110results about How to "Good synergistic performance" patented technology

The premixed feed consists of premixed mannosan preparation 0.5-2.5 wt%, premixed microbial preparation 0.5-3 wt%, bioactive peptide 1-3 wt%, fermented animal protein 30-50 wt% and organic carrier the rest. The present invention can promote growth and life activity of farm animal, replace antibiotic in raising the disease resistance of farm animal, control the growth of mildew, saccharomycetes and other hetero bacteria in feed and raise the quality of farm animal products.

The invention provides food for a pet dog. The food is characterized in that the food mainly comprises the following raw materials by weight: 30 to 70 portions of edible meat or animal skin and 30 to 70 portions of puffed rice flour. The food which has cheap and easily obtained raw materials and high nutritive value can serve as the snack food for the pet dog for a long period. The invention also provides a preparation method for the food for the pet dog.

The invention relates to a high-intensity high-toughness PLA (polylactic acid) modified material for 3D (three-dimensional) printing and a preparation method thereof in the technical field of a 3D printing material. The high-intensity high-toughness PLA modified material for 3D printing is characterized by being prepared from the following ingredients in parts by mass: 100 parts of PLA, 10 to 30 parts of inorganic filling materials, 5 to 10 parts of toughening agents, 6 to 10 parts of anti-impact modifying agents and 4 to 10 parts of other auxiliary agents. The modified and prepared PLA modified material achieves an environment-friendly effect and is nontoxic; the printing is smooth; no odor exists; no pollution exists; the safety coefficient is high; a printing finished product has the excellent characteristics of bright and clean surface, beautiful appearance, uniformity, stable dimension, shrinkage difficulty and the like; the PLA modified material is suitable for being used by an FDM 3D printer; waste materials can be completely recovered and recycled; the cost is reduced; the resource utilization rate is also improved. The product manufacturing technological process is short;the equipment requirements are simple; the manufacturing process is simple and convenient; the operation is convenient; the severe chemical process operation is omitted; the preparation method is verysuitable for large-scale industrial production.

The invention discloses a sludge utilization method and application, and relates to the technical field of comprehensive utilization of natural water sludge. The sludge utilization method comprises the following steps: performing harmless treatment on sludge which meets the pollutant index requirements in GB / T 23486-2009 'Sludge Characters for Landscaping in Municipal Sewage Treatment Plant SludgeDisposal' and then using the sludge as greening soil, wherein the harmless treatment comprises plowing and curing the sludge stacked on green belt soil and added with a sludge fermentation microbialinoculum, and using the cured soil for planting landscaping plants. By using the method provided by the invention, the defects of complicated land use treatment process, single mode, and unremarkableenvironmental, economic and social benefits of the existing sludge are relieved; and according to the method provided by the invention, the sludge meeting indexes is used as soil for green belts, effective components in the sludge can be fully utilized, shore soil can be improved, the usage amount of chemical fertilizers and humus soil in garden planting can be reduced, the planting environment can be protected, non-point source pollution can be reduced, and sludge resource utilization can be realized.

The invention relates to a waterborne dispersion resin containing hydroxyl and a preparation method thereof. The resin is characterized in that the resin is obtained by free radical polymerization of various vinyl monomers in water under the action of initiators to form a copolymer and then neutralizing the copolymer to form salt; hydroxyl accounts for 3.0-4.0% of the total mass of the resin; the mass percent of the medium water is 70-74%; the mass percent of neutralizers is 3.0-4.0%; the total mass percent of various vinyl monomers is 24-26%; the initiators account for 2.2-2.6% of the total mass of various vinyl monomers; and various vinyl monomers are formed by 60-80% of vinyl monomers without functional groups, 15-35% of vinyl monomers containing the hydroxyl functional group and 8-15% of vinyl monomers containing the carboxyl functional group. The resin is especially suitable to be used in the waterborne cross-linkable coating systems with waterborne hydroxyl dispersions or hydroxyl emulsion as the main film forming matters to disperse pigments and fillers and can obviously improve such performances of the films as gloss, water resistance and chemical media resistance.

The invention provides a mildew-proof and bactericidal environmental friendly coating. The coating comprises the following components in parts by weight: 25-32 parts of polyvinyl alcohol, 15-18 partsof a polyacrylate emulsifier solution, 8-10 parts of nano attapulgite, 11-13 parts of nano kaolinite, 8-10 parts of pyrophyllite, 12-15 parts of shell powder, 1.2-1.5 parts of zinc oxide, 0.8-1 part of polyacrylamide, 6-8 parts of epoxy resin, 0.7-1.0 part of a mineral oil defoaming agent, 0.5-0.8 part of nano titanium oxide, 10-12 parts of gas cleaning bactericidal powder, 3-5 parts of sepiolitepowder, 0.2-0.3 part of a polyacrylate ammonium salt dispersing agent, 0.1-0.2 part of carboxymethylcellulose, 3-5 part of coconut oil and 50-60 parts of deionized water. The gas cleaning bactericidalpowder is formed by pulverizing dry wormwood, cape jasmine, lemon-scented gum leaves, Eucalyptus Gunnii leaves and lemon-grass according to the mass ratio of 3: 1: 1: 2: 1, and then mixing the foregoing components.

The invention relates to a fruit and vegetable preservative containing chitosan. The preservative comprises the following components in percentage by weight: 30 to 70 percent of chitosan solution, 20 to 50 percent of sodium chloride electrolyte, 1 to 10 percent of carvacrol solution and 1 to 10 percent of thymol solution, wherein the concentration of the chitosan solution is 100 to 2,000ppm, the effective chlorine ion concentration of the sodium chloride electrolyte is 30 to 50ppm, and the concentrations of the carvacrol solution and the thymol solution are respectively 400 to 3,200ppm. The components of the fruit and vegetable preservative are used together, so that the range and the capacity of sterilization and bacterial inhibition are improved; the preservative has the advantages of simplicity and convenience in preparation, nature, no toxicity and high safety; and the treated fruits and vegetables have bright color and good flavor.

The invention provides a special anti-radiation high and low temperature lubricating grease for a nuclear grade pump. Raw materials of the lubricating grease comprise the following components in percentages by weight: 85% to 92% of alkyl diphenyl ether, 3% to 10% of polyurea powder, 3% to 8% of PTFE micro powder, 1% to 6% of silicon dioxide and 1% to 5% of zinc oxide; and the gross of the components of the raw materials is 100%. Through the adoption of the appropriate components with reasonable using amounts, the components of the raw materials can preferably play a mutual coordination effectin prepared vacuum pump oil, then through a specific preparation technology, the mutual coordination effect of the components of the raw materials is realized, and finally the special anti-radiation high and low temperature lubricating grease for the nuclear grade pump which is high in high and low temperature resistance and stability, long in service life and excellent in oxidation resistance, aging resistance and radiation resistance is prepared; and moreover, the lubricating grease has preferable extreme pressure abrasive resistance. Through the raw materials and components adopted in the lubricating grease, besides the excellent performance, the components also have an extremely high mutual coordination effect and an excellent synergistic effect.

The invention relates to a cerium-tin-zirconium composite oxide catalyst, a preparation method and an application thereof. The catalyst has the following chemical composition: CeSn a Zr 2 o x , a ranges from 0 to 2.0 and does not include 0. The addition of Sn promotes the synergy between Sn, Ce, and Zr, changes the adsorption performance of the catalyst to the reactants, and makes the redox process of the catalyst easier to complete, thereby increasing the NO x removal efficiency. The CeSn a Zr 2 o x The catalyst activity is significantly improved, and the temperature window is also significantly widened. The cerium-tin-zirconium composite oxide catalyst has excellent NH 3 - SCR activity.

The invention discloses an antibacterial plastic filler and a preparation method thereof. The preparation method includes: subjecting herbaceous plants, chitosan, chitosan fiber and kieselguhr to primary mixing and primary thermal treatment to obtain a mixture M1; adding calcium stearate, sodium alginate, hydrotalcite, ferric stearate and silicon oxide to the mixture M1 for secondary mixing and secondary thermal treatment prior to drying, grinding and sieving to obtain the antibacterial plastic filler, wherein the temperature of the secondary thermal treatment is higher than that of the primary thermal treatment at 30-50DEG C. Plastic products can have excellent antibacterial property when the antibacterial plastic filler serves as an additive component of the plastic products of plastic films and the like, bacteria breeding can be effectively inhibited, and preservation effect of food is improved.

The invention discloses a high-strength mildew-proof wall hanging plate and a method for processing the same. The method includes 1), mixing polyvinyl chloride resin, polypropylene resin, polycarbonate, dibutyl phthalate, ethyl acetate and silane coupling agents with one another and then carrying out first heat treatment to obtain mixtures M1; 2), adding reinforcing fillers into the mixtures M1 and carrying out second heat treatment to obtain mixtures M2; 3), carrying out compression molding on the mixtures M2 and processing the mixtures M2 to obtain the high-strength mildew-proof wall hanging plate. The mark of the silane coupling agents is KH550. The high-strength mildew-proof wall hanging plate and the method have the advantages that the high-strength mildew-proof wall hanging plate is high in strength, good in bending property and excellent in tensile property and mildew-proof performance and is durable, and the like.

The invention discloses an antibacterial plastic and a preparation method thereof. The preparation method includes the steps: mixing polyvinyl acetate, polyurethane resin, antibacterial plastic fillers, turpentine oil, vinyl trimethoxy silane, tricresyl phosphate and silane coupling agents with the mark of KH570 to prepare colloidal particles; adding the colloidal particles into an extruder for extrusion molding to prepare the antibacterial plastic. The antibacterial plastic fillers are prepared from herbaceous plants, chitosan, chitin fibers, diatomite, calcium stearate, sodium alga acid, hydrotalcite, ferric stearate and silicon oxide, the extruder comprises a feeding section, a middle section and an extrusion head, the working temperature of the feeding section of the extruder ranges from 105 DEG C to 110 DEG C, the working temperature of the middle section ranges from 115 DEG C to 120 DEG C, and the working temperature of the extrusion head ranges from 180 DEG C to 195 DEG C. The antibacterial plastic is high in mechanical strength, bacteria breeding can be effectively inhibited, and preservation effects on food and the like are improved.

The invention discloses an anti-blue ray / color-changing bifunctional optical resin material and a preparation method thereof. The bifunctional optical resin material is composed of an anti-blue ray optical resin material and a photochromic coating coated on the material surface. The anti-blue ray optical resin material is prepared by dispersing polyurethane / light absorber / titanium oxide nanocomposite microspheres in a polyurethane optical resin. The nanocomposite microspheres are of a three-layer composite core-shell structure, the core refers to titanium oxide nano microspheres, the middle layer refers to a light absorber, and the shell is polyurethane. The spectrum blocking range of the anti-blue ray optical resin material is expanded from an ultraviolet spectrum region to a blue-ray spectrum region, and the anti-blue ray optical resin material has distinguished absorption performance on blue rays of different bands on the premise of ensuring high transmittance. The anti-blue ray optical resin material and the photochromic coating are subjected to matching and function integration, the transmittance can be automatically regulated according to light intensity, darkness control isrealized by selectively transmitting beneficial light and cutting off harmful light, and light transmission is performed according to needs.

The invention discloses a wheel set and gear case cleaning agent for high-speed rails and a use method thereof. The cleaning agent comprises triethanolamine, dodecadicarboxylic acid, alcohol alkoxylate, a complexing agent and a soil dispersing agent, wherein the complexing agent is selected from one or two of disodium ethylenediamine tetraacetate and nitrilotriacetic acid; the soil dispersing agent is selected from one or two of sodium acrylate homopolymer and polyacrylic acid. When being used for high-speed rail repair, the cleaning agent disclosed by the invention is high in cleanliness after cleaning and simple in cleaning operation, is beneficial to flaw detection of wheel sets and is capable of meeting rust prevention requirement in the short term from the flaw detection to the assembly; in addition, the cleaning agent can be diluted to more than 10 times for use and is low in cost, friendly to environment and free of toxicity to human.

The invention discloses a facial mask for removing wrinkles, freckles, acnes and smoothing skin and a preparation method of the facial mask. The facial mask is characterized by comprising the following components by weight: the weight ratio of glycerol, ginkgo, almond, coix seed, white paeony root, Chinese yam and polished round-grained rice is 500: (20-30): (30-50): (40-60): (20-40): (20-40): (40-60). The facial mask for removing wrinkles, freckles, acnes and smoothing skin and the preparation method of the facial mask have the characteristics of scientific raw materials, easily-obtained materials, good mutual synergistic effect, simple preparation process, stable effect and wide range of applicable people, can be suitable for people with dull-looking skin, freckles, wrinkles, acnes and coarse pores needing to be improved, and have the functions of removing wrinkles, freckles, acnes and whitening and smooth skin.

The invention discloses a composition for treating chloasma and a preparation method thereof, and belongs to the technical field of chloasma treatment preparations. The preparation method comprises the following steps of: (1) preparing extract paste; (2) performing steam flash explosion; (3) performing micro-jet high-pressure homogenization treatment; and (4) performing ultrasonic-ultraviolet-magnetic field coupling treatment. According to the composition for treating chloasma and the preparation method thereof, firstly, the selected raw materials are traditional Chinese medicines, vegetables and fruits with mild temperament, and the raw materials are safe; secondly, by combining and applying the technologies of cryogenic grinding, cold plasma treatment, steam flash explosion, micro-jet high-pressure homogenization treatment, ultrasonic waves and the like, the fusion among the raw materials is promoted, the bioavailability of the raw materials is improved, the interaction among the raw materials is promoted, the finished product is refined while sterilization is performed, and the composition is easy to absorb, so that the raw materials can synergistically act on the skin, and the composition has a remarkable treatment effect on chloasma.

The invention provides oil-in-water drilling fluid taking biodiesel as a dispersion phase as well as a preparation method and application thereof. The oil-in-water drilling fluid comprises 40-70 parts by volume of water and 30-60 parts by volume of biodiesel, wherein the total volume of water and biodiesel is 100%; the oil-in-water drilling fluid further comprises the following components: bentonite with the mass-to-volume ratio (g / mL) of 1%-6%, sodium carbonate with the mass-to-volume ratio of 0.05%-0.3%, sodium hydroxide with the mass-to-volume ratio of 0.02%-0.05%, a main emulsifier with the mass-to-volume ratio of 2%-5%, an auxiliary emulsifier with the mass-to-volume ratio of 0.2%-1%, a shale inhibitor with the mass-to-volume ratio of 0.5%-5% and a filtrate reducer with the mass-to-volume ratio of 0.5%-5%. The oil-in-water drilling fluid provided by the invention has the characteristics of being low in cost, non-toxic, non-fluorescent, low in density, adjustable, good in rheological property, low in filter loss, excellent in lubricating property and high in upper temperature resistance limit, and further has advantages of being excellent in antifouling property, shale inhibition property, reservoir protection property and environment acceptability.

The invention provides a landfill leachate composite water treatment agent which comprises the following raw material component in parts by weight: 42-50 parts of polyacrylamide, 34-40 parts of polyaluminium sulfate, 34-40 parts of sodium polyacrylate, 25-30 parts of chitosan, 23-26 parts of potassium ferrate, 25-30 parts of expanded graphite, 25-30 parts of pyrophyllite, 25-30 parts of medical stone, 25-30 parts of coal ash, 33-36 parts of modified palm barks, 33-36 parts of active cocoanut charcoal and 18-22 parts of horseradish tree bark powder. The landfill leachate composite water treatment agent provided by the invention has multiple functions of flocculation, oxidation, adsorption, sterilization and the like, not only are harmful organic substances and heavy metal ions in living landfill leachate efficiently removed, but also microorganisms such as bacteria in the leachate can be effectively killed, and burden and influence upon later treatment processes can be alleviated.

The invention provides a clean vacuum pump oil. The clean vacuum pump oil comprises the following raw materials by weight: 15 to 30% of oil-soluble polyether, 60 to 76% of trimellitate, 5 to 15% of alkyldiphenyl ether, 1 to 2% of an emulsion inhibitor, 1 to 2% of an air compressor oil complexing agent, 1 to 2% of an anti-oxidant and 0.02% of an antifoaming agent, summing to 100%. Through adoptionof proper composition and reasonable usage amounts, the raw materials for preparation of the clean vacuum pump oil better perform synergism; a specific process is used so as to promote synergism of the raw materials; and the prepared clean vacuum pump oil has excellent heat stability and oxidation stability, can ensure a vacuum pump to reach a high vacuum degree and improves the service life of the vacuum pump.

The invention provides a multifunctional water treatment agent for landfill leachate. The multifunctional water treatment agent for the landfill leachate comprises the following raw material components in parts by weight: 43-46 parts of polyacrylamide, 18-22 parts of pyrophyllite, 18-22 parts of medical stone, 18-22 parts of expanded graphite, 33-36 parts of modified palm bark, 25-30 parts of modified luffa fibers, 22-26 parts of cocoanut active charcoal, 10-12 parts of moringa oleifera bark powder, 13-16 parts of tourmaline powder and 8-11 parts of potassium ferrate. The multifunctional watertreatment agent for the landfill leachate has multiple functions of flocculation, oxidation, adsorption, sterilizing and the like, harmful organic matters and heavy metal ions in domestic garbage leachate can be removed effectively, furthermore, microorganisms such as bacteria in the leachate can be killed effectively, and thus, load and influences to a follow-up treatment process are relieved.

The invention discloses a fruit and vegetable preservative film and a preparation method thereof. The preparation method comprises the following steps: mixing low-density polyethylene resin, polyvinylacetate, bacteriostatic stuffing, ethyl acetate, vinyl trimethoxy silane, tricresyl phosphate and a silane coupling agent with a trademark of KH550 to prepare colloidal particles; adding the colloidal particles into an extruder to extrude and form to prepare the fruit and vegetable preservative film; the bacteriostatic stuffing is prepared from herbaceous plant, chitosan, alginate fibers, attapulgite, calcium stearate, sodium alginate, montmorillonoid, iron stearate and silicon oxide; the extruder comprises a charging section, a middle section and an extruder head which are sequentially connected; and a working temperature of the extruder is as follows: 90-100 DEG C for the feeding section, 110-115 DEG C for the middle section and 165-175 DEG C for the extruder head. The fruit and vegetable preservative film is high in mechanical strength, and can effectively restrain bacteria breeding to improve the preservation effect of fruits and vegetables.

The invention discloses environment-friendly emulsion paint and belongs to the field of environment-friendly decorative materials. The emulsion paint comprises raw materials in parts by weight as follows: 200-300 parts of acrylic emulsion, 2-6 parts of a thickener, 6-12 parts of a dispersing agent, 2-10 parts of a coalescing agent, 2-8 parts of nano-silica and 2-8 parts of vinyltrimethoxysilane. The environment-friendly emulsion paint has the following beneficial effects: nano-silica can coalesce into a net structure, and strength and washability of a coating are improved; pores and bubbles exist in a film, the pores can be filled with nano-silica, density of the coating is improved, dirt is not prone to adhesion, and contrast ratio and stain resistance of the paint are improved. Vinyltrimethoxysilane can be subjected to a reaction with hydroxy on the nano-silica surface, so that nano-silica subjected to surface treatment can be tightly bound with a polymer in the acrylic emulsion through grafting, copolymerization and other reactions, stable core-shell composite emulsion is formed, and stain resistance of the emulsion paint is further improved.

The invention discloses a corrosion-resistant and wear-resistant high strength electrophoretic aluminum profile and a preparation process thereof and belongs to the field of aluminum profile preparation. The corrosion-resistant and wear-resistant high strength electrophoretic aluminum profile is prepared from the following raw materials in percent by weight: 0.8-1.2% of Mg, 0.4-0.6% of Si, 0.2-0.4% of Ti, 0.22-0.3% of Fe, 0.06-0.1% of Cu, 0.08-0.12% of Zn, 0.06-0.08% of Cr, 0.12-0.18% of Mo and the balance of Al and inevitable impurities. The preparation process is simple and effective and convenient and rapid in process operation. By controlling the contents of Mg, Si, Fe, Cu and Zn reasonably, strengthening phases such as Al2Cu, Al2CuMg, Mg2Si, MgZn2 and the like are formed in the electrophoretic aluminum profile to strengthen the synergistic effect, refine crystals and improve grain distribution, so that performance, such as wear resistance and corrosion resistance, of the electrophoretic aluminum profile is improved. By matching Si, Ti, Fe, Cr and Mo, the grains are refined, the cast structure and the weld joint structure are refined, the recrystallization temperature is increased, the thermal stability of a material is improved, the intergranular corrosion is avoided, and the corrosion performance of the electrophoretic aluminum profile is improved.

The invention relates to a microelectrolytic coupling anoxic bioreacting device and a method for treating a coal-to-gas wastewater phenolic substance by utilizing the device, and aims at solving the problems of low treatment efficiency of an existing coal-to-gas wastewater phenolic substance, large area occupied by a treatment device and high possibility of iron-carbon packing passivation. The device comprises an anoxic bioreacting pool, a mechanical stirring device, a microporous aerating device and an aeration pump. The method comprises the following steps: adjusting pre-treated coal-to-gaswastewater; then transferring into the microelectrolytic coupling anoxic bioreacting device; adding activated sludge inoculating liquid; starting the mechanical stirring device and the microporous aerating device; and controlling the dissolved oxygen concentration. The method is high in sewage treatment efficiency; the COD removing rate is up to 93%; the total phenol removing rate is up to 95%; the volatile penol removing rate is up to 100%. The method is applicable to the technical field of wastewater treatment.

The invention relates to the technical field of lubricating oil, and discloses high-temperature lubricating grease and a preparation method thereof. The lubricating grease is prepared from the following raw materials in parts by weight: 50-70 parts of base oil, 20-30 parts of fatty acid calcium, 10-14 parts of magnesium phosphate, 5-7 parts of liquid paraffin, 5-7 parts of turkey red oil, 16-20 parts of aluminum isopropoxide, 10-12 parts of stearic acid, 8-10 parts of silicone oil, 4-8 parts of nanometer silica powder, 1-3 parts of an antioxidant, 10-18 parts of alkyl phenolic resin, 15-20 parts of phosphate, 10-18 parts of acrylic resin, 18-25 parts of pentaerythritol, 12-18 parts of polyurea, 5-9 parts of trisodium phosphate, 16-24 parts of polyethylene glycol, 4-11 parts of graphite fibers, 3-9 parts of nano molybdenum powder, 5-11 parts of nano cerium oxide powder, 2-8 parts of nano calcium borate, 1-4 parts of sodium antimony gluconate and 1-3 parts of bismuth potassium citrate. According to the preparation method for the high-temperature lubricating grease, the scientific and appropriate components and the reasonable usage amount are combined, so that the prepared lubricatinggrease has the advantages of being stable in quality, excellent in extreme pressure antiwear property, corrosion resistance, oxidation stability and high-temperature resistance and long in service life.

The invention discloses a degradable film and a preparation method thereof and belongs to the technical field of food packaging. The degradable film comprises raw materials in parts by weight as follows: 80-120 parts of inulin, 10-40 parts of tea polyphenols, 10-20 parts of gellan gum, 5-10 parts of xylitol, 5-10 parts of sodium alginate and 200-400 parts of water. The invention further provides the preparation method of the degradable film. The degradable film is obtained by dissolving, fully dispersing, gelatinizing, pouring, drying, ageing, extruding and injection-molding the raw materials. According to the degradable film, the inulin and the tea polyphenols are fully mixed, under the action of the gellan gum, the xylitol and the sodium alginate, the synergistic effect of the raw materials is greatly improved, and the obtained film is natural and edible, has the high degradation velocity, the good tensile strength, the high elongation at break and the good water retention performance, is convenient to use and is low in cost.

The invention discloses a veterinary compound ivermectin injection. The injection is prepared from raw materials in percentage by weight as follows: 0.5%-1% of ivermectin, 1%-3% of monepantel, 2%-6% of albendazole sulfoxide hydrochloride, 0.2%-0.7% of a suspending aid, 0.08%-0.5% of an emulsifier, 0.01%-0.04% of a metal complexing agent and the balance of a complex solvent. The complex solvent isprepared from isopropyl myristate, PVP K30, polyethylene glycol and injection water. The ivermectin, monepantel and albendazole sulfoxide hydrochloride are compounded as insecticidal effective components, the special complex solvent is adopted for preparation, drug activity can be maintained, the synergistic effect of drugs can be promoted, so that the insecticidal spectrum is enlarged, the insecticidal effect is improved, and production of drug resistance can be effectively retarded. Besides, the suspending aid, the emulsifier and the metal complexing agent are added to the injection, thus, the injection forms a stable system and cannot be oxidized easily.

The invention provides environment-friendly type coating with sterilization, mildew-prevention and air purification functions. Raw materials of the coating are prepared from the following components in parts by weight: 55 to 60 parts of alkyd resin, 17 to 20 parts of polyacrylate emulsion, 10 to 12 parts of nano attapulgite, 12 to 15 parts of nano kaolin, 8 to 10 parts of diatomite, 4 to 6 parts of lithium silicate, 5 to 8 parts of polyamide resin, 0.5 to 0.8 part of mineral oil de-foaming agent, 0.8 to 1.2 parts of nano titanium oxide, 8 to 10 parts of gas purification and sterilization powder, 0.5 to 0.8 part of organic bentonite, 0.1 to 0.2 part of ammonium polyacrylate dispersant, 0.1 to 0.2 part of carboxymethyl cellulose, 4 to 6 parts of coconut oil and 45 to 55 parts of de-ionized water, wherein the gas purification and sterilization powder is prepared by crushing dried folium artemisiae argyi, fructus gardeniae, lemon eucalyptus leaf, apple eucalyptus leaf and lemon grass according to the mass ratio of 3 to 1 to 1 to 2 to 1 and mixing.

The invention provides an anti-blue-ray / color-changeable difunctional coating optical material and a preparation method thereof. The difunctional coating optical material comprises an optical base material, an anti-blue-ray coating and a photochromic coating. The anti-blue-ray coating is doped with polyurethane / light absorber / titanium oxide nano composite microspheres, each polyurethane / light absorber / titanium oxide nano composite microsphere has a three-layered composite core-shell structure, the core is a titanium oxide nano microsphere, the middle layer is a light absorber, and the shell ispolyurethane. The barrier spectral range of the anti-blue-ray coating is expanded to a blue-ray spectral range from an ultraviolet spectral range, and under the condition of maintaining high transmittance, the anti-blue-ray / color-changeable difunctional coating optical material has a property of absorbing blue rays in different wave bands in a distinguished manner. The anti-blue-ray coating is matched with the photochromic coating material, functions of the anti-blue-ray coating and the photochromic coating material are integrated, the transmittance can be automatically adjusted according tointensity of light, brightness is controllable by selective transmitting of beneficial light and stopping of harmful light, and thus, light is transmitted as needed.

The invention discloses a high toughness health care wheelchair brake handle sheath and a preparation method thereof. The preparation method comprises the steps of: 1) mixing polyurethane resin, polyvinyl chloride resin, a poe elastic toughening agent, ceramic fiber, glass fiber, bamboo charcoal fiber, tricresyl phosphate, dioctyl phthalate, glycerol, turpentine and a silane coupling agent with a mark of KH550, and then performing first kneading to obtain a mixture M1; 2) adding titanium oxide, an antistatic agent, light protein shale powder and silver nanoparticles into the mixture M1 and conducting second kneading to obtain a mixture M2; and 3) carrying out extrusion molding and processing on the mixture M2 so as to obtain the high toughness health care wheelchair brake handle sheath. The high toughness health care wheelchair brake handle sheath has high strength, good toughness and other excellent mechanical properties, also has health care and antibacterial functions, further ensures the wheelchair users' physical and mental health, and improves the wheelchair use comfort.