4478results about How to "Improve anti-aging" patented technology

The invention relates to the technical field of cosmetics, in particular to a natural plant extract composition and application thereof in the cosmetics. The natural plant extract composition is prepared from the following raw materials in parts by weight: 0.1 to 10 parts of plant stem cells, 2 to 10 parts of grapefruit extracts, 1 to 10 parts of radix asparagi extracting solution, 1 to 10 parts of gingko extracts, 5 to 10 parts of lucid ganoderma extracting solution, and 1 to 5 parts of burdock extracting solution. The natural plant extract composition provided by the invention not only has remarkable moisturizing and anti-aging effect, but also has the effects in removing acnes, adjusting grease secretion, resisting inflammation and relieving, and can be used for preparing moisturizing, anti-aging or acne-removing cosmetics.

A health-care food for the man to nourish liver and kidney, invigorate Yang, improve sexual function, relieve fatigue and delay sanility is prepared from 13 Chinese-medicinal materials including pipe film, sea horse, deer penis and dog penis, etc.

The invention discloses a temperature resistant salt tolerant high efficiency gel and a preparation method and application thereof. The preparation method is characterized in that the preparation method comprises the following steps: preparing a comb-shaped associated copolymer PAH containing macromonomers and functional hydrophobic monomers into an aqueous solution having the concentration of 0.1 to 4g / L, the crosslinking agent concentration of 0.01 to 1.0g / L, the surfactant concentration of 0.01 to 8mmol / L and the sodium sulfite thermal stabilizer concentration of 0.005 to 1.0g / L; adding the aqueous solution into a mixing container with a stirring device; stirring the aqueous solution evenly at the room temperature; regulating the pH value of the solution to be equal to between 4 and 11, and obtaining a temperature resistant salt tolerant high efficiency gel polymer solution system used for tertiary oil recovery and scavenge, displacement modification, profile modification or water shutoff. The polymer solution system has micro-crosslinking to form the gel during the flowage inside the oil reservoir. The gel has good elasticity, not easy dehydration, stable gelling performance, and excellent tackification, temperature resistance, salt tolerance, shearing resistance and ageing resistance.

The invention has supplied biological leaf fertilizer, whose characteristics is that it includes chemical agent, biological organic matter, chelating agent, penetrant and microbe fermentation liquor and the solid raw material and mess ratio are: urea50-55%, potassium dihydrogenphosphate20-25%, potassium chloride 7-8%, boric acid0.3-0.5%, boric acid0.2-0.4%, copper sulfate0.1-0.2%, calcium nitrate0.5-1.5%, magnesium sulfate0.2-0.4%, zinc sulfate0.2-0.4%, manganese sulphate0.2-0.3%, ammonium molybdate0.05-0.1%, fulvic acid14-15%, EDTA chelating agent1-2%, AEO-20 penetrant 0.05-0.1%, mix the raw material of the above mix water 160~70deg.C in the ratio of 2:3, after 24 hours, add microbe fermentation liquor into the liquid filtered by 0.5~1mL / kg, then adjust the PH value to 5.0~6.0, finally, obtain the invention. The leaf fertilizer contains lots of macroelements and all kinds of secondary and microelements, and also contains metabolic product of microbe fermentation, beneficial microbe flora,chelating agent, penetrant and growth regulating agent, without poison, smell and side effect, it is safe and reliable, can increase the quantity and quality of agricultural products.

The invention relates to an all-in-one water-borne inorganic-organic hybrid architectural coating and a preparation method thereof, wherein the all-in-one water-borne inorganic-organic hybrid architectural coating is prepared by taking a compounded product of a water-borne inorganic film-forming matter and an organic polymer emulsion as a base material through the steps of adding various pigments / fillers and auxiliaries into the base material, then carrying out beating, grinding and paint mixing on the obtained mixture. In the invention, through a Si-O-Si polymer net structure which can be formed by compounding alkali metal silicates and small-particle-size silica sols in the process of film forming, the early water resistance of a paint film is greatly increased, and the eventual hardness, scraping resistance and stain resistance of the paint film are greatly increased; and through adding the organic polymer emulsion, the film-forming performance of the coating can be improved, and the defects that the traditional two-component inorganic coating is easy to crack, bad in decorative properties, poor in storage stability, and the like are overcome. The coating prepared by using the method disclosed by the invention has various functions of environmental friendliness, non-toxicity, thermal insulation, ultra scrubbing resistance, abrasion resistance, yellowing resistance, ageing resistance, fouling resistance, good air permeability, sound insulation, and the like.

The invention relates to a paint technology, an environment-friendly technology and an antibacterial mould-proof technology, in particular to high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and a preparation method thereof. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint comprises the following components in percentage by weight: 0.5 to 5 percent of wetting dispersant, 0.01 to 20 percent of inorganic composite nano antibacterial agent concentrated pulp, 0.5 to 10 percent of hydrophobing agent, 0.5 to 10 percent of anionic powder, 0.5 to 8 percent of film-forming aid, 0.1 to 2 percent of anti-settling agent, 0.8 to 10 percent of antifreezing agent, 0.1 to 3 percent of defoaming agent, 4 to 30 percent of pigment, 0 to 30 percent of filler, 15 to 45 percent of emulsion, 0.1 to 4 percent of thickening agent, 0.1 to 3 percent of flatting agent, 0 to 3 percent of pH regulator and 0.5 to 45 percent of water. The high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint is mainly prepared by adding the inorganic composite nano antibacterial agent into the basic materials, so that the paint has the coating characteristic of high performance, is low is cost, and has a function of purifying air, can eliminate harmful gas volatile organic compounds (VOC), formaldehyde and the like and also has a durable and high-efficiency antibacterial mould-proof function, so that the sterilizing rate within 6 hours reaches 100 percent and the mould-proof grade reaches the first grade. By the high-efficiency environment-friendly antibacterial mould-proof inorganic composite nano paint and the preparation method thereof, self-cleaning performance, hydrophobicity, scrubbing resistance, dirt resistance and weather resistance of the coating are improved; and the high-efficiency and durable antibacterial and mould-proof effect is achieved.

The invention relates to high temperature-resistant polyacrylate pressure-sensitive adhesive emulsion and a preparation method and application thereof. The emulsion mainly consists of a hard monomer, a soft monomer, a functional monomer, reactive tackifying resin, a reactive emulsifier, an initiator and a curing agent. The preparation method comprises the following steps of: adding a monomer dissolved with the tackifying resin into the aqueous solution of the reactive emulsifier for pre-emulsification by adopting the pre-emulsification semi-continuous seeding polymerization process, performing polymerization on the pre-emulsified liquid through the initiator, and adding the curing agent to prepare the high temperature-resistant polyacrylate pressure-sensitive adhesive emulsion. The pressure-sensitive adhesive of the invention has heat resistance of 200 DEG C, has excellent water resistance, aging resistance and mechanical property, and can be widely applied to the fields of electronics, electrical appliances, automobile manufacturing and the like.

The invention discloses a water soluble copolymer with high viscosity and salt resistance, and a preparation method and an application thereof. The preparation method comprises the steps of: adding acrylamide 20 weight parts, an anionic monomer or / and a cationic monomer 0.1-15 weight parts,, a vinyl polycyclic aromatic hydrocarbon 0.05-4 weight parts,, a surfactant 0.5-90 weight parts,, and deionized water 70-900 weight parts, into a three-neck reaction bottle, adjusting the solution pH to 2.5-9, introducing N2 for 30min, adding an initiator persulfate 0.001-0.2 weight parts, at 20-70DEG C, and reacting for 6-36 hours to obtain a low-molecular weight water soluble copolymer with molecular association ability, high viscosity and salt resistance, which can be used in intermediate-permeability oil reservoir and low-permeability oil reservoir development. An associated water soluble polymer oil displacement agent is obtained by preparing the copolymer into an aqueous solution with copolymer concentration of 0.3-3 g / L and surfactant concentration of 0.01-4 mmol / L, adding into a mixer with a stirring device, and stirring uniformly at room temperature; and the obtained oil displacement agent has high viscosity, salt resistance, temperature resistance and shear resistance, and can be used in intermediate-permeability oil reservoir and the low-permeability oil reservoir development.

The present invention relates to the preparing technology of composite rubber material. Carbon nanotube via surface treatment and liquid rubber are ultrasonically mixed and added into partial hydrogenated nitrile-butadiene rubber to prepare mother rubber; the mother rubber is mixed with the rest hydrogenated nitrile-butadiene rubber, carbon black, zinc oxide and sulfurizing agent, and the mixture is mixed in a rolling mixer or a Banbury mixer and sulfurized to obtain the carbon nanotube modified hydrogenated nitrile-butadiene rubber. The present invention has the beneficial effects of raised heat performance, antiwear performance, mechanical strength, antiageing performance, etc. raised use performance and expanded application range.

The invention belongs to the technical field of road asphalt modification and relates to an ultraviolet aging-resistant compound modified asphalt, wherein on the basis of 100 parts by weight of matrix asphalt, in parts by weight, 1-6 parts of styrene-butadiene-styrene block copolymer, 3-18 parts of waste rubber powder, 5-10 parts of rock asphalt, 0.3-2.5 parts of sweller, 0.03-0.2 part of activator, 0.1-1 part of plasticizer and 0.2-0.5 part of stabilizer are further added, wherein the sweller is furfural extract oil which is subjected to dewaxing treatment previously; the furfural extract oil contains 60wt%-88wt% of aromatic components which contain 40-65wt% of heavy aromatic hydrocarbon; and the waste rubber powder is waste rubber tire tread rubber powder having the content of carbon black between 28wt% and 58wt% and the grain diameter between 45 and 80 meshes. The ultraviolet aging-resistant compound modified asphalt provided by the invention is up to the standard of the polymer modified asphalt in performance, and the ultraviolet aging resistance of the asphalt is improved to a large extent; and waste resources are utilized.

The invention relates to a microwave-irradiated waste-rubber powder modified pitch combination and its preparing method, using higher-wax content pitch as a substrate, adding in powdery butadiene-styrene rubber and microwave-irradiated waste rubber powder, and making high-speed cutting and uniform commixing to make the modified pitch. The modified pitch has the characters of high-temperature stability, obviously increased low-temperature extensibility, good antiaging property, etc, has road performance synthetically improved and can act as high-grade road pitch for use.

The present invention discloses a nano silicon dioxide emulsion, its preparation method and application. Said emulsion contains nano silicon dioxide, silane coupling agent, surfactant and water. The described nano silicon dioxide and the described silane coupling agent are combined into a hydrophobic particle, and the described hydrophobic particles are covered with surfactant, and dispersed in the water. Its preparation method includes the following steps: adding water-soluble alcohol into the colloid solution of silicon dioxide in the water, then adding silane coupling agent and adding surfactant and water; another preparation method includes the following steps: adding water-soluble alcohol or aqueous solution of described alcohol into nano silicon dioxide gel, then adding silane coupling agent, surfactant and water. Said emulsion can be directly added into the water-based paint, and can be used for modifying water-based paint and improving various properties of the water-based paint.

The invention relates to a medical used hot melt pressure-sensitive adhesive type base material and its preparing method which provides a hot melt pressure-sensitive adhesive and an adhesive used paste preparation. The main element of the hot melt pressure-sensitive adhesive is styrenic thermoplastic elastomer SIS (phenylethene -isoprene -phenylethene three block copolymers) with adhesive resin (such as petroleum resin, terpenes polymer, polyisobutylene), flexing oil (such as liquid petrolatum) and aging retarder (such as propyl gallate, BZ) and so on.

The invention relates to a prescription and a preparation method of rejoicing powder having a new dosage form and used for preventing or treating the senile dementia, and belongs to the biological medicine field. The rejoicing powder having a new dosage form is based on rejoicing powder having an ancient classic prescription and treats Radix Polygalae, Acorus gramineus and the like as primary medicines, the primary medicines are pretreated, partial or all medicines are extracted with water or an organic solvent in necessity to obtain effective components, the primary medicines or the effective components are mixed with proper medicinal auxiliary materials, and the rejoicing powder having the new dosage form is prepared through a certain preparation technology. The traditional prescription and the traditional technology for preparing the powder through simply crushing all medicines are changed in the invention, a new method and a new technology are applied against modern clinic medicine use characteristics to prepare the novel powder, and technological products have the characteristics of safety, effectiveness, controllable quality, convenient taking and the like of modern medicines, have the advantages of high biological utilization degrees of the effective components, fast effectiveness, substantial improvement of the product quality, and effective guarantee of the basic efficacies comprising qi benefiting, heart nourishing, nerve calming and tranquilizing, and have unique clinic application values in the prevention and the treatment of the senile dementia.

The invention discloses a leadless solder paste with high adhesion force for electron product surface pasting. The leadless solder paste contains a Sn-Ag-Cu-Bi-Ni base leadless solder powder blended with solder agent. The solder agent is made up of 35-50wt% of resin (such as modified abietic resin and waterless malic acid resin), 1-10wt% of thixotrope(such as modified hydro castor oil, fatty glyceride), 35-55%wt% of solvent (undercanol, dimethyl hexanediol), 1.5-5wt%of activator (succinic acid, tetrabutyl amine hydrobromic acid). The solder agent may also include 0.01-0.9wt% copper inhibitor made up of one or several of benzothiazole, benzotrinitrogenazole, and benzimidazole.

The invention discloses a polyvinyl chloride composition and a transparent pipe thereof. The polyvinyl chloride composition consists of the following components in part by weight: 100 parts of PVC resin, 1.0 to 5.0 parts of heat stabilizer, 0.2 to 2 parts of lubricating additive, 1 to 3 parts of processing modification aid, 2 to 5 parts of impact modifier, 0.01 to 0.08 part of decolorizing agent, 0.2 to 0.6 part of age resister and 0 to 10 parts of plasticizer. The polyvinyl chloride composition is subjected to high-speed hot mixing and low-speed cold mixing, and then is extruded to prepare the polyvinyl chloride transparent pipe; and the pipe is homogenous and transparent, has smooth inner wall, is not easy to scale, can be sleeved outside a pipeline for delivering important or dangerous chemicals, has monitoring and protecting functions, has good ageing resistance, and can be used for outdoor occasions. The preparation method for the polyvinyl chloride transparent pipe is simple, convenient and quick, does not require special tools and professional staff, and is favorable for large-scale industrial production.

The invention discloses a nano fog-dissipation multifunctional greenhouse agricultural film, and in particular relates to a three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film, belonging to the field of agricultural mulching films. The raw material formula of an outer layer comprises the following components in percentage by weight: 20-50% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE), 10-20% of metallocene polyethylene (mPE) and 5-10% of double-prevention masterbatch; the raw material formula of a middle layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 20-40% of linear low-density polyethylene (LLDPE), 20-40% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; the raw material formula of an inner layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 10-20% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; and the formulas of the outer layer, the middle layer and the inner layer are uniformly mixed respectively, master batches are prepared by using a double-head thread screw double-screw extruding machine, a three-layer film is formed through a co-extrusion die head and is extruded out to prepare the multifunctional agricultural greenhouse film. Every quality technical index of the film reaches or exceeds a national standard, and a small part of the indexes is more than 2 times better than the national standard, so that the film is excellent in antiaging performance and cannot generate fog drops, and the service life of the film reaches more than 3 years.

The invention discloses a passive radiation refrigeration composite material layer which coats a substrate to form a composite layer structure of the substrate and a passive radiation refrigeration layer, and the passive radiation refrigeration layer reflects visible light and near-infrared light in sunlight and dissipates heat through an atmospheric window in an infrared radiation form. The invention discloses a preparation method of the passive radiation refrigeration composite material layer, and the method comprises the following steps: dissolving resin in a volatile solvent, dispersing nanoparticles in the volatile solvent, and mixing at normal temperature to form a suspension; dissolving a functional polymer in the suspension, and uniformly mixing to form a coating solution; and coating the substrate with the coating solution to volatilize the solvent so as to form the passive radiation refrigeration layer on the surface of the substrate. The material disclosed by the invention has a simple single-layer structure, can simply coat the surfaces of various substrates like a coating, can reduce the incompatibility among multi-layer structures and reduce the cost, and is simple and convenient in preparation method, easy to operate and low in cost.

The invention relates to a hot-melting pressure sensitive adhesive and a preparation method thereof. The hot-melting pressure sensitive adhesive effectively solves the problems that the compatibility of a pressure sensitive adhesive and medicines is poor, the pressure sensitive adhesive is easy to oxidize, poor in weather resistance, stability and ventilation and can stimulate the skin. The hot-melting pressure sensitive adhesive is prepared from the following raw materials by weight percent: 20%-45% of thermoplastic elastomer SIS (Styrene Isoprene Styrene), 20%-40% of tackifying resin, 15%-35% of softener, 1%-8% of antioxidant and 3%-15% of filler. The preparation method comprises the following steps of: heating, mixing and stirring the thermoplastic elastomer SIS, the softener and 0.25%-2% of antioxidant to the melting state; then adding the tackifying resin and 0.25%-2% of antioxidant, heating, mixing and stirring to the melting state; and adding the filler and 0.5%-4% of antioxidant, and heating, mixing and stirring to the melting state. The hot-melting pressure sensitive adhesive is transparent and environment-friendly, can not cause skin allergy, has good aging resistance and good aerobic degradation effect, and is also applied to emplastrum.

The high transparency polyester film contains nano level silica of grain size 20-50 nm and micron level silica of grain size 1.2-2.0 microns. The nano level silica accounts for 50-2000 ppm of total polyester film weight, and the micron level silica 1-300 ppm. The production process of the high transparency polyester film includes the first preparation of silica suspension, the subsequent conventional polymer producing course to produce polyester slice, and final conventional melting extrusion of the slice and bi-directional stretching. The product of the present invention has high transparency, waterproof property, blocking property, heat resistance and antiaging property.

The invention discloses a multi-component high-performance sizing agent. The sizing agent is prepared from various raw materials by a mixing reaction, wherein the raw materials comprise corn starch, phosphate, tween, persulfate, and at least one of phosphorus oxychloride and epoxy chloropropane. The sizing agent has the characteristics that the adhesion force is high, the film-forming ability is high, a serous film is coriaceous, the elasticity is high, the bending resistance (fatigue resistance) is improved by 3 to 4 times compared with a common modified starch sizing agent, and the abrasion resistance and the ageing resistance are high. The serous liquid is not frozen, caked or layered at normal temperature, and has high liquidity and stable viscosity. The sizing agent has no polyvinyl alcohol; when the sizing agent is sized on spinning cotton yarns; for the variety with general tightness, the polyvinyl alcohol does not need to be used for less than 50 yarns; or no or less polyvinyl alcohol is used for sizing on polyester cotton or over 50 cotton yarns; the yarns are easy to desize; the serous liquid waste water is easy to treat; the environment pollution is low; and the production process has zero pollution emissions.

The invention discloses cation high-performance size which is made from the following raw materials: corn starch, hydroxides, trimethylamine hydrochloride and persulfate through a hybrid reaction, wherein corn starch accounts for 80%-95% by weight, calcium hydroxide and / or magnesium hydroxide account(s) for 1%-10% by weight, trimethylamine hydrochloride accounts for 1%-15% by weight, and persulfate accounts for 0.1%-15% by weight. The cation high-performance size has the advantages of strong adhesive ability, good film forming property, tough size film, and excellent elasticity; the flexibility (fatigue endurance) is improved by 3-4 times in comparison with common modified starch size; the cation high-performance size is excellent in wear-resisting and anti-aging properties; and the size has good flowability under the condition of normal temperature, and is stable in viscosity. Polyvinyl alcohol is not used. When pure cotton yarns are sized during spinning, 60-count yarns of common tightness do not need polyvinyl alcohol, and when polyester or pure cotton yarns higher than 60-count are sized, no polyvinyl alcohol is needed or only a small amount of polyvinyl alcohol is needed, so that desizing is easy, the size waste is easy to process and causes small pollution to the environment; and zero pollution emission is realized in a production process.

The present invention provides an enzymolysis lignin or enzymolysis derivant modified asphalt composite material and a preparation method. The raw materials include the enzymolysis lignin or the enzymolysis lignin derivant, the asphalt and other modification assistant agents. The preparation steps: the enzymolysis lignin or the enzymolysis lignin derivant, other modification assistant agents and filling agent are mixed in advance to the melted asphalt substrate to be uniformly mixed, and then the mixture is displaced for solidification. The present invention makes full use of the renewable living resource, and not only resolves the problem of the present polymer modified asphalt that depends on the synthesis of the petrochemical raw materials, but also can reduced the use cost of the polymer modified asphalt; appropriate enzymolysis additive can be selected according to different requirements of the modified asphalt product to substitute partial petrochemical raw materials, thus improving the anti-aging performance of the polymer asphalt product; moreover, the craftwork is simple and is easy to implement, thereby can reduce the production cost and improve the competition strength of the product.

The invention provides a microbial sand-fixing dust depressor and a preparation method thereof. The microbial sand-fixing dust depressor comprises the following components in percentage by mass: 0.8-2.5% of microbial powder, 3.0-5.0% of urea, 8.1-10.1% of calcium chloride and the balance of deionized water, wherein the microorganism in the microbial sand-fixing dust depressor is bacillus pasteurii powder. The preparation method comprises the following steps: proportionally mixing the calcium chloride with the deionized water, stirring till the calcium chloride is completed dissolved, adding the urea, and after the urea is dissolved, adding the bacillus pasteurii powder till the bacillus pasteurii powder is completely dissolved, thereby obtaining a mixed solution, namely the microbial sand-fixing dust depressor. Compared with the traditional inorganic sand-fixing agent, the microbial sand-fixing dust depressor is high in permeability; compared with the traditional organic sand-fixing agent, the microbial sand-fixing dust depressor has the characteristics of high ageing resistance, simplicity in preparation, convenience in construction and the like. Proved by desert sample tests, the sand-fixing dust depressor is high in ageing resistance and wind erosion resistance and has unconfined compressive strength higher than 1MPa. Proved by raise dust sample tests, the sand-fixing dust depressor has a good dust fixing effect.

The said polyurethane is prepared through preparing polymer with diisocyanate, hydroxyl-containing oligomer, chain expander with active hydrogen radical and chain expander with carboxylic radical, neutralizer with alkali radical, blocking agent, cross-linking agent and optional catalyst in certain proportion; and subsequent reaction in water to obtain polymer. The polyurethane features the blocking diisocyanate radical and hydroxyl radical and thus shape converting temperature of -30 deg.c to 100 deg.c. In temperature higher than the shape converting temperature, the polyurethane may have its shape converted; in temperature lower than the shape converting temperature, the polyurethane is unchanged in shape; and the polyurethane heated to the temperature higher than the shape converting temperature will restore original shape.

The invention relates to a disinfector, and particularly relates to a traditional Chinese medicinal bactericidal freshening preparation for sterilizing a library. The traditional Chinese medicinal extracts of the traditional Chinese medicinal bactericidal freshening preparation are extracted from the following raw materials: astragalus membranaceus, coptis chinensis, cortex phellodendri, honeysuckle, agastache rugosus, folium eucalypti, mother chrysanthemum, liquorice, cordate houttuynia, folium artemisiae argyi, radix angelicae, angelica sinensis, gentiana lutea, rhizoma atractylodis, Eupatorium fortunei, cyrtomium fortune, fructus cnidii, rheum officinale, pepper, schizonepeta, mint and polygala tenuifolia. The traditional Chinese medicinal bactericidal freshening preparation also plays a role of freshening air when sterilizing and disinfecting. The effective components of the traditional Chinese medicinal bactericidal freshening preparation are the traditional Chinese medicinal extracts, so that the traditional Chinese medicinal bactericidal freshening preparation is free of toxic and side effects on a human body, also has the effects of clearing away heat and toxic materials, improving immune capability and the like, and is especially suitable for use in the library with large population flow and long detention time.

The invention relates to an ultraviolet curing liquid optical clear adhesive and a preparation method thereof, and belongs to the field of bonding adhesives. The method comprises the steps that toluene diisocyanate, polyethylene glycol and hydroxyethyl acrylate are taken as raw materials; a urethane acrylate prepolymer is synthesized through polystep reaction by a bulk method; the prepolymer is taken as a main body; a photoinitiator, a composite reactive diluent and other assistants are added; and then the ultraviolet curing liquid optical clear adhesive is prepared. The ultraviolet curing liquid optical clear adhesive prepared by the preparation method has the characteristics that the ultraviolet curing liquid optical clear adhesive is low in smell, moderate in viscosity, good in flexibility, high in light transmittance and refractive index, high in bonding strength, waterproof, and good in cold and heat shock resistance, weather resistance and ageing resistance. The ultraviolet curing liquid optical clear adhesive is completely transparent after being cured, and can keep stable high transparency and is free from yellowing, whitening and degumming for a long term in high-temperature and high-humidity environments.

The invention provides a metal surface anti-corrosion layer structure and a coating method thereof. The anti-corrosion layer structure comprises a priming paint layer of 40-80 mu m, an intermediate paint layer of 50-100 mu m and a surface paint layer of 40-80 mu m, wherein, the priming paint layer is formed by coating object system paint on epoxy-polyamide, the intermediate paint layer is formed by coating object system paint on heavy-sizing epoxy-polyamide, and the surface paint layer formed by coating acrylic acid polyurethane system paint. The coating method comprises coating the priming paint layer on the metal surface; coating the intermediate paint layer on the priming paint layer; and coating the surface paint layer on the intermediate paint layer. The metal surface anti-corrosion layer structure in the embodiment of the invention has good anti-corrosion performance, ageing resistance and mechanical performance, simple technique, low cost which is lower than that of commonly used powdery paints at present, and no heavy metals, which is environment-friendly.

The invention is a foam Mg preparing method, including smelting Mg alloy, making vacuum seepage device, selecting filling particles, preheating prefabricated model, casting and seeping, processing and molding, and eliminating filling particles, where the particle size of fillings is 16-120 eye, the preheating temperature of casting mould and prefabricated model 200deg.C- 550deg.C, and the casting temperature 700deg.C-730deg.C. It can use good sound absorbing property of foam metallic materials to solve the exhausting and silencing problems of motorcycle engines, and can act as sandwich material of airplane's structural components.

The invention provides low-temperature curing temperature-resistant heavy-duty anticorrosive paint, which comprises a component A and a component B, wherein the component A takes epoxy modified silicone resin as main raw material combined with other pigment fillers and additives; the component B is modified polyamide; and the component A and the component B in use are mixed in a certain ratio. The low-temperature curing temperature-resistant heavy-duty anticorrosive paint is characterized in: 1, two components cured to be film at low temperature, no need for high-temperature baking, simple convenient construction, cost saving and capability of resisting a high temperature of 200 DEG C for a long period of time; 2, excellent physical and mechanical properties, adhesion, good flexibility and high anti-impact strength; and 3, excellent chemical stability, boiling resistance, oil resistance and anti-aging performance.