30results about How to "Color retention" patented technology

A radon-screening water emulsoid paint used as decorative paint for preventing radon, benzene, xylene and formaldehyde from being educed from wall and adsorbing them contains water, hydroxyethyl cellulose, disperser, defoaming agent, levelling agent, light calcium carbonate, titanium oxide, bentone, talc powder, ethanediol, film forming agent, PVDF-acrylate copolymer and vinyl acetate-acrylate copolymer emulsion, and antibacterial mildew-proof agent.

The invention relates to a processing method of biological specimens before embedment. The method is that the biological specimens is dipped into a processing solution prepared with formaldehyde withthe concentration of 37 to 40 percent per 37.5 to 42.5ml and 57.5 to 62.5g of carbamide for 1 to 3 days and then the specimens are transferred to place in an incubator of 30 to 40 DEG C for 1 to 4 hours and then the specimens are embedded with transparent urea-formaldehyde resin. The processing method has the advantages of effectively moisture removing, lower cost, simple operation, better embedment effect and anti-mildew, anti-pest and color preserving, and is especially applicable to the embedment of biological specimens with more water content, such as Flammulina, Craspedacusta, earthworms,small mollusks and fish, etc.

The invention relates to an encapsulating method for a biological specimen. The technical proposal adopted is that: a biological specimen is fixed, sterilized, antisepticised and cleaned, polyoxyethylene (PEG six hundred) is used to plasticize the specimen, the plasticized specimen is placed in a porcelain dish which is provided with absorbent paper, is then put into an incubator of thirty degrees to forty degrees for twelve to twenty-four hours and are finally fully integrated with a prepared transparent Lauxite until the preparation of specimen is completed. The encapsulating method has the advantages of a good encapsulating effect, mould proofing, insect prevention and color retention, which is particularly applicable to encapsulating the biological specimen with more water content, such as Craspedacusta, earthworms, mollusks and small-sized fishes.

A nano coating is prepared by nano-composite size added with fillers and various auxiliary agents; wherein, the average grain size of the nano powder formed by covering in the nano coating is 35 nanometers; the spherical nano powder has ends with surfaces closed and lotus leaf-like surface microstructure; the nano powder also has tap density of 0.15-0.5g / cm and specific surface area of 125-180 / g; the nano coating comprises the following materials by weight percent: 3.8% of ionized water, 10-12% of nano size, 2.5-2.8% of glycol, 5.3-5.7% of hydroxyethyl cellulose, 1.4-1.7% of film forming auxiliary agent, 28-29% of titanium dioxide, 2-3% of calcined kaolin, 2-3% of heavy calcium carbonate, 39-40% of phenylethylene-propyl ethylene acid ester emulsion, 0.5-0.6% of propylene glycol, 0.1-0.2% of bactericide, 0.2-2% of thickener, 0.1% of defoamer, 0.27% of dispersant, 0.06% of wetting agent and 0.2% of pH value regulator. The coating is bactericidal, nontoxic, tasteless and resistant to 300000 times of washing.

The invention relates to a method for preparing hydroxypropyl methacrylate. The method comprises the following steps of: putting 1,000 ml four-mouth flask on water bath, wherein a stirrer, a thermometer, a reflux condenser and a constant-pressure drop funnel are arranged in the 1,000 ml four-mouth flask; adding ferric oxide, hydroquinone and methacrylic acid into the four-mouth flask; heating the mixture to the temperature of between 80 and 85 DEG C in the water bath, stirring for 1.5 hours and dripping propylene oxide into the mixture by using the constant-pressure drop funnel; after the dripping is finished, continuing the reaction for 1 hour at the temperature of between 80 and 85 DEG C; and transferring the reactant into a Kolle distillation flask, adding a proper amount of hydroquinone again, performing reduced pressure distillation and collecting fraction, namely the finished product, at the temperature of between 73 and 77 DEG C under the pressure of 4 to 5 mmHg. The hydroxyethyl methacrylate prepared by the method contains a double bond and a hydroxyl group and is a bifunctional monomer and can be widely used as a crosslinking monomer in paint and an adhesive; and the acrylic resin paint serving as a film forming material has the characteristics of light color, gloss retention, color retention, high weather resistance, stability to acid, water and alcohol, convenient coating process, soft and hard coating performance, durability and the like.

The invention relates to a moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method. The moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method includes the following steps that S1, newly-picked whole fresh flowers are completely soaked into first stationary liquid, stationary color retaining is conducted for 5 h to 7 h, the obtained flowers are taken out and washed with flowing water for 8 min to 12 min, after washing is completed, residual washing water on surfaces are blown to be removed, and the obtained flowers are ready for use; S2, the fresh flowers ready for use in S1 are completely soaked into second stationary liquid, stationary color retaining is conducted for 3 h to 5 h, the obtained flowers are taken out and washed with flowing water for 4 min to 6 min, after washing is completed, residual washing water on the surfaces are blown to removed again, and the obtained flowers are ready for use; the fresh flowers ready for use in S2 are soaked with preserving liquid or embedded with high molecular resin, and specimens are obtained. The moisture-preserving, freshness-retaining and color-retaining fresh flower specimen making method has the advantages that the obtained fresh flower specimens have the characteristics of moisture preserving, freshness retaining and color retaining, it is avoided that fresh flowers are dried with air and dried beside or over a fire, and the made fresh flower specimens have soft tissue and are not rotted, subjected to color changing and deformed; the fidelity of the made fresh flower specimens is higher, the color and the shape of the specimens can be kept for a long time, and the technology is initiative at home and abroad.

Te invention relates to a preparation method of hydroxypropyl acrylate, which comprises the following steps of: preparing a crude product through the reaction of acrylic acid and propylene oxide under the action of iron trioxide as a catalyst and hydroquinone as a polymerization inhibitor, and then obtaining the finished product of the hydroxypropyl acrylate through reduced-pressure distillation. Because the hydroxypropyl acrylate prepared by the method is provided with double bonds and hydroxyl groups, the hydroxypropyl acrylate belongs to a difunctional monomer and can be widely used as a crosslinked monomer in coatings and adhesives; and an acrylic resin coating used as a film forming substance has the characteristics of light color, gloss retention, color retention, good weather resisting property, stability for acid, water and alcohol, convenient coating process, soft and hard performance of a coated film, durability and the like.

The present invention relates to a kind of synthetic method of hydroxyethyl methacrylate, and the steps of synthetic method are: (1) place 1000ml four-neck flask on water bath, add ferric oxide, p-hydroxyanisole and methacrylic acid, water bath Heat to 80-85°C, replace the air in the reaction bottle with nitrogen, and then pass in ethylene oxide gas after the ferric oxide is completely dissolved in methacrylic acid. The aeration time is 3.5-4.5 hours. 1.5h; (2) Transfer the reactant to a Kjeldahl distillation flask, then add an appropriate amount of p-hydroxyanisole for vacuum distillation, and collect the fraction at 80-86°C / 4-6mmHg to be the finished product. The present invention selects the novel high-efficiency polymerization inhibitor p-hydroxyanisole, which is superior to other polymerization inhibitors (such as hydroquinone). The effect is remarkable and the dosage is small, which can fully meet the requirements of use and guarantee the product quality.

The invention relates to a synthesis method of hydroxypropyl acrylate. The steps are: (1) placing a 1000ml four-neck flask on a water bath, adding iron sesquioxide, p-hydroxyanisole and acrylic acid, heating the water bath to 80-85°C, Under stirring, drop a certain amount of propylene oxide with a constant pressure dropping funnel within 1-2 hours, and continue the reaction at 80-85°C for 0.5-1.5 hours after the dropwise addition is completed. (2) Then transfer the reactant into a Kjeldahl retort, add an appropriate amount of p-hydroxyanisole for vacuum distillation, and collect the fraction at 75-90°C / 4-6mmHg to be the finished product. The present invention selects the novel high-efficiency polymerization inhibitor p-hydroxyanisole, which is superior to other polymerization inhibitors (such as hydroquinone). The effect is remarkable and the dosage is small, which can fully meet the requirements of use and guarantee the product quality.

The invention discloses a preparation technology for watermelon juice capable of improving immunity. The preparation technology comprises the steps of 1 pre-treatment, wherein seedless watermelons areselected, peeled and frozen, and after the watermelons are cut into pieces and frozen, the frozen watermelon pieces are placed in an additive solution containing mango peel extracts and aloe extractsand taken out for unfreezing; 2 juicing, wherein saccharose is sprayed to the surfaces of the thoroughly unfrozen watermelon pieces for preserving, then the preserved watermelon pieces are juiced, and filter residues and filter liquor A are obtained after vacuum extraction filtration; the filter residues and watermelon peels are mixed, smashed and subjected to ultrasonic dispersion, and after juicing and extraction filtration, filter liquor B is obtained; 3 compounding, wherein the filter liquor A is mixed with the filter liquor B, and then after ultrafiltration, sterilization and metal and microbiological detection, the watermelon juice capable of improving the immunity is obtained. The preparation technology has the advantages that the preparation technology is simple, not only are allthe effects of the watermelons utilized, but also the additional value and economic value of the watermelons are improved, and the watermelons have excellent health care effects of blood fat reductionand weight losing, can maintain dynamic balance of the organism oxidation and antioxidant system, remove redundant free radicals, and improve the organism phylactic power and immunity.

The invention discloses a preparation method of a finish-coat-free stain-resistant weather-resistant water-based multicolor building coating. 200-250 parts of colorful guar gum with the concentrationbeing 5%, 0.5-0.8 parts of EHEC cellulose, 600-650 parts of dispersed phase colored paint obtained in step 2 and 200-250 parts of a colorful continuous phase obtained in step 3 are sequentially fed into a reaction kettle, stirring is performed for 45-55min at the rotating speed of 500-1000r / min, and after the reaction is finished, the finish-coat-free multicolor paint is obtained. According to theinvention, the application performance of the water-based multicolor paint can be improved, a finish coat is not needed, the construction process and construction procedures of water-based multicolorpaint construction are simplified, the construction cost is reduced, and the construction efficiency is improved; and meanwhile, the water-based colorful high decorative property and the use durability, especially the color retention property, the weather resistance, the floating resistance and the like, are met.

The invention discloses thermal-insulation and self-cleaning coating. The coating can be directly used on a metal exterior protection plate, has a good thermal-insulation effect, is environment-friendly, sanitary, convenient for cleaning, attractive and durable and can reduce construction workload of the thermal-insulation layer of a metal exterior protection plate. The coating comprises the following materials in percentage by weight: 60 to 90 percent of polyvinylidene fluoride, 5 to 10 percent of nano carbon tubes, 1 to 5 percent of titanium oxide, 5 to 10 percent of pigment and the balanceof additive. The invention can be widely used in the field of building materials.

The invention provides a preparation method of a nano coating. In the method, nano-composite size is adopted and added with fillers and various auxiliary agents; the mixture is mixed and reacts in a reaction kettle, sheared, emulsified, milled and dispersed in a sand mill, concocted in a paint mixing kettle and filtered in a filter so as to prepare the nano coating. The method comprises the following steps: step 1: concocting nano calcium carbonate size; step 2: preparing nano-composite size; step 3: employing the reaction kettle for mixing and reaction; step 4: employing a high-speed shear emulsifying machine for shearing and emulsifying for 30min; step 5: transferring the size to the sand mill for milling and dispersion for 2-3 times, with 30-50min per times; step 6: transferring the size to the paint mixing kettle to be stirred, adding phenylethylene-propyl ethylene acid ester emulsion, a film forming auxiliary agent and a defoamer while stirring and finally adding propylene glycoland a bactericide; step 7: adjusting the pH value to 8-9; step 8: adding a thickener to ensure the viscosity to be 3000-4000 MPa.S; step 9: adopting a coating filter for filtering and preparing the finished product after filtering. The coating is bactericidal, nontoxic, tasteless and resistant to 300000 times of washing.

The invention provides a fresh-keeping method of orange Pu'er tea. The fresh-keeping method comprises the following steps: performing radiation sterilization treatment on tea leaves by utilizing 60Co-gamma rays; then performing secondary water removal, putting dehydrated tea leaves in a microwave water removing machine for water removal again and simultaneously introducing mixed gas to keep for 24-30 hours. The fresh-keeping method provided by the invention has the benefits that the moisture content of the tea leaves is stable, the freshness of the tea leaves is kept, and the moisture of the tea leaves is locked; therefore, in the making process of the tea leaves, the tea leaves still have good color and luster in the case of long-term preservation.

The invention relates to a phycocyanine preparation and the preparation thereof. The phycocyanine preparation comprises the following raw material components in percentage by weight: 10%-99.7% of a spirulina extract and 0.3%-90% of a stabilizer. Compared with the prior art, the heat resistance of the phycocyanine preparation can be remarkably improved, no adverse effect is generated on the coloring power of the phycocyanine preparation, the original characteristics of the phycocyanine preparation are basically maintained, the operation is simple, the implementation is easy in the food industry, and no toxic or side effect is generated on a human body; the phycocyanine preparation can be used as a natural, safe and healthy food coloring raw material.

The invention provides a method for protecting the surface of a climbing structure for electric power maintenance, which belongs to the technical field of electric power maintenance auxiliary appliances, and includes the following steps: S1: preparing a primer: adding acrylic resin, a coupling agent, a leveling agent, and water to a stirrer Stir, then filter, and stand still; S2: Coating primer: remove impurities on the surface of the substrate, apply the primer to the substrate, and let it dry until the surface of the primer does not flow; S3: Coating protection Lacquer: Apply protective lacquer to primer-coated substrate and allow to dry. The primer of the present invention has strong adhesion, excellent comprehensive performance of the protective paint, and strong adhesion. The paint film is intact through the cross-cut test, and the water absorption rate is 1.23-1.27%, showing excellent waterproof performance; acid and alkali corrosion resistance , After soaking in the acid-base solution, the surface of the paint film has no wrinkles, bubbles, and peeling; the aging performance test shows that the loss rate is 15.5-14.8%, and the cracking level is 2. It is aging-resistant, stable in performance and long in service life.

The invention discloses a hardware connecting rod capable of being used for an electric telescopic door. One end of a connecting rod I of the hardware connecting rod and one end of a connecting rod IIof the hardware connecting rod are of vertical symmetrical structures; a connecting rod III and a connecting rod IV are also of vertical symmetrical structures; a groove is formed in one end of the connecting rod I; through holes I are formed in positions, extending to the outer end surface of the connecting rod I, at the two ends of the groove; one end of the connecting rod II is blocked into the groove, and a through hole II is formed in the end part of the connecting rod II; a rotary shaft sequentially passes through the through holes I and the through hole II; the connecting rod I and theconnecting rod II are rotatably connected through the through holes I, the through hole II and a rotary shaft; the connecting rod III and the connecting rod IV are movably connected through same mechanisms adopted by the connecting rod I and the connecting rod II; the middle part of the connecting rod II clings to the middle part of the connecting rod IV, and the clung parts are equipped with pinrolls; and an anti-corrosion coating is coated on the surface of the hardware connecting rod. The hardware connecting rod easily opens the telescopic door, and enables the telescopic door to be resistant to corrosion.

A nano coating is prepared by nano-composite size added with fillers and various auxiliary agents; wherein, the average grain size of the nano powder formed by covering in the nano coating is 35 nanometers; the spherical nano powder has ends with surfaces closed and lotus leaf-like surface microstructure; the nano powder also has tap density of 0.15-0.5g / cm and specific surface area of 125-180<2> / g; the nano coating comprises the following materials by weight percent: 3.8% of ionized water, 10-12% of nano size, 2.5-2.8% of glycol, 5.3-5.7% of hydroxyethyl cellulose, 1.4-1.7% of film forming auxiliary agent, 28-29% of titanium dioxide, 2-3% of calcined kaolin, 2-3% of heavy calcium carbonate, 39-40% of phenylethylene-propyl ethylene acid ester emulsion, 0.5-0.6% of propylene glycol, 0.1-0.2% of bactericide, 0.2-2% of thickener, 0.1% of defoamer, 0.27% of dispersant, 0.06% of wetting agent and 0.2% of pH value regulator. The coating is bactericidal, nontoxic, tasteless and resistant to 300000 times of washing.

The invention provides an electric power overhaul climbing structure surface protection method, and belongs to the technical field of electric power overhaul auxiliary appliances. The electric power overhaul climbing structure surface protection method comprises the steps of S1, preparing a priming solution, specifically, adding acrylic resin, a coupling agent, a leveling agent and water into a stirrer for stirring, and then filtering and standing; S2, coating the priming solution, specifically, removing impurities on the surface of a base material, coating the base material with the priming solution, and airing until the priming solution is semi-dry, that is, the surface of the priming solution does not flow; and S3, coating protective paint, specifically, coating the protective paint on the base material coated with the priming solution, and airing. The priming solution disclosed by the invention is high in adhesive force, the protective paint is excellent in comprehensive performance and high in adhesive force, a paint film is intact through a cross-cut method test, the water absorption rate is 1.23-1.27%, and excellent waterproof performance is shown; acid and alkali corrosion resistance is achieved, and after the paint is soaked in an acid-base solution, the surface of a paint film is free of wrinkling, bubbles and peeling phenomena; and an aging performance test shows that the gloss loss rate is 15.5-14.8%, the cracking grade is 2, aging resistance is achieved, the performance is stable, and the service life is long.

The invention relates to the technical field of waterproofing agents, and in particular relates to a preparation method of the multifunctional building waterproofing agent. The method comprises the following steps of: (1), adding 20-30 parts by weight of talcum powder, 30-50 parts by weight of water and 5-10 parts by weight of sodium chloride into a container and uniformly mixing; and (2), adding 1-3 parts by weight of sodium hydroxide, 6-8 parts by weight of gelatin, 5-7 parts by weight of urea and 1-2 parts by weight of boric acids into a mixed material obtained in the step (1) and uniformly stirring for 20-30 minutes to obtain a product. The preparation method has good waterproof effect; through the reaction with alkali substances in cement or masonry, gaps between mortar and concrete are compact, so that the compactness degree of the product is correspondingly improved and the aim of waterproofing is fulfilled; and meanwhile, the waterproofing agent is short in curing time and is not affected by external environment during construction, and the construction can be carried out at all seasons; and a finished product can be maintained for 5 years at 40 DEG, and the harm to the human and three-wastes pollution are avoided; and therefore, the multifunctional building waterproofing agent is an environment-friendly product.

The invention relates to the technical field of aerosol spray paint, and discloses a water-based aerosol spray paint for repairing wooden furniture. The water-based aerosol spray paint includes the following components in parts by weight: 40-60 parts of acrylic resin emulsion; 8-12 parts Epoxy resin; 3-4 parts of oxidized polyethylene; 2-4 parts of curing agent; 0.3-0.6 parts of thinner; 0.6-1.2 parts of pigment. The present invention has the following advantages and effects: acrylic resin has the characteristics of light color, high transparency, color retention, weather resistance, heat resistance, corrosion resistance, strong adhesion, hardness, toughness, etc., and epoxy resin has excellent bonding performance and Physical and mechanical properties, the combination of the two can improve the overall performance of the spray paint, and can improve the adhesion of the paint film after the spray paint is sprayed on wooden furniture, thereby effectively improving the durability of the paint film.

The invention discloses an anti-cracking crack filling composition and a preparation method thereof and relates to the technical field of wall materials. The anti-cracking crack filling composition isprepared from the following raw materials: 70-90 parts of styrene-butadiene latex, 70-90 parts of cement, 30-45 parts of molding agent, 20-30 parts of silicon micro powder, 15-25 parts of calcium oxide concrete expansion agent, 10-15 parts of polyacrylamide, 10-15 parts of vinyl acetate and ethylene copolymerized emulsion powder, 10-15 parts of filler, 5-10 parts of modified penicillin fungi residue filtrate, 5-10 parts of litsea cubeba oil, 2-6 parts of sodium citrate, 2-6 parts of sodium lauryl sulfate, 1-5 parts of dispersant and 30-60 parts of water. The anti-cracking crack filling composition has excellent permeability and adhesion, and is rapid in molding speed.

The invention discloses a green tea freshness keeping method. The method adds the steps of secondary enzymes deactivation, secondary drying and rapid low-temperature cooling during a green tea processing process. The method has the advantages that through secondary enzymes deactivation, color lasting degree of the tea leaves can be kept, through secondary drying, stabilization of moisture content of the tea leaves can be kept, through rapid cryogenic cooling, retention of the moisture is kept, during the green tea making process, green tea freshness is increased, so that the green tea has good color and mouthfeel under condition of long preservation time.

The invention discloses a composite waterproof sealant as well as a preparation method and application thereof. The composite waterproof sealant comprises a component A, a component B and a componentC, and the mass ratio of the component A to the component B to the component C is (100: 2: 1.2)-(100: 2: 1.8); the component A comprises unsaturated polyester resin, methyl methacrylate, butyl methacrylate, a flexible monomer, an inorganic filler and a thixotropic agent; the component B comprises a pigment and an accelerant; and the component C comprises an initiator. The preparation method of thewaterproof sealant comprises the following steps of respectively preparing the components A, B and C, and grinding and uniformly dispersing the mixture, and uniformly mixing the component A, the component B and the component C according to a mass ratio to prepare the composite waterproof sealant. The composite waterproof sealant has excellent waterproof performance, is superior to existing sealants in the aspects of bonding strength of dry and wet base surfaces, elongation at break after blade coating and bonding strength retention rate at high temperature, and can be used for highway foundation engineering or bridge caulking engineering.

The invention discloses a diversified waterproof coating, wherein the diversified waterproof coating consists of sodium methylsilicate, a stabilizer and purified water. The diversified waterproof coating has the advantages of simple construction, time saving, labor saving, good watertightness and air permeability, and allows water outside not to infiltrate and moisture inside to be emitted outwards.

The invention discloses a common seepweed herb lipstick and a production process thereof, and relates to the field of lipsticks. The effect of repairing the lip skin is improved; the lipstick is specifically prepared from 15 to 25 parts of natural pigment, 20 to 35 parts of natural grease, 15 to 30 parts of natural beewax, 5 to 8 parts of natural plant essential oil, 30 to 40 parts of tridecyl trimellitate, 20 to 30 parts of diisostearyl malate, 12 to 18 parts of octyldodecanol and 15 to 25 parts of triisostearate. The production process of the lipstick comprises the following steps: taking the raw materials in parts by weight for later use; the suaeda heteroptera extract and the natural grease are mixed and ground into a mixed solution A; according to the lipstick, the natural suaeda heteroptera extract is selected as the lipstick pigment, the use safety is guaranteed, the lipstick is free of skin irritation and suitable for audiences with various sensitive skins, and due to the fact that the suaeda heteroptera seed extract oil is added into the components, the lipstick can play a role in repairing lip cells during use on the basis of the health-care function.

A new type of composite water-based radon-proof latex paint for home interior wall decoration, the components and parts by weight are: water 280-320, hydroxyethyl cellulose 2-3, dispersant 3-5, defoamer 3 ~4, leveling agent 2.5~3.2, light calcium carbonate 100~130, titanium dioxide 170~200, bentonite 45~55, talcum powder 75~150, ethylene glycol 6~7, film-forming aid 3~4, PVDF-acrylate copolymer and vinyl acetate-acrylate copolymer emulsion 350~400, bactericide and antifungal agent 3~3.5. This coating can be used as a decorative coating on the wall, and can also form a barrier layer, which can absorb and prevent the precipitation and volatilization and diffusion of radon, benzene, xylene, formaldehyde, etc., which are harmful to the human body in the wall, and the effect can reach 80%. above.