134results about How to "Improve quick-drying performance" patented technology

The invention discloses a preparation method of a one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient. The method comprises the following steps that hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, a spinning solution A1 is obtained, and a hydrophilic nano-fiber membrane is deposited on a receiving base material through an electrostatic spinning method; hydrophilic nano materials are dispersed in solvent, the nano materials are dispersed uniformly through the ultrasound, a hydrophilic polymer is dissolved in the dispersing agent, and a spinning solution A2 is obtained; a hydrophobic polymer is dissolved in solvent, and a spinning solution B1 is obtained; the two spinning solutions are deposited on the hydrophilic nano-fiber membrane to form at least one diversion layer through the electrostatic spinning method; a hydrophobic polymer is dissolved in solvent, a spinning solution B2 is obtained, a hydrophobic nano-fiber membrane is deposited on the diversion layers through the electrostatic spinning method, and the one-way wet conduction nano-fiber multilayer composite membrane with the wettability gradient is obtained.

The invention discloses a modified polyester fiber prepared by carrying out blended spinning on functional copolyester master-batches containing moisture-absorbing radicals and inorganic nano-powder and conventional polyester chips, the section of the fiber is special-shaped and comprises micropores, the side surface of the fiber comprises a structure of longitudinal grooves and micro-pits, and a variety of fabric can be prepared by carrying out the blended spinning on the modified polyester fiber and natural fiber according to weight proportion. The fabric has the excellent functions of wetting by sweat, moisture transmitting and quick drying, thereby greatly improving the wearing comfort of the polyester fiber fabric.

The invention discloses conductive graphite cream and a preparation method thereof, which solve the technical problem of improving dispersibility of graphite cream. The conductive graphite cream comprises materials including, in weight percent, 10-30% of conductive graphite, 1-30% of matrix resin, 0.1-5% of conductive polymer auxiliaries, 0.1-5% of dispersing auxiliaries and the balance solvents. The preparation method includes the steps: adding the conductive polymer auxiliaries into the solvents to obtain solution 1; adding the matrix resin into the solvents to obtain solution 2; adding the conductive graphite into the solution 2; adding the dispersing auxiliaries into the solution 2 for ball-milling; adding the solution 1 into solution 3; and performing ultrasonic oscillation, high-pressure dispersion and stirring to obtain the conductive graphite cream. Compared with the prior art, the conductive graphite cream and the preparation method have the advantages that nano carbon materials are added, ball-milling, ultrasonic oscillation and high-pressure dispersion are performed for assisting so that the conductive graphite cream is uniformly dispersed, and the preparation method is simple and low-cost.

The invention relates to the technical field of advertisement display boards, in particular to outdoor energy-saving advertising equipment. The equipment comprises an advertising board, a sweeping device, a mounting base, a dust sensor and a controller; the mounting base is of a box structure and comprises an upper box body and a lower box body, a partition plate is arranged between the upper box body and the lower box body, the advertising board is arranged on the mounting base, a rainwater collecting box, a solar electromagnetic board and a wind-driven generator are arranged on the top of the advertising board, the power output ends of the solar electromagnetic board and the wind-driven generator are connected with a storage battery which is arranged inside the upper box body and supplies electricity for the whole equipment, a drain hole is formed in the bottom of the rainwater collecting box, a water diversion pipe is connected to the drain hole, the lower end of the water diversion pipe penetrates through the partition plate and leads to the lower box body, a water level sensor is arranged inside the lower box body, and a valve is arranged on the water diversion pipe. By means of the outdoor energy-saving advertising equipment, the problem that due to the fact that nobody cleans a traditional advertising board for a long time, the advertisement display effect is affected can be solved, and the function of automatically cleaning the advertising board is achieved.

The invention relates to a water soluble anti-rust agent on the surface of ferrous metal, which comprises the following components: 2 to 10 weight percent of barium petroleum sulfonate and/or barium dinonyl decyl sulfonate, 1 to 6 weight percent of sodium molybdate and/or amine molybdate, 0 to 10 weight percent of sebacic acid, 2 to 10 weight percent of polyacrylic ester, 3 to 20 weight percent of triethanolamine oleic soap and/or 2 to 6 weight percent of polyoxyethylenesorbitan monooleate, 0 to 15 weight percent of sodium alkylsulfonate, 0 to 8 weight percent of glycerin and the balance of water or machine oil. Compared with the conventional water soluble anti-rust agent, the water soluble anti-rust agent of the invention has the advantages of short film forming time, firm film forming adsorption and good anti-rust effect; the actual anti-rust period can reach 3 to 6 months; the formed film is thin and only 3 to 5 microns; common workpieces do not need film removal and can be directly assembled and coated; the film removal is convenient, and the film is only soaked and rinsed in mild water over 50DEG C and then can be removed quickly; and the anti-rust agent has no component containing toxic and harmful substances, does not contain phosphorus, has the advantages of good environmental protection and no pollution to the environment, and is the environment-friendly water soluble anti-rust agent.

The invention discloses a preparation method for isomeric alcohol polyoxypropylene polyoxyethylene ether. The preparation method comprises the following steps: (1) with isomeric alcohol as a starting agent and an alkaline earth metal compound as a catalyst, adding epoxypropane and carrying out a condensation reaction; and (2) then adding oxirane and carrying out a condensation reaction so as to prepare the isomeric alcohol polyoxypropylene polyoxyethylene ether. Thus, the isomeric alcohol polyoxypropylene polyoxyethylene ether prepared by using the method provided by the invention has the characteristics of low foam, low temperature thin fluidity, strong wetting performance, good permeation performance, etc.

The invention provides a monocomponent polyurethane coating, and relates to the field of coating. The monocomponent polyurethane coating comprises, by weight, the following components of 20 to 40 parts of diisocyanate, 40 to 65 parts of polyether, 50 to 75 parts of chlorcosane, 35 to 60 parts of chlorcosane, 20 to 50 parts of xylene, 15 to 25 parts of butyl acetate, 50 to 90 parts of padding, 10 to 20 parts of curing agent and 40 to 80 parts of catalyst. The acid value of the chlorcosane is smaller than 12 mg KOH/g, and the curing agent is a mixture of acetone-ethidene diamine condensation compound and methyl isobutyl ketone-ethanol amine condensation compound. The provided monocomponent polyurethane coating has the advantages that the curing speed is high, blistering in the crosslinking process and the storage process can be avoided effectively, and the practicability is high. The invention further provides a preparation method for the monocomponent polyurethane coating.

The invention provides water-borne acrylic-modified alkyd resin emulsion which comprises the following components in percentage by weight: 15-25% of polyester modified alkyd resin, 10-20% of a glycol ether solvent, 5-20% of a propylene glycol ether solvent, 0-5% of n-butanol, 5-8% of vinyl monomer, 15-25% of acrylic monomer, 2-6% of BPO, 4-7% of organic amine and 21% of deionized water, wherein the polyester modified alkyd resin comprises the following components: 12-20% of rosin, 22-30% of unsaturated fatty acid, 25-35% of polyester, 3-8% of diethylene glycol, 1-5% of pentaerythritol, 7-12% of maleic anhydride, 3-10% of xylene, 0.5-2.5% of sodium hydrogen sulfite and 10% of a glycol ether solvent and a propylene glycol ether solvent. Compared with the prior art, the water-borne acrylic-modified alkyd resin emulsion has the benefits of higher environment friendliness and better water solubility.

The invention relates to water-based polyurethane modified acrylic ester emulsion and a preparation method thereof, and water-based wood coating. The water-based polyurethane modified acrylic ester emulsion is prepared from the following raw materials in percentage by weight: 6 to 20 percent of a polyol polymer, 4 to 20 percent of isocyanate, 0.1 to 3 percent of a micromolecular chain extender, 0.5 to 4 percent of a hydrophilic chain extender, 0.1 to 1.5 percent of an after chain extender, 0.5 to 3 percent of a hydroxy acrylic acid monomer, 10 to 30 percent of an acrylic acid monomer, 0.05 to0.5 percent of an initiator, 0.5 to 3 percent of an epoxy organosilicon monomer, 0.1 to 4 percent of an organic crosslinking agent, 0 to 4 percent of a metal crosslinking agent, 0.5 to 2 percent of alkali and the balance of water. The emulsion has high stability; and after the emulsion is prepared into the water-based wood coating and the wood product is coated with the coating, the drying speed is high and the adhesion resistance is excellent.

The invention discloses a solvent-free composite PET/PE (Polyethylene Terephthalate/Polyethylene) film and a preparation process thereof. The solvent-free composite PET/PE film comprises an outer layer, a bonding layer and a base layer, wherein one side of the bonding layer is bonded with the outer layer, and the other side of the bonding layer is bonded with the base layer; the outer layer is prepared from PET resin; the base layer is prepared from PE resin; the bonding layer is prepared from a solvent-free bonding agent; the solvent-free bonding agent is compounded by a component A and a component B; the component A comprises cashew nut shell oil modified phenolic resin, an ethylene-vinyl acetate copolymer and oxetane; the component B comprises aliphatic amine; the preparation process comprises the following steps: coating a base layer film with the solvent-free bonding agent to obtain the bonding layer; compounding an outer layer film with the bonding layer; curing an obtained composite film semi-finished product to obtain the solvent-free composite PET/PE film. The solvent-free composite PET/PE film prepared by the process provided by the invention has the advantages of thin thickness, high transparency, high peeling strength and good packaging effect.

The invention relates to single-component high-adhesion quick-drying repair putty which is filling and leveling-up repair putty for defects and damages on surfaces such as various metals and woodware. The single-component high-adhesion quick-drying repair putty comprises the following components: nitrocellulose, toughened resin, adhesion promoting resins, a thixotropic agent, filler, pigment, a plasticizer and a solvent. The single-component high-adhesion quick-drying repair putty disclosed by the invention has the characteristic that mixing is not needed, the repair putty is convenient to use, scraping performance and quick-drying performances are good, and the toughness is good due to the addition of the toughened resin, for example alkyd resin. On adhesion, various adhesion promoting resins are added to bring a synergetic effect of the various adhesion promoting resins into play, so that the adhesion of the single-component putty is greatly strengthened. Meanwhile, the solvent adopts low-smell and low-toxicity propylene glycol monomethyl ether as the solvent, and therefore, the single-component high-adhesion quick-drying repair putty is relatively environment-friendly in comparison with the conventional nitrocellulose putty. The putty disclosed by the invention is used for filling up small scratches for performing small repair, and also can be used for large-area quick repairing.

The invention relates to stripe-shaped aluminum pigment for printing ink and a preparation method thereof and belongs to the field of chemical engineering. The stripe-shaped aluminum pigment is prepared from the following ingredients by weight: 85 parts of aluminum, 15 parts of carrier and 0.5 to 3 parts of aid. A forming technology is mainly achieved through a twin-screw extruder; the solid content of a final product is improved by a vacuum dry static roasting mode after extrusion and formation, so that the aluminum pigment is achieved; the aluminum pigment has very good dispersion in commonorganic solvents of fat removing hydrocarbon solvents and also has very good compatibility in common printing ink resin systems; compared with ordinary silver paste, the aluminum pigment has the advantages of better dispersion, quick dryness and excellent adhesive force.

The invention discloses a preparation method of a double-layer one-way moisture-conducting micro-nano fiber membrane based on a near-field direct writing and solution electrospinning technology. The preparation method comprises the following steps of (1) preparing a layer of disordered hydrophilic micro-nano fiber membrane A through a solution electrospinning method; and (2) carrying out melt spinning by using melt direct writing equipment, and preparing an inner-layer hydrophobic micro-nano fiber membrane B on the hydrophilic micro-nano fiber membrane A. On the basis of solution electrostatic spinning, melt direct-writing spinning is added, so that accurate control over the pore size of the fiber membranes is facilitated, the topological structures of the fiber membranes can be constructed by printing preset grid patterns, then the requirement for permeation of liquid drops with different diameters is met, and the moisture absorption efficiency is improved. The micro-nanofiber membrane with an excellent one-way moisture guiding function can be prepared by combining the solution electrostatic spinning and the melt direct-writing spinning, the moisture absorption rate is adjusted, and the one-way moisture guiding performance of the micro-nano fiber membrane is further improved. The composite fiber membrane has a huge application prospect in the aspects of sportswear, paper diapers and medical dressings.

An air dryer includes a dryer body, a wind-collecting nozzle mounted in front of the dryer body. The wind-collecting nozzle includes a wind-collecting nozzle body communicated with the dryer body, and has a plurality of air openings spacedly formed thereon. Two blowing pieces are supported by the wind-collecting nozzle body, wherein each of the blowing pieces has a blowing outlet. Moreover, a plurality of connecting rims is mounted between the blowing pieces and the wind-collecting nozzle body at the air openings respectively for rotatably connecting the blowing pieces with the wind-collecting nozzle body, so that the air dryer is capable of delivering air at a predetermined orientation through the air openings and the blowing outlets.

The invention discloses an environment-friendly waterborne ink and a preparation process thereof. The ink is prepared from, by weight, 60-70 parts of an epoxy-modified acrylic resin, 3-5 parts of an antibacterial agent, 1-3 parts of long oil alkyd resin, 1-3 parts of an antioxidant, 1-2 parts of sodium dodecyl sulfate, 5-10 parts of waterborne organic pigment, 0.5-1 part of an anti-foaming agent,0.5-1 part of a waterborne leveling agent, 0.5-1 part of a waterborne wax emulsion, 0.5-1 part of ammonia water, 90-100 parts of deionized water and 30-40 parts of ethyl alcohol. The prepared environment-friendly waterborne ink has the obvious prominent characteristics in the aspects of coloring power, ultraviolet reflectivity, adhesion and the antibacterial property, by means of the spraying androlling process, the adhesion of the ink is higher, and the pollution is less than that of a conventional method of only spraying the ink.

The invention provides moisture-absorbing quick-drying fabric and a preparation method thereof. The fabric comprises a hydrophilic inner layer and a quick-drying outer layer, wherein the hydrophilic inner layer is composed of bottom yarn, the quick-drying outer layer is composed of surface yarn, the bottom yarn is combed cotton yarn or twisted yarn of the combed cotton yarn and polyester filamentyarn, the surface yarn is special-shaped superfine denier polyester filament yarn, and the D value and the F value in specification of the bottom yarn are both larger than those in specification of the surface yarn. The preparation method of the fabric comprises the steps that the bottom yarn and the surface yarn are woven into gray fabric, and then after-treatment is carried out on the fabric toobtain the moisture-absorbing and quick-drying fabric; wherein the fabric after-treatment comprises alkali treatment and softening treatment; alkali treatment conditions are as follows: a 1wt.%-2wt.%sodium hydroxide solution is adopted, the bath ratio is 1:50, and the treatment is carried out at 90-100 DEG C for 30-40 minutes; softening treatment conditions are as follows: a silicon-free softening finishing agent is adopted, dipping is performed for 20-30 min at the temperature of 20-30 DEG C, then drying is performed for 3-4 min at the temperature of 100 DEG C, and finally baking is performed for 1-2 min at the temperature of 170-180 DEG C. The fabric has excellent moisture-absorbing and quick-drying properties and good durability.

The invention relates to a printing plate-making technology, and particularly relates to a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry. The technical problem to be solved is to provide a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry, which is good in waterproof effect, fast in speed and clear in screen points. The invention provides a transparent film for waterproof inkjet printing plate-making for the printing plate-making industry. The film is provided with a single coating; and the emulsion of the coating comprises polyvinyl alcohol having a main material polymerization degree of 6000-8000 and an alcoholysis degree of 78%, and a nano-scale granulated silica dispersion having a mass concentration of 40%. The product disclosed by the invention is fast in speed in an application process, clear in screen points, reliable in performance, and quite remarkable in effect. The product disclosed by the invention is reasonable in formula, efficient and environment-friendly, capable of filling in the domestic blanks, capable of being widely applied to the advertising industry and the printing plate-making industry, simple in process, and convenient to operate.