281results about How to "Good volatilization effect" patented technology

An anticollision protecting fence material for highway is prepared from ultrahigh molecular weight polyethene (UHMWPE) through pre-swelling, dissolving and pugging in dual-screw extruder, extruding out for shaping, and stretching for strengthening. It has high longitudinal tension strength (100-180 MPa) and large longitudinal elongation rate at break (50-350%).

The invention discloses a high-efficiency industrial gas which comprises the raw materials: industrial propane gas with the purity higher than 95% (weight percent), and liquid-phase synergistic additive accounting for 0.3-1.0% (weight percent) of the industrial propane gas. By adding a little liquid-phase synergistic additive into the propane gas, the high-efficiency industrial gas remarkably improves the burning temperature and efficiency; meanwhile, the liquid-phase synergistic additive of the high-efficiency industrial gas has low corrosivity for a container and good volatility.

The invention belongs to the technical field of plant microscopic observation and discloses a paraffin sectioning method for eucalyptus tissue. The method comprises the steps of preparing materials, fixing, washing, dehydrating, performing a transparency treatment, waxing, embedding, sectioning, displaying the sections, adhering the sections, roasting the sections, dewaxing and rehydrating, dyeing, dehydrating, redyeing and enclosing the sections. According to the paraffin sectioning method for the eucalyptus tissue, utilized novel stationary liquid polyhydroxyl acrylic acid has high speed, can largely shorten the fixing time and can balance the fixing; meanwhile, xylene replaces with a safe and nontoxic TO transparent reagent, the TO transparent agent can be solved with alcohol of 95% at 25 DEG C or above, can solve paraffin and sealed vegetable glue, has excellent volatility without bad influence on dyeing of common biological dye, and has relatively better transparency and dewaxing effects, and after the transparency treatment is performed, the tissue is unlikely to embrittle, the sections can keep complete; furthermore, neutral vegetable glue replaces with a section sealing agent CVmount. After the fixing, dehydrating and section sealing steps during optimization of paraffin sections are performed, the section production cycle is shortened by at least 72 hours on the premise of ensuring the sectioning effect.

2499. The invention provides a multilayer coextrusion heat shrinking film which comprises a surface layer, a sandwich layer and a heat-sealing layer. The surface layer and the heat-sealing layer are respectively bonded with the sandwich layer through a bonding layer; the sandwich layer comprises a mixture composed of 98Wt% of PVDC resin and 2Wt% of processing aid, wherein, the PVDC resin is a VDC-MA copolymer, the melting point is 150 DEG C, the density is 1.7g / cm<3>, and the processing aid is epoxidized soybean oil or other plasticizing agent systems. The proposal increases the shrinkage factor of the multilayer coextrusion heat shrinking film, and improves the barrier property; the multilayer coextrusion heat shrinking film has excellent heat sealing performance, and is widely applied to the vacuum shrink package.

The invention discloses a method for extracting multifunctional sulforaphane from broccoli sprouting vegetable. The method comprises: fresh broccoli sprouting vegetable which grows for 6-10 days is taken as raw material, and is then crushed to be 100 meshes of sieve after being frozen and dried; after that, 100 parts by weight of the processed material is taken to be added with de-ionized water, methylene dichloride, 0.001-0.003 parts by weight of Vc and 0.1-0.3 parts by weight of Na2S, the pH value is adjusted to be 4-6, and the mixed solution is hydrolyzed for 6-10h at 15-35 DEG C; finally, the sulforaphane is obtained after being filtered, washed and purified. As the broccoli sprouting vegetable which grows for 6-10 days is taken as raw material, the method can effectively increase the production rate of the sulforaphane and plays the role of activation for using myrosase to hydrolyze sulpho-glucoside by adding the Vc; meanwhile, sodium sulfide is added for overcoming the interference of Fe in the material, thus improving the production rate of the sulforaphane. The obtained sulforaphane has multiple functions such as cancer resistance, oxidation resistance and the like as well as good application prospect.

The invention provides a method for preparing tobacco extract by utilizing waste and inferior tobacco leaves. The tobacco extract is prepared through the following steps: mixing tobacco powder, tobacco leaf fragments and tobacco stems in a cigarette manufacturing department and adding the mixture into an ethanol solution for extracting; decompressing and concentrating; then adding pure water and glucose in sequence; after uniformly stirring, adding cellulase and subtilisin in sequence to carry out enzymolysis; then adding the mixture subject to enzymolysis into the ethanol solution and standing; filtering with a ceramic film; and decompressing and concentrating and then carrying out molecular distillation and separation. According to the method, efficient, rapid, energy-saving and environment-friendly effects are achieved; prepared molecular distillate has a real aroma and the taste is remarkably improved; the product is used as essence and spice for cigarettes so that the aroma of the cigarettes can be obviously improved; and meanwhile, the product also has soft, fine and smooth smoke and has the effects of improving the sweet feeling of the oral cavity and improving the smoke volatility.

The invention discloses a fragile soft capsule and a preparation method thereof. The fragile soft capsule comprises a core material and a capsule wall material wrapping the outside of the core material. The capsule wall material is composed of water, a gelatinizing agent, a filling agent and a plasticizer. The core material is lipophilicity edible essences or flavoring essences. The preparation method of the fragile soft capsule includes the steps that raw materials for preparing the capsule wall material are put into a glue pot first, so that a hydrophilia liquid phase is prepared, then the lipophilicity core material is coated, and a seamless capsule is prepared through a coextrusion method; after the seamless capsule is placed into solidification liquid to be soaked, cleaning and air drying are carried out, and finally the fragile soft capsule is prepared. The fragile soft capsule has the advantages of being stable in form at a normal temperature, not prone to volatilizing, and capable of being extruded and crumbed at will according to the habit of a smoker.

The present invention discloses a production method of kerosene solvent naphtha and its catalyst for said method. In said method the raw material oil is straight-run kerosene or hydrocracked kerosenefraction with 130-300 deg.c, and a hydrogenation method is adopted to produce high-quality kerosene solvent naphtha. Said used hydrogenation catalyst is W-Ni-TiO2-Al2O3 or W-Mo-Ni / TiO2-Al2O3, and thehydrogen fractional pressure required for hydrogenation is 6.0-15.0 MPa, reaction temp. is 220-360 deg.C, and the volume space velocity is 0.3-2.0 h(-1), and the hydrogen-oil volume ratio is 300-800.The product produced by using said invented mether is white in colour, and is non-toxic, harmless and smelless, its sulful and nitrogen contents are less than 1 microgram / g, and its arene content is less than 200 microgram / g.

The invention relates to a method of making a 35Kv environmental-protection Class-A fireproof power cable for subway main lines, selecting a tightly-compressed and intertwisted circular conductor, coating the external surface of the conductor with a semiconductor material and a cross-linked polytene material in turn, adopting an oxide cross-linking or electronic irradiation technique to graft flame-retardant molecules and carbon-forming units onto the cross-linked polytene material, then coating with a copper band, then winding many layers of high flame-retardant gelatinized glass cloth bands on the copper band, using a copper band for butt welding in the axial direction of an insulated line core on the glass cloth winding layer and rolling into a ripple metallic tube, making a thermal-protecting coating on the ripple metallic tube and finally extruding a low-smoke, halogen-free, flame-retardant and environmental-protection polyolefin material outer jacket on the heat insulating layer. Its flame retardancy can meet the requirement of 1A-level flame-retardant test, and they have low burning losses, high photo-permeability and small toxicity. It has the properties of moisture proofing and preventing bio-disoperation like termite resistance, mouse preventing property, etc.

The invention belongs to the field of grain storage, and particularly relates to a cinnamon oil contained insect repelling mildew preventive for grain storage. The insect repelling mildew preventive is prepared from the following raw materials in parts by weight: 10-15 parts of cinnamon oil, 6-10 parts of garlic essential oil, 3-5 parts of clove essential oil, 0.5-2 parts of lemongrass essential oil, 1-3 parts of essential oil of zanthoxylum maxim, 2-5 parts of star anise oil and 50-65 parts of ethanol. The insect repelling mildew preventive is prepared from natural plant essential oil, is safe and environmentally friendly and is free of pollution, and each single raw material or the combination adopted by the insect repelling mildew preventive has uniquefungicidal and anti-bacterial effects and has an distinct effect of killing common pests in a grain storage granary in a fumigation and contact manner.

The invention discloses ultra-low-viscosity energy-saving gasoline engine oil and a preparation method thereof. The ultra-low-viscosity energy-saving gasoline engine oil is composed of, by mass, 8.5-12.5% of a steam turbine oil complexing agent, 0.1-0.5% of antioxygen, 1-5% of viscosity index improver, 0-0.8% of an antiwear agent, 0.002-0.005% of an anti-foaming agent and the balance synthetic base oil. According to the base oil, alpha-olefin, esters and polyester oil are selected in cooperation with the special viscosity index improver, the mixture is combined and blended into ultra-low-viscosity totally-synthesized gasoline engine oil with the viscosity meeting the standard, characteristics of alpha-olefin type oil and ester type oil are utilized and reasonably matched, and the ultra-low-viscosity totally-synthesized gasoline engine oil which is excellent in performance is prepared; according to the ultra-low-viscosity energy-saving gasoline engine oil and the preparation method thereof, an anti-wear reinforcing agent is added to serve as oil soluble organic molybdenum and organic tungsten, the organic molybdenum and organic tungsten are used in a joint mode, engine oil plays good anti-wear and friction reduction functions in the whole stage of operation of an engine, the phenomena that the oil temperature is excessively high, and thus oil is oxidized and goes bad due to excessively high friction are effectively avoided.

The invention discloses a method for producing pepper oil with stable quality and a high spicy degree. The method includes the steps that (1) dry pepper raw materials are crushed, steam distillation is carried out, and pepper aromatic oil is obtained after oil-water separation; (2) pepper powder obtained after steam distillation is extracted through ethyl acetate, solvents with pepper resin are obtained through filtering, 5% sodium hydroxides are added into the solvents, heating and stirring are carried out for two hours, then the solvents are cooled to be at the room temperature, ethyl acetate solvents are obtained after separation, activated carbon is added for adsorption, the solvents are obtained after filtering, reduced pressure distillation is carried out for concentration, and pepper oil resin with the high spicy degree and good fluidity is obtained; (3) pepper aromatic oil obtained in the step (1) and the pepper resin obtained in the step (2) are mixed, and a pepper oil product with stable quality is obtained. The proportion of pepper spicy substances and pepper aromatic substances is controllable, the content of pectin and polysaccharide is little, foreign flavor does not exist, the smell and flavor are pure, the fluidity is good, meanwhile, the oil solubility is good, emulsifier does not need to be added during dissolving, suspended matter and sediments do not exist, and transparency is high.

The invention discloses cupric ion test paper and a preparation method. The cupric ion test paper of the invention includes a chromogenic piece, and chromogenic substance spiropyran in the chromogenic piece, the chromogenic piece can be chromatography, qualitative, and quantitative filter paper. The invention also includes a base plate, the chromogenic piece is arrange on the base plate, the base plate can be a hardness paper piece which is a polystyrene base plate or white color and non-absorbent. The cupric ion test paper of the invention has a flowing reparation method, which steps include that: a) spiropyran solution is prepared; b) the chromogenic piece is dipped into the spiropyran solution; c) the chromogenic piece is taken out from the spiropyran solution and is dried, further include d) one or more chromogenic pieces which are dried are fixed on the base plate, the chromogenic pieces can be fixed in row or in cascading. The test paper of the invention is easy to use, high sensitivity, greater selectivity and stability, easy to preserve and is applicable for detecting consistency of bivalent cupric ion in water solution.

The invention discloses a tobacco-stem fiber composite filter rod and a production method thereof. The tobacco-stem fiber composite filter rods are binary or ternary composite filter rods composited by tobacco-stem fiber base rods and ordinary cellulose acetate fiber base rods. The manufacturing method includes that tobacco stems are ground to prepare tobacco-stem fibers, water extract of the tobacco stems is sprayed on the surfaces of the tobacco stems, and the tobacco stems are dried to be production into the base rods and further composited with the ordinary cellulose acetate fiber base rods into the binary or the ternary composite fiber rods. The tobacco-stem fiber composite filter rods produced are good in tar reduction, and original fragrance of the tobacco stems can be sustained. The production method is simple in operation, low in equipment requirement, low in cost and suitable for industrial production.

The invention relates to the technical field of paint, and in particular relates to an oily polyurethane transparent primer for decoration and a preparation method thereof. The oily polyurethane transparent primer comprises a component A, a component B and a diluting agent, wherein the weight part ratio of the component A to the component B is 2:1; the component A comprises modified low-molecular-weight polyol resin, an ester solvent, a dispersing agent, polishing powder, talcum powder, a defoaming agent, a flatting agent and an anti-precipitation agent. The oily polyurethane transparent primer maintains the advantages of the traditional polyurethane paint, such as good construction property, good water tolerance and high hardness; and simultaneously, tasteless effect can also be achieved after drying on the basis of low VOC (volatile organic compound).

The invention particularly relates to a formulation of wood-plastic profile as well as a preparation method and a manufacturing device thereof. The formula is characterized by being prepared from the following raw materials in parts: 100 parts of PP waste plastic with good mobility, 20 to 75 parts of wood powder, 5 to 15 parts of flexibilizer; 2 to 10 parts of compatibilizer; 1 to 10 parts of lubricant; 0.1 to 1 part of main antioxidant; 0.1 to 0.5 part of auxiliary antioxidant; 0.02 to 0.5 part of light stabilizer and 0.1 to 4 parts of antibacterial agents; the preparation method is characterized by comprising the following steps:(1) recycling the PP waste plastic with good mobility; (2) cleaning, crushing and drying; 3) drying the wood powder; 4) extruding and granulating; and 5) extruding and molding; and the manufacturing device is characterized by comprising a plastic cleaning device, a wood powder drying device, a weighing device, a mixing device, an extrusion granulation device and an extrusion molding device. The invention has the advantages of low cost, durability, long life, good heat resistance, good resistance to ultraviolet rays, high hardness and high load capacity.

The invention discloses an EVOH (ethylene vinyl alcohol) resin and a preparation method thereof and relates to a resin and a preparation method thereof, and the method provided by the invention can be used for solving the problems of complex process for the production of the EVOH resin and large production difficulty in traditional methods. The EVOH resin is prepared through the following steps: stirring polyvinyl alcohol, a plasticizer, an ethylene unsaturated monomer, maleic anhydride graft polypropylene resin, an initiator, a catalyst, an anti-yellowing agent and a surfactant, and then pelletizing the mixture in a double-screw extruder. The method provided by the invention is simple in process and small in equipment investment, and the EVOH resin has the advantage of stable quality.

The invention relates to a non-toxic carpet cleaning agent without the need of water washing and special washing machine and the preparation method thereof. The invention takes fatty alcohol polyoxyethylene ether (9), fatty alcohol polyoxyethylene ether (7), fatty alcohol polyoxyethylene ether (20), fatty alcohol polyoxyethylene ether sodium sulfate, alkyl glucoside, alcohol, citric acid, diatomite, starch, essence and deionized water as the raw materials; when in preparation, the fatty alcohol polyoxyethylene ether (9), the fatty alcohol polyoxyethylene ether (7), the fatty alcohol polyoxyethylene ether (20), the fatty alcohol polyoxyethylene ether sodium sulfate and the alkyl glucoside are mixed, the alcohol is added at the same time of stirring; after the raw materials are dissolved in the alcohol and stirred evenly, the essence and the deionized water are added for even stirring, and the pH value is adjusted to 6.5 to 8.0 by using the citric acid, so as to obtain a liquid base material; the diatomite and the starch are added in a stirring machine, the liquid base material is added at the same time of stirring, and the stirring is carried out for 2 to 3 minutes after all the materials are added, so as to obtain the non-toxic carpet cleaning agent without the need of water washing and special washing machine.

The invention aims to provide a seed treatment agent composition having mouse or bird repellent effects and an application method thereof and provides a composition of a suspension concentrate for seed dressing and a sustained release repellent. The contact between seeds and chemical components is reduced to the largest extent through layered coating, the goal of driving mice or birds can be achieved while insect killing and sterilization for promoting plant growth are achieved, the goal of adding a sustained release agent is to reduce the influence of the repellent on pesticide active ingredients and avoid pesticide hazard, and the mouse and bird repellent duration of the repellent can be prolonged. The composition can be widely applied to agriculture, forestry and grassland farming seed ratproof treatment, and the blank of a seed treatment agent in the function is filled.

The invention relates to a method of producing xylose and xylitol and co-producing L-arabinose by bagasse. The method comprises the following steps: first, treating the bagasse; then, producing xylose by the bagasse; and respectively producing xylitol and arabinose by the product xylose and a xylose mother liquid. By using the bagasse as a raw material, the method provided by the invention obtains crystallized xylose and further products of xylitol and L-arabinose which are high in additional value and are widely applied to the fields of foods and medicines through a whole set of process line. The method provided by the invention is simple to operate, novel in technology, low in cost, diversified in product and high in economic value, is a process method which is initiated at home for co-producing functional sugar alcohols and rare sugar products by bagasse, and has an extremely wide application value.

The invention discloses an ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil, and belongs to the field of protecting grain agricultural products in storage from biology invasion by utilizing a fumigant. An object of the method provided by the invention is to protect the grain agricultural products from the biology invasion from a period that the products are stored in a warehouse to a period that the products are out of the warehouse. The composite essential oil provided by the invention is prepared from five kinds of essential oil comprising litsea cubeba oil, cassia oil, clove oil, wrinkled giant hyssop oil and geranium oil in a ratio of 7:1:1:0.5:0.5. The composite essential oil is fumigated and atomized by an ultrasonic atomization fumigating device to fumigate the storage agricultural products, so that the insect-expelling and anti-microbial for the storage agricultural products are achieved. The ultrasonic atomization fumigating device mainly comprises an atomization system and an air-blasting system. The composite essential oil is scattered by an ultrasonic energy converter to generate micro-scale droplets so that the fumigant is atomized. The air-blasting system promotes gasification and diffusion of the essential oil droplets, the essential oil droplets permeate mitochondrial respiratory systems of insects and microorganisms to generate biology effects, so that the insect-expelling and the anti-mildew for the warehouse are achieved.

The invention discloses an alcohol-soluble printing ink and a preparation method thereof. The ink consists of the following materials in part by weight: 12 to 18 parts of 20 to 50 percent of polyamide resin alcoholic solution, 1 to 5 parts of 25 to 60 percent of nitrocotton alcoholic solution, 12 to 32 parts of pigment, 0.05 to 0.3 parts of dispersing agent, 0.08 to 0.4 parts of tackifier and 2 to 10 parts of filling agent. The preparation technique for the ink includes the following steps: first preparing the alcohol-soluble polyamide resin alcoholic solution and blending a small amount of nitrocotton alcoholic solution, then adding the pigment, the dispersing agent, the tackifier and other auxiliaries, grinding the mixture into micron-grade grain size in a sand mill after about 30 minutes of high-speed dispersion, finally adding ethanol and other solvents to regulate the viscosity of the ink, continuing with dispersion for more than 10 minutes until the ink body becomes uniform, and carrying out inspection, discharging and packaging. Since the alcohol-soluble ink does not contain benzene solvent, no benzene solvent harms the bodies of people producing, using and touching the ink, and the pollution of the atmosphere and the environment, which is caused by the emission of toxic gas, is greatly reduced.

The invention discloses duck essence and a production process thereof. The duck essence is prepared from the following raw materials: 2-methylpentaldehyde, valeraldehyde, hexanal, 2-methylbutyraldehyde, 3-methylthiopropanal, octanal, heptanal, dimethyl trisulfide, 1-octylene-3-alcohol, nonanal, capraldehyde, trans-2-decenal, 2-nonenal, trans-2-cis-6-nonadienaldehyde, trans, cis-2,4-octadienal, dimethyl disulfide, anise camphor, 4-hydroxy-2,5-methyl-3(2H)-furanone, 2-acetylpyrazine, 2-methyl-3-furanthiol, di(2-methyl-3-furyl) disulfide, 4-methyl-5-ethoxy thiazole, 2-methylpyrazine, 2,3,5-trimethylpyrazine, 2-ethyl-3,5 (or 6)-dimethyl pyrazine, furfuryl disulfide, 2,4,5-trimethyl thiazole, 2,4,6-tri-isobutyl-1,3,5-dithiazine, 1,6-ethanthiol, 2-pentylthiophene, furfuryl mercaptan, 4,5-dimethyl-2-isobutyl-3-thiazoline, guaiacol, delta-dodecalactone, 2,4-decadienal, trans, trans-2,4-nonadienaldehyde, anisic aldehyde and an oil-soluble solvent. The invention further discloses a production process of the duck essence.

The invention relates to a composite cable for a flame-retardant fireproof boat and a manufacturing method thereof. A power cable core, a control cable core and an instrument cable core are stranded into a composite cable core; the periphery of the composite cable core is coated with a low-intensity non-woven fabric longitudinally-covered layer; an inner jacket is extruded on the periphery of the low-intensity non-woven fabric longitudinally-covered layer in a wrapping way; the periphery of the inner jacket is coated with an armor braid; and an outer jacket is extruded on the periphery of the armor braid in a wrapping way. The low-intensity non-woven fabric longitudinally-covered layer is completely in fit with each insulated conductor in shape, so that gaps between the low-intensity non-woven fabric longitudinally-covered layer and the insulated cores are eliminated, and flame can be conveniently prevented from being spread inwards; and meanwhile, the inner jacket and the insulated cores are guaranteed not to be adhered, so that the insulated cores are not damaged when the jacket is stripped in the constructing process.

The invention discloses a high temperature resistant coating and a preparation method thereof. The high temperature resistant coating is composed of an A component and a B component, wherein the A component is as follows: 65-68 parts of acrylic resin, 42-45 parts of bisphenol A epoxy resin, 20-25 parts of castor oil, 18-24 parts of mica powder, 12-16 parts of benzyl silicon resin, 20-25 parts of silicone resin, 2-4 parts of defoaming agent, and 45-50 parts of solvent; the B component is as follows: 2-4 parts of rust-inhibiting additive, 10-12 parts of flatting agent, 2-5 parts of catalyst, 8-12 parts of pigment, and 11-13 parts of surfactant. The invention further provides the preparation method of the coating. The coating is not only strong in high temperature resistance and good in fire prevention and corrosion resistance, but also good in adhesion and hard to fall off; the coating is small in surface friction coefficient, friction resistant, various in colors, long in service life, wide in use range, environment-friendly and lowered in cost.

The invention relates to the technical field of aromatherapy, in particular to bactericidal natural plant essential oil aromatherapy as well as a preparation method and an application thereof. According to the natural plant essential oil aromatherapy provided by the applicant, a mild solvent and isoparaffin which are authenticated by FDA are selected, and natural gas smell and sterilization components in plant essential oil are conveyed into air, so that the effects of bacteriostasis and sterilization are achieved, and the natural plant essential oil aromatherapy has good volatility; clear andtransparent aromatherapy can be guaranteed by regulating and controlling the variety and proportion of the raw materials for preparing the aromatherapy, the smells of different plant essential oils are embodied by reasonably selecting different plant essential oils and functional auxiliaries, the smells are improved and enhanced, and the effects of air sterilization, pressure relief, sleep aiding, fatigue elimination, mosquito repelling, insect expelling, deodorization and the like are achieved.

The invention provides a method of producing L-arabinose by a xylose mother liquid. The method comprises the following steps: first, diluting the xylose mother liquid; then, removing glucose by active dry yeast powder; further refining the xylose mother liquid through decoloration, ion exchange and evaporation concentration; then obtaining an L-arabinose component solution and a xylose component solution through a continuous chromatographic mobile bed and respectively crystallizing to obtain an L-arabinose product and a xylose product. The method provided by the invention extracts L-arabinose through the continuous chromatographic mobile bed by using a byproduct xylose mother liquid in production of crystallized xylose by bagasse, is simple in operation, low in technical cost and good in separating effect, and has an extremely wide application valve. The obtained L-arabinose is high in purity and yield.

The invention provides a skin-care sunblock product for infants. The skin-care sunblock product comprises an A phase, a B phase, a C phase and a D phase. The A phase is composed of cetostearyl alcohol olive oil acid ester, cetostearyl alcohol, glyceryl stearate, squalane, simmondsia chinensis seed oil, isohexadecane, nano-zinc oxide, ethylhexyl methoxycinnamate and polydimethylsiloxane. The B phase is composed of water, glycerol, 1,3-propylene glycol, butanediol and EDTA disodium. The C phase is emulgator polyacrylate-13, polyisobutene and polysorbate-20. The D phase is composed of vitamin E, phenoxyethanol, 1,2-octylene glycol and plant desensitizer. The skin-care sunblock product for infants is capable of protecting the delicate skin of the infants and protecting the infants against sunburn, good in moisturizing effect, safer and healthier.

A special lubricating liquid for rolling copper and copper alloy is prepared from 32# universal engine oil, 7# universal engine oil, petroleum sulfosodium, emulsifier and white oil. The deionized water is added some time according to rolling condition. The process for preparing the lubricating liquid includes mixing, agitating or diluting and heating in circulation node with heating temp of 30-50 deg.C.

The invention discloses a method for depositing a metal elementary substance thin film by atmospheric cold plasmas. The method comprises the following steps:step 1, mixed gas is excited and ionized togenerate the atmospheric cold plasmas, and the atmospheric cold plasmas form plasma light flame in a cavity of a nozzle; step 2, a metal compound solution is atomized and then enters the cavity of the nozzle; and step 3, under surrounding protection of the protective gas, the plasma light flame and fog drops generate action, solvent in the fog drops is evaporated, a metal compound in the fog drops is reduced into metal particles, and the metal particles are sprayed onto a substrate to be deposited to form the continuous metal elementary substance thin film. According to the method, the metalelementary substance thin film can be deposited under normal pressure, reaction temperature is low, the method is suitable for a heat sensitive substrate, a vacuum or closed deposition chamber is notneeded, so that the size of the substrate is not limited by space, and application range of the method is expanded; and the metal elementary substance thin film prepared by the method is stable in property, post-processing is not needed, so that the technological process is shortened, and production efficiency is improved.