30results about How to "Color retention" patented technology

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 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 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 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 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.