61results about How to "Excellent boiling water resistance" patented technology

The invention relates to an aqueous primer used for bicycles, which comprises the following components in percentage by weight: 25-45% of aqueous epoxy acrylate resin, 2-10% of curing agent resin, 1-3% of neutralizing agent dimethylethanolamine, 2-10% of compound anticorrosive pigment, 5-20% of tinting pigment and filler, 0.1-0.5% of antifoaming agent, 0.1-0.5% of flatting agent and 20-40% of deionized water, wherein the sum of the content of all components is 100%. The aqueous epoxy acrylate resin accounts for 10-40% of the total mass of epoxy resin; the curing agent resin comprises aqueous closed-type polyurethane curing agent resin and amino curing agent resin, wherein the mass ratio of the aqueous closed-type polyurethane curing agent resin to the amino curing agent resin is 1:5-5:1; the aqueous closed-type polyurethane curing agent resin is decapsulated and solidified at the temperature of 130DEG C; the amino curing agent resin is carbinol or butylated amino melamine formaldehyderesin; and the compound anticorrosive pigment comprises modified zinc phosphate, zinc oxide and ion exchange type anticorrosive pigment. The aqueous primer disclosed by the invention is especially suitable for preventing rust and corrosion of structures, such as bicycles and the like.

The invention provides a self-crosslinking water-borne wood paint emulsion and a synthetic method thereof, relating to the technical field of coatings. The self-crosslinking water-borne wood paint emulsion contains the following raw materials in percentage by weight: 25%-60% of an acrylic emulsion, 2%-6% of isophorone diisocyanate, 2%-7% of glyceryl triacetate, 10%-45% of acrylic monomers, 20%-50%of a waterborne polyurethane resin emulsion, 0.2%-2% of an emulsifying agent, 3%-6% of nano-crystalline cellulose, 0.2%-1.5% of a defoaming agent and the balance of deionized water. By taking the self-crosslinking acrylic emulsion as a main raw material and utilizing the self-crosslinking acrylic monomers, isophorone diisocyanate, the waterborne polyurethane resin emulsion, glyceryl triacetate and nano-crystalline cellulose and other raw materials, the prepared self-crosslinking water-borne wood paint emulsion has relatively high crosslinking density, the hardness, boiling water resistance, solvent resistance, light remaining property, color remaining property and impact resistance of a coating film are relatively excellent, and the content of volatile organic compounds is low, so that the environmental pollution is avoided, and the human healthy is guaranteed.

The invention discloses an environment-friendly flame-retardant straw board. The straw board is prepared from the following raw materials in parts by weight: 50 to 100 parts of straw particles, 10 to 200 parts of flame retardant agent, and 1 to 50 parts of binding agent, wherein the flame retardant agent is prepared from the following raw materials: magnesium oxide, magnesium chloride, magnesium sulfate, nano stibium oxide and ultra-fine micro-silica powder; the binding agent is inorganic binding agent and is prepared from the following raw materials: aluminum sol, water glass, polyvinyl alcohol and deionized water. According to the environment-friendly flame-retardant straw board, by combining with the inorganic flame retardant agent and the inorganic binding agent with excellent performance, straw is used as a main raw material, so that the obtained straw board is flame-retardant without being carbonized and deformed at a high temperature of 1200 DEG C or more, and the production of harmful fume and gas is avoided; moreover, heat conduction on the straw board is avoided under a high temperature condition, and the straw board is not swelled once encountering the water, and the comprehensive performance is very excellent.

The invention discloses a lignin modified urea-formaldehyde resin adhesive and a preparation method and application thereof. 1000 parts of formaldehyde, 45-140 parts of lignin, 8-28 parts of melamine,680-860 parts of urea, 10.5-51 parts of alkali and 10-20 parts of acid are used as raw materials, the lignin is added in two batches, the urea is added in three batches, and the lignin modified urea-formaldehyde resin adhesive is prepared by one-time addition reaction and three-time polycondensation reaction. The prepared adhesive has good initial adhesion, fast curing speed, high bonding strength, low content of free formaldehyde and good boiling water resistance. The adhesive can be used as a plywood adhesive, and the formaldehyde emission of the prepared plywood can reach the E0 standard,and the bonding strength meets the standard of a class II plywood. The lignin modified urea-formaldehyde resin adhesive has the advantages of simple preparation process, good stability, simple, fast and feasible quality control method, and low raw material cost, and is suitable for popularization and application.

The invention discloses a fireproof door middle seam provided with flame-retardant straw fire prevention boards. The fireproof door middle seam comprises a door frame, door leaves and hinges, wherein the door leaves are connected with the door frame by the hinges; a face exposed to fire and a face unexposed to fire are respectively formed at the two sides of each door leaf; a middle seam is formed by the contact surfaces of the left door leaf and the right door leaf; the left door leaf and the right door leaf are respectively formed by two parts, wherein the four flame-retardant straw fire prevention boards are arranged in the parts at the sides close to the middle seam, and the other parts connected with the flame-retardant straw fire prevention boards are made from steel section; a seam cover plate is also arranged in the fireproof door middle seam and is formed by cutting the flame-retardant straw fire prevention board. The fireproof door middle seam creatively overcomes the defect that a middle seam of the traditional steel or wooden fireproof door is easily deformed in the event of high temperature of a fire; the flame-retardant straw fire prevention boards are set as the parts, close to the middle seam, of the door leaves and the seam cover plate, so that the effects of fire prevention, flame retardance and smoke suppression are effectively achieved; the fireproof door middle seam guarantees the stability of a framework structure of the fireproof door when the fireproof door is in a fire; the middle seam is non-deformable and fireproof.

The invention belongs to the technical field of UV (ultraviolet) curing materials, and particularly relates to a vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting epoxy vegetable oil with diethyl phosphorus acetic acid to prepare bio-based phosphorus-containing polyol, reacting amino siloxane with hydroxyl acrylate to prepare a silicon-containing monomer, and reacting the hydroxyl acrylate, the bio-based phosphorus-containing polyol, the silicon-containing monomer and diisocyanate to prepare the vegetable oil-based flame-retardant polyurethane acrylate prepolymer. According to the invention, green and environment-friendly phosphorus and silicon elements are introduced into the molecular chain of the vegetable oil-based polyurethane acrylate prepolymer, so that the cured film has good flame retardant property, the defect that the traditional vegetable oil-based high polymer material is easy to burn can be overcome, and the application range of the bio-based high polymer material can be expanded.

The invention discloses a manufacturing technology of an environment-friendly anti-flaming straw board. The manufacturing technology comprises the following steps that (1) crop straws are impurity-removed and smashed; (2) measurement and sub-package are conducted; (3) pavement and mould-entering are conducted; (4) pre-pressing formation is conducted; (5) sizing and cold-pressing are conducted; (6) mould-locking is conducted; (7) maintenance and mould-releasing are conducted; (8) drying is conducted; (9) final trimming of a semi-finished product is conducted; (10) sanding is conducted; and (11) packaging and storehouse-entering are conducted. The manufacturing technology adopts a normal-temperature cold-pressing technology, the method is simple, high-temperature heating is not needed, and gluing can be completed in a normal-temperature state; a slab is dried only in a drying step by adopting a microwave technology, solid fuel is not consumed, no chimney exists in a factory, and the whole process is green and environmentally friendly; and in addition, the straws are principal raw materials matched with an inorganic flame retardant and an inorganic binder which have excellent performances, the obtained straw board cannot be carbonized and deformed in the anti-flaming process at a high temperature of above 1200 DEG C, no harmful smoke and gas is generated, the straw board does not conduct heat at a high temperature and does not swell when encountering water, and the comprehensive performance is quite excellent.

The invention discloses a monocomponent reaction type hot-melt adhesive and steel composite material using the hot-melt adhesive, belonging to the steel composite material technical field, in order to satisfy the requirement of adhesive which is suitable for bonding with polyvinyl chloride film, polyester film and steet plate and not accretionary on rolling and steel composite material using the hot-melt adhesive. The hot-melt adhesive comprises 100 mass portion of polyester resin, 2-12 mass portion of epoxy resin, 0.08-0.8 mass portion of curing agent and 5-25 mass portion of chloroacetic acid. The steel composite material has excellent impact resistance and boiling water resistance. The adhesive can firmly be bonded with the polyvinyl chloride film, polyester film and steet plate, and the polyester film and polyvinyl chloride film coated with the adhesive are not accretionary and the coating life is long.

The invention discloses metal base material corrosion-resistant coating and a preparation method thereof. The metal base material corrosion-resistant coating comprises the following components in parts by weight: 25 to 30 pats of epoxy modified organic silicon resin, 15 to 20 parts of modified vinyl resin, 1 to 2 parts of nano material, 1 to 3 parts of corrosion-resistant particulate filler, 15 to 18.5 percent of pigment and filler, 1 to 2 parts of antisettling agent, 0.3 to 0.5 part of dispersing agent, 0.5 to 0.8 part of stabilizing agent, 3 to 4 parts of aid and 23 to 26 parts of solvent, wherein the modified vinyl resin comprises according to the weight percentage 50 to 70 % of phenolic aldehyde epoxy vinyl ester resin and 30 to 50 % of flexible vinyl ester resin. The metal base material corrosion-resistant coating is prepared by multiple flows of weighing the raw materials in parts by weight, mixing the raw materials according to certain sequence, dispersing, grinding and the like. The metal base material corrosion-resistant coating has high temperature tolerance, wet resistance, corrosion resistance, weldability and constructability and can be applied in the technical fieldsof processing of various different metals.

The invention provides a wool felt-resistant two-component water-based paint and a preparation method thereof. The raw materials comprise component A: acrylic resin I, acrylic resin II, polyurethane resin, a base material wetting agent, an antifoaming agent, a dispersing agent, a delustering agent, a coalescing agent, a leveling agent, a wear-resistant additive, deionized water, water-based resin-free color paste and a thickener; and component B: aliphatic isocyanate. The preparation method comprises the following steps: uniformly dispersing the acrylic resin I, the acrylic resin II and the polyurethane resin, adding the base material wetting agent, the defoamer, the dispersant, the coalescing agent and the deionized water, uniformly dispersing, adding the delustering agent, dispersing until the fineness is qualified, adding the leveling agent, the deionized water, the wear-resistant aid, the thickener and the color paste, and uniformly dispersing; and discharging to obtain the component A, and uniformly mixing the component A with the component B aliphatic isocyanate to obtain the wool felt-resistant double-component water-based paint. The preparation method is simple, and the coating has excellent wear resistance, chemical resistance and the like.

The invention discloses a lignin-modified urea-formaldehyde resin adhesive and its preparation method and application. 1000 parts of formaldehyde, 45-140 parts of lignin, 8-28 parts of melamine, 680-860 parts of urea, 10.5-51 parts of alkali and 10 ‑20 parts of acid as raw material, add lignin in two batches, add urea in three batches, prepare lignin-modified urea-formaldehyde resin adhesive through one addition reaction and three polycondensation reactions, and the prepared adhesive has good initial tack , fast curing speed, high bonding strength, low content of free formaldehyde, good boiling water resistance, can be used as glue for plywood, and the formaldehyde emission of the prepared plywood reaches E 0 Grade standard, the bonding strength reaches the standard of Class II plywood. The lignin-modified urea-formaldehyde resin adhesive of the invention has simple preparation process, good stability, simple, fast and feasible quality control method, low raw material cost, and is suitable for popularization and application.

The invention discloses an aluminum alloy radiator and a preparation method thereof, belongs to the technical field of aluminum alloy surface treatment, and discloses an aluminum alloy radiator attached with a protective film, and the protective film contains a Mannich base compound. The metal compound prepared from the Mannich base compound and the metal reagent is used in the conversion liquid to prepare the aluminum alloy radiator attached with the protective film, and the conversion liquid is good in stability and can be stably stored for more than 20 days under the condition that the pH value is adjusted to 5; the prepared protective film is high in adhesion amount, and the weight of the protective film is 75 mg / cm < 2 > or above; the corrosion resistance is good, and the corrosion resistance is more than 50s in a 3% potassium dichromate solution; the boiling water resistance is good, and the salt water soaking resistance is good.