98results about How to "No flash point" patented technology

The invention relates to an environment-friendly water-based ceramic base anticorrosion material. The environment-friendly water-based ceramic base anticorrosion material comprises first components and second components, wherein the first components comprise the following raw materials of a silicate aqueous solution, silane coupling agents and additives. The second components comprise the following materials of zinc powder and grapheme. The environment-friendly water-based ceramic base anticorrosion material has the advantages that water serves as a solvent, the material is free of poison and pollution, and VOC emission is zero; the environment-friendly water-based ceramic base anticorrosion material is resistant to high temperature and high in self-repairing capacity, a coating can be dried fast, the corrosion resistance is high, and the weather resistance is excellent; except oil paint and alkyd paint, the environment-friendly water-based ceramic base anticorrosion material can be matched with other anticorrosion finishing paint for use; the environment-friendly water-based ceramic base anticorrosion material is preventive to ultraviolet erosion, resistant to salt mist and various organic strong solvents and capable of being welded and cut with paint; the environment-friendly water-based ceramic base anticorrosion material can meet the requirement of long-acting inside and outside corrosion preventing engineering with the PH value being 5.5-8 under a medium environment in ship engineering, container engineering and other ocean engineering.

The invention provides an electrified cleaning agent for precise instruments and a preparation method of the electrified cleaning agent. The cleaning agent comprises cocamidopropyl betaine, nonylphenol polyoxyethylene ether, tetradecyl dimethyl benzyl ammonium, sodium tripolyphosphate, trisodium phosphate, sodium bicarbonate, sodium nitrite, 2-phenoxyethyl alcohol, pine oil, an antistatic agent, polyhydroxy polyamine, ethyl acetate and ethyl alcohol. The preparation method comprises the following steps: firstly adding cocamidopropyl betaine, nonylphenol polyoxyethylene ether, tetradecyl dimethyl benzyl ammonium and sodium tripolyphosphate to ethyl alcohol, so as to obtain a mixture I; adding trisodium phosphate, sodium bicarbonate, the sodium nitrite and 2-phenoxyethyl alcohol to ethyl acetate, so as to obtain a mixture II; and finally mixing the mixture I with the mixture II, and then adding the residual components, so as to obtain the cleaning agent. The cleaning agent is excellent in performance, and can be used as the electrified cleaning agent for the precise instruments.

The invention provides an evaporative cooling flame retardant battery system which is simple in structure, economical and durable, has a good heat dissipation function and has a flame retardant function. The evaporative cooling flame retardant battery system comprises a battery, a tank body, cooling liquid, a connector, a pressure relief valve, an electromagnetic valve, a cooler, a pipeline and total positive/negative connector and a pressure sensor; the battery is connected with the connector, and is immersed in the cooling liquid; the cooling liquid is fluorocarbon. The evaporative cooling flame retardant battery system has heat dissipation and flame retardant functions at the same time; the evaporative cooling flame retardant battery system has a simple structure and does not need special maintenance; the internal temperature balance and heat dissipation of the system are operated spontaneously, fans, pumps and other equipment are not needed in the internal of the system; compared with the traditional air cooling and liquid cooling, the heat dissipation effect of the system is better, the structure is simpler, the safety is higher, and the system is especially suitable for a high-power-density battery system.

The invention provides a neutral water base cleaning agent combination for a circuit board. The neutral water base cleaning agent combination comprises the following components in percentage by weight: 0.02 to 2% of C8-18 linear chain alkyl sulfhydryl, 0.02 to 2% of a specific sulfhydryl compound, 1 to 15% of an alcohol ether solvent, 0.02 to 5% of a nonionic surface active agent, water-soluble organic amine pH regulator and the balance of deionized water, wherein the specific sulfhydryl compound is a thiol-connected, benzene ring-free and nitrogenous five-membered heterocycle compound, and the adding amount of the water-soluble organic amine pH regulator is according to the ratio of 1:1 of an amine value to a thiol value in components. The neutral water base cleaning agent combination has a good capacity of removing flux residues after the circuit board is welded, can form composite hydrophobic organic membranes on most metal surfaces, and metals at PCB weld points and in electronic components are effectively protected and are prevented from being subjected to moisture absorption, corrosion and color change.

The invention relates to a vehicle-mounted battery fireproof heat source management synchronization device and a use method. The device comprises a liquid storage device, a liquid storage device control valve, a fire extinguishing pipeline, a spray head or a spray hole, a fire extinguishing pipeline control valve, an inductive probe, a water inlet connecting pipe and a water outlet connecting pipe, a sealed circulating flow channel is formed among the heat exchange pipeline, the water inlet connecting pipe, a vehicle-mounted battery pack module and the water outlet connecting pipe, fire extinguishing heat exchange liquid is stored in the liquid storage device, and the liquid storage device control valve, the fire extinguishing pipeline control valve and the inductive probe are all connected with a vehicle-mounted computer controlling the heat source management system and the vehicle-mounted battery pack module and are synchronously controlled by the vehicle-mounted computer. The vehicle-mounted battery fireproof heat source management synchronization device is ingeniously combined with an existing vehicle-mounted battery heat management system; under the condition that normal operation of an existing vehicle-mounted battery thermal management system is kept, professional fire extinguishing equipment of a battery module is omitted, the integration degree of resources is improved, the structural layout of the whole vehicle is simplified, the requirement for light weight of the whole vehicle is met, cost is saved, and the working mileage of the whole vehicle is increased.

The invention belongs to the field of fluorine chemical industry and specifically relates to a method for cracking hexafluoropropylene dipolymer to prepare perfluoro amyl ether and perfluoro amyl ether. The preparation method comprises the steps: 1) perfluoro pentacarbonyl ketone preparation: 1.1) sending the hexafluoropropylene dipolymer into an oxidizing furnace to perform cracking reaction withoxygen under the first catalyst condition; separating a cracked product to obtain perfluoro acetylfluoride; 1.2) preparing the perfluoro pentacarbonyl ketone under the second catalyst action with hexafluoropropylene and the perfluoro acetylfluoride prepared in the step 1.1) as raw materials; 2) selectively adding tertiary amine or a phase transfer catalyst into an inert dipole non-proton organiccompound solution to react under the alkali metal fluoride action with the pentacarbonyl ketone obtained in the step 1) and an alkylation reagent as the raw materials, so as to prepare the perfluoro amyl ether. According to the method disclosed by the invention, hexafluoropropylene tripolymer is utilized as a raw material to generate the perfluoro pentacarbonyl ketone, and then the perfluoro pentacarbonyl ketone reacts with the alkylation reagent to generate the perfluoro amyl ether; thus, the conversion efficiency is high, conditions are moderate, and the whole technological process is simpleto operate.

The invention provides a novel water-supply composite water treatment agent which is composed of imidazoline quaternary ammonium salt, polyferric sulfate, polydimethyl diallyl ammonium chloride, peroxyacetic acid, alum and water. The imidazoline quaternary ammonium salt is prepared by the following steps: adding benzoic acid and triethylenetetramine into a 250ml three-neck flask in a mole ratio of 1:1, and meanwhile, adding xylene as a water carrying agent; and heating by an electric jacket, starting stirring, carrying out acylation reaction for 2 hours after the temperature rises to 150 DEG C, slowly heating to 220 DEG C, carrying out cyclization reaction for 2 hours to obtain an imidazoline intermediate, cooling the system to 90 DEG C, adding isopropanol and water as solvents, and carrying out quaterization reaction for 4 hours. The production technique comprises the following steps: (1) sequentially adding the polyferric sulfate, imidazoline quaternary ammonium salt, polydimethyl diallyl ammonium chloride, peroxyacetic acid and alum into a reaction kettle, charging nitrogen into the reaction kettle, and starting stirring; and (2) heating to 80-120 DEG C, and stirring uniformly until all the raw materials are completely dissolved, thereby obtaining the novel water-supply composite water treatment agent.

The invention relates to device for achieving flue gas power generation and removing harmful substance in flue gas simultaneously. The device comprises a flue gas treatment system, a transduction system and an electric generator; the flue gas treatment system is composed of a shell, an evaporative condenser, a flue gas inlet and a flue gas outlet; the transduction system comprises a working medium evaporator, a working medium turbine, a condenser and a working medium compressor which are sequentially connected; the output end of the working medium compressor and the input end of the working medium evaporator are connected with a working medium outlet and a working medium inlet of a heat exchanger respectively; the working medium turbine drives the electric generator. According to the device for achieving flue gas power generation and removing harmful substance in the flue gas simultaneously, heat in flue gas is utilized to conduct heating, so that an organic working medium is evaporated, the working medium turbine is pushed to generate power, the heat utilization rate is high, and meanwhile harmful substances in the flue gas can be removed.