347results about How to "No foaming" patented technology

The invention relates to a method for producing color-coated steel sheet for a structure. The method comprises the following steps of: smelting, namely desulfurizing by molten iron, smelting by a converter, casting continuously to form a blank and performing hot rolling; performing acid washing; performing cold milling; annealing continuously; performing hot dipping on aluminum and zinc; and polishing, straightening, performing color coating and packaging for later use. In the method, the yield strength RP 0.2 (or ReH) is between 550 and 600 MPa; the tensile strength Rm is between 560 and 610MPa; and the percentage elongation after break A80 mm is more than or equal to 6 percent. A neutral salt mist test is performed for 1,200 hours, a coating does not have bubbling and corrosion phenomena. At present, the annealed color-coated plate of which the metallographic structure is ferrite and pearlite or the ferrite and free cementite or the ferrite and the pearlite and less free cementite cannot achieve the effect, and the production cost can be reduced by 10 to 15 percent. By the method, special occasions which have high-yield strength and are used for cooling chambers of automobiles,arch coverings and the like can be met, and a process is simple and easy to implement.

A inorganic dry powder paint with good mass sensation is prepared proportionally from cement, color sand, re-dispersed emulsoid powder, hydrophobic agent, inorganic pigment and filler. Its advantages are high adhesion to concrete, high weatherability, good air permeability, and no pollution. Its application method is also disclosed.

The invention relates to a gold-plating method of a high silicon-aluminum composite material. According to a second zinc immersion treatment method of conventional aluminum alloy electroplating, pre-treatment of the method comprises the following six steps: cleaning and oil removing; alkaline etching; bright dipping; primary zinc immersion; zinc annealing; secondary zinc immersion. The gold-plating method subsequently comprises the following steps: I, preplating chemical nickel in a chemical nickel-plating liquid; II, plating nickel for the first time according to a conventional nickel-plating method, wherein the nickel layer is 2-3 microns thick; III, performing aging treatment; IV, performing activating treatment; V, plating nickel for the second time according to a conventional nickel-plating method, wherein the nickel layer is 2-3 microns thick; VI, taking a pure gold plate or a platinum titanium mesh as an anode and the high silicon-aluminum composite material as a cathode according to a conventional pure gold-plating method, wherein the gold layer is 2-3 microns thick; VII, detecting the binding force of the plating layer. The plating layer observed under tenfold amplifying glass is free from peeling and bubbling phenomena and good in binding force. The binding force of the gold-plating plating layer and a high silicon-aluminum base material adopted by the method provided by the invention is firm and reaches the standard of appendix A of GJB1420 General Specification of Semiconductor Integrated Circuit Shell.

The invention discloses a non-yellowing capacitor coating at a high temperature having deep drawing resistance performance and a preparation method thereof. The capacitor coating in the invention is prepared from the materials according to the following parts by weight: 20 to 50 parts of hyperbranched polyester resin, 1 to 7 parts of saturated polyester resin, 3 to 12 parts of isocyanate, 0 to 0.5 parts of adhesion promoter, 0 to 0.15 parts of slipping wax, 0 to 0.3 parts of organic tin catalyst, 2.0 to 6.0 parts of resin modifier, 0.07 to 1.0 parts of defoamer, 0.15 to 0.20 parts of flatting agent, and 30 to 62 parts of solvents. The hyperbranched polyester resin, saturated polyester resin and isocyanate are put into a container so as to prepare a mixture after high-speed dispersing; the rest of the materials are then put into the mixture so as to mix homogeneously by medium-speed dispersing, thereby obtaining the non-yellowing capacitor coating at a high temperature having deep drawing resistance performance. The capacitor in the invention has the characteristics of deep drawing resistance, good percentage elongation of coating film and no yellowing at a high temperature.

The invention discloses thermoplastic elastomer composition and resin as well as a preparation method and an application of the thermoplastic elastomer composition and resin in manufacturing of runways and courts. The thermoplastic elastomer composition is prepared from, in percentage by mass, 20%-40% of SEBS (styrene-ethylene-butylene-styrene) resin, 20%-50% of white oil, 10%-30% of polypropylene, 10%-30% of filler, 0.2%-1% of a lubricant, 0.3%-0.6% of an anti-oxidant auxiliary, 0.2%-0.4% of an anti-aging auxiliary, 0.05%-0.2% of a crosslinking agent and 0.2%-2% of a wear-resistant auxiliary, wherein the mass percentages of all the components add up to 100%. The thermoplastic elastomer resin is prepared from the thermoplastic elastomer composition. The thermoplastic elastomer composition and resin are used for preparing outdoor runways and courts and can improve the wear resistance and the weather resistance of outdoor sport fields such as the runways, the courts and the like in the use process.

The invention discloses a low-cost high-strength prepainted steel sheet and a manufacture method thereof. The low-cost high-strength prepainted steel sheet comprises the following base materials containing chemical components in percent by weight: 0.06-0.10 percent of C, not more than 0.05 percent of Si, 0.30-0.70 percent of Mn, 0.01-0.03 percent of P, not more than 0.02 percent of S, 0.01-0.07 percent of solAl, not more than 0.005 percent of N, not more than 0.08 percent of Cr, not more than 0.11 percent of Cu, not more than 0.06 percent of Ni and the balance of Fe and unavoidable impurities. The preparation method comprises the steps of: steel-making through molten iron, continuously casting, hot-rolling, acid-washing, hot dipping, alloying, finishing and prepainting. The prepainted steel sheet has the advantages of good stamping property, excellent corrosion prevention property, low production cost and better economic and social benefits, and can be widely applied to the outdoor large building industry.

The invention relates to a method for machining an island superfine fiber high density pinprick non-woven fabrics artificial leather, which is applied to the artificial leather manufacture and comprises the following processes: (1) the foundation process; (2) the PU wet method dipping process; (3) the continuous alkali abatement fiber opening process; (4) the pigmentation, the flexible tentering and shaping, the peached finish on two sides by a roughing-up machine; (5) the post treatments such as the dry method facing. The method is characterized in that the following processes are performed between the (4) process and the (5) process which are as follows: (6) the rolling blanching at a high temperature of 80 to 120 DEG C; (7) the high concentration polyurethane DMF solution with a weight ratio of PU: DMF of 100:50-93 is coated on the single side of the fabrics; (8) the time delay of 30 to 80 seconds; (9) a low temperature of 10 to 15 DEG C high concentration of 15 to 25 percent of DMF solution coagulating basin is coagulated, washed by water, dried and wrapped up. The method has the advantages that the manufactured finished leather has even thickness, excellent anti-tear strength and good ventilation property, the shortcoming that the cross breaks of the fibril synthetic leather is concave is overcome; the single spreading effectively avoids the foaming phenomenon on the coating surface; the section color is constant, etc.

The invention discloses high weather resistance environment-friendly cable fire-refractory coating and a preparation process thereof, belonging to the technical field of coating. The process adopts a base material, namely acrylic ester elastic emulsion, as a main film-forming substance, dopes high polymerization degree ammonium polyphosphate into the base material, has good film-forming effect and water resistance. The method particularly selects Number 70 chlorcosane and diantimony trioxide as synergistic flame-retardant to greatly improve the fire retardant performance, has low proportion of pigment and the base material, optimizes compatibility of a fire retardant system; the coating has weather resistance and has oil resistance for selecting fluorocarbon surfactant. The process improves water resistance and weather resistance of the coating, and adopts titanate coupling agent to improve the combining firmness of the pigment, the base material and cable base materials, and the weather resistance of the coating is further improved. Green and environment-friendly water is used as solvent to reduce cost, and as the solvent is removed in preparation or construction, the coating does not pollute the environment and not hurt the health of operators.

The invention provides an antifouling coating which can be self-layered and solidified, has low surface energy and consists of component A and component B, wherein, according to the weight formula, the component A consists of 50-100 parts of epoxy resin, 0-50 parts of epoxy-capped esserbetol, 60-240 parts of polymethyl siloxane resin, 0-20 parts of pigment, and 0-70 parts of organic solvent; component B consists of 25-40 parts of amine curing agent, 2-16 parts of organic silicone cross-linking agent, 0-0.5 part of organic silicon-crosslinked catalyst and 0-5 parts of organic solvent. The coating uses a principle that the epoxy resin and the organic silicon resin are incompatible in each other, and can be automatically layered during the film-forming process; and the epoxy resin deposits at the bottom and the organic silicon resin is exposed on the external surface. The antifouling coating with low surface energy has the characteristics of excellent adhesion of epoxy resin and low surface energy of the organic silicon and has certain antifouling effect.

The invention relates to the technical field of protective coatings and particularly relates to an acrylic polyurethane silicofluoride coating. The coating is prepared from the following raw materials in percentage by weight: 50-70% of hydroxyl acrylic resin, 10-20% of solvent, 0.1-3% of fluorine-containing micropowder, 1-5% of pigments, 1-3% of high-hardness oxides, 2-5% of assistant and 10-20% of closed isocyanate curing agent. The acrylic polyurethane silicofluoride coating provided by the invention can be used for improving the protective capability to a steel structure and has good characteristics of ageing resistance, scratch resistance, corrosion resistance, discoloration resistance, pollution resistance and the like. Under the condition of being matched with other primers and intermediate coatings with excellent performances, the coating has an extremely good long-acting protective performance to the steel structure and the protective service life can reach 30 years.

The invention relates to PVC (Polyvinyl Chloride) stone-bumping resistant paint and a preparation method thereof. The PVC stone-bumping resistant paint is formed by mediating, reacting and finely rolling dioctyl phthalate, dibutyl phthalate, dioctyl sebacate, light calcium carbonate, heavy calcium carbonate, nano active calcium carbonate, zinc stearate, barium stearate, organic bentonite, polyamide resin, carbon black, titanium pigment and PVC resin. The low-temperature flexibility of the PVC stone-bumping resistant paint can be improved by compounding three plasticizers of the dioctyl phthalate, the dibutyl phthalate and the dioctyl sebacate; the thixotropic performance of the paint can be improved by combining the organic bentonite with the nano active calcium carbonate; the adhesive force and the high-temperature yellowing resistance of the paint can be enhanced by combining the polyamide resin with heat stabilizers of the zinc stearate and the barium stearate and the paint has no foaming, crack and falling after baked at 210DEG C, so that the coating effect of the automobile body can be improved and the service life of the automobile body can be prolonged. The PVC stone-bumping resistant paint has no lead salt heat stabilizers and avoids the damage to the environment and human body; and the produced PVC stone-bumping resistant paint has excellent performance and can carry out the multilayer anticorrosion protection of the body and the bottom of the automobile.

The invention relates to a method for preparing politef waste regenerate powder and relative rod. The inventive method comprises that 1, washing and removing foreign material, 2, breaking, grinding, screening, 3, sintering, 4, cutting bars, 5, preparing particles, 6, packing and storing. With inventive method, the politef regenerate powder can reach the property of original powder, to produce variable politef products. In addition, the powder can be thermally extruded into politef regenerate rod, with uniform mass and non foam condition.

The invention relates to a vinyl acetate-acrylate copolymer emulsion, which is prepared by adopting OP-10, SDBS, SVS, water, acrylic acid and a seed emulsion as the bottom water system, taking VAc, BA and AA as the monomer, employing ammonium persulfate as the oxidant, and using sodium bisulfite as the reducing agent. Specifically, the seed emulsion in the bottom water system is prepared by using SDBS, OP-10, AA, sodium carbonate and water as the base solution, adopting VAc, BA and AA as the monomer, employing SDBS, OP-10, sodium carbonate and water as the pre-emulsification system, taking ammonium persulfate as the oxidant, and adopting sodium bisulfite as the reducing agent. The emulsion provided in the invention has a solid content of 40%-45%, viscosity (in terms of a 4-cup application amount) of 20S-26S, bonding peel strength (N/2.5cm) of 1.4-2.5, a surface tension force of 32-37 dyne, and a film contact angle of 25-29 degrees, thus being particularly suitable for application in dry paper-plastic or plastic-plastic composite adhesives. The preparation method of the vinyl acetate-acrylate copolymer emulsion has the characteristics of mild reaction conditions and safety reaction system, thus being conducive to factory mass production.

The present invention relates to a compound polyurethane adhesive for high-temperature insulation materials and a preparation method thereof. The polyurethane adhesive contains a host agent and a solidified agent. The host agent contains aliphatic diacid, aliphatic diols, aromatic diacid, diisocyanate, organic solvents and mating agent. The solidified agent contains diisocyanate, polyhydric alcohol and organic solvents. The host agent and the solidifying agent are evenly mixed into glue according to the weight proportion of 100:15-20 and solidified for 4 hours at 100 DEG. The present invention has good compounding process performance and adhesion property on polyester film/p-aramid insulation paper and polyimide/p-aramid insulation paper.

The invention provides a middle coating paint for a polypropylene plastic, which consists of chlorinated polypropylene modified acrylic resin, modified chlorinated polypropylene, a curing agent, pigment, filler, a dispersing agent, an auxiliary and the like. The invention also provides a preparation method of the middle coating paint, which comprises the following steps of: mixing the chlorinated polypropylene modified acrylic resin with the auxiliary, putting the mixture into a sand mill and uniformly dispersing; and adding the modified chlorinated polypropylene and the curing agent, and uniformly mixing to obtain the paint. The middle coating paint provided by the invention has the advantages of low cost, simple preparation technology, wide application and great market potential; when in use, the paint can be coated through special treatment on substrates, the coated paint does not need roasting and can be naturally dried, the construction is convenient, and the energy is saved; and the obtained composite paint film is resistant to ethanol gasoline for 8 hours.

The invention provides a super-weather resistant alkali-activated-fly ash-slag bicomponent outer wall inorganic coating. In the coating, sodium water glass and water are selected as base materials, and pulverized fuel ash, high-aluminum cement, slag, titanium white powder, pigment, talcum powder, redispersable latex powder, hydroxyethylcellulose, a naphthalene-based water reducing agent and a powdery antifoaming agent are used as padding. By testing the washing resistance of the coating of the invention, a specimen is washed 25,000 times without bubbling or cracking or dropping; by testing the water resistance, the specimen is soaked for 4,320 hours without bubbling or cracking or dropping; by testing acid rain resistance, the specimen is soaked in a solution, of which the pH is equal to 3 and is adjusted every day to be maintained to be 3, for 960 hours without bubbling or cracking or dropping; by testing salt resistance and alkali resistance, the specimen is soaked in 0.2mol/L of KOH solution of 5 percent of NaCl for 960 hours without bubbling or cracking or dropping; by testing bonding strength, the specimen has the bonding strength of 1.14MPa; and by testing flexibility, the specimen is qualified by 100 percent by being inspected through a grid scoring method of 1mm.

An anticorrosive coating spraying process for a dry-screw compressor rotor belongs to a technical field of mechanical spraying process, which includes the following steps: first, pretreating the rotor parent material and stress relief annealing heat treating the rotor blank; then pretreating the spray anticorrosive coating and spraying polytetrafluoroethylene coating and at last sintering treating and detecting to be the rotor finished products. The inventive coating thickness is uniform and its colour is black. When the dry-screw compressor is in a normal state, the service life of the coating can reach more than 24000 hours.

The invention relates to fast-dry solvent type intermediate epoxy resin paint, which comprises a main agent and a curing agent, wherein the ratio of the main agent to the curing agent is between 20 to 1 and 5 (weight). Compared with the prior art, the intermediate epoxy resin paint has good drying property as well as simple and convenient coating operation, adapts to flow coating of the prior containers, can be thickly coated to the specified film thickness at one time, has good anticorrosion property, and has good binding force with a last-pass primer and a next-pass primer; and for thicker outer finish, particularly polyurethane finish, the intermediate epoxy resin paint has good usability, can not froth, and has good anticorrosion property.

The invention belongs to the field of health-care products, and particularly relates to a vitamin C sodium effervescence formulation and a preparation method thereof. The vitamin C sodium effervescence formulation provided by the invention comprises acidic components, alkaline components, a filling agent, a correctant, a lubricant, an adhesive and a disintegration auxiliary. The effervescence formulation is an effervescent tablet agent or effervescence solid particles, is good in stability and free from irritant to the stomach and the intestinal tracts, and can be effectively used as a supplementing agent of vitamin C. The invention further discloses the preparation method of the effervescence formulation. The preparation method is simple to operate. The prepared vitamin C sodium effervescence formulation is smooth, clean and level in appearance, free from bubbling phenomena, large in effervescence particle size and low in hygroscopicity.

The invention discloses a chlorinated polyethylene flame-retardant sheath material compound. The flame-retardant sheath material compound comprises compositions with the following weight portions: 100 portions of chlorinated polyethylene, 5 to 8 portions of rare earth complex stabilizer REC-LS, 25 to 30 portions of high-performance complex flame retardant HZR-2, 3 to 5 portions of thiadiazole derivative curing agent, and 1.5 to 2 portions of aldehyde-amine condensate accelerant. A cable obtained by the invention has more comprehensive performance, good mechanical property, ozone-resistant and chemical-resistant performance, flame resistance and oil resistance, high temperature-resistant class, and free color matching.

The invention discloses a method for preparing waterborne anticorrosion coating resin vinylidene chloride-acrylate. In the method, vinylidene chloride, acrylate and different compounded emulsifiers are pre-emulsified, and azodiisobutyronitrile is used for initiating polymerization reaction. The method comprises the following steps of: adding partial pre-emulsion into a reactor; heating to temperature higher than the initiation temperature of an initiator, adding the initiator, and performing polymerization reaction at constant temperature to obtain seeded emulsion; and dripping the rest pre-emulsion into the reactor and continuously performing the reaction at constant temperature. The emulsion has high stability, uniform particle size, high resin adhesion and high film and anticorrosion properties, is environment-friendly and nontoxic, and can provide good corrosion protection for carbon steel matrixes.