84results about How to "Improve other properties" patented technology

A method is provided for forming aseptic or substantially aseptic concentrated dairy liquid, such as dairy milk, without significant heat treatment. In one form, the method first concentrates a starting dairy milk to about 2× to about 7× concentration using an ultrafiltration membrane to form a dairy concentrate. Thereafter, the dairy concentrate is filtered using a microfiltration membrane to provide the aseptic or substantially aseptic concentrated dairy milk. The resultant concentrated dairy milk has less than about 0.5 percent total bacteria and less than about 5 colony forming units of spore forming bacteria per gram. The substantially aseptic concentrated dairy milk is not subjected to significant heat treatment during processing.

The invention relates to a bisphenol A bisphthalonitrile resin containing an arylethernitrile chain segment, a cured resin and a preparation method thereof, belonging to the field of high polymer materials. The preparation method comprises the following steps: performing nucleophilic substitution reaction on bisphenol A and 2,6-dichlorobenzonitrile used as raw materials in a strongly polar solvent/methylbenzene mixed solution in the presence of anhydrous potassium carbonate or anhydrous sodium carbonate used as a catalyst, thus forming a hydroxyl-terminated bisphenol A low polymer intermediate; then, substituting hydroxyl therein with 4-nitrophthalonitrile, thus obtaining the target resin; and adding curing crosslinking agent of which the mass is equivalent to 5% of that of the resin into the resin, precuring at 220-240 DEG C, and performing heat treatment at a temperature not lower than 375 DEG C to obtain the cured resin. The bisphthalonitrile resin provided by the invention has different chain lengths, contains an arylethernitrile chain segment, and has a low melting point and a wide curing processing temperature; the cured resin is in a network structure comprising phthalocyanine rings and triazine rings, and has excellent heat stability; and the provided preparation method of the resin and the cured resin is simple and controllable, and is suitable for industrial production.

The invention provides a fiber composite material high-pressure hydrogen storage cylinder and a preparation method thereof. The preparation method comprises the steps that S100, a cylinder inner container is provided, and the cylinder inner container comprises an inner container body and a cylinder opening; S200, fiber yarns are adopted to conduct two-dimensional multi-spindle weaving on the outer surface of the cylinder inner container, so that a composite material weaving layer comprising multiple layers of fiber two-dimensional fabric is formed, the weaving angle of the fiber two-dimensional fabric at the position of the inner container body is 56-67 degrees, and the weaving angle of the fiber two-dimensional fabric at the position of the cylinder opening is 15-55 degrees; S300, in the composite material weaving layer, a sewing thread in the axis direction of the cylinder is additionally arranged between every 3-5 layers of adjacent fiber two-dimensional fabric for fixing, and a woven preformed body is obtained; and S400, resin is adopted to cure the woven preformed body through a vacuum bag vacuum resin infusion method, and the fiber composite material high-pressure hydrogen storage cylinder with the fiber composite material layer is obtained. The fiber composite material high-pressure hydrogen storage cylinder is light in weight, high in strength, resistant to fatigue, large in structural rigidity and good in high and low temperature impact resistance stability.

The invention discloses aziridine crosslinked and solidified acrylate resin two-component water-based automobile coating and a preparation method thereof. Water-dispersed acrylate resin used for preparing the two-component water-based coating is prepared by initiating polymerization by virtue of a free radial initiator in an organic cosolvent by a mixture of a monomer component A, a monomer component B and a monomer component C, and then an amine neutralizer is added for neutralization to form aqueous dispersion. The aziridine crosslinked acrylate resin two-component water-based automobile coating is formed by mixing water-dispersed acrylate resin, an aziridine crosslinking agent and other auxiliaries, a paint film formed after spraying and solidification has high gloss, high hardness, high impact resistance and excellent water resistance, interlayer bonding is tight, firm adhesion on a substrate is achieved, and operating requirements of automobile coating are met.

The invention discloses a cold-resistant plastic bucket and a preparation method thereof, and belongs to the technical field of a plastic packaging container. The cold-resistant plastic bucket is characterized in that the cold-resistant plastic bucket is prepared from the components in parts by weight: 60 to 80 parts of high-density polyethylene, 15 to 25 parts of linear low-density polyethylene,10 to 20 parts of maleic anhydride grafted high-density polyethylene, 5 to 7 parts of high-polymerization-degree polyvinyl chloride, 6 to 8 parts of ethylene-vinyl acetate copolymer, 0.5 to 1.0 part of ultraviolet absorption agent, 1 to 1.5 parts of antioxidant, 2 to 3 parts of plasticizer and 5 to 7 parts of silica power; the high-density polyethylene has a density of 0.936 g/cm<3> and a melt index of 1.4 g/10 min; the linear low-density polyethylene has a density of 0.920 g/cm<3> and a melt index of 1.0 g/10 min. The invention reaches the technical effect of enabling the polyethylene plasticbucket to also have excellent printing performance when having cold resistance.

The invention provides a fireproof building coating. A main body of the fireproof coating adopts combination of thermoplastic acrylic resin, hydroxy acrylic resin and organic silicon resin, and due to the combination of the resin, the coating not only has the good light and color preserving property and the water and chemical resistance property, but also is convenient to construct, high in drying speed and economical in energy. According to the fireproof building coating, mullite fibers and silica fibers which can resist high temperature are added, and therefore not only can the mechanical strength of a coating layer be significantly improved, but also the weather resistance and corrosion resistance of the coating layer can be improved. When a fire disaster occurs, through the synergistic effect of all the components in the formula, the fire retardant effect is good, and smoke formation is little.

The invention relates to a high-specific-heat-capacity substance based electric welding protective plus material and a preparation method thereof. The high-specific-heat-capacity substance based electric welding protective plus material is prepared from an inflaming-retarding textile, a high-water-absorption coating composition and a water-repellency finishing layer. The preparation method of theelectric welding protective plus material comprises the following steps of applying the high-water-absorption coating composition to the front surface of an inflaming-retarding plus material, next, oven-drying for 1 min to 10 min at 120 DEG C, and baking for 1 min to 5 min at 160 DEG C, wherein the high-water-absorption coating composition is prepared from oily polyurethane, a cross-linking agent,high-water-absorption resin, a dispersant and lignin powder and the like; locally or fully applying a water-repellency finishing agent to the back surface of the front surface coated inflaming-retarding textile obtained in the former step; and before use, spraying or atomizing liquid water with an application amount of 100 g/m<2> to 300 g/m<2> to the high-water-absorption coating on the front surface. Through the way, an electric welding spark in contact with the plus material can be quickly extinguished after the surface of the electric welding protective plus material provided by the invention absorbs water; the heat is absorbed or quickly moved away; thus, the heat reaching a skin is reduced; and the purpose of protecting the skin from being burned is achieved.

The invention discloses automotive PVC stone chip resistant paint and a preparation method and application thereof. The automotive PVC stone chip resistant paint comprises, by weight, 10-20% of polyvinyl chloride paste resin and 0.1-5% of thermal expansion microspheres. Weight of the stone chip resistant paint can be reduced by 50% and reaches about 5kg, so that automobile lightweight is realized.Bubbles formed by the expansion microspheres are of closed structures, hole channeling is avoided, and the bubbles are uniform in size and regular in distribution and have no impact on mechanical performance of a paint film like bad consequences such as low wear resistance, corrosion resistance reduction and proneness of moisture to going deeply and being retained. Compact structure of the expansion microspheres enables the expansion microspheres to be integrated with a high-resistance matrix to generate good protective effect, and other performances of the paint film can be improved.

The invention discloses a ceramic material. The ceramic material is prepared from the following raw materials in parts by weight: 42-85 parts of dry sludge, 32-48 parts of crop straw, 10-24 parts of limestone, 10-22 parts of dolomite, 10-16 parts of diatomite, 8-12 parts of ferric oxide, 6-10 parts of silicon dioxide, 6-12 parts of zirconium dioxide, 4-6 parts of broken aluminum blocks, 2-3 parts of glass fibers, 2-3 parts of a water reducing agent, 0.6-1.2 parts of a foaming agent, 0.4-1 part of a foaming regulator, 0.4-0.6 part of a catalyst, 0.4-0.6 part of a cross-linking agent, 0.2-0.4 part of a foam stabilizer, 30-40 parts of a hydrogen peroxide solution and 350-480 part of water. According to the ceramic material disclosed by the invention, the utilization field is opened up for sludge waste materials and the crop straw, the making cost of ceramics is effectively reduced, energy consumption is reduced, and waste is turned into wealth.

The invention relates to finishing liquid for a hot-galvanized plate and a preparation method for the finishing liquid. The finishing liquid comprises a component I and a component II, wherein the component I comprises following ingredients in parts by weight: 23-33 parts of water, 5-8 parts of dibasic acid, 8-12 parts of tricarboxylic acid and 54-57 parts of triethanolamine; the component II comprises following ingredients in parts by weight: 47-68 parts of water, 4-8 parts of sodium carbonate, 3-5 parts of potassium hydroxide, 2-4 parts of disodium ethylenediamine tetraacetate, 6-10 parts of sodium metasilicate pentahydrate, 8-12 parts of reverse block polyether, 6-8 parts of neodecanoic acid and 3-6 parts of sodium benzoate. The finishing liquid has relatively good rust-proof and lubricating effects, has excellent wetting and cleaning properties and relatively high cleaning ability, and can lubricate and repair the surface of a roll; the finished galvanized plate is smooth in surface, and defects of finishing spots and coating moire can be effectively eliminated or reduced; the finishing liquid has good foam-inhibiting and defoaming functions, so that liquid can be avoided from remaining on the surfaces of the roll and a steel plate and the foam can be avoided from overflowing around to affect the working environment.

The invention relates to a welding technology, discloses a pipe plate inner hole welding method for a small-aperture heat exchange pipe, and can effectively eliminate the welding defects that the outer surface of a joint is concave inwards and arc extinguishing pits are formed in the back surface of the joint. The inner hole diameter of the heat exchange pipe is 9-15 mm, and the wall thickness is1-2 mm. The method comprises the steps that the position of the tungsten pin of a welding gun head is adjusted according to a pipe plate boss with a groove so that when the welding gun is inserted andis in a to-be-welded state, the tungsten pin is located on one side of the pipe plate boss and the distance between the tungsten pin and the to-be-welded end face of the pipe plate boss is within 0-0.5 mm; the heat exchange pipe and the pipe plate boss are coaxially assembled, and it is ensured that the gap between the to-be-welded end faces of the two assemblies is within 0-0.1 mm; any one of the positions of 3-5 o'clock and 7-9 o'clock is selected as an arcing point, and uphill welding is set after arcing; and the circumference to be welded is equally divided into 2N sections according to the selected arcing points, the current of each section is set according to the recommended process parameters and all-position inner hole welding is performed on the circumference to be welded.

The invention discloses a composite waterproof structure and a preparation method thereof, and belongs to the field of building waterproof materials. The composite waterproof structure is prepared from a waterproof coil layer, a reaction type macromolecular elastic coating layer and a waterproof base layer in turn from top to bottom, wherein the waterproof coil layer is prepared from an upper surface layer and a self-sticking material layer in turn from top to bottom; the self-sticking layer is self-sticking polymer modified asphalt. According to the composite waterproof structure and the preparation method thereof disclosed by the invention, separation between the coating and the coil is avoided, and the waterproof effect is perfect.

The invention discloses a weather-resistant wire and cable material. The material is characterized by being prepared from following raw materials in parts by weight: 70-80 parts of perfluorotriazine rubber, 15-25 parts of epichlorohydrin rubber, 20-30 parts of benzotriazole-1-carbothioic acid allyl amide/2,4-diamino-6-vinyl-S-triazine/titanium triisopropanol methacrylate/4-hydroxybutyl vinyl ethercopolymer, 5 to 10 parts of industrial solid waste, 5 to 10 parts of volcanic ash, 2 to 5 parts of epoxy asphalt, and 3 to 6 parts of a vulcanizing agent. The invention also discloses a production method of the weather-resistant wire and cable material. The weather-resistant wire and cable material is excellent in comprehensive performance, excellent in mechanical property, weather resistance andflame resistance, good in wear resistance, aging resistance and heat resistance, high in use safety and long in service life.

The invention discloses an unattended electronic invoice issuing system and device, and belongs to the technical field of electronic invoice application. The device is placed in a room and connected with a power supply, an information two-dimension code or a membership card is placed in a card reading area after consumption of a user for information identification, and after user information is received, the user information is automatically matched with and corresponds to database information; then, a main controller commands an invoice printing device to typeset the electronic invoices and print paper bills, and after the paper bills pass through a stamping device, stamped paper bills are obtained. The system and device have good social benefits and economic benefits.

The invention provides a plastic veneer type thermoplastic acrylic environment-friendly fireproof paint and a method for preparing and using same. The environment-friendly fireproof paint is prepared by using thermoplastic acrylic resin as the primary material with halogen-free synergistic flame retardant ammonium polyphosphate (APP)- pentaerythritol (PER)- melamine(MA), adding a little coupling agent, dispersing auxiliary, pigment and proper solvent under a proper process. The environment-friendly fireproof paint can be used for coating plastic enclosures such as HIPS (High Impact Polystyrene), PS (Polystyrene), ABS (Acrylonitrile Butadiene Styrene), PMMA (Polymethyl Methacrylate), and can form a paint film with excellent fireproof effects after proper constructing and drying, so that fireproof and decoration purposes are achieved. The paint has the characteristics of a thermoplastic acrylic resin paint such as safety and environment protection, easy construction and re-construction, excellent adhesion, strong colour retention decoration, good waterproof performance, good chemical resistance and the like, thus, the fireproof level can reach UL94V-0 level; moreover, the paint is free of halogen and heavy metal, and the smoke quantity in a combustion process is very low, thus, the paint is an environment-friendly fireproof paint with high performances and high efficiency .

The invention discloses a self-cleaning cement-based composite material and a production method thereof, and the production method comprises the following steps: aramid fibers containing 18-38% wt of inorganic basalt fibers, glass fibers and ceramic fibers, fibers, aramid fibers, a photocatalytic material, nylon fibers, vinylon fibers are input in a fiber twisting machine for being knitted to 64 fiber threads; the obtained fiber lines can be input into a fiber cloth knitting machine to be knitted into net-shaped fiber cloth with the mesh being 1 m*1 m and the breadth being 2.00 m; a large amount of CO2 can be sucked in the curing process of fresh concrete, calcium silicate and a small amount of hydration products in cement clinker react with CO2 to generate calcium carbonate and silica gel, high early strength can be obtained, the concrete curing time is greatly shortened, good size stability and other performance are achieved, the process of emission reduction is achieved by introducing tailings as a modifying component, the nano-modified concrete component can continuously absorb carbon dioxide in the atmosphere, and meanwhile, the overall mechanical property and durability of the building material can be improved.