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32results about How to "Good moisture" patented technology

Female whitening skin-nourishing composition

ActiveCN102512669AUnique pharmacological effectsMiraculous medicinal valueOrganic active ingredientsPeptide/protein ingredientsBiotechnologyMalpighia emarginata
The invention relates to a female whitening skin-nourishing composition, which contains the following components of: by weight, 10-160 parts of saussurea involucrata culture, 100-700 parts of collagen, 20-120 parts of an acerola cherry extract product, 2-40 parts of sodium hyaluronate, and 0-20 parts of a natural sweetener. The composition provided by the invention has substantial efficacy in aspects of antiradiation and antioxidation, can has whitening and skin-nourishing effects for female, and is suitable for female of all ages.
Owner:BEIJING TONGRENTANG HEALTH PHARMA

Nano-fiber anti-microbial fruit-vegetable preservative film with porous structure, and preparation method and application

The invention discloses a nano-fiber anti-microbial fruit-vegetable preservative film with a porous structure, and a preparation method and application. According to the invention, myoporum bontioides leaves are grinded into powder and treated by supercritical extraction, so that a myoporum bontioides extract is obtained; a water solution containing TWEEN-80 is added into the myoporum bontioides extract, and the mixture is filtered, so that a myoporum bontioides supercritical extract solution is obtained; the myoporum bontioides supercritical extract solution, a polyvinyl alcohol solution, a chitosan derivative solution and a nano-titania solution are mixed, so that a mixed spinning solution is obtained; and the mixed spinning solution is treated by spinning of a static spinning machine, so that the nano-fiber anti-microbial fruit-vegetable preservative film with the porous structure is obtained. The preservative film has the advantages of a large specific area, a high porosity, high finger uniformity, good mechanical properties and the like, also has performance such as a good moisture permeable and gas permeable property and a good moldproof and anti-microbial property, and has high application potential in the food packaging field.
Owner:广州怡馨舒生物科技有限公司

Manufacture method of quantum dot color film substrate

The disclosure provides a manufacture method of a quantum dot color film substrate, a high precision quantum dot pattern is formed utilizing a property of moisture varied layer of a photocatalyst achieving better moisture after being radiated by ultraviolet light, manufacture process of a quantum dot pattern is simplified as well as enhancing precision of quantum dot layer pattern, and consuming less quantum dot materials and costs, produced quantum dot color film substrate can improve color saturation and gamut of a display device efficiently, reinforcing color display ability of a display panel
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Plant leaf surface brightening cleanser

The invention relates to a plant leaf surface brightening cleanser, which mainly comprises the following components in parts by weight: 10-18 parts of anionic surfactant, 8-15 parts of nonionic surfactant, 0.1-1.5 parts of hyaluronic acid or hyaluronate, 0.03-0.50 part of citric acid, 0.5-2 parts of lower alcohol, 0.01-0.5 part of preservative and 65-82 parts of deionized water. The hyaluronic acid used in the plant leaf surface brightening cleanser is straight-chain acid mucopolysaccharide which has the advantages that the wettability is good, the cohesion force is strong, the expansion capability is super-strong, the penetrating capability is good, the pore permeability is high, reticular structures are formed when water is absorbed and the reticular structures are attached onto the surfaces of plant leaves. The plant leaf surface brightening cleanser has the advantages that the protection of the plant leaf surfaces is improved, the plant tissues are not damaged, the cleaning effect is better, the pores are not plugged, the brightness of the plant leaf surfaces is improved and the ornamental quality of the plant is improved.
Owner:WENZHOU MEDICAL UNIV

Mildewproof preservative film and preparation method thereof

The invention relates to a mildewproof preservative film. The mildewproof preservative film comprises a base layer and a mildewproof preservative coating arranged on the base layer, wherein the base layer is a biodegradable plastic thin film; the raw materials of the mildewproof preservative coating comprise the following components in percentages by weight: 30% to 60% of main ingredients, 0.1% to10% of a natural extract mold inhibitor and 30% to 65% of a solvent; the main ingredients comprise at least one of modified starch, water-soluble chitosan, an agar modifier, modified rosin and rosinderivatives; and the solvent comprises water and / or ethyl alcohol. The mildewproof preservative film has preferable effects of water and oxygen blocking performance and mildewproof effect, and can bedegraded under a microbial action in nature, so that the mildewproof preservative film is free of pollution to the environment.
Owner:CHANGDE JINDE NEW MATERIAL TECH CO LTD

LED curing roller painting white primer and preparation method and use method thereof

PendingCN113881325AGuaranteed levelingImprove cure speed and toughnessEpoxy resin coatingsPolyester coatingsThioxanthoneStearic acid
The invention provides an LED curing roller painting white primer, and belongs to the technical field of paint. The LED curing roller painting white primer is specifically composed of the following components: epoxy resin, polyester acrylic resin, amino resin, trimethylolpropane tripropionate, polyester acrylic resin, tripropylene glycol diacrylate, adhesive resin, defoamer, wetting dispersant, 2, 4, 6-trimethylbenzoyl-diphenyl, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, 2-isopropyl thioxanthone, zinc stearate, ground calcium carbonate, talcum powder, titanium dioxide, fumed silica, a photoinitiator and active amine. According to the invention, the curing speed and toughness can be enhanced, deep drying and surface drying can be realized, the overall drying and adhesion of the paint can be optimal, and the paint can be conveniently used for coating workpieces which are easy to deform at high temperature.
Owner:河南立邦长润发科技材料有限公司

Membrane electrode for improving voltage distribution uniformity

The invention designs a membrane electrode for improving voltage distribution uniformity. The membrane electrode comprises a diffusion layer with hydrophobicity gradually improved from an air inlet end to an air outlet end, and a catalyst layer with hydrophobicity gradually improved from the air inlet end to the air outlet end. The gradient distribution can be used for overcoming the defects of low voltage caused by insufficient moistening at the air inlet end of an oxygen electrode and voltage reduction caused by water logging of the air outlet end of a battery.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Vegetation recovery system and method for vegetation recovery with system

The invention provides a vegetation recovery system which comprises an exposed hillside with a certain slope or level sandy land, a water cellar arranged in a high position of the hillside or a level position higher than the sandy land, vegetation planting units laid along a sloping surface of the hillside or the sandy land lower than the water cellar, a main flow pipe and branch pipes; the vegetation planting units comprise square plastic frames, crossed four-way pipes located in the centers of the plastic frames and provided with openings on the top surfaces, and cotton yarns located at the openings of the top surfaces of the four-way pipes and extending to the side edges of the plastic frames; the four-way pipes in the centers of the adjacent vegetation planting units are mutually connected via the branch pipes; one end of the main flow pipe is connected with a water outlet at the bottom of the water cellar; and the other end of the main flow pipe is connected with the branch pipe in any vegetation planting unit.The vegetation recovery system employs the vegetation planting units in special structures, is convenient to construct and low in maintenance cost, and does not require manual sprinkling and watering, a plant survival rate is high, and after plants grow, roots of the plants can penetrate into rock or the earth surface and can exert a good water holding and soil fixation effect.The invention further provides a method for vegetation recovery of the hillside or the sandy land exposing the rock with the vegetation recovery system.
Owner:王承辉

Body wash rich in plant extracted essence

A shower milk rich in plant extracts belongs to the technical field of daily chemical products. It comprises the following components prepared by weight: 15-18 parts of alginic acid, 1-5 parts of olive oil, 9-26 parts of nonionic surfactant, 1-5 parts of moisturizing agent, and 1-2 parts of pH regulator parts, pure water 50-60 parts, preservatives 0.01-1 parts, plant extracts 10-15 parts, vitamin A 3-6 parts, shea butter 0.5-5 parts, citric acid 0.05-0.5 parts, polyol 5 ‑20 servings. The invention can not only clean the skin, but also can be antibacterial, anti-inflammatory, and enhance immunity. The pure natural formula is adopted, which is not irritating to the baby's skin, and will not make the baby feel uncomfortable even if it accidentally enters the eyes.
Owner:周国萍

Foundation premix with color changing from shallow to deep, foundation composition and preparation method thereof

The invention relates to a foundation premix with color changing from shallow to deep. The foundation premix comprises titanium dioxide and inorganic pigment, the surface of titanium dioxide is treated by using (Cn'H2n'+1)aSi(OCmH2m+1)4-a (wherein n' is an integer and is greater than and equal to 1, m is 1 or 2, and a is an integer and is greater than or equal to 1 and less than or equal to 3), and the surface of the inorganic pigment is treated by using a compound treating agent comprising (CpH2p+1)bSi(OCqH2q+1)4-b (wherein p is an integer and is greater than and equal to 1, q is 1 or 2, and b is an integer and is greater than or equal to 1 and less than or equal to 3). The invention further relates to a preparation method of the foundation premix and the foundation composition comprising the foundation premix. The foundation composition has the advantages of controllable and quick color changing, high wettability, high covering ability, color diversity, safety, harmlessness, simple production process and high whiteness.
Owner:SHANGHAI CO FUN BIOTECH

Novel nanoalloy root-system-resistant composite coil and preparation method thereof

The invention relates to the field of waterproof materials for buildings and particularly relates to a novel nanoalloy root-system-resistant composite coil and a preparation method thereof. The novelnanoalloy root-system-resistant composite coil comprises a coil, wherein the coil comprises a composite nanoalloy heat-insulating layer, an asphalt-based waterproof layer and a covering layer which are arranged from top to bottom; the composite nanoalloy heat-insulating layer is a tire body, and is a polyolefin nanoalloy heat-insulating layer; the asphalt-based waterproof layer consists of a rubber polymer and an asphalt-based material; the covering layer is a polyethylene silicon oil anti-sticking isolating film or PE (Polyethylene) crossing powerful film. The preparation method comprises thesteps of: preparing the heat-insulating layer, preparing the asphalt-based waterproof layer, carrying out dip-coating and sticking the film and the like. The novel nanoalloy root-system-resistant composite coil can prevent deformation, is strong in tensile strength, tearing resistance and corrosion resistance and good in heat-insulating property, has a root-resistant system capable of resisting puncture of the plant root system, is strong in bonding force, good in waterproof effect and low in applicable-environment requirement; in addition, the novel nanoalloy root-system-resistant compositecoil is unique in process, good in tire-base property, high in waterproof-layer property, simple in whole structure, excellent in property and strong in practicability.
Owner:驻马店中原世家防水防腐保温建材科技有限公司

Solder ball loading method and solder ball loading apparatus

This invention provides a solder ball loading apparatus which enables fine solder balls to be loaded on pads while void is blocked from being caught into bump upon reflow. Inactive gas is supplied and the inactive gas is sucked from a loading cylinder located above a ball arrangement mask so as to gather solder balls. The gathered solder balls are rolled on the ball arrangement mask by moving the loading cylinder horizontally and the solder balls are dropped onto connecting pads on a multilayer printed wiring board through openings in the ball arrangement mask. Oxidation of the solder balls and mixture of voids upon reflow are prevented by loading the solder balls in the atmosphere of inactive gas.
Owner:IBIDEN CO LTD

High-barrier transparent oxide composite film and preparation method thereof

The invention provides a high-barrier transparent oxide composite film. The high-barrier transparent oxide composite film comprises a transparent oxide-coated polyester film, a first adhesive layer, apolyamide film, a second adhesive layer and a polypropylene film which are sequentially arranged. The transparent oxide-coated polyester film is used as the outermost layer, and the polyamide film isused as the middle layer, so the composite film has good gas and oil barrier properties, also has good mechanical properties and excellent thermal stability, and is beneficial to exerting the excellent puncture resistance of the polyamide film; the polypropylene film is used as the inner layer, so the composite film has an excellent heat-sealing strength; and the above three films cooperate witheach other, so the composite film has the advantages of high resistance to heat, puncture, pressure, medium and falling, standard-reaching microbial limit, good barrier to oxygen, moisture and carbondioxide, non-toxicity, and realization of heat sealing.
Owner:安徽屹珹新材料科技有限公司

Edoxaban tosylate preparation and preparation method thereof

The invention discloses an esdoxaban toluenesulfonate preparation and a preparation method thereof. The eldoxaban tosylate preparation is a solid dispersion prepared from the following raw materials in parts by weight: 10-40 parts of eldoxaban tosylate with the volume average particle size of 200-400 nm and 60-90 parts of a hydrophilic carrier material. The volume average particle size of the solid dispersion is 125-850 [mu] m, and the BET surface area is 0.5-2 m < 2 > / g. The volume average particle size of the active ingredients in the preparation product is below 400nm, so that the crystallinity of the medicine is reduced, and the surface area of the medicine is increased; the solid dispersoid is prepared with a hydrophilic carrier material, and the carrier material is combined with the medicine through a hydrogen bond, so that the dissolution speed reduction caused by the agglomeration of superfine medicine particles is avoided. According to the invention, the dissolution speed and dissolution rate of the product in a neutral solution are improved, so that the bioavailability of the medicine in vivo is improved.
Owner:NKD PHARMA CO LTD

Foundation premix with color changing from shallow to deep, foundation composition and preparation method thereof

ActiveCN107149563AWiden the difference in surface propertiesControllable color changing effectCosmetic preparationsMake-upColor changesInorganic pigments
The invention relates to a foundation premix with color changing from shallow to deep. The foundation premix comprises titanium dioxide and inorganic pigment, the surface of titanium dioxide is treated by using a first siloxane surface treating agent, the surface of the inorganic pigment is treated by using a second siloxane surface treating agent, the first siloxane surface treating agent is selected from, and the second siloxane surface treating agent is second siloxane of with carbon atom number greater than 1. The invention further relates to a preparation method of the foundation premix and the foundation composition comprising the foundation premix. The foundation composition has the advantages of controllable and quick color changing, high wettability, high covering ability, color diversity, safety, harmlessness, simple production process and high whiteness.
Owner:SHANGHAI CO FUN BIOTECH

Whitening and nourishing bath lotion

The invention relates to a whitening and nourishing bath lotion, which belongs to the technical field of daily chemical article. The whitening and nourishing bath lotion comprises the following components in parts by weight: 3-10 parts of apricot kernel oil, 1-3 parts of grape seed oil, 2-6 parts of aloe gel, 2-4 parts of hyaluronic acid, 0.5-5 parts of pearly slurry, 4-8 parts of a Sophora flavescens extract product, 1-7 parts of cow's milk, 1-5 parts of amino acid, and 50-70 parts of distilled water. The whitening and nourishing bath lotion has effects for cleaning and moistening skin, can promote skin healing, has functions of restoration and inflammation resisting, can keep skin elasticity, has certain sunscreen effect, and is the green natural no-pollution environment-friendly type bath solution having powerful antioxidation effect, mildness and no stimulation, and deep moistening.
Owner:张加芸

Preparation method of natural multi-effect lip mask

The invention discloses a preparation method of a natural multi-effect lip mask. The preparation method comprises the following steps: (1) mixing two oily substances, i.e., olive oil and grape seed oil to form an oil phase, mixing glycerinum and water to be used as a water phase, using pectin as emulsifier, heating to 70 to 80 DEG C, uniformly stirring, cutting at a high speed, homogenizing at high pressure, and obtaining uniform and stable oil-in-water emulsion; (2) spray drying chitosan and maltodextrin as a wall material, and preparing a vitamin E microcapsule; (3) mixing the emulsion obtained in step (1) with vitamin E microcapsule, glycolic acid, honey and chitosan, and uniformly stirring; (4) preparing a grinding agent; (5) sufficiently mixing and uniformly stirring a product obtained in step (3) and the grinding agent; (6) sterilizing; and (7) cooling and sub-packaging, thus obtaining a lip mask product. The lip mask prepared by the invention has good moistening performance, antioxidant performance, antibacterial performance and exfoliator effect.
Owner:ZHEJIANG UNIV OF TECH

Sealing cover film capable of being peeled after uncovering

The invention relates to a sealing cover film capable of being peeled after uncovering. The sealing cover film comprises a film body, the film body comprises a blocking layer, a heat seal layer and aneasy-to-peel coating arranged between the blocking layer and the heat seal layer, and the heat seal layer is provided with a cutting line and a through hole. The film has the advantages that throughthe easy-to-peel coating, connection between the blocking layer and the heat seal layer is achieved, and in the using process, when the blocking layer is uncovered, under the effect of the cutting line, the blocking layer and the heat seal layer are quickly layered; since the heat seal layer is always in contact with a cup body in the uncovering process, the phenomenon that in the existing uncovering process, contents are easily spilled or leaked laterally is effectively avoided; moreover, the overall structure is simple, the processing difficulty is low, the cost is low, since the blocking layer and the heat seal layer are easy to peel, great convenience is provided for recycling, the blocking layer and the heat seal layer can both serve as the raw materials for secondary utilization andbe conveniently disposed, and therefore, the environmental protection property is good.
Owner:GLODSTONE PACKAGING JIAXING

Foundation premix, foundation composition and preparation method thereof with color change from dark to light

ActiveCN107149562BWiden the difference in surface propertiesControllable color changing effectCosmetic preparationsMake-upPhotopigmentInorganic pigments
The invention relates to a foundation premix with color changing from shallow to deep. The foundation premix comprises titanium dioxide and inorganic pigment, the surface of titanium dioxide is treated by using (Cn'H2n'+1)aSi(OCmH2m+1)4-a (wherein n' is an integer and is greater than and equal to 1, m is 1 or 2, and a is an integer and is greater than or equal to 1 and less than or equal to 3), and the surface of the inorganic pigment is treated by using a compound treating agent comprising (CpH2p+1)bSi(OCqH2q+1)4-b (wherein p is an integer and is greater than and equal to 1, q is 1 or 2, and b is an integer and is greater than or equal to 1 and less than or equal to 3). The invention further relates to a preparation method of the foundation premix and the foundation composition comprising the foundation premix. The foundation composition has the advantages of controllable and quick color changing, high wettability, high covering ability, color diversity, safety, harmlessness, simple production process and high whiteness.
Owner:SHANGHAI CO FUN BIOTECH

Pole piece, preparation method thereof, and battery comprising pole piece

The invention relates to a pole piece, a preparation method thereof, and a battery comprising the pole piece. When the pole piece is prepared, mixed powder containing electrode powder, a binder and anadditive is baked; and the additive has hydrophilic and lipophilic functional groups. The specific additive is adopted to replace flammable and combustible alcohol, so that the problem that the polepiece is on fire in the high-temperature baking process is thoroughly solved, the safety of the pole piece baking process is effectively improved, continuous production is facilitated, and the production efficiency is improved.
Owner:EVE ENERGY CO LTD

Shea-butter-contained bath foam

The invention, which belongs to the technical field of daily chemical products, provides shea-butter-contained bath foam. The shea-butter-contained bath foam is prepared from the following components, by weight, 9 to 26 parts of surface active agent, 1 to 5 parts of wet storage agenet, 1 to 2 parts of pH regulator, 50 to 60 parts of pure water, 0.01 to 1 part of preservative, 0.01 to 3 parts of essence, 4 to 6 parts of hyaluronic acid, 3 to 6 parts of vitamin A, 0.5 to 5 parts of shea butter, and 0.05 to 0.5 part of citric acid. After the shea-butter-contained bath foam provided by the invention is used, the skin becomes refreshing without any greasy feeling and can be moisturized well; the preservation time is long. The shea-butter-contained bath foam is not only capable of cleaning and moisturizing the skin but also capable of accelerating skin healing, realizing good skin regeneration and anti-inflammatory effects, and maintaining skin elasticity. Meanwhile, the shea-butter-contained bath foam having a certain sun block effect has antioxidant, mild and non-irritating, deep moisturizing, green, natural, pollution-free, and environment-friendly effects.
Owner:张加芸

A Membrane Electrode with Improved Voltage Distribution Uniformity

ActiveCN103855407BGood moistureImprove flooding problemCell electrodesFuel cellsLow voltageEngineering
The invention designs a membrane electrode for improving voltage distribution uniformity. The membrane electrode comprises a diffusion layer with hydrophobicity gradually improved from an air inlet end to an air outlet end, and a catalyst layer with hydrophobicity gradually improved from the air inlet end to the air outlet end. The gradient distribution can be used for overcoming the defects of low voltage caused by insufficient moistening at the air inlet end of an oxygen electrode and voltage reduction caused by water logging of the air outlet end of a battery.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Flat dripping head

InactiveCN104338627APrecise and uniform flowGood moistureWatering devicesSpray nozzlesEngineeringFilter window
The invention provides a flat dripping head. The dripping head is of a flat long integrated structure, a water inlet and filtering window is formed in one end of a sticking surface of the dripping head, and a narrow and long tooth-shaped flow channel with a sudden turn is arranged in a position closely adjacent to the water inlet and filtering window in the length direction; the tooth-shaped flow channel is communicated with the water inlet of the water inlet and filtering window, and the water outlet of the tooth-shaped flow channel is communicated with a water outlet groove; long and thin grooves and short through grooves are formed in one side or two sides of the tooth-shaped flow channel, the long and thin grooves and the short through grooves are also formed in the end part of the water outlet groove of the flat dripping head, and groove ribs and a screening table are arranged on the back surface of the flat dripping head. The sticking surface of the flat dripping head is an arc surface, and the bottom surface of the water outlet groove is a surface with a circular top. According to the dripping head disclosed by the invention, the overall layout is uniform, the dripping head has the remarkable clogging, rolling, folding and stretching resistant capacities, the sticking effect is good, and the service life is long; through the adoption of the dripping head, the situation that liquid nutrients and fertilizer which are mixed with water dropwise, accurately and uniformly flow to crops can be ensured, so that the crops can obtain the optimal water and nutrients as required.
Owner:TIANJIN HUAXU SHENGTAI TECH

Novel Chinese medicinal hand wash capable of effectively sterilizing and nourishing

The invention discloses novel Chinese medicinal hand wash capable of effectively sterilizing and nourishing. The novel Chinese medicinal hand wash is prepared from the following components in parts byweight: 12 to 21 parts of Chinese angelica root, 5 to 11 parts of radix angelicae dahurioae, 14 to 19 parts of folium artemisiae argyi, 6 to 12 parts of flos chrysanthemi indici, 7 to 16 parts of folium isatidis, 8 to 19 parts of herb of alternanthera sessilis, 13 to 23 parts of radix rubiae, 8 to 17 parts of cortex lycii radicis, 11 to 19 parts of herb of lysimachia foenum-graecum, 14 to 19 parts of rhizoma atractylodis, 7 to 13 parts of herba violae, 5 to 18 parts of radix stemonae, 24 to 36 parts of aloe, 16 to 23 parts of fructus gleditsiae and 15 to 19 parts of rhizoma bletillae.
Owner:钟婷婷

Hollow capsule enteric coated sealing ring composition and preparation method and application thereof

InactiveCN111346069AAchieving acid resistanceEntericCapsule deliveryMacromolecular non-active ingredientsCelluloseMethyl cellulose
The invention relates to a hollow capsule enteric coated sealing ring composition and a preparation method and application thereof. The hollow capsule enteric coated sealing ring composition comprisesthe following components by mass of 10-23wt% of a gelling agent, 5-15wt% of a dispersing agent, 1-4wt% of a plastifier and the balance solvents, wherein the gelling agent is gelatin, hydroxypropyl methyl cellulose or combination of the gelatin and the hydroxypropyl methyl cellulose. For sealing ring capsules prepared by ring sealing with the sealing ring composition, each sealing ring and the corresponding capsule body are firmly adhered, and are indissolvable in the stomach, resolvable in the intestine, good in sealing property, excellent in mechanical properties, and good in properties of preventing collision, and separating oxygen and moisture.
Owner:BRIGHT FUTURE PHARMA LAB LTD (CN) +1

Novel lipstick and preparation method thereof

The invention discloses a novel lipstick and a preparation method thereof, and aims to solve the problems that an existing lipstick is poor in durability and moisture retention after being smeared, and the phenomena of lip dryness, peeling and the like are easily caused. The key point of the technical scheme is as follows: the hand cream is prepared from the following components in percentage by mass: 10 to 15 percent of water, 11 to 13 percent of ozocerite, 3 to 4 percent of beewax, 4 to 5 percent of polyethylene wax, 3 to 4 percent of octyldodecanol, 10 to 11 percent of ethylhexyl palmitate, 1 to 2 percent of candelilla wax, 10 to 15 percent of cetyl alcohol ethyl acetate, 15 to 20 percent of color paste, 10 to 15 percent of polyglycerol-2 diisostearate and 4 to 5 percent of polyglycerol-2-triisostearate. 0.5-1% of glycerin, and 0.2-0.6% of a preservative. The moisture content of the lipstick can be increased, the lipstick is good in moistening property, not greasy, good in water locking property and moisture retention property, has the moisture retention effect, is not prone to fading, and ensures the attractiveness of the lipstick.
Owner:浙江百姿化妆品股份有限公司

Sn-Bi-Ag series lead-free solder and preparation method thereof

The invention discloses Sn-Bi-Ag system lead-free solder for electronic assembly and a preparation method of the Sn-Bi-Ag system lead-free solder. The Sn-Bi-Ag system lead-free solder comprises, by mass, 3%-8% of Bi, 1.5%-2% of Ag, 0.3%-0.6% of Cu, 0.05%-1% of Ni, 0.8%-1.3% of Zn, 0.4%-0.7% of Cr, 0.03%-0.6% of Ti and Sn Bal, and the sum of the mass percentages of the components is 100%. The Sn-Bi-Ag lead-free solder alloy for electronic assembly prepared by the invention has the advantages of lower melting point, smaller wetting angle, excellent mechanical properties such as tensile strength and the like, and better electric conductivity, so that the Sn-Bi-Ag lead-free solder alloy has better spreading and wetting properties on a substrate, low cost and high production efficiency, can be used for automatic mass production, is nontoxic and pollution-free in the production process, and has smaller influence on the environment.
Owner:XIAN UNIV OF TECH
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