228results about How to "Leave no trace" patented technology

The invention discloses a method for preparing a ceramic tile antifouling agent. The method for preparing the ceramic tile antifouling agent comprises the following steps of: mixing methyl hydrogen-containing silicone oil, fluoro silicone oil, amino silicone oil and a solvent at the temperature of 10-60 DEG C under a stirring action; adding an adjusting agent to adjust pH value of a system to be between 3 and 8; and continuously stirring for 10-60 minutes to obtain the ceramic tile antifouling agent. After being uniformly coated on the surface of a ceramic tile, the ceramic tile antifouling agent can infiltrate into the surface of the ceramic tile and form a stable chemical bonding action so as to form an organosilicon enhanced protection layer with hydrophobic and oleophobic properties, so that long-acting, high-luminosity and wash-resistant antifouling performance is realized. The ceramic tile antifouling agent prepared by the invention has the advantages of superior performance, wide application range and convenience for production, and is an ideal antifouling nursing agent for modern ceramic tiles.

The invention discloses a green, long-lasting antibacterial, mildew-resistant and insecticidal water-based micro-emulsifier. The green, long-lasting antibacterial, mildew-resistant and insecticidal water-based micro-emulsifier is characterized in that an insect growth regulator (IGR) is utilized as a main component; auxiliary components comprise multi-component plant essential oil and / or low-toxicity high-efficiency pesticides, bactericides, synergists, penetrants, water-soluble solvents, surfactants and a stabilizing agent; and the green, long-lasting antibacterial, mildew-resistant and insecticidal water-based micro-emulsifier satisfies prevention and control requirements of different places. The green, long-lasting antibacterial, mildew-resistant and insecticidal water-based micro-emulsifier has a wide insecticidal spectrum, high efficiency, an ovicidal function, an insect growth inhibition function and a long persistent period, avoids drug resistance, has bacteriostasis and mildew-resistance effects, a low residue amount and low toxicity to mammals, avoids pollution caused by pesticide application imbalance, and is conducive to the ecological environment. The green, long-lasting antibacterial, mildew-resistant and insecticidal water-based micro-emulsifier can be sprayed on an object, does not produce imprints, does not pollute stored objects, is suitable for bacteriostasis, mildew-resistance and pest killing of stored objects and plants, especially, is suitable for killing and control of insects, mites, mould and harmful bacteria on stored objects such as stored grains, tobacco, medicinal materials, leather, clothes, books, archives and historical relics, and can reduce the loss caused by insect damage and mildewing of stored objects and grains.

The invention relates to a method for preparing an automobile glass antifoggant, wherein deionized water is added into a reaction kettle, and 0.1-0.6 percent of high molecular filmogen is added, heated to 40 DEG C, and agitated until dissolved, then 0.6-4.0 percent of fatty alcohol polyethenoxy ether or nonyl phenol polyethenoxy ether nonionics, 0.1-0.6 percent of coconut fatty alkyl trimethyl chloride or lauryl amphoteric propyl juanacidate cationic surfactant, and 0.2-1.0 percent mono ethanol amine or trolamine acidity modifier are added orderly; finally, 5.0-30 percent of isopropyl alcohol, ethanol, propanediol, and propanetriol are added, evenly agitated until the temperature lowers to the room temperature, and then the glass antifoggant is obtained. The invention has the advantages that the use is simple; the glass atomizing effect is good; dust can not be absorbed on the surface of the glass after the drying process, and no trace is left on the surface; the product is colorless and flavorless, safe and reliable.

The invention relates to a tool, in particular to a hand hammer. The hand hammer comprises a hammer body and a hammer handle and is characterized in that the hammer body is also provided with a striking body, and one striking end of the hammer body is provided with a groove; the striking body is in a drawing pin shape and is provided with a striking pad and a connecting piece, the pin head part is the striking pad, the pin rod part is the connecting piece, the connecting piece of the pin rod part is inserted into the groove of the hammer body for connection, and the connecting piece inserted into the groove of the hammer body is also provided with a buffer spring; and the striking pad is preferably a soft object, such as rubber, rubber containing metal blocks, plastics and the like. The hand hammer has the advantages of simple structure, no trace or fewer trace when used for striking objects, and wide application in work and life.

The invention discloses a fast-curing indentation-proof water-based paint for galvanized sheets. A formula of the paint comprises the following components by weight: 30-45% of water-based resin, 1-3% of a dispersant, 20-35% of a pigment filler, 0.3-1% of a wetting leveling agent, 0.5-1% of a thixotropic agent, 0.3-1% of a defoaming agent, 0.1-0.8% of a flash rust inhibitor, 1-3% of a coalescing agent, 0.1-0.5% of a pH regulator and 10-40% of deionized water. The invention also discloses a preparation method of the water-based paint. The paint film provided by the invention can cure fast, and is safe, energy-saving, environment-friendly and simple for construction, so as to meet the fast production requirements of an assembly line. The obtained galvanized sheet has excellent properties and performance indicators reaching the industrial standard for galvanized sheet coating.

The invention relates to the technical field of sealant, in particular to low-TVOC polyurethane weather-proof sealant and a preparation method thereof.The low-TVOC polyurethane weather-proof sealant is prepared from polyurethane prepolymer, environment-friendly diluent, compound stabilizer, filler, solidification accelerant, bonding accelerant, a water removal agent and a thixotropic agent.The polyurethane prepolymer is prepared from polyether polyol, isocyanate, a catalyst and environment-friendly diluent.The low-TVOC polyurethane weather-proof sealant has the advantages of being low in TVOC, good in application property, quick in solidification, outstanding in weather-proof effect, free of rainwater flushing print and good in mechanical performance.After the low-TVOC polyurethane weather-proof sealant is applied, the phenomena of fracturing, pulverization and black water flowing happen in one year in the atmosphere environment, and the mechanical performance retention rate of the low-TVOC polyurethane weather-proof sealant ranges from about 80% to about 120%.

The invention discloses an entrance guard system based on the internet of things. The system comprises entrance guard electronic locks, electronic lock two-dimensional codes printed on the electronic locks, a mobile device, an internet server and an internet-of-things module. The entrance guard electronic locks are used for controlling opening and closing of a door. The internet-of-things module is used for data interaction of the entrance guard electronic locks and the internet server and controls the entrance guard electronic locks. The internet server is used for saving feature information data of the mobile device corresponding to the entrance guard electronic locks, receiving unlocking requests of the mobile device, authenticating request data and feeding back execution commands to the internet-of-things module. The entrance guard system based on the internet of things and an entrance guard control method are combined with modern technology development and are very valuable, authentication of a traditional entrance guard system is moved from the electronic locks to the internet server, and a lot of manpower and materials can be saved; a user only needs the mobile device to scan the two-dimensional codes printed on the electronic locks and conduct unlocking, no marks are left, and unlocking is convenient and quick.

The invention is concerned with the method of preparation of the Mydriasis ophthalmic preparation. It is the kind of ophthalmic preparation that in liquid form before dripping into eyes but turns to gelatin postural after. It contents Mydriasis agent as the active material and other supplementary materials, such as poloxamer, carbomer, Deacetylcephalomannine Gellan Gum, transition regulator and medicinal acceptable antiseptic, isoosmotic adjustment, PH regulator and injection usage water. It can use of optometry, pre-operation naydriasis, etc. The advantages of the invention are: highly biocompatibility, low pungency, and long lasting.

The invention discloses a quartz stone anti-fouling agent and a preparation method and application thereof. The quartz stone anti-fouling agent comprises the following raw materials in percentage by mass: 6-16% of methyl hydrosilicone oil, 2-8% of hydroxyl-terminated polydimethylsiloxane, 0-5% of methyl silicone oil, 1-2% of cosolvent, 0.5-5% of silane coupling agent and 70-85% of solvent. The quartz stone anti-fouling agent is specially developed for coarse and porous quartz stone which is vulnerable to fouling; and by simply smearing the anti-fouling agent on the surface of the quartz stone, the quartz stone can be effectively protected from oil pens, ink, coffee, tea and other pollutants. The quartz stone anti-fouling agent disclosed by the invention is simple in preparation process, good in anti-fouling property and favorable in scrub resistance and durability, can not influence the surface gloss of the quartz stone, and is non-toxic and non-corrosive, thus not only being applicable to the quartz stone, but also being applicable to agglomerated stone, marble, matt tiles and the like.

The white board pen ink has the recipe comprising pigment 3.5-5.0 %, uncapping agent 1.0-5.0 %, alcohol 48.0-71.0 %, propanol 15.0-25.0 %, erasing agent 5.0-10.0 %, resin 3.5-5.0 %, and dispersant 1.0-2.0 %. Its making process includes the following steps: mixing all the materials via stirring, grinding for 20-30 hr to reach pigment granularity of D50=120-200 nm, and discharging. The white board pen ink has fluent writing and high storage stability, is suitable for writing on white board, glass, plastic product, etc, and may be fitted to various kinds of pens.

The invention is a kind of extinguishing device which uses liquid nitrogen as extinguishing agent. The tin is made upof stainless steel wire vacuum clamp and adiabatic outer laye which is winded by aluminium and platinum. There is pressure gage, liquid leveler, air relief valve, safety valve. The bottom has a liquid charging valve and a purifying valve; one side has a evaporating device and the other side has a liquid nitrogen setting device. The electric control system is made up of linkage controller, extinguishing control plate, temperature sensing detector, annunciator and CRT monitoring device, they are connected by circuit. The control is divided into manual control and automatic control. The liquid nitrogen setting device is made up of electric self-control valve, ultralow temperature liquid pump, adiabatic pipe and nozzle.

The invention discloses a building partition wall with easy disassembly and assembly. The building partition wall is characterized by at least comprising two partition wall units, wherein the two partition wall units are vertically connected and encloses into a cubic building space with two building inner walls, a roof and the ground; each partition wall unit mainly comprises a partition board, a lifting bottom support component and a top support; the partition board is a rectangular board, the upper end of the partition board is connected with the top support, and the lower end of the partition board is movably connected with the lifting bottom support component; the partition wall units stand on the ground; and the partition boards and the top support connected at the upper ends of the partition boards can be lifted together by adjusting the lifting bottom support component till the top support presses on the roof. The building partition wall disclosed by the invention has the advantages that the partition walls can be arranged in the existing building temporally or semi-permanently, so that the quantity of rooms in a house is increased and the requirement for occupying more rooms is met.

The invention relates to a green general-purpose cleaning agent which is a compound composed by solvent, washing assistant, surface active agent and deionized water. The solvent is a carbonic ether type green solvent, the surface active agent contains at least one or more kinds of AEO, APG and EMS. The cleaning agent is used for cleaning various hard surfaces and is suitable for home cleaning andpublic location cleaning. The cleaning agent has advantages of simple operation, rapid and convenient. The cleaning agent is no-poisonous and no-harm to environment and biology which accords cleaningagent developing current and has better application prospect.

The invention discloses a cleaning agent for electric mechanical equipment. The cleaning agent comprises the following components according to mass percentage: 2 to 12% of dichloromethane, 15 to 30% of tetrachloroethylene, 5 to 25% of D40 solvent oil, 16 to 35% of monofluorodichloroethane, 30 to 40% of D60 solvent oil and 0.1 to 1% of orange peel oil. The cleaning agent for the electric mechanical equipment is economical and practical and good in cleaning effect, causes no corrosion to a metal, aluminum, non-metal or painted surface, and is an aviation chemical product effectively used for cleaning a civil aircraft.

The invention discloses a water-series fire extinguishing agent. The water-series fire extinguishing agent comprises 1.6 parts by weight of environment-friendly 4-6 fluorocarbon surfactant, 0.08 partby weight of plant cellulose, 1.6 parts by weight of inorganic salt, 1.0 part by weight of antifreeze agent, 0.3 part by weight of penetrating agent, 2.0 parts by weight of xanthan gum, 35 parts by weight of environment-friendly fire retardant and 58.42 parts by weight of deionized water.

The invention discloses an LED-UV (light-emitting diode-ultraviolet) anti-doodling pollution-resisting coating, which can be used to coat the surface, which is polished and cleanly dedusted in advance, of a to-be-coated object through brush coating or spray coating according to the coating weight to 80g / m<2>; photocuring is performed immediately through illuminating by a portable LED-UV lamp for 5 to 8 seconds after the brush coating is finished; the LED-UV anti-doodling pollution-resisting coating is prepared from the following components in parts by weight: 25 to 35 parts of 4.5 functional silicofluoride acrylate resin, 21 to 30 parts of low-energy cured special functional acrylic resin, 10 to 20 parts of 8 functional hyperbranched polyester acrylic resin, 20 to 25 parts of monomer, 4 to 5 parts of photoinitiator, 0.3 to 0.5 part of wetting dispersant, 0.3 to 0.5 part of defoamer and 0.6 to 0.8 part of anti-doodling additive; a paint film has excellent properties of anti-doodling, pollution prevention, easiness in cleaning, water proofing, oil resistance and chemical resistance; the paint film is compact and smooth, and is high in hardness and good in pollution tolerance.

The invention relates to an environment-friendly water-based extinguishing agent. The environment-friendly water-based extinguishing agent comprises, by weight, 0.8 part of environment-friendly 4-6 fluorocarbon surface active agents, 0.5 part of plant cellulose, 16 parts of inorganic salt, 3.5 parts of antifreeze agents, 0.15 part of penetrating agents, 0.25 part of xanthan gum, 5.5 parts of environment-friendly flame retardants, and 73.3 parts of deionized water.

The invention discloses a system for rinsing and drying a wafer and a method for cleaning and drying the wafer by using the system. The system includes a main body and a bottom supporting device for supporting the wafer. The main body can accommodate the wafers of different sizes. The bottom supporting device drives the wafer to rotate around an axis. The system also includes a rotating swing armand a bottom pipeline structure for providing cleaning liquid and gas and mixed gas for drying. According to the invention, through the arrangement of one or more wet spraying components on the end ofthe swing arm and a fixing plate on the bottom supporting device, the gas and liquid are sprayed to cover the upper and lower surfaces of the whole wafer, and through the arrangement of one or more gas solvent spraying components on the end of the swing arm, the mixed gas for drying is sprayed to cover the upper surface of the whole wafer. Therefore, the upper and lower surfaces of the wafer canbe effectively dried without leaving liquid traces.

The present invention is especially the recipe and preparation process of paint with stably dispersed nanometer powder. The present invention solves the problem of dispersing nanometer powder in paint stably and effectively. The nanometer modified paint prepared based on the present invention has no toxicity and no smell, and is scrub resistant, pollution resistant, high in elasticity, fungus resistant, antiseptic and ageing resistant.

The invention relates to a bottom glue erasing liquid for cleaning bottom glue residue of non-setting adhesives, instant plasters, double-sided adhesives, and other products of the kind. The bottom glue erasing liquid comprises the following components by volume fraction: 6% ~ 35% of acetone; 10% ~ 40% of ethyl acetate ethanol; 15% ~ 30% of ethanol; 1% ~ 4% of OP emulsifier; 10% ~ 25% of ammonia; 3% -10% of N,N- dimethylformamide; 5% ~ 20% of turpentine; and 0.2% ~ 2% of a spice. The components are mixed proportionally and stirred in 500 ~ 1000 rpm / min for 5 to 30 minutes to obtain the bottom glue erasing liquid, the bottom glue erasing liquid is directly sprayed on glue mark surface, after waiting for 3 to 15 minutes, the glue mark surface is softened and deformed, and then is wiped with a cloth, and no mark is left.

The invention discloses a white-board pen ink and preparing method, which comprises the following parts: 3.5-5.0% dye,1.0-5.0% decapping agent,48.0-71.0% alcohol,15.0-25.0% propanol,5.0- 10.0% erasable agent,3.5-5.0% resin and 1.0-2.0% dispersant. the preparing method comprises the following steps: adding alcohol and propanol in the predispersing stove; stirring to add decapping agent, erasable agent, resin and dispersant until dissolving evenly; adding dye; stirring completely; grinding for 20-30h until the grain size D50 of dye particle reaches 120-200nm; discharging.

The invention discloses a water scraping rake device comprising a bracket installed with two impellers. The bracket is connected with a semiarc connecting board of which two ends are respectively connected with a fender wheel, and the water scraping rake device is also provided with a water scraping rake angle adjusting screw; the semiarc connecting board is composed of a front semiarc clamp, a rear semiarc clamp and a panel; the front rubber sheet of the water scraping rake is fixed on the front semiarc clamp by a batten, and the rear rubber sheet of the water scraping rake is fixed on the rear semiarc clamp by the batten; the front rubber sheet of the water scraping rake, the rear rubber sheet of the water scraping rake, the panel and a brushed ground form a semienclosed cavity; the panel is provided with a sewage adsorbing pipe orifice; and the fixed bracket is provided with a counterweight stone roller. When arranged on an electric floor cleaning machine, the device can remove sewage produced by the electric floor cleaning machine once without any trace.

The invention relates to a cleaning agent for papermaking felt, which comprises the following components in percentage by weight: 6.6-15.4% of surfactant, 0.1-0.6% of benzotriazole, 0.4-2.7% of anhydrous sodium silicate, 1.15-4.55% of sodium hydroxide, 0.25-0.95% of ethylenediamine tetraacetic acid and the balance of water. The surfactant is dodecylbenzene sulfonic acid and nonylphenol polyethenoxy ether. The water-based cleaning agent for papermaking felt has the advantages of energy saving, environmental protection, low price and high efficiency, and can replace the traditional products. The product can effectively clean various papermaking felt stemmings and complex-composition felt dirt, is universal for various types of papermaking felt, has high safe dilution rate, and does not damage the felt and the press roll surfaces.

The invention discloses water-based tearable film sol resin for vehicle paint protection. The water-based tearable film sol resin is prepared from the following components in parts by weight: 50-70 parts of water-based polyurethane resin, 5-15 parts of a water-based acrylic emulsion, 5-15 parts of modified silica sol, 1-3 parts of a leveling thickening agent, 1-3 parts of a wetting dispersant, 2-5parts of a coalescing agent, 1-3 parts of a stripping promoting agent, 0-1 part of a defoaming agent, and 10-20 parts of water. According to the invention, the waterborne tearable film adopts waterborne polyurethane resin as a matrix, wherein the toughness and hardness of the film can be enhanced respectively by the water-based acrylic emulsion and the modified silica sol, so that by means of theformula, the prepared water-based tearable film for car paint protection has the characteristics of good toughness, high glossiness, transparency, wear resistance, excellent protection performance, adjustable adhesion, adjustable hardness and the like. The product can effectively prevent car paint from being scratched and damaged, adopts water as a solvent, and is environment-friendly and pollution-free.

The invention discloses a plane restoration tool, which mainly comprises an openable support frame and a pulling rod sucker sleeved on the support frame, wherein the lower part of a tubular body of the openable support frame is connected with a leg through a pin roll; the outer wall of the tubular body is in thread twisting with a nut which can move up and down; the nut is sleeved with a steadying bar; the lower end of the steadying bar is connected with the leg through the pin roll; the pulling rod sucker is sleeved in a lower pulling rod by a lower end plunger of an upper pulling rod; the lower end of the lower pulling rod is sleeved with a rubber sucker; a permanent magnet of a superimposing magnetic outfield is built in the sucker, and has a threading structure twisted with the bottom end of the lower pulling rod; the pulling rod sucker is sleeved in an inner cavity of the tubular body of the openable support frame; and a nut is twisted with a threading structure on the upper end of the pulling rod sucker. The plane restoration tool can restore a ware from a sunken position without any mark and the restored ware is approximate the original state.

The invention discloses an interactive electronic whiteboard with a video communication function. The interactive electronic whiteboard comprises an electronic whiteboard body (7), wherein a control mainboard (2) and a computer or a flat computer or a mobile phone which is connected with the electronic whiteboard body (7) are arranged in a frame (74) of the electronic whiteboard body (7). The interactive electronic whiteboard also comprises a camera (1), wherein the camera (1) is arranged in the upper frame of the frame (74) of the electronic whiteboard body (7); the camera (1) consists of an optical lens, an optical sensor and a control transmission chip which are connected in sequence; and the optical sensor is connected with the computer or the flat computer or the mobile phone through the control transmission chip. The setting of the camera can provide the video communication function, so that the problem that an electronic whiteboard cannot realize visual communication at present is solved.

The invention discloses a sewage sucking device installed on a scrubber. The sewage sucking device comprises a fan, a sewage tank, an air draft hose, a sewage pipe and a sewage draining exit. The top inside the sewage tank is provided with an overflow groove, an air outlet of the overflow groove is communicated with the air draft hose outside the sewage tank and an air inlet of the overflow groove is downward; the overflow groove is internally provided with a cylindrical filter screen in which a floating ball is put, and the radius of the floating ball is more than that of the air outlet; and the upper part of the lateral side of the sewage tank is connected with the sewage pipe that is connected with a wiping rake. With the wiping rake, the sewage sucking device can suck the sewage on the ground cleanly and leave no marks.

The invention discloses a production technology of a simulated beautifying plastic module for a human face, which comprises the following steps: mixing a certain proportion of toner, fluorescein, resorcinolphthalein, white toner, lipoprotein, dibasic lead phosphate and tribasic lead sulfate; milling the mixture with a small amount of dioctylphthalate to be uniformly mixed and stirred with a proper amount of dioctylphthalate, PVC resin, stabilizer A, heat-resistant oil A, zinc powder and calcium powder in a storage tank of a pulping machine; filtering impurities in a filtering basin, and depositing and despumating serous fluid; then, pouring the filtered serous fluid into a heated mould, and pouring the redundant serous fluid out after the serous fluid stays in the mould for 60-75 seconds; putting the mould in a rubber stove to be heated for 60-120 seconds, taking the mould out, putting the mould in water with room temperature to be cooled for 10-15 seconds, and then, forming a beautifying module; and finally, soaking the beautifying module in a lucent softener for 5-10 minutes to enable the beautifying module to be smoother and softer. The beautifying module produced by the technology of the invention has the advantages of good simulated effect, repeated use, abundant colors and various shapes.

The invention relates to ultraviolet cured high-anti-fouling matte floor paint. The ultraviolet cured high-anti-fouling matte floor paint comprises the following raw materials: modified polyurethane acrylate resin, polyester acrylate resin, bifunctional group active monomers, three-functional group active monomer, four-functional group active monomer, a flatting agent, a defoaming agent, a dispersing agent, an initiator, matting powder and modified polytetrafluoroethylene powder. The preparation method comprises the following steps: (1) preparing a raw material; (2) dispersing the raw material; (3) adding the initiator; and (4) filtering and packaging. A paint film of the invention is semi-transparent, the glossiness is 6 to 8, the ultraviolet cured high-anti-fouling matte floor paint belongs to the matte floor paint and contains no organic solvent, has excellent anti-fouling performance, seepage resistance and corrosion resistance, good toughness, adhesion, wear resistance and scratchresistance, and can compensate the blank of the domestic matte floor paint market; the preparation method is simple in procedures, high in operability, and easy in mass production; the conventional pollution source mark can be easily cleaned after being dried; and the requirement of customers for individual high-end floor paint can be met.