, a push rod of the electric driving mechanism extends into the sampling and supplementing oil chamber and is provided with a piston, and the piston divides the sampling and supplementing oil chamber into a lower sampling oil chamber and an upper supplementing oil chamber. After sampled oil of the same batch is divided into a plurality of equal parts, emphasized detection is carriedout on different equal parts. Temperature control mechanisms located in different flat grooves can be arranged differently. The purpose of achieving the maximum detection degree is achieved accordingto the separation performance of different gases. Unimpeded butt joint of sampled oil treatment and a carrier gas channel can be achieved. The operability of fault gas detection is improved, and the detection precision is improved.

The invention discloses an anti-glare film with high wear resistance and a low flash point. The anti-glare film comprises a base material, and a first anti-glare coating, a second anti-glare coating and a third anti-glare coating which are sequentially coated on the base material; the first anti-glare coating, the second anti-glare coating and the third anti-glare coating respectively contain first anti-glare particles, second anti-glare particles and third anti-glare particles, the particle sizes of the first anti-glare particles, the second anti-glare particles and the third anti-glare particles are sequentially increased, the particle size difference of the first anti-glare particles and the second anti-glare particles is 0.5-5 [mu]m, the particle size difference between the second anti-glare particles and the third anti-glare particles is 1-7 [mu]m; and the first anti-glare particles, the second anti-glare particles and the third anti-glare particles are all organic particles, andthe refractive index difference between the first anti-glare particles, the second anti-glare particles and the resin in the corresponding coatings is less than 0.1. The anti-glare film provided by the invention has excellent properties of low flash point and high definition, and also has excellent wear resistance.

The invention discloses lithium-ion battery electrolyte. The electrolyte comprises LiPF6, a non-aqueous organic solvent and additives, wherein the additives comprise fluoroalkenyl phosphate compounds and LiBOB, the structural general formula of the fluoroalkenyl phosphate compounds is the general formula I or the general formula II shown in the specification; according to the general formula, when R1 represents alkyl with 1-5 carbon atoms, R2 represents fluoroalkenyl, and when R1 represents fluoroalkyl, R2 represents any one of alkenyl with 2-5 carbon atoms and fluoroalkenyl with 2-5 carbon atoms. The flammability of the lithium-ion battery electrolyte is low, the gas production capacity of the lithium-ion battery prepared from the electrolyte is small in the charging and discharging processes, and the battery can be effectively prevented from expanding and has excellent high-temperature cycle performance.

The invention belongs to the field of hydrofluoroethers, in particular to a hydrofluoroether compound and a preparation method and an application thereof. The hydrofluoroether compound is representedby that follow formula: F [CF(CF3)CF2O]<x>-R<H>; where x = 2-7; RH=CH3, C2H5, n-C3H7 or i-C3H7. The hydrofluoroether compound provided by the invention only contains fluorine, the only halogen element, does not contain ozone-destructive substances, and is an environmentally friendly non-flammable heat transfer agent, a solvent and a cleaning agent.

The invention discloses an automobile leaf spring free quenching technology, and belongs to the technical field of leaf spring machining heat treatment technologies. The automobile leaf spring free quenching technology is characterized by comprising the following steps that firstly, reeds are heated to 860 DEG C-920 DEG C in a stepping type quenching heating furnace, and heat preservation is conducted for 20-25 min; secondly, the reeds are sorted and discharged out of a furnace according to the lengths, wherein the lengths are smaller than or equal to 700 mm, are 700-900 mm, are 900-1,300 mm and are larger than or equal to 1,300 mm correspondingly; thirdly, after the reeds are moved to a forming platform through a robot, chain type overburden pressure forming is adopted; and fourthly, rapid quenching oil is set in a quenching oil groove, the forming platform is used for directly conveying the reeds into the quenching oil groove in a free state, the reeds are quenched within 30 s from furnace discharging to oil entry. According to the automobile leaf spring free quenching technology, the reed quenching quality can be improved while efficient production is achieved.

The invention discloses an industrial heavy oil stain cleaning agent and a preparation method thereof. The cleaning agent comprises following components in percentage by weight: 70.0 to 90.0% of aromatic hydrocarbon free solvent oil (D80); 1.0 to 10.0% of a Mannich base cleaning agent (RF1202); 1.0 to 5.0% of vinyl succinate (T747A), and 5.0 to 10.0% of methyl nylon acid. The cleaning agent can remove impurities on the surface of mechanical parts and metal parts such as oil stains, grease, dirt, metal chips, dust, and the like; the cleaning effect is good, the physical and chemical properties are good; moreover, the cleaning agent does not have pungent smell, is harmless to human body, and is noncorrosive; hands can contact with the cleaning agent directly, and the cleaning agent will not damage human body or equipment.

The invention relates to the field of nanoscale science and technology, and discloses magnetic liquid based on oxidation-resistant alpha olefin synthetic oil and a preparation method of the magnetic liquid based on the oxidation-resistant alpha olefin synthetic oil. The magnetic liquid comprises magnetic nano-particles, surfactants and carrier liquid, and is characterized in that the magnetic nano-particles are ferrite-class magnetic particles DxM1-xFe2O4, wherein the D and the M are Co, Mn, Ni, Mg or Zn, and x=0-1, and the carrier liquid is the alpha olefin synthetic oil or mixed oil with the alpha olefin synthetic oil and other basic oil. According to the magnetic liquid based on the oxidation-resistant alpha olefin synthetic oil and the preparation method of the magnetic liquid based on the oxidation-resistant alpha olefin synthetic oil, the DxM1-xFe2O4 magenetic particles are small in particle diameter, overcome the defects that existing magnetic liquid is poor in oxidation resistance and stability, and the like, are good in oxidation resistance, good in modification effect, and are capable of being dispersed in the carrier liquid, and good magnetic performance can be kept for a long time under a high-temperature environment. The preparation method of the magnetic liquid based on the oxidation-resistant alpha olefin synthetic oil is simple in operation, high in production efficiency, and low in requirement on equipment, and has good application prospects.