63results about How to "Slow drying" patented technology

The invention discloses a top coating for a coating layer of a double-sided coating white board as well as a preparation method and application thereof. As the top coating, the double-sided coating white board after being applied and coated by a coating machine not only is suitable for high-grade printing but also is suitable for vacuum forming. The top coating comprises the following components in parts by mass: 20 to 50 parts of kaolin, 50 to 80 parts of calcium carbonate, 10 to 18 parts of latex and 25 to 35 parts of water. The top coating also contains the components of a dispersant, a lubricant, a water repellent agent, a bactericide, a pH regulator and a functional assistant of 0.6 to 3.0 parts by mass of PC4200 soybean protein. By adding the functional assistant, the closure property of the coating layer can be opened, the covering property of the coating is enhanced, the use quantity of wood pulp is reduced, the smoothness of finished paper is lowered, and the infiltration of vacuum forming oil is benefited. The coating is applied and coated on a paperboard by the coating machine, can enable the paperboard to have favorable printing ink acceptance, improves the covering property of a paper face greatly and has lower smoothness and roughness and favorable printing adaptability.

The invention relates to a preparation method of a graphene oxide modified waterborne polyurethane anti-corrosive emulsion, relating to the technical field of preparation of aqueous coatings. The preparation method comprises the following steps: firstly, mixing N,N-dimethylformamide, graphene oxide, a catalyst and glycidyl neocyanate to react to obtain modified graphene oxide; then mixing the graphene oxide, isophorone diisocyanate and polyadipic acid-1,4-butanediol ester, raising the temperature to 85 DEG Ca and then reducing the temperature to 60 DEG C; then adding dibutyltin dilaurate, 5-N-methyl pyrrolidone, epoxy resin, 2,2-dimethylolpropionic acid and trimethylolpropane to react; adding triethylamine to react at the temperature of a reaction material of 60 DEG C; then adding deionized water at 60 DEG C to react; reducing the temperature to 40 DEG C; carrying out filtration; and taking the filtered object to obtain the graphene oxide modified waterborne polyurethane anti-corrosiveemulsion. The shielding capacity of a graphene oxide sheet layer can be further improved by means of hydrophobic effect formed by a long alkyl chain grafted to the surface of graphene oxide.

The invention discloses a method of transplanting a camphor tree. The technical solution thereof has the following key points: the method comprises the process of preparation before transplanting, digging the seedlings, trimming before transplanting, seedling transportation, digging planting holes, sterilization and insecticidal treatment on the planting holes, transplanting, management after transplanting, and spraying of mixed thiophanate and deltamethrin in one week after the transplanting. A straw rope can maintain sufficient water of the seedlings in the seedling digging process, thereby avoiding the problem of dry roots due to lack of water in the transportation process; the seedlings can be protected well, and then the survival rate after transplanting is high.

The present invention discloses a composition and method for repairing scratches to vehicles and other products which have clear-coat finishes. The composition contains a clear-coat combined with a reducer, to which a hardener is added before application. The threshold proportions of the composition are critical to the composition's effectiveness as they produce a long drying time and a fast cure time. This enables the composition to be worked-into the clear-coat surface for sufficient time to obtain excellent coverage, and to cure quickly after it is applied. The composition can be reapplied as often as desired.

A method for producing concentrated flour from wine grape pomace that includes obtaining an amount of wine grape pomace having moisture content from 50-80% and drying the wine grape pomace at a maximum 70° C. over a time period of 24-48 hours. Upon the completion of the drying step, the dried wine grape pomace is screened to remove stems, seeds and milled into flour through a 100 US mesh.

A light weight, molded foot wear carrier consists of a body forming two open cavities with a dividing wall between the cavities. Each body formed cavity is open on a top end there of for easy footwear insertion. The carrier has straps, which may be adjustable, to hold the footwear in a secure position inside the carrier, with one strap extending across each opening for each cavity. The footwear is held upright for ease of insertion and removal. The straps may be formed as elastomeric straps that may be adjustable to hold footwear of various geometries.

The present invention provides a translucent, acrylic based plaster composition, particularly for coating wall surfaces. The composition provides a mottled surface effect.

Methods of manufacturing a ceramic sheet and a gas sensing element are disclosed. At least ceramic powder, a binder and a plasticizer are blended and mixed in slurry. The slurry is formed into unfired green sheets, on which paste is printed. Each of the unfired green sheets has porosity greater than 5%. In the manufacturing methods, the unfired green sheets are pressurized with a pressure of 10 MPa at a temperature above 60° C., after which the paste is printed on surfaces of the unfired green sheets. In the method of manufacturing the gas sensing element, a shielding layer, a porous diffusion resistance layer and the unfired green sheets for a sensing layer, a reference gas airspace forming layer and a heating layer are stacked to form a stacked ceramic body, whish is fired to obtain the gas sensing element.

The invention provides a water-resistant paint composition which comprises the following components in parts by weight: 10 parts of modified polyurethane resin emulsion, 16 parts of modified diphenylmethane diisocyanate, 15 parts of alkyd resin, 6 parts of alumina powder with the granularity of 1000 meshes, 5 parts of nano bentonite, 3 parts of mica powder, 4 parts of dispersing agent, 6 parts of trimethyl hexamethylenediamine, 4 parts of vegetable oil, 4 parts of defoaming agent, 3 parts of zinc sulfate and 35 parts of deionized water. The modified polyurethane resin emulsion, modified diphenylmethane diisocyanate and alkyd resin are used as film forming matters of the paint, thereby effectively enhancing the hydrophobicity, hardness and service life of the coated film.

The invention provides boron-free non-toxic toy ultralight clay and a preparation method thereof, and belongs to the technical field of toys for children. The boron-free non-toxic toy ultralight clay is prepared from the following raw materials by mass: 8-12% of polyvinyl alcohol, 6-10% of chitosan, 1-10% of citral, 0.5-6% of modified calcium carbonate, 5-15% of expandable microspheres, 3-10% of glycerin, and the balance of water. The invention provides a novel boron-free, non-toxic and environment-friendly ultralight clay formula, solves the problem of poor performance of boron-free clay at present, and has the characteristics of safety, no boron, environmental protection, safety, no sticking to hands, fineness, strong shaping capability, good tensile property, low drying speed and good hand feeling.

A seed germinating container allowing germination of seeds under controlled circumstances. The container may make use of a lid containing an opening covered by a mesh strainer allowing for easy removal of water during washing of seeds. The opening is sealable with a cover which may be opened to a variable degree. A seed elevating mesh may support the seeds at a controlled height above the bottom of the container. A porous seed bag containing a measured portion of seeds may be inserted into the germinator for further precision and cleanliness of the germination container.

The invention discloses a Shenghongqingre granule and its producing method which is produced by following material by weight: Ageratum conyzoides, forsythia suspensa, herba bidentis pilosae, Hongmuxiang; the producing method is: extracting above four drugs twice in water to get extract, collecting volatile oil; filtering the extract, concentrating to dense cream, spray drying, producing to granule with proper amount of cane sugar and dextrin, straightening granulating, injecting all of collected volatile oil, producing granule containing sugar; or concentrating the extract to dense cream, spray drying, mixing with proper amount of dextrin and stevio to form granule, straightening granulating, injecting all of collected volatile oil, producing granule not containing cane sugar. The invention only extracts effective components, removing other non-drug components, meanwhile the extracting process can kill the infected microbe of the crude drugs with additive production steps. The invention has a high concentration of effective component, a good curative effect and a simple craft.

The invention discloses an antiseptic treatment device for bamboo-woven artware. The antiseptic treatment device comprises a soaking barrel, a supporting rod is fixedly connected to the soaking barrel, a supporting plate is fixedly connected to the supporting rod, a first lifting rod is slidably connected to the supporting plate, and a fixing box is rotatably connected to one end of the first lifting rod; and a plurality of water inlet holes are formed in the fixing box, a fixing shell is fixedly connected to the supporting plate, a positioning rod is slidably connected to the interior of the fixing shell, and a sliding disc is fixedly connected to one end of the positioning rod. The invention relates to the technical field of bamboo-woven artware. According to the antiseptic treatment device for bamboo-woven artware, after the fixed shell is moved out of the soaking liquid, the electric telescopic rod drives the collision block to collide with the fixed shell so that the fixed shell vibrates, and the soaking liquid on the fixed shell and the bamboo-woven artware quickly drops into the soaking barrel; waste of soaking liquid is avoided, a large amount of soaking liquid is prevented from being attached to the surface of the bamboo-woven artware, and the air-drying speed of the bamboo-woven artware is low.

The invention discloses high-strength and high-toughness waterborne antifouling metal baking paint and a preparation method thereof, and discloses an epoxy-hyperbranched organic silicon modified acrylic acid polyurethane resin and preparation method thereof. The high-strength and high-toughness waterborne antifouling metal baking paint comprises the epoxy-hyperbranched organic silicon modified acrylic acid polyurethane resin, polyester resin, saturated polyester polyols, cross-linking agents, adhesion promoters, wetting leveling agents, ethylene glycol tert-butyl ether, neutralizers, catalysts, flash rust inhibitors, defoaming agents and the balance water. The invention further discloses a preparation method of the high-strength and high-toughness waterborne antifouling metal baking paint.The waterborne antifouling metal baking paint has the advantages that the paint is high in hardness and toughness, resistant to water, chemistry, oil, abrasion, weather and salt fog and the like. Thepaint film performance of the waterborne metal baking paint is greatly improved, and use range is greatly widened.

The invention relates to the technical field of high polymer materials and particularly discloses to a preparation method of slow-drying waterborne acrylic resin. The preparation method comprises thesteps that a reactor filled with an emulsifier and inorganic salt is heated up to 40-50 DEG C, pre-emulsion composed of an acrylate hard monomer, an acrylate soft monomer and a cross-linking agent isadded, after even dispersing, the temperature is increased to 80-82 DEG C for a constant-temperature reaction, after the reaction is completed, the temperature is decreased to 40 DEG C, pH is adjusted, and filtering is conducted to obtain the slow-drying waterborne acrylic resin. The defects of the prior art are overcome, a production formula and a production method of the waterborne acrylic resinare optimized, the drying speed of the acrylic resin is decreased, and the performance of the acrylic resin is improved.