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89results about How to "Increase the amount of coating" patented technology

Ultraviolet light curing transparent priming paint and preparation method and use method thereof

The invention discloses an ultraviolet light curing transparent priming paint and a preparation method and a use method thereof. The ultraviolet light curing transparent priming paint comprises the following components in percentage by weight: 20-30% of bisphenol A epoxy acrylate resin, 15-25% of polyester acrylate, 1-10% of urethane acrylate, 5-10% of reagent type hydroxyethyl acrylate, 10-20% of tripropylene glycol diacrylate, 12-25% of trimethylolpropane triacrylate, 4-6% of photoinitiator, 10-25% of filling powder and 0.4-0.8% of promotor. The ultraviolet light curing transparent priming paint is suitable for laser roller construction, has good grittiness and transparency, has the characteristics that sanding is not needed for semi-curing recoating between film layers and the like, and has thick coating performance and the performance that the surface is similar to a mirror surface, and compared with conventional roller coating, the coating weight is greatly increased, roller coating processes are saved, the priming paint is sanded by a sanding machine without large pressure and with a small number of sanded films, a workpiece has no bright spots, the fullness of a product is guaranteed, the product quality is improved, the loss of the machine is smallreduced, and the use amount of sanding belts is greatly reduced.
Owner:SHENZHEN GRANDLAND ENVIRONMENTAL COATING CO LTD

Hollow glass bead/titanium dioxide membrane composite material and preparation method thereof

The invention provides a hollow glass bead/titanium dioxide membrane composite material and a preparation method thereof. The composite material is of a core-shell structure; and the thickness of a titanium dioxide membrane is 0.3-0.7 microns, the titanium dioxide exists in an anatase type, and the coating quantity is 5-25 percent. The method comprises the following steps of mixing and dissolvingabsolute ethyl alcohol, tetrabutyl titanate and glacial acetic acid, and then dropwise adding a mixed aqueous solution obtained by mixing the absolute ethyl alcohol, water and a pH regulator in a tetrabutyl titanate solution to prepare a titanium dioxide sol; performing ultrasonic cleaning on a hollow glass bead to remove impurities on the surface and perform alkali activation on the surface; andadding the activated hollow glass bead in the titanium dioxide sol, and performing standing and ageing to realize uniformity and compactness of coating of the surface of the hollow glass bead. The hollow glass bead/titanium dioxide membrane composite material and the preparation method solve the problems of low coating ratio of titanium dioxide, unevenness and looseness in a coating layer, low near-infrared band reflectivity and the like.
Owner:CENT SOUTH UNIV

Device and method for producing tobacco sheets

The invention provides a device and method for producing tobacco sheets. The production method of the tobacco sheets includes: tobacco raw materials are extracted in an extraction tank to be separated, insoluble substances are pulped and placed on a screen to be made into sheet bases, and obtained extract liquor is filtered through a filter screen and concentrated to obtain coating liquid; a part of coating liquid is foamed by using a foam generator to obtain foam coating liquid, the foam coating liquid is coated on the sheet bases by using a foam spraying process, and the other part of coating liquid is used for coating the sheet bases sprayed by foams again by using a mist spraying process to obtain wet sheet bases coated twice; sound wave or ultrasonic wave processing is performed on the wet sheet bases coated twice, vibration defoaming is performed on small foams to accelerate seepage of the coating liquid, and the coating liquid coated on the surfaces of the wet sheet bases is prevented from transferring to a nylon mesh belt; and the processed wet sheet bases are dried, and finished products of the tobacco sheets are manufactured after slitting of the sheet bases. The tobacco sheets manufactured by the method are large in coating quantity, high in coating evenness and good in air permeability.
Owner:CHINA HAISUM ENG

Graphene/ceramic composite microparticles used for spray molding and preparation method of composite microparticles

The invention discloses graphene/ceramic composite microparticles used for spray molding and a preparation method of the composite microparticles. The graphene/ceramic composite microparticles are composed of ceramic microparticles, water-based polyurethane resin, graphene, and alcohol-soluble resin, the ceramic microparticles are used as core particles, and a water-based polyurethane resin layer,a graphene layer and an alcohol-soluble resin layer sequentially cover the core particles, wherein the thickness of the water-based polyurethane resin layer is 5-15 [mu]m, the thickness of the graphene layer is 0.15-0.75 [mu]m, and the thickness of the alcohol-soluble resin layer is 5-20 [mu]m. The preparation process of the composite microparticles includes the steps of ceramic microparticle pretreatment, low-temperature plasma treatment, graphene coating, and boiling spray coating drying. The graphene/ceramic composite microparticles provided by the invention have a consistent size and goodfluidity, and can be used for spray molding to control the dispersion range and dispersion effect of the graphene in a substrate; and the preparation method provided by the invention has the advantages of low costs, a simple and effective process and no pollution.
Owner:CHINA THREE GORGES UNIV

Special thermosensitive paper for ink jet

The invention relates to a special thermosensitive paper for ink jet. The special thermosensitive paper sequentially comprises a base paper layer, a prime coat layer, a temperature-resistant chromogenic layer, a protection layer and an absorption layer from bottom to top, wherein the prime coat layer, the temperature-resistant chromogenic layer, the protection layer and the absorption layer are respectively coated with different coating liquids. According to the present invention, the ink absorption speed of the special thermosensitive paper coating having the protection layer can be improved;the absorption layer is coated on the protection layer to achieve the rapid drying purpose, such that the problem of paper surface pollution or unclear pattern caused by difficult drying can be solved; the influence on the thermal insulation of the printing can be solved by additionally arranging the absorption layer; the prime coat layer uses a sufficient amount of the hollow spheres, and the coating amount is increased, such that the heat insulation effect can be improved; with the chromogenic layer, the chromogenesis cannot be affected by the drying temperature when the prefabricated bar code is dried; the protection layer does not require the adding of the organic filler so as to improve the heat transfer effect; and the absorption layer uses the inorganic filler with advantages of strong absorption and good heat transfer performance so as to easily transfer the heat.
Owner:JIANGSU WANBAO RUIDA HI TECH CO LTD
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