62results about How to "Easy to cause pollution" patented technology

The invention relates to a preparation method of a pressure-sensitive adhesive, and particularly relates to a preparation method of a solvent-free ultraviolet-curable organosilicone-modified pressure-sensitive adhesive. The method comprises the steps of: preparation of an organosilicone-modified polyurethane acrylate prepolymer and preparation of the pressure-sensitive adhesive. The pressure-sensitive adhesive is free of any organic solvents, and can be coated at normal temperature, dried without heating and rapidly cross-linked and cured.

The invention provides a solvent-free epoxy resin fire-resistant coating for an ultrathin steel structure, which comprises the following components in part by mass: 30 to 50 parts of solvent-free epoxy resin, 30 to 50 parts of inflame retarding system, 5 to 10 parts of titanium white, 5 to 8 parts of zinc borate, 1 to 3 parts of expanded graphite, 0.1 to 1 part of smoke inhibitor and 0.5 to 2.0 parts of various aids, wherein the inflame retarding system is a complex system of melamine, pentaerythritol and ammonium polyphosphate in a ratio of 1:3:2 or 1:3:1 or 2:3:1. The solvent-free epoxy resin fire-resistant coating has the advantages that: (1) the coating technology of solvent-free epoxy resin terrace is applied to the fire-resistant coating for the ultrathin steel structure, so that the fire-resistant coating for the ultrathin steel structure has the advantage of epoxy coatings and properties of fire prevention; (2) the fire-resistant coating for the ultrathin steel structure has the characteristic of environmental protection; (3) the coatings have high matching performance and can be better compatible with epoxy zinc-rich anticorrosion primers; and (4) the fire-resistant coating has high bonding strength which is more than or equal to 1.5 MPa, and has the characteristics of water prevention, corrosion prevention, high surface decoration and the like.

The invention relates to an AKD (alkyl ketene dimer) starch and a preparation method thereof. The method is implemented by selecting native corn starch as a raw material of starch through the following steps of: (1) adding the native corn starch into a reactor; (2) mixing an oxidant, a synergistic agent and water so as to obtain a solution; (3) injecting the solution obtained in the step (2) into the reactor in the step (1); and (4) carrying out standing, heating, heat preservation, cooling and sieving on a reactant obtained in the step (3) so as to obtain a finished product. The pH value of the AKD starch prepared by using the method disclosed by the invention is 6.5-8.5; and the viscosity of paste (6%) of the AKD starch at the temperature of 60 DEG C is less than or equal to 30mPa.s. The method is environmental-friendly, energy-saving, mild in reaction conditions, and easy to operate.

A silicoaluminophosphate molecular sieve with a CHA (chabasite) structure and a synthesis method thereof are provided. The invention relates to an SAPO (silicoaluminophosphate)-34 molecular sieve and a synthesis method thereof. The molecular sieve is characterized in that the molecular sieve micropore contains a template agent SDA (Structure-Directing Agent), the molecular sieve crystal surface is slightly enriched with silicon, and ratio of outside surface silicon content to crystal bulk silicon content is 1.50-1.01. The SDA is organic amine with a (CH3)2NRN(CH3)2 structure, and R is C2-C5 saturated straight chain or straight chain alkyl. After being roasted in air at 400-700 DEG C, the molecular sieve can be used as a catalyst and a gas adsorbent of acid catalyzed reaction and oxygen-containing compound conversion alkene preparation reaction.

The invention discloses a spray molding production line of an oil tank, which comprises a suspension rack conveying line of an oil tank, wherein the front end of the suspension rack conveying line of the oil tank is provided with an upper component area, and the end of the suspension rack conveying line of the oil tank is provided with a lower component area. The spray molding production line of the oil tank is characterized in that the suspension rack conveying line penetrates through a spray molding chamber, both sides of the bottom of the spray molding chamber are provided with slope faces, the centers of the slope faces are provided with bar-shaped grooves, a plurality of spray molding powder guns are installed at the front side and the back side of the spray molding chamber according to an upper orientation, a middle orientation and a lower orientation and are aligned to different positions of the oil tank hung on the suspension rack conveying line, and the suspension rack conveying line reaches the lower component area after penetrating through a drying chamber at the back side of the spray molding chamber. Molding powder for spray molding can be recovered and recycled, a work site is clean and tidy, and the invention has a protective action to the environment, is also beneficial to the clean production of a workshop, and enhancing the product quality, utilizes high-temperature solidification during spray molding, has stronger adhesion force in comparison with paint and strong hardness, is not easy to cause scratches and also lowers the cost greatly.

The invention discloses a preparing method of tin plate metal plate, which comprises the following steps: cleaning and drying surface of metal base plate; spraying tin or tin alloy coating on the surface of the metal base plate with cold air dynamic spraying technique; flattening or cold-rolling; forming tin plate metal sheet with flat surface; reflowing; forming bright tin plate sheet. This invention can prepare tin plate sheet with arbitrary thickness, which possesses high productive efficiency, short flow process and high quality of coating surface.

The invention discloses a pleurotus nebrodensis liquid strain culture medium, comprising the following raw materials in parts by weight: 4-4.5 parts of bran, 2-2.5 parts of corn flour, 1.2-1.6 parts of soybean cake powder, 1.5-2 parts of glucose, 0.1-0.12 part of peptone, 0.1-0.12 part of KH2PO4, 0.05-0.06 part of MgSO4 and 0.01 part of VB1 in 100 parts of water. A propagation method of a pleurotus nebrodensis strain comprises the following steps: preparing a liquid culture medium; adjusting the pH value of the liquid culture medium; sterilizing, and inoculating solid strain seeds; cultivating and preparing a solid fungus bag medium; cultivating solid strains; and inoculating and cultivating a fruiting fungus bag. The liquid culture medium disclosed by the invention is abundant in raw material source, and low in price; and due to a solid-liquid-solid production mode, compared with a traditional complete solid culture method, hyphae are even in growth speed in the fungus bag, regular and consistent in fruiting, even in sporocarp size, good in mushroom shape, good in quality, short in fermentation cycle, high in yield, and high in economic benefits, and thus the method is very suitable for popularization in small and medium-sized enterprises and peasant households.

The invention discloses a submarine flight node electromagnetic receiver. The receiver comprises an electromagnetic data acquisition module and an autonomous underwater vehicle, wherein the autonomousunderwater vehicle comprises a power device and an auxiliary device; the electromagnetic data acquisition module comprises an electrode, a magnetic field sensor and a data acquisition cabin; the power device comprises an altimeter, a power control cabin and a propeller; the auxiliary device comprises sonar, an underwater acoustic communication module and a floating body; the electromagnetic dataacquisition module is mounted on the autonomous underwater vehicle. The submarine flight node electromagnetic receiver inherits the characteristics of large dynamic range, low noise and low power consumption of existing submarine electromagnetic receivers, realizes accurate station arrangement of marine operations, controllable sensor orientation, independent and rapid switching and arranging of stations with marine electromagnetic methods, has the advantages of environmental friendliness, safety, high efficiency and low cost, and is one of the development directions of marine electromagneticexploration equipment.

The invention provides a synthetic method for a compound 1-{2-floro-4-[5-(4-isobutyl phenyl)-1,2,4-oxadiazole-3-yl]-benzyl}-3-azetidinecarboxylic acid represented by a formula 2. The synthetic method is simple in reaction condition, simple and convenient in post-treatment, easy to operate, high in yield, stable in process and suitable for industrial production.

The invention discloses a method for preparing water-soluble polymers, belonging to the field of polymer preparing technologies. According to the method, the shortage that polyacrylate or polyacrylic acid is prepared through directly polymerizing acrylates and acrylic acids, which serve as monomers, is abandoned, and a method that the polyacrylate or polyacrylic acid is prepared through indirectly polymerizing lipophilic substances and hydrophilic substances, which serve as monomers, is provided. According to the method, suspension polymerization and alkali liquor hydrolysis methods are comprehensively and simultaneously used, namely that the lipophilic substances and the hydrophilic substances serve as the monomers, copolymers are synthesized by adopting the conventional suspension polymerization method, then, the polyacrylate is prepared by adopting an alkali liquor hydrolysis method, or the polyacrylic acid is prepared by adopting alkali liquor hydrolysis and acidification combined methods. The suspension polymerization has the advantages that the heat of polymerization is easy to dissipate, the temperature of polymerization reaction is easy to control, the distribution of molecular weight of polymerization products is narrow, the polymerization products are solid bead-shaped particles and are easily separated and dried, and the like; particularly, during polymerization, water serves as a continuous phase, so that the environment can not be polluted, and the requirements for sustainable development are met.

The invention discloses a making method of a common morel liquid spawn. The method mainly comprises the following steps: making a shake flask culture medium, culturing a liquid parent culture medium, and culturing the spawn. The method solves the inconsistent fungus age problem of common morel, shortens the spawn production time, has the characteristics of good fluidity, easiness in dispersion, rapid germination and fungus age shortening, can shorten the production cycle, allows farmer households' products to go into the market about one month earlier, saves a lot of manpower and material resources, and improves enterprises' income.

The invention relates to the technical field of aquaculture, and particularly relates to an environmental-friendly abalone culturing platform. The platform comprises a main desk platform, the main deck platform comprises a plurality of deck cross beams which are parallelly arranged in the same direction, multiple deck longitudinal beams which are located on the same horizontal plane with the deckcross beams and perpendicularly connected with the deck cross beams, and multiple culturing regions are formed by the deck cross beams and the deck longitudinal beams; culturing net boxes are arrangedin the culturing regions, the culturing net boxes are connected with the main deck platform, the bottoms of the culturing net boxes are provided with horizontally arranged bottom floating tubes, andthe middles of the adjacent two culturing net boxes are connected through middle floating tubes; the main deck platform is square, and four vertexes of the main deck platform are provided with uprightcolumn floating tubes, and multiple hoisting devices which are used for lifting the culturing net boxes are arranged on the main deck platform. The abalone culturing platform has the advantages thatshaking and tilting do not easily take place, strong typhoon can be resisted, and the working efficiency can be improved.

The invention discloses a primer set, kit and detection method for rapid detection of carbapenemase genes. The primer set includes amplification primer pairs and molecular beacon probes for detectingenterobacter carbapenemase drug resistance genes KPC, NDM, OXA48, VIM and IMP, and nucleotide sequences are as shown in SEQ ID NO: 1-SEQ ID NO: 15. The kit disclosed in the invention only needs one sample addition, one reaction tube and one reaction system to complete the detection of the five common carbapenemase drug resistance genes of enterobacter within 2 h, has the advantages such as rapidity, high-efficiency and accuracy, greatly shortens detection time, saves detection cost, and improves detection efficiency. Moreover, compared with the existing probe method multiple PCR, the kit reduces primer design and interference between primers, and thereby can reduce the occurrence of false positives/false negatives.

The invention discloses a financial file shelf comprising a file shelf body, a file shelf bottom cover, a storage plate and buckling holes; a plurality of file storage plates are fixedly arranged in the file shelf body; file partition plates are fixedly arranged at the tops of the file storage plates; an important file storage layer is fixedly arranged at the bottom of the file shelf body below the file storage plates; a half-open hinge is fixedly arranged on one side of the inner wall of the file shelf body through a screw; the file shelf bottom cover is movably installed on the file shelf body through the semi-open hinge; a sliding rail is fixedly installed on two sides of the top of the file shelf bottom cover through screws; and baffles are fixedly installed on one side of the storageplate. The financial file shelf in the invention solves the problem that after excessive files are placed in a traditional financial file shelf, some important files are easy to mix with other files,which is not conducive to finding.

The names of the invention are a laser pattern device and a laser pattern optical mesh of an invisible sensor layer of a touch panel. The laser pattern device of the invisible sensor layer of the touch panel comprises a loading unit, a deposition unit, a laser unit and an etching unit; the loading unit is provided with a substrate; a sensor layer is formed by the deposition unit on the substrate; the laser unit performs the laser annealing treatment on a bent anti-interference patch pattern and a sensor layer predetermined pattern of the sensor layer to form a structure changing layer; and the etching unit removes the part of sensor layer except the anti-interference patch pattern and the sensor layer predetermined pattern to form the invisible sensor layer of the touch panel. The laser pattern device provided by the invention can obtain relatively accurate transfer patterns, and can avoid the problems of the common situation that the substrate is likely to be bent, damaged or polluted caused by the fact that the substrate is sent to an oven to be annealed.

A radial drilling machine comprises a cross arm lifting mechanism, a cross arm clamping mechanism and an upright column clamping mechanism. The cross arm lifting mechanism comprises a three-phase alternating-current motor, a coupler, a worm gear elevator and a lifting lead screw. The three-phase alternating-current motor is connected with the worm gear elevator through the coupler, and the worm gear elevator is connected with the lifting lead screw through a key and is locked through two round nuts and check washers for the round nuts. The cross arm clamping mechanism comprises a torque motor, a passing speed reducer, an upper microswitch, a push block, a lower microswitch, a clamping and pressing rod, a flat key and a motor shaft. The upright clamping mechanism comprises a speed reducer, a torque motor, a pin roller, a gear, a clamping belt, a gear box, a stop block and a pin roller guide plate. The radial drilling machine has the advantages that electric clamping time is short, and responses are quick; mechanical mechanisms are matched with electric appliance elements, responses are quick, and sensitivity is high; the fault rate of products caused by hydraulic problems is lowered; the production period is shortened and the production rate is increased; controllability of product quality is improved.

The invention provides a loop-mediated isothermal amplification primer for detecting type 2 porcine circovirus. The loop-mediated isothermal amplification primer comprises a first outer primer, a second outer primer, a first inner primer and a second inner primer. The invention further provides a method for detecting the type 2 porcine circovirus by the loop-mediated isothermal amplification primer. The loop-mediated isothermal amplification primer can rapidly detect the type 2 porcine circovirus and is high in detection sensitivity, good in specificity, high in detection rate, short in reaction time and simple to operate, and results are conveniently observed.

The invention provides an LAMP (loop-mediated isothermal amplification) primer group for detecting CaMV35S starter, comprising CaMV-F3primer, CaMV-B3 primer, CaMV-FIP primer, CaMV-BIP primer, CaMV-LF primer, and CaMV-LB primer. The invention also provides a method for detecting CaMv35S starter by using the above LAMP primer group. The LAMP primer group provided herein can detect CaMV35S starter, a detection apparatus is simple, input of expensive PCR apparatus is not required, the results are easy to determine, lab input is lowered, and the LAMP primer group and the method are suitable for popularization and application.

The invention relates to a cuprous oxide semiconductor ceramic material and a preparation method of the material and belongs to the technical field of functional materials. The invention provides a novel formula of the cuprous oxide semiconductor ceramic material. According to the formula, direct adoption of a Cu2O raw material formerly is changed; and other metal oxide raw materials are added asingredients on the basis of Cu2O. The composition formula of the semiconductor ceramic material is changed; metal oxides improving conductivity are selected to reduce volume resistance of the semiconductor ceramic material; the electrocorrosion resistance and chemical corrosion resistance of the semiconductor ceramic material are improved; the bonding strength of the semiconductor ceramic materialwith Al2O3 and ZrO2 base materials is improved; and therefore, a service life of the semiconductor ceramic material is prolonged. At the same time, the threats to personnel and an environment are reduced in a preparation process.