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51results about How to "Remove protection" patented technology

Environment-friendly fluorinated polyurethane-polyacrylate emulsion and preparation method thereof

The invention discloses an environment-friendly fluorinated polyurethane-polyacrylate emulsion and a preparation method thereof. The preparation method comprises the following steps: polymerizing diisocyanate, dimethylolpropionic acid, a functional monomer and an anionic hydrophilic chain extender under the presence of a catalyst so as to obtain an isocyanate-terminated double-bond prepolymer; neutralizing with alkali and adding the water solution of a hydrophilic small-molecule chain extender for dispersing, and further initiating a fluorinated monomer and an acrylic monomer under the effect of a water-soluble initiator so as to obtain the environment-friendly fluorinated polyurethane-polyacrylate emulsion. The emulsion adopts a self-emulsifying method, and is subject to a post-chain extension method and free from any organic solvent or small-molecule emulsifier; and the emulsion is good in storage stability, and by introducing fluorine atoms, the water resistance and the solvent resistance of waterborne polyurethane are effectively improved. The emulsion is applicable to a waterborne coating, and a prepared coating film has the properties of excellent water and oil-proofing performance, heat resistance, being non-toxic, safe and highly glazed, and the like.
Owner:广东拓普合成科技股份有限公司

Two-AC and one-DC series-parallel microgrid structure suitable for multi-station integration

The invention discloses a two-AC and one-DC series-parallel microgrid structure suitable for multi-station integration. The series-parallel microgrid structure is formed by series-parallel connectionof an alternating-current sub-microgrid 1, an alternating-current sub-microgrid 2 and a direct-current sub-microgrid, wherein the alternating-current sub-microgrid 1 is connected with the direct-current sub-microgrid through a power conversion device and a connecting point 1, and the alternating-current sub-microgrid 2 is connected with the direct-current sub-microgrid through a connecting point2; the connecting point 1 and the connecting point 2 are DC/AC conversion devices, the connecting point 2 is a standby power supply point of the connecting point 1, the energy of the connecting point2 can only flow in one direction, and the voltage is rapidly supported for the direct-current sub-microgrid only when the connecting point 1 fails; the alternating-current sub-microgrid 2 comprises aNo.2 energy storage and station transformer, a 400V/380V isolation transformer, an energy storage battery and an AC/DC conversion device; the NO.2 energy storage and station transformer is connectedwith an external network, the 400V/380V isolation transformer and the AC/DC conversion device, and the AC/DC conversion device is connected with the energy storage battery. The series-parallel microgrid structure is high in reliability, wide in coverage, high in fusion degree and excellent in economy.
Owner:CEEC HUNAN ELECTRIC POWER DESIGN INST

Crosslinking self-emulsifying cation full fluorine copolymer soap-free emulsion and preparation thereof

InactiveCN101508755AGood emulsion stabilityImproved storage and dilution stabilityPrepolymerIon
The invention belongs to the polymer chemistry field, in particular to a cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion and a preparation method thereof. The soap-free emulsion overcomes the problems of the prior art such as poor film forming property, low conversion rate of fluoride monomer, and adverse impact on water resistance and oil resistance of fluorine-containing emulsion products and environmental protection. The technical proposal is as follows: the cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion is prepared by the following method: (1) preparing a monomer pre-emulsion mixture: mixing a cationic monomer with vinyl monomer, perfluoroalkyl (methyl) acrylate and a functional monomer to obtain a mixture solution A; and then mixing the mixture solution A with an oil soluble initiator to obtain a mixture solution B, pre-emulsifying and evenly mixing the mixture solution B by ultrasonic agitation or mechanical agitation; (2) preparing a water soluble perfluoroalkyl acrylate prepolymer; and (3) preparing the perfluoroacrylate copolymer soap-free emulsion. The cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion has the advantages of good stability, good film forming property of film coating, high conversion rate of the fluoride monomer, safety and environmental protection.
Owner:SHAANXI UNIV OF SCI & TECH

Infrared touch control liquid crystal integrated screen display module

The invention discloses an infrared touch control liquid crystal integrated screen display module. An infrared frame of the infrared touch control module comprises a touch control sensing element mounting part and an infrared frame extension part extending downwards along the outer side of the touch control sensing element mounting part; liquid crystal panel protective glass is stuck to the front surface of a liquid crystal panel to form a liquid crystal panel integrated screen; the touch control sensing element mounting part is stuck to the periphery of the front surface of the liquid crystal panel protective glass of the liquid crystal panel integrated screen; the liquid crystal panel of the liquid crystal panel integrated screen is not in contact with the infrared frame of the infrared touch control module; an infrared touch control sensing element is mounted in the touch control sensing element mounting part; a direct type backlight module is located on the back surface of the liquid crystal panel integrated screen; every two adjacent films and every two adjacent plates of the direct type backlight module are stuck to the periphery to form an optical film integrated layer, and the optical film integrated layer is stuck to the edge of an opening part of a back plate; no other supporting part is arranged between the direct type backlight module and the liquid crystal panel; the back plate of the direct type backlight module is buckled with the infrared frame extension part.
Owner:OPTON (SHUNCHANG) OPTICS CO LTD

Ocean source Bacillus barbaricus SCSIO 02429 and method for preparing squid small peptide by using same

The invention relates to ocean source Bacillus barbaricus SCSIO 02429 CCTCC No: M2010213. The invention also relates to a method for preparing squid small peptide, which is characterized by comprising the following steps of: adding the Bacillus barbaricus SCSIO 02429 into an inducing enzyme-production fermentation medium to ferment to obtain a crude enzyme solution for hydrolysis; then, after crashing squid abdominal organs into pulp, and adding the crude enzyme solution to carry out zymolysis to obtain a crude protein zymolyte with a destroyed glycosyl side chain; adding bromelin to carry out zymolysis; standing the obtained zymolyte; separating a crude adipose layer and a water layer; and drying after removing the crude adipose layer to obtain the squid small peptide. In the invention, the squid small peptide yield can reach 40-46 percent, and the amino acid yield can reach 16-22 percent. The squid small peptide has the actions of reducing the mortality rate of young seaculture animal and increasing the percentage of liveweight growth, can replace the traditional protein sources of fish meal, and the like in feed and is used for functional protein sources, additives, and the like of seaculture compound feed.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Injection molding robot with visual mold monitor

The invention relates to visual detection equipment, in particular to an injection molding robot with a visual mold monitor. The injection molding robot with the visual mold monitor can completely eliminate the serious visual distortion and blind areas of detection and protection of a traditional mold monitor, and has the characteristics of having high detection accuracy, being small and flexible,being capable of moving arbitrarily with a coordinate robot and integrating a mold monitoring protector and product quality visual inspection. The visual monitor is directly arranged on the coordinate robot. After the injection molding machine is opened, the coordinate robot descends to the interior of the mold with the monitor, can move arbitrarily and repeatedly according to detection key partsand takes photos continuously without dead angles or visual distortion; and after the shooting distance is shortened, the image definition generally increases by more than 200%, so that whether residues exist in a product and whether the product is taken out completely can be detected, whether metal and other plug-in components or pins inserted into the mold are installed in place can also be detected, whether the shaped product has quality defects such as incomplete filling, shrinkage, black spots and different colors is detected, the visual distortion is eliminated, the photos taken are clear and complete, and meanwhile the type of visual cameras is not limited.
Owner:SUZHOU IND PARK CHAOQUN AUTOMATION EQUIP

Locking method for preventing differential protection maloperation of transformer caused by sympathetic inrush current

The invention provides a locking method for preventing differential protection maloperation of a transformer caused by sympathetic inrush current, which belongs to the technical field of electric power automation. The method comprises steps of calculating a three-phase differential current value of a transformer, judging whether a phase difference exists between a second harmonic phase and a double fundamental current phase in the differential current when the transformer generates sympathetic inrush current or not, when it is judged that the phase difference exists between the second harmonic phase in the differential current and the doouble fundamental current phase when the sympathetic inrush current occurs in the transformer, calculating the second harmonic proportion value when the sympathetic inrush current and the fault occur in the transformer, judging whether the second harmonic proportion value is not lower than a proportion coefficient Kd or not, when it is judged that the second harmonic proportion values are all lower than the proportion coefficient Kd, judging whether the current value of the differential current is not lower than a setting value Iset or not, and when judging that the current value of the differential current is lower than the setting value Iset, locking differential protection.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY

Gelatin composite embolism microsphere containing nano calcium carbonate, preparation method of gelatin composite embolism microsphere and drug-loaded embolism microsphere

The invention discloses gelatin composite embolism microspheres containing nano calcium carbonate, a preparation method of the gelatin composite embolism microspheres and drug-loaded embolism microspheres. The microspheres comprise the following components in percentage by mass: 10-50% of nano calcium carbonate and 50-90% of gelatin. The gelatin composite microsphere containing the calcium carbonate nanoparticles provided by the invention can efficiently adsorb an anti-tumor chemotherapeutic drug through good water absorption of gelatin and extremely strong negative charge property of the calcium carbonate nanoparticles, and can realize long-time stable release of the drug, thereby playing a long-acting anti-tumor role; in the tumor embolism treatment process, the microspheres can continuously maintain a slightly alkaline environment of tumor tissues for a long time, so that the protective effect of lactic acid on tumor cells is effectively eliminated, and the sensitivity of chemotherapeutic drugs is improved; meanwhile, the embolism microsphere provided by the invention is simple in preparation method, relatively low in cost and good in reproducibility, has good biological safety and degradability, and has a bright application prospect in the field of liver cancer TACE treatment.
Owner:LISHUI CENT HOSPITAL

Integrated sewage harmless equipment

The invention provides integrated sewage harmless equipment, and belongs to the technical field of sewage and sludge treatment. The equipment comprises a flow meter, a valve, an ultrasonic/ultraviolet reaction tank, a flow guide partition plate, an ultraviolet lamp UVC, an overflow water outlet pipe, an emptying port I, an overflow water tank, a secondary treatment water inlet control valve, an ultrasonic/photocatalytic reaction tank, a flow guide partition plate loaded with a photocatalyst, a flow guide partition plate slot, a photocatalytic light source UVA, a water outlet, an emptying port II and an ultrasonic transducer. Under the combined action of ultrasonic waves, ultraviolet rays and photocatalytic reaction, multiple purposes of inactivation of pathogenic microorganisms in sewage, degradation of antibiotics and resistant genes of the antibiotics and the like are achieved, and harmless treatment of the sewage is achieved. The technology can greatly reduce the risk of by-products caused by chemical agent disinfection, is simple to operate, does not need auxiliary equipment and facilities, is safe and efficient, and is especially suitable for harmless treatment of secondary effluent of a sewage treatment plant, biogas slurry and sewage with similar properties.
Owner:UNIV OF SCI & TECH BEIJING

Combination method of microcomputer protection device and input protection device and output protection device

The invention relates to a combination method of a microcomputer protection device, an input protection device and an exit protection device. According to the combination method, when part of plug-ins in an original microcomputer relay protection device of one manufacturing plant in a power supply system are damaged, a new microcomputer relay protection device of the other manufacturing plant is switched in to compensate functions of the damaged plug-ins of the original microcomputer relay protection device. According to the input protection device, the new microcomputer relay protection device of the other manufacturing plant is connected in series into the original microcomputer relay protection device of one manufacturing plant in the power supply system to compensate the functions of the damaged plug-ins of the original microcomputer relay protection device. According to the exit protection device, two trip contacts of the original microcomputer relay protection device are connected in parallel with a trip contact of the new microcomputer relay protection device of the other manufacturing plant. The combination method of the microcomputer protection device solves the difficult problem that when part of the plug-ins of the original microcomputer relay protection device are damaged, no accessories are provided. The input protection device and the exit protection device are two devices with good effects, which are used for implementing the combination method of the microcomputer protection device.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Crosslinking self-emulsifying cation full fluorine copolymer soap-free emulsion and preparation thereof

The invention belongs to the polymer chemistry field, in particular to a cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion and a preparation method thereof. The soap-free emulsion overcomes the problems of the prior art such as poor film forming property, low conversion rate of fluoride monomer, and adverse impact on water resistance and oil resistance of fluorine-containing emulsion products and environmental protection. The technical proposal is as follows: the cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion is prepared by the following method: (1) preparing a monomer pre-emulsion mixture: mixing a cationic monomer with vinyl monomer, perfluoroalkyl (methyl) acrylate and a functional monomer to obtain a mixture solution A; and then mixing the mixture solution A with an oil soluble initiator to obtain a mixture solution B, pre-emulsifying and evenly mixing the mixture solution B by ultrasonic agitation or mechanical agitation;(2) preparing a water soluble perfluoroalkyl acrylate prepolymer; and (3) preparing the perfluoroacrylate copolymer soap-free emulsion. The cross-linking self-emulsifying cationic perfluorocopolymer soap-free emulsion has the advantages of good stability, good film forming property of film coating, high conversion rate of the fluoride monomer, safety and environmental protection.
Owner:SHAANXI UNIV OF SCI & TECH
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