65results 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.

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.

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 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.

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 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.

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 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.

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.