773results about How to "Not easy to change color" patented technology

The invention discloses an antibacterial polyethylene film and a method for preparing the same. The film consists of an outer layer, a middle layer and an inner layer; the outer layer consists of low-density polyethylene and linear low-density polyethylene; the middle layer consists of low-density polyethylene and linear low-density polyethylene; and the inner layer comprises low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene, a slipping agent and an antibacterial agent. Compared with the prior art, the antibacterial polyethylene film has the characteristics of broad-spectrum sterilization, lasting antibacterial effect, good safety, no toxicity, no side effects and uneasy discoloration, thereby really achieving the protective function on packaged foods.

The invention discloses a dual-component aqueous polyurethane paint with scrawling resistance and pasting resistance, and a preparation method thereof. The dual-component aqueous polyurethane paint with scrawling resistance and pasting resistance is prepared by using aqueous hydroxy-containing polyacrylic resin dispersion and fatty group polyisocyanate as main film forming substances, adding organosilicon resin emulsion, deionized water, antifoaming agent, wetting agent, dispersant, pigment, dulling agent, wax emulsion and thickening agent and carrying out high speed disperse. The paint has characteristics of high crosslinking density, low surface tension, strong permeability resistance, good scratch resistance, substantial scrawling resistance and pasting resistance, excellent performances of low VOC content, high hardness, good weatherability, brushing resistance and chemical resistance, and is suitable for application fields of municipal public facility, building paint and terrace paint coating, etc.

The invention discloses a flame retardant intensified polybutylene terephthalate composite and a preparation method thereof; weight portions of the compositions for preparing the flame retardant intensified polybutylene terephthalate composite are: 100 portions of medium viscosity PBT resin, 15 to 30 portions of brominated flame retardants, 10 to 30 portions of composite mother particles, and 15 to 150 portions of fiber glass. The product of the invention has good stability of heat resistance and oxygen aging in the treatment process and good stability of heat resistance and oxygen aging in long-term use at high temperature, so light color and bright color products are difficult to change color during the processing period, and difficult to turn yellow or black under long-term use at high temperature, which can satisfy the application in long-term use at high temperature for electronic and electrical components and appearance parts and large power energy-saving light.

The zinc oxide whisker compound germicide composition contains: four-needle shaped zinc oxide whisker 50-80 weight portions, nano zinc oxide 5-25 weight portions, nano titanium oxide 5-25 weight portions, and sodium silicate carrier 10-40 weight portions. It has the advantages of high germicidal effect, capacity of being reused, stable effect, no color change, no need of photocatalyst, convenient use, etc.

The invention relates to a process for preparing minced fish food and products by using meat of fresh water fish such as silver carp, grass carp as raw material, and table salt, modified starch, konjac glucomannan, white sugar, smell removing agent as auxiliary material. The preparing process comprises smell removing, freezing point adjustment, germ-free cooling down, air regulation packaging, and ice temperature storage.

The invention provides a nickel-system polybutadiene rubber composite anti-aging agent with anti-yellowing efficiency, which relates to the technical field of preparing a nickel-system polybutadiene rubber composite anti-aging agent. The composite anti-aging agent comprises a bisphenol monocarboxylic acid ester antioxidant and a phosphite antioxidant and a sulfur antioxidant, the mass ratio of the bisphenol monocarboxylic acid ester antioxidant to the phosphite antioxidant to the sulfur antioxidant is 1:0.3-0.5:0.6-1.2, and anti-aging agent products are added into the nickel-system polybutadiene rubber to obtain an effective anti-aging component, wherein the mass percent of the anti-aging agent to dry glue is 0.2-0.6 percent. The composite anti-aging agent is used for synthesizing nickel-system polybutadiene rubber and has good ageing resistance and yellowing resistance.

The invention relates to a non-cyanide silvering brightener and a plating solution thereof. The non-cyanide silvering brightener uses water as solvent and comprises the following main components: 10-20g/L of sodium dodecyldibenzenesulphonate, 15-30g/L of beta-naphthol ethoxylate, 0.8-2g/L of hydroxyethyl ethylenediamine triacetic acid (HEDTA), 0.5-3g/L of potassium dihydrogen phosphate, 5-15g/L of urea, 3-18g/L of polyethylene glycol, 40-80g/L of sulfur-containing heterocyclic compound and 5-15g/L of nitrogen-containing carboxylic acid. The brightener of the invention does not contain cyanide, the mirror surface of the coating is bright, the same effect of cyanide-containing silvering can be realized; the performance tests of the coating show that the color of the coating obtained by using the non-cyanide bright silvering plating solution of the invention is difficult to change, and the coating has low brittleness and good adhesive force and can meet the requirements on coating in different application aspects.

The invention discloses a flame-retardant antibacterial transparent polypropylene material and a preparation method thereof. The polypropylene material is prepared from the following components in percentage by weight: 79.1-91.2% of polypropylene, 3.0-5.0% of linear low-density polyethylene, 2.0-5.0% of toughening agent, 0.1-0.3% of white oil, 1.0-4.0% of flame retardant, 0.1-0.4% of nucleating agent, 2.0-5.0% of antibacterial agent, 0.4-0.8% of lubricant and 0.2-0.4% of antioxidant. The flame-retardant antibacterial transparent polypropylene material disclosed by the invention has the advantages that the flame retardant and antibacterial agent in the formula are compounded, thus the prepared polypropylene material has the flame retardant and antibacterial effects at the same time; and the product has low smoke density during combustion, is difficult to change color and has low cost.

The invention discloses a high-performance wickerwork coating which is prepared from the following components: waterborne polyurethane, silicon-acrylate emulsion, dioctyl phthalate, shellac resin, mung bean starch, polyvinyl alcohol, a filler, an antibacterial additive and water. Compared with the existing wickerwork coating, the wickerwork coating disclosed by the invention is high in storage stability and long in coating film service life; compared with the coating film service life of the common wickerwork coating, the coating film service life of the high-performance wickerwork coating is prolonged by twice or triple; a paint layer formed by the coating is touch, high in brightness, high in adhesive force, anti-acid, anti-sulfur, high in salt resistance, stable in performance, and not liable to corrode and discolor; the coating disclosed by the invention is extremely high in high-temperature resistance, high in adhesive force, and not liable to fall off; furthermore, during use, the coating can be quickly dried and is high in leveling property; moreover, the coating is harmless to the environment and a human body, and is environment-friendly.

The invention relates to an ice-temperature modified atmosphere preserved water cooked minced fillet octopus ball. The ice-temperature modified atmosphere preserved water cooked minced fillet octopus ball is prepared by heating, boiling and forming minced fillet, starch, emulsified slurry, egg white, starch glue, sodium glutamate, granulated sugar, a taste promoter, sugar essence, Tarinsan, Tarilin, seafood essence, an octopus head, ice water and muddy garlic. The preparation method comprises the following steps: placing 33kg of refrigerated minced fillet into a kneader for kneading; then adding 2.1ks of salt, 22ks of starch, 24ks of emulsified slurry, 1.1ks of egg white, 0.18ks of starch glue, 1.1ks of sodium glutamate, 2ks of granulated sugar, 0.44ks of taste promoter, 0.03ks of sugar essence, 0.1ks of Tarinsan, 0.1ks of Tarilin, 0.5ks of seafood essence, 9ks of octopus head, 3.6ks of ice water and 1.8ks of muddy garlic; kneading and mixing the raw materials evenly to prepare the fish balls or fish cake; then placing the fish balls or fish cake into a sterile cooling chamber for cooling down the fish balls or fish cake; carrying out the vacuum blowup packaging of the cooled fish balls or fish cake; and then storing the fish balls or fish cake in a non-frozen state at a temperature of between 0 and 3 DEG C below zero so as to reach the aim of preservation.

The invention relates to a nickel-free black tin cobalt alloy plating solution and an electroplating technology by using same. The parameters and contents of all components of the plating solution are as follows: the content of tin ions in a tin salt is 0.05-6g/L; the content of cobalt ions in a cobalt salt is 0.05-0.8g/L; the content of third metallic ions is 0.02-50g/L; the content of a complexing agent is 0.1-180g/L; the content of a blacking agent is 0.1-50g/L; the content of a PH buffer is 5-300g/L; the baume degree of the plating solution is 6-250; the temperature is 20-55 DEG C; and PH is 9-13. According to the technology provided by the invention, tin is taken as a main alloy layer and few cobalt and third and fourth metal ions are added in tin to form a ternary or quaternary alloy system; the cobalt content in the common black tin cobalt alloy plating solution excesses 8g/L, but the cobalt content is reduced to 0.05g/L according to the new electroplating technology provided by the invention; the special biodegradable or non-biodegradable stabilizing complexing agent and PH buffer are used, so that the production cost is lowered; and the nickel-free black tin cobalt alloy plating solution meets the limitation requirement on CO in the European Union Rosh standard, Germany LMBG standard, Mattel children toy standard, European Oeko-Tex Standard 100 standard and the like.

A coating system for floors, containing a) one or more agents in which, together or separately, a polymer or polymer/wax dispersion and aziridine and, where desired, a flatting component are present, for application on the floor in order to form a crosslinked base film that is not capable of being removed by wet chemical means, as well as b) an aziridine-free agent containing conventional floor-maintenance components, in particular a polymer or polymer/wax dispersion, for the purpose of generating a sacrificial film on said base film that is capable of being removed by wet chemical means.

The invention discloses a high-efficiency safe environment-friendly all-synthetic cutting fluid and a preparation method thereof. The cutting fluid consists of the following components in percentage by weight: 20-30% of synthetic ester, 4-8% of surfactant, 5-15% of antirust agent, 2-10% of pH regulator, 0-3% of corrosion inhibitor and the balance of deionized water. The preparation method comprises the following specific steps: adding the pH regulator into part of the deionized water and stirring uniformly; adding the corrosion inhibitor and the antirust agent in turn and stirring until solid powder is completely dissolved; after uniformly mixing and stirring the synthetic ester, adding the surfactant of the proportion and stirring for 15 minutes till uniformity; pouring a semi-finished product into the reaction system and stirring uniformly; repeatedly flushing the preparation container with the rest deionized water, and completely beating the flushing liquid back into the reaction system; and continuously stirring the reaction system until the solution is uniform and transparent to obtain a finished product. In the invention, the prepared all-synthetic cutting fluid has excellent lubricating and antirust and corrosion inhibition properties as well as good stability at high and low temperature to avoid color change, and avoids stimulation to the skin of a human body; and moreover, the all-synthetic cutting fluid has good biological stability and is safe, environment-friendly and non-irritant.

An antibacterial glaze material comprises a nano zirconium phosphate silver-loaded antibacterial agent, nano titanium dioxide, zinc oxide, copper oxide, Jiushan local glaze stone, quartz, talcum, copper ores and calcite. The antibacterial glaze material has the advantages that the nano zirconium phosphate silver-loaded antibacterial agent and the nano titanium dioxide are added into the glaze material, so that the glaze material has good antibacterial property, is non-toxic and pollution-free, and is suitable for the glaze formula of Jun porcelain kitchenware such as plates and bowls; the glaze material is good in fluidity, less prone to blistering and good in glossiness, and Jun porcelain glaze prepared by the glaze material is stable and uniform in color.

The invention provides high-flash-point low-condensation-point transformer oil. Narrow fraction naphthenic oil is taken as basic oil, and an antioxidant, a condensation depressant, a photosensitizing agent and a metal deactivator are added, wherein the narrow fraction naphthenic oil accounts for 97-98% of the transformer oil in percentage by weight, the antioxidant accounts for 0.5-1.0% of the transformer oil in percentage by weight, the condensation depressant accounts for 0.5-1.0% of the transformer oil in percentage by weight, the photosensitizing agent accounts for 0.1-0.5% of the transformer oil in percentage by weight, and the metal deactivator accounts for 0.1-0.5% of the transformer oil in percentage by weight. The invention further provides a preparation method of the high-flash-point low-condensation-point transformer oil. The closed-cup flash point of the transformer oil provided by the invention can be 195-220 DEG C, the condensation point of the transformer oil can be up to minus 55 DEG C, the security property of the transformer oil is greatly better than that of the conventional transformer oil, and the transformer oil is applicable to extremely cold areas because of the low condensation point. The transformer oil is excellent in gassing performance, and no gas can be easily generated after the transformer oil is used.

The invention relates to a continuous carbon fiber-reinforced PA6 composite with high strength, high modulus, electrical conductivity and thermal conductivity, and a preparation method thereof. The composite comprises, by weight, (1) 100 parts of PA6 resin, (2) 0.2 to 1 part of an anti-oxidant, (3) 0.2 to 1.2 parts of a flow promoter, (4) 2 to 10 parts of a flexibilizer and (5) 1 to 5 parts of a compatilizer. The preparation method comprises the following steps: premixing the above components according to a certain ratio, carrying out melting and mixing via a double/single-screw set and then extruding the obtained mixture into a die head for flow splitting and impregnation so as to prepare the continuous carbon fiber-reinforced PA6 composite with high strength, high modulus, electrical conductivity and thermal conductivity. Compared with conventional staple carbon fiber-reinforced PA6 composites, the continuous carbon fiber-reinforced PA6 composite prepared by using a special impregnation process in the invention has greatly improved mechanical properties since the length retention rate of carbon fibers in a PA6 carrier is high or continuous and has substantially improved electrical conductivity and thermal conductivity due to a continuous network structure, so the application range of the composite is greatly broadened.

The invention provides a preparation method of a gel ball. The preparation method of the gel ball comprises the following steps: a, mixing sodium alginate, konjac glucomannan and sugar with water to obtain a mixed solution; b, mixing the mixed solution with citric acid monohydrate, potassium sorbate and pigment to obtain a co-mixed sol; and c, adding the co-mixed sol to a calcium lactate solution and carrying out cross-linking to obtain the gel ball. The pH value of the gel ball prepared by the preparation method is 3.9-4.4, the Brix value is 4.5%-7.5% and the particle diameter is 3.0mm-6.0mm. The gel ball is stable under the acid conditions and has small possibilities of deforming out of water, changing color and taste and growing microorganism; the gel ball can be added to jelly or other foods for use. Experimental results show that the composite gel ball prepared by the method can be placed in a heat preservation box at a temperature of 37 DEG C without change in color, taste, hardness and the like in nine weeks; microbiological detection is also qualified.

The invention discloses anti-rust oil, which consists of the following raw materials in parts by weight: 50-60 parts of kerosene, 10-20 parts of light diesel oil, 1-2 parts of barium petroleum sulfonate, 2-3 parts of triethanolamine oleate, 2-3 parts of stearic acid, 4-5 parts of dioctyl phthalate, 1-3 parts of zinc dialkyl dithiophosphate, 1-2 parts of 2,6-butylated hydroxytoluene, 3-4 parts of alkenyl butanedioic acid, 2-3 parts of coalescing agent, 1-2 parts of 2-aminoethyl heptade-alkenyl imidazoline and 0.2-0.3 part of dimethicone. The anti-rust oil prepared by the invention is difficult to discolor and oxidize, cannot influence the appearance of a workpiece and has hig comprehensive performance, high salt mist resistance, high damp-heat resistance, high aging resistance and high cleanability; by the coalescing agent, the surface tension of an oil film is improved, so that the oil film can be uniformly sprayed; the spreading performance on the surface of a metal workpiece is high; the formed oil film is uniform and stable; and the metal retaining protection effect is enhanced.

The invention provides a copper nano composite antibacterial coating and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a copper nano colloid by adopting a chemical reducing method, and performing centrifuging and drying to obtain copper nanopowder; S2, uniformly dispersing the copper nanopowder in electrostatic spraying powder to obtain copper nano composite antibacterial powder; and S3, spraying the copper nano composite antibacterial powder on the metal surface by adopting an electrostatic spraying process to form the copper nano compositeantibacterial coating on the metal surface. The copper nano composite antibacterial coating prepared according to the preparation method is high in antibacterial performance, is non-toxic and tasteless, and is not likely to change in color, is simple in preparation process, is lower in cost, and has a great application prospect in the surface coating field of metal products in home appliances, file cabinets, medical devices and the like.

The invention belongs to the technical field of metal processing and particularly relates to fully-synthesized environmentally-friendly cutting liquid for aluminum alloy processing as well as a preparation method thereof. The fully-synthesized environmentally-friendly cutting liquid for aluminum alloy processing comprises the following components in parts by weight: 5 to 25 parts of carboxylic acid ammonium salt composite antirust agent, 5 to 30 parts of sulfonated castor oil, 2 to 15 parts of water-soluble lubricating agent, 1 to 6 parts of monoacid, 0.5 to 2 parts of mildew-proof fungicide,0.02 to 1 part of defoaming agent and 20 to 55 parts of water. According to the fully-synthesized environmentally-friendly cutting liquid for aluminum alloy processing, which is provided by the invention, through compounding of the sulfonated castor oil and the water-soluble lubricating agent, high lubricating property is provided, and the fully-synthesized environmentally-friendly cutting liquidfor aluminum alloy processing serves as a cutting liquid product not containing oil and can replace semi-synthesized cutting liquid with low oil content under the same condition; in addition, throughcompounding of castor oil acid, organic acid and special alcohol amine, the protective effect that aluminum alloy is not liable to change color is achieved, and high lubricating requirement in the processing process of the aluminum alloy is met.

The invention discloses probiotic dry red wine and a preparation method thereof. The preparation method includes that dry red wine and rose flowers are used as raw materials, and low-temperature extraction technologies like high-voltage pulse electric field, microwave, ultrasound and biological enzymolysis are organically combined, so that functional substances and fragrant ingredients of the rose flowers can be retained to maximum extent; probiotics like functional Lactobacillus plantarum are used as fermentation agents, and temperature-variable fermentation and graded inoculation are adopted, probiotic multiplication and accumulation of functional metabolite can be realized to maximum extent, malic acid in the dry red wine can be further converted into lactic acid, acor of the dry red wine can be eliminated, and taste, healthcare function and wine stability of the dry red wine can be improved; the high-voltage pulse electric field, ultrasonic technology and peracetic acid are combined to accelerate aging, so that the probiotic dry red wine obtained has quality equivalent to that of existing fermented common dry red wine after aging for 8-10 years, and is good in aging effect, short in period and high in efficiency.

The invention discloses an antibacterial reinforced nylon material and a preparation method thereof. The antibacterial reinforced nylon material is characterized by being prepared by using a compound antibacterial agent formed by combining a rare earth silver system inorganic antibacterial agent and titanium dioxide as an antibacterial agent of antibacterial nylon master batch, and mixing with reinforced nylon. The weight ratio of two raw materials of the antibacterial nylon master batch to the reinforced nylon is 1:(10-35), wherein the antibacterial nylon master batch comprises a compound antibacterial agent and nylon, wherein the compound antibacterial agent accounts for 1-30 percent the total weight of the antibacterial nylon master batch, and the nylon accounts for 65-95 percent the weight of the compound antibacterial agent. The alkali-free short glass fiber in the reinforced nylon accounts for 30 percent. The preparation method comprises the three steps: preparing the antibacterial nylon master batch, preparing the reinforced nylon, and uniformly distributing the antibacterial nylon master batch in the prepared reinforced nylon. According to the preparation method, the strength of the nylon is ensured, and the antibacterial agent is uniformly distributed in the nylon, so that the antibacterial effect is more ideal, and the antibacterial reinforced nylon material is not easy to discolor, and has an antibacterial broad spectrum property.

The invention provides a nanometric and aqueous coating. The nanometric and aqueous coating is characterized by being prepared from the following components in percentage by mass: 50 to 60% of aqueous acrylate emulsion, 0.2 to 2.0% of a preservative, 0.2 to 1.0% of an aqueous antifoaming agent, 0.3 to 1.0% of a water-based leveling agent, 0.2 to 1.5% of coalescing agent, 1 to 10% of silica sol, 5 to 10% of nanometer titania, 5 to 10% of nanosilicon dioxide, 10 to 15% of glass fiber, 2 to 3% of a thickening agent, 0.1 to 0.15% of a dispersing agent, 2 to 8% of propylene glycol, and 20 to 30% of water. The nanometric and aqueous coating is high in waterproof performance, adhesion force and hardness, high in antibacterial performance, easy to scrub, nontoxic, environmentally friendly, difficult to discolor, high in ageing resistance, low in cost, and high in practicability.