67results about How to "No harmful effects" patented technology

The invention discloses a novel UV-cured adhesive for plastic and a preparation method thereof. The UV-cured adhesive is prepared by the following steps of: adding polyurethane acrylate and a monomer diluent into an epoxy acrylate resin, stirring at the constant temperature of between 50 and 55 DEG C for 3 to 4 hours, and adding a photoinitiator, an accelerating agent and a polymerization inhibitor; and regulating the temperature to between 60 and 70 DEG C, stirring at the constant temperature for 1 to 2 hours and discharging to prepare the novel UV-cured adhesive. The UV-cured adhesive comprises the following components in percentage by weight: 30 to 60 percent of polyurethane acrylate, 10 to 30 percent of epoxy acrylate resin, 4 to 5 percent of photoinitiator, 25 to 65 percent of monomer diluent, 0.1 to 0.9 percent of accelerating agent and 0 to 0.2 percent of polymerization inhibitor. The product is mainly applied to adhesion of PVC, ABS, PC, PMMA and other plastics, and has the advantages of no solvent, simple and easy operation and suitability for mass production.

The invention provides a nontoxic, anti-heat shrinkable polyvinyl chloride material, comprising the following components in parts by weight: 100 parts of polyvinyl chloride resin, 20-30 parts of filling, 10-60 parts of plasticizer, 1-2 parts of lubricating agent, 2-12 parts of compound stabilizer, 3-10 parts of fire retardant and 10-15 parts of anti-heat shrinkable agent. The invention also provides a manufacturing technology of the nontoxic, anti-heat shrinkable polyvinyl chloride material. The nontoxic compound stabilizer and the anti-heat shrinkable agent are added to the nontoxic, anti-heat shrinkable polyvinyl chloride material, which dramatically improves various thermostabilization performances of the polyvinylchloride material, especially the anti-heat shrinkable performances. The raw material of the invention has low cost and is environment friendly, thus having wide application prospect.

This invention relates to the field of fire-fighting equipment, specifically to means of fire fighting by a fire-extinguishing aerosol that is formed during burning of pyrotechnical composite and a method of its production. The invention allows to prepare pyrotechnical, aerosol-forming fire-extinguishing composite with good deformation strength characteristics, low fire-extinguishing concentration and regulate burning velocity. The pyrotechnical aerosol-forming fire-extinguishing composite contains an oxidizer, a production process additive and burning binder formed by thermoplastic formaldehyde and phenol polycondensate, plasticized by dicarboxylic acid ester and reinforced by polytetrafluoroethylene. The method of producing the composite consists of mixing of formaldehyde and phenol polycondensate suspension in an organic solvent and polytetrafluoroethylene dispersion in dicarboxylic acid ester, mixing the resulting composition with an oxidizer and a production process additive with subsequent thermomechincal effect. The invention can be used for fire-extinguishing in different structures and devices without harmful effect on human body and living organisms, nature.

The invention discloses a composite ultraviolet light curing water-based paint and a preparation method thereof. The composite UV-curable water-based paint of the present invention is prepared as follows: mix epoxy-acrylate and polyurethane-acrylate, stir for 0.5h-4h, then add water-based photoinitiator, silicone defoamer and water-based anti-corrosion Stir the mold agent for 0.5h-2h, and finally add a dispersant to disperse evenly; among them, 10-70 parts of epoxy-acrylate, 10-70 parts of polyurethane-acrylate, 1.0-8.0 parts of water-based photoinitiator, silicone defoamer 0.05-1.0 parts, 0.3-2.0 parts of water-based anti-corrosion and anti-mold agent, 10-90 parts of dispersant. The coating of the invention has excellent performance and is environmentally friendly, has no harmful influence on human body and surrounding environment, and meanwhile, its curing effect meets the national standard.

A method for treating a raw water containing a hardly decomposable substance, which comprises the following steps: a step (B) of adding an adsorbing agent to a raw water containing a hardly decomposable substance (a raw water to be treated) to allow said adsorbing agent to adsorb the hardly decomposable substance (an adsorption treatment step), a step (C) of separating a permeated liquid by the use of a filtration film, to concentrate the adsorbing agent having absorbed said hardly decomposable substance (a film filtration treatment step), and (D) a step of chemically decomposing the hardly decomposable substance being adsorbed in the concentrated adsorbing agent by a peroxide, without the operation for desorption from said adsorbing agent (a chemical decomposition step), and, by the above steps, concentrates hardly decomposable substances such as dioxins contained in a contaminated water (the raw water to be treated) and converts the hardly decomposable substances to harmless substances. The above method can be applied also to a raw water containing a reducing substance such as a hydrogensulfite for neutralizing free chlorine, the application thereof is not limited by the properties of hardly decomposable substances being contained, and also it allows conversion of hardly decomposable substances to harmless ones with good efficiency at a low cost.

The invention relates to health preservation nicandra physalodes jelly and a preparation method thereof, as well as a preparation method of nicandra physalodes jelly powder. The nicandra physalodes jelly is prepared from the following raw materials in percentage by weight: 60%-80% of nicandra physalodes, 0.7%-1.6% of vitamin nutrients, 0.24%-1.0% of a coagulator, and 20%-39.65% of assistant ingredients. According to the invention, the natural vitamin nutrients and nicandra physalodes are fused together, and thus, the nicandra physalodes jelly not only has own effects, but also has added functions of simultaneously tonifying Yin and Yang, and regulating human balance in two ways. Moreover, the assistant ingredients, including honey, red bean powder, coix seed powder, black sesame powder, green bean powder or milk, are added in the health preservation nicandra physalodes jelly, and thus, the prepared nicandra physalodes jelly has various effects of maintaining beauty, promoting digestion, replenishing blood, expelling toxin, preventing cardiovascular disease, reducing blood fat and the like. Moreover, seasonings are further added to increase different tastes, and the eating requirement of consumers with different tastes is met.

The invention discloses a preparation method of a biochar-immobilized naphthalene-degrading microbial agent. The method comprises the steps: weighing biomass raw materials and water, performing mixing, performing heating for a reaction, performing cooling to room temperature after completion of the reaction, performing solid-liquid separation, cleaning the solid product, performing freeze drying,performing grinding so as to obtain biochar, mixing a naphthalene-degrading strain with the obtained biochar in a LB liquid culture medium, putting the obtained mixture in a constant-temperature shaker, performing shaking culture so as to obtain a uniform mixed microbial solution, mixing the mixed microbial solution with a sodium alginate solution, performing magnetic and even stirring so as to obtain a sodium alginate-containing mixed microbial solution, adding the sodium alginate-containing mixed microbial solution dropwise to a calcium chloride solution, putting the mixture in a refrigerator, and performing still standing for a cross-linking reaction so as to obtain the biochar-immobilized naphthalene-degrading microbial agent. The prepared biochar-immobilized naphthalene-degrading microbial agent has an obvious remediation effect on soil which is contaminated by polycyclic aromatic hydrocarbon, and the method has mild reactions, low cost and no secondary pollution, and has broad engineering application prospects.

The invention provides a remediation method of alkaline soil, and relates to the technical field of soil improvement. The method comprises the steps of (1), soil preparation; (2), soil loosening agentapplication; (3), soil improving fertilizer application. According to the method, the alkaline soil is restored through the steps of soil preparation, soil loosening agent application, soil improvement fertilizer application and the like to reduce soil alkalinity, improve soil characteristics, loosen soil, increase soil fertility to gradually improve soil alkalinization, soil sterilization and fertilizer addition are conducted while the soil alkalinity is reduced, and the method is a remediation method which has the effects of alkaline soil conditioning agent and value improving and synergism.

The invention relates to a CO2 mineralization and seawater resource utilization coupling method. According to the method, magnesium oxide is added to a seawater solution, acid gas CO2 is trapped by using alkalinity produced during hydrolysis of magnesium oxide in the solution, meanwhile, carbonate and bicarbonate radicals after CO2 trapping are mineralized by using calcium and magnesium ions in seawater, calcium carbonate and magnesium carbonate are obtained through regulation, and CO2 mineralization and seawater resource utilization coupling is realized. The method can be conducted at the low temperature, calcium-rich and magnesium-rich resources rich in the seawater are directly utilized, preparation of calcium chloride and magnesium chloride solutions is not required, and the method is a green and efficient CO2 emission reduction and efficient seawater resource utilization coupling method.

The invention relates to an insulation resistance detection and ground protection device of a DC electric system. The insulation resistance detection and ground protection device comprises a detection signal source module, a plurality of signal couplers, a booster transformer, a plurality of residual current sensors, a plurality of phase-sensitive rectifiers, a plurality of insulation resistance detectors, a plurality of protection output units and blocking capacitors, wherein the detection signal source module is connected to the signal couplers through detection signal buses; the detection signal source module is connected to the positive and negative main buses of the DC electric system through the booster transformer; the residual current sensors are connected to the input ends of the phase-sensitive rectifiers, the control ends of the phase-sensitive rectifiers are connected to the detection signal buses, the phase-sensitive rectifiers are connected to the insulation resistance detectors and the protection output units, and the insulation resistance detectors and the protection output units are respectively connected to the detection signal buses. The insulation resistance detection and ground protection device has reliable selectivity and accuracy for insulation reduction and ground faults in a protection domain.

The invention discloses a manufacturing process for heat storage insulation cotton, which includes the steps: heating fibers of a coconut shell to a certain degree to generate coconut carbon micro-powder; evenly mixing polyester chips, silane coupling agents, zinc stearate and liquid wax to form melted polyester; evenly mixing the coconut carbon micro-powder and the melted polyester according to the mass ratio of 1:3.8-4.2 to form mixture; weaving the mixture into coconut carbon micro-powder master batches through a granulator; evenly mixing the coconut carbon micro-powder master batches with the polyester chips according to the mass ratio of 1: 8.5-9.5 to form coconut carbon fiber yarns by means of melting and spinning; stretching the coconut carbon fiber yarns to form coconut carbon fiber filaments; cutting the coconut carbon fiber filaments into a plurality of 5-7cm coconut carbon staple fibers; and manufacturing the coconut carbon staple fibers into insulation cotton by a non-weaving process. The heat storage insulation cotton obtained by the manufacturing process has adsorptivity and is fast in temperature rise, high in temperature, high in heat storage capacity and long in insulation time, and air permeability of the heat storage insulation cotton is greatly improved.

The invention relates to a blowdown device in a prawn breeding system, in particular to a gas lifting type decontamination device suitable for prawn indoor industrial culture.The gas lifting type decontamination device suitable for prawn indoor industrial culture comprises a guiding pipe, a top tray, a blowdown sleeve, an aeration pipe and a base plate, wherein the base plate is arranged at the lower end of the guiding pipe and installed on a blowdown port of the prawn breeding system, the guiding pipe is sleeved with the blowdown sleeve which can slide up and down along the guiding pipe, water drainage holes are formed in the position close to the lower end of the blowdown sleeve, the aeration pipe is arranged at the lower end of the blowdown sleeve in the peripheral direction, and the top tray is arranged on the top of the blowdown sleeve and further provided with an inflating port.Bubbles overflow to disturb living prawns so that the prawns can leave the blowdown port and cannot be affected by sewage, and meanwhile, by lifting the blowdown port through gas, dead prawns, residual feed and faeces in a prawn pond are fast removed.

The invention provides a joint coating copper-based alloy for silver and a preparation method thereof. The copper-based alloy comprises the following components by weight percent: 3-35% of Zn, 0.5-10% of Sn, 0.1-5% of Si, 0-0.1% of B and / or Li, 0.1-2% of In and the balance of composite rare earth elements and Cu. The composite rare earth elements in the copper-based alloy comprise the following components by weight percent: 0.5-5% of Y and 0-2% of La and / or Ce, wherein the contents of La and Ce are not both zero. One of B and Li is selected. The copper-based alloy uses the composite rare earth elements and various elements with oxygen activities to perform multi-component alloying so as to improve the structure of the alloy, refine grains, degas, clean the grain boundary and increase the mechanical properties, castability and machinability. In addition, the alloy does not contain precious metal elements and has lower cost.

An aqueous flux for hot dip coating of low-Al Zn alloy by flux method is prepared from zinc chloride (70-80 mass%), ammonium chloride (8-10 mass%) and cerium chloride (4-10 mass%). Said hot dip coating process includes such steps as removing oil and rust from the iron or steel workpiece, immersing it in said aqueous flux for a certain time, baking at 120-160 deg.c, and immersing in molten Zn-Al alloy.

The invention discloses composite fiber with an effect of keeping warm. The composite fiber is prepared by the following process method of: heating fiber of coconut hulls to certain temperature, and generating coconut carbon micro powder; uniformly mixing polyester chips, a silane coupling agent, zinc stearate served as a surfactant and liquid wax served as a dispersing agent to form fused polyester; uniformly mixing the coconut carbon micro powder with the fused polyester according in a mass ratio of 1:3.8 to 4.2 to form a mixture; weaving the mixture to form coconut carbon micro powder masterbatches by means of a granulator; uniformly mixing the coconut carbon micro powder masterbatches with the polyester chips in a mass ratio of 1:8.5 to 9.5, and performing melt spinning to form coconut carbon fiber yarns; and drafting the coconut carbon fiber yarns to form coconut carbon fiber filament yarns. Fabrics formed by weaving the composite fiber has the advantages of adsorbability, greatly improved air permeability, high temperature rising speed, high temperature, high heat storage capability, and long heat preservation time.

The invention relates to a method for synthesizing organic fluorine modified polysiloxane linen finishing agent, belonging to the technical field of linen finishing agent. Polymethyl hydrogen polysiloxane, methyl methacrylate and fluorinated olefin are used as raw materials which have wide sources and moderate price and ensure sufficient addition reaction, easy reaction product separation and purification and high yield of organic fluorine modified polysiloxane linen finishing agent. Being the organic fluorine modified product with a stable structure, the finishing agent has good biological aging resistance, dose not repel the animal body, has no harmful effect on the environment, is green and environmental friendly and ensures that the linen fabric has durable finishing effect, resists water, oil and foul. The method adopts the hydrosilylation reaction and the simple reaction route and ensures high conversion rate.

An aqueous flux for hot dip coating of low-Al Zn alloy by flux method is prepared from zinc chloride (70-80 mass%), ammonium chloride (8-10 mass%) and cerium chloride (4-10 mass%). Said hot dip coating process includes such steps as removing oil and rust from the iron or steel workpiece, immersing it in said aqueous flux for a certain time, baking at 120-160 deg.c, and immersing in molten Zn-Al alloy.

The invention discloses a composite ceramic water purification agent, which is a porcelain granule or a pottery shard or a clay pipe with a porous mesh structure obtained by calcining a blank. The blank comprises the compositions according to the following weight percentage: 30 to 90 percent of carbon, 4 to 30 percent of silicon dioxide, 1 to 10 percent of zinc oxide, 0 to 15 percent of sodium sulfate and / or potassium sulfate, 1.5 to 6 percent of calcium oxide, 1.5 to 8 percent of aluminum oxide, 1 to 6 percent of magnesia, and 0.5 to 3 percent of ferric oxide. The porous mesh structure has the characteristics of decoloring and deodoring; a material with antibacterial and algae-inhibiting characteristics is a built-in electric field on a microscopic structure which mainly comprises zinc oxide and so on; and the built-in electric microfield effect is utilized to change surface characteristics of microorganisms, which can inhibit the propagation and growth of the microorganisms to achieve the aims of antibacterium and algae inhibition.

The invention provides chemical heat washing process equipment and a treatment technology for thick oil and oil sludge oil field wastes. The chemical heat washing process equipment comprises a heating and fluidization unit, wherein the heating and fluidization unit comprises a plurality of liquid storage tanks, a fluidization reaction tank and a heating unit, the liquid storage tanks are connected with the fluidization reaction tank, the fluidization reaction tank is connected with a homogenizing and solid-liquid separation system, the homogenizing and solid-liquid separation system comprises a blending tank and two centrifugal machines and is connected with a sewage pre-treatment unit, the sewage pre-treatment unit comprises an ozone micro-nano advanced oxidation device and an air floatation device and is connected with a sewage deep treatment unit, the sewage deep treatment unit comprises an ultrafiltration reverse osmosis device and an evaporation tank, both the homogenizing and solid-liquid separation system and the sewage pre-treatment unit are connected with a sludge deep treatment unit, the sludge deep treatment unit is connected with the homogenizing and solid-liquid separation system by virtue of a spiral conveyor, and the sludge deep treatment unit comprises a sludge biological treatment tank.

Disclosed are a non-evaporation type getter excellent in gettering effect, capable of maintaining the inside of a gas-tight container in a display apparatus, particularly a flat panel display apparatus or the like, in a high vacuum condition, easy to mount and less liable to contaminate the inside of the gas-tight container, a display apparatus including the getter, and methods of manufacturing the same. The non-evaporation type getter (20) includes a molded body including at least one element selected from the group consisting of Ti, Zr, Al, V, and Fe as a principal constituent thereof, the molded body formed by powder injection molding. The molded body is composed of a porous body having a porosity of 10 to 30%.

The invention discloses a thin strip continuous cast loop detection and control method. The method comprises the following steps of: installing two sets of infrared loop detectors on the outer arcs of loops along the width direction of a cast strip respectively, detecting accurate loop values of two ends of the cast strip in real time, obtaining the increment of cast strip deviation by comparing the magnitudes of heights of the loops at two ends of the cast strip, and then performing control and adjustment through a loop guiding device so as to prevent the cast strip from cracking due to torsion at the loops and improve the strip quality. By the method, the quantity of the loops can be detected in real time, the cast strip is prevented from cracking due to torsion and deformation under the condition of camber, cast strip deviation and the like by using a loop control mechanism, the quality of the cast strip is improved, and the stability of the cast strip loops is improved.

The invention relates to a passive transmission line receiver with reduced interference. Improved electronic structures are disclosed for propagating logic states between superconducting digital logic gates using a three-junction interferometer in a receiver circuit to reduce reflected signals that would otherwise cause distortion of signals transmitted between the gates. Other improved electronic structures include a passive transmission line (PTL) with a previously avoided transmission line matching circuit system. The matching circuit system minimizes the generation and propagation of spurious pulses emitted by Josephson junctions used in the digital logic gates.

The invention discloses a lithium ion diaphragm containing a lithium carbonate coating and a preparation method of the lithium ion diaphragm. The lithium ion diaphragm mainly comprises a base film and a safety coating coated on the surface of the base film, the safe coating mainly comprises mixed glue, an auxiliary agent and water; and the safe coating is prepared from the following raw material components in percentage by weight of 90 to 93 percent of mixed glue, 5.5 to 6.5 percent of auxiliary agent and the balance of water. The mixed glue mainly comprises a macromolecular glue material and lithium carbonate; and the addition amount of the lithium carbonate in the mixed glue is 0.5-2% of that of the polymer glue material. According to the present invention, the lithium carbonate-containing coating diaphragm disclosed by the invention can quickly provide gas molecules at the early stage of thermal runaway in a battery, so that the time for a safety structure to reach critical air pressure is shortened, and the safety performance of the battery is improved; the special coated diaphragm coating material containing the lithium carbonate component is simple in preparation process and relatively lower in cost, enables the safety of the battery to be remarkably improved, can realize the industrial production, and has higher economic value and practical value.

The invention relates to a soil improvement method for improving alkalinity of acid soil. The method comprises the step of applying a buffer solution by way of being mixed with planter soil in a period shorter than or equal to 30 days after planting, wherein the pH value of the buffer solution is 5-9 and the buffer solution consists of acceptable components in agriculture. The better way of applying the buffer solution is to match in use with already adopted alkaline soil improvers including quick lime. Experiments display that the method provided by the invention can make the pH value of the soil after application stable and can effectively avoid phenomena of burned and dead seedlings.

The invention discloses a synthetic method of a flexible finishing agent for polysiloxane flax in a comb structure, particularly relates to a synthetic method of carboxyl amino grafted and modified polysiloxane in a comb structure, and belongs to the technical field of synthesis of flexible finishing agents of flax. By taking polymethylhydrosiloxane, acrylonitrile and monoallyl amine as raw materials which are wide in source, moderate in price and full in addition reaction, the product is feasible to separate and purify, so that the obtained carboxyl amino grafted and modified polysiloxane in the comb structure is high in yield. As the matter serving as a flexible finishing agent of flax is one of compounds in stable structure, the compounds are better in biological aging resistance, free from rejecting phenomenon to animal bodies, free from harmful effect to the environment and environment-friendly. Secondarily, by means of hydrosilylation, the method is concise in reaction line and higher in conversion ratio.

The invention discloses laser and ultrasonic dual-mode tunnel deicing equipment and a using method thereof, and particularly relates to the field of tunnel deicing. A base is included. An azimuth torque motor is fixedly mounted in a supporting column; a supine torque motor is fixedly mounted at an outer end of a bearing seat; an emitting cylinder is welded to one side of a supporting rod; a laserdevice body is fixedly arranged in the emitting cylinder; a light beam collimator is arranged on one side of the laser device body in the emitting cylinder; and a calibration mechanism is arranged above the base; the calibration mechanism comprises an orientation calibration mechanism and a supine calibration mechanism, output ends of a first camera and a second camera are electrically connectedwith an image signal amplification circuit, the image signal amplification circuit is electrically connected with an image analysis and comparison unit, and a microcontroller and an error analysis unit are fixedly arranged in the supporting column. Accuracy of a heating position of the laser can be ensured.

Materials and methods for preventing, inhibiting, or reducing biofilm formation and biofilm infection in a subject are provided. The materials and methods use chlorhexidine, which has been found to beaccidentally non-toxic. The lack of toxicity facilitates the use of chlorhexidine if previously considered impossible.

The invention provides a sound-insulating and heat-insulating layer mechanism, which includes a waterproof layer of powdery hydrophobic material, and the waterproof layer of powdery hydrophobic material is closely connected with a rubber shock-absorbing pad through a weather-resistant silicone sealant, and the rubber shock-absorbing The cushion and the sound insulation layer are tightly connected by weather-resistant silicone sealant, and sound-absorbing cotton and sound-insulation panels are arranged in the sound-insulation layer, and the sound-insulation layer and the heat preservation layer are tightly connected by weather-resistant silicone sealant. The insulation layer is provided with a polyurethane foam layer, benzene board, insulation cotton and extruded board in sequence from top to bottom. The insulation layer and the anti-corrosion layer are tightly connected by weather-resistant silicone sealant. The present invention adds sound-absorbing Cotton and sound insulation panels have many small gaps for sound absorption and sound insulation of the sound insulation panels, making the sound insulation more thorough. Adding thermal insulation cotton can directly contact with human skin without any harmful effects. It is a non-toxic, non-toxic Harmful, non-polluting new insulation material.

The invention relates to a method for detecting a hot strip steel unequal-height free loop, comprising the following steps of, firstly, respectively installing a set of infrared loop detector at the inner arc side and the outer arc side of a hot steel strip free loop, wherein the two loop detectors are arranged on a same horizontal plane, distances from the two loop detectors to a cast roll and a loop guide roll are equal, and the two loop detectors are both arranged at the outer side of the cast roll and the outer side of the loop guide roll; installing the loop detectors on the plane parallel to the advancing direction of a cast strip and vertical to the width of the cast strip, wherein the centre line of a scanning detection angle of the two loop detectors is a same straight line; respectively measuring a same detection point on the free loop by the two loop detectors after starting working; obtaining angles of different loop heights along with the advancing of the cast strip; and calculating the actual height of the loop according to the angle corresponding to the height of the loop detected by the two detectors. With the adoptation of the method, an accurate measuring result of the free loop can be obtained.

The invention discloses a compound UV-curable waterborne coating and the preparation method. The compound UV-curable waterborne coating in accordance with the invention is prepared by the following method: Firstly, epoxy-acrylate and polyurethane-acrylate are mixed, stirred for 0.5 to 4 hours, and then waterborne photoinitiator, organosilicon defoamer and waterborne preservative and mould proofingagents are added into the mixed solution and stirred for 0.5 to 2 hours, finally, dispersing agent is added to make the mixed solution disperse uniformly, wherein, the parts by weight of the components are as follows: epoxy-acrylate 10 to 70portions, polyurethane-acrylate 10 to 70 portions, waterborne photoinitiator 1.0 to 8.0 portions, organosilicon defoamer 0.05 to 1.0portions, waterborne preservative and mould proofing agents 0.3 to 2.0 portions, and dispersing agent 10 to 90portions. The invention has advantage of good performance, environmental protection and non-harm for human and environment, simultaneously; the curing effects meet the relevant national standards.