10results about How to "Guaranteed impact strength" patented technology

The invention provides high-gloss ASA rubber powder and a preparation method thereof, and relates to the technical field of high polymer material processing. The high-gloss ASA rubber powder is a grafted copolymer of acrylate rubber and a styrene-acrylonitrile copolymer, and comprises a core layer, a core layer and a shell layer from inside to outside, the particle size of the core layer is 50 to 100 nm; the particle size of the high-gloss ASA rubber powder is 100 to 300 nm; the core layer is prepared from the following raw material components in parts by mass: 100 to 120 parts of butyl acrylate; 1 to 5 parts of methyl propanamide; 1-10 parts of a composite emulsifier; 0.1 to 1 part of an initiator; 0.5 to 1.2 parts of nano silicon dioxide; and 100 to 180 parts of water. By optimizing the monomer components and proportion and optimizing the preparation method, the glossiness of the ASA colloidal particles is remarkably improved while the weather resistance, heat resistance and impact strength of the ASA colloidal particles are ensured.

The application relates to the technical field of C09D5 / 03, in particular to a high-transmittance acrylic powder resin and a preparation method thereof, raw materials for preparing the acrylic powder resin by weight percentage at least include: 80-100 parts of soft monomers, 400-600 parts of hard monomers, 0-10 parts of carboxyl functional monomers, 200-400 parts of ester functional monomers, 20-100 parts of hydroxyl functional monomers, 10-30 parts of initiators, 5-20 parts of chain transfer agents, 800-1200 parts of solvents and 1-10 parts of nano additives; the nano additives are added, and the synthesis process of the acrylic resin is optimized, so that the prepared acrylic powder resin has high transmittance and good weather resistance, and can meet the actual use requirements in the fields of automobile hubs and photovoltaics.

The present invention discloses a method for preventing the inner wall of a ship's seawater pipe from being corroded and fouled, and relates to the field of ship protection technology. The present invention is applied to a composite material anti-corrosion coating and anti-fouling technology for the inner wall of a ship's seawater pipe. The coating has excellent anti-corrosion and anti-fouling capabilities, excellent mechanical impact resistance, and good adhesion between the coating and the pipe wall substrate, which perfectly demonstrates the dual protection technology of the coating's anti-corrosion and anti-fouling. The coating prepared by the present invention is composed of polyurea modified resin, inorganic antibacterial powder and other additives and solvents. Compared with traditional polyethylene anti-corrosion coatings, it has better corrosion resistance and mechanical impact resistance, and stronger adhesion to the substrate. It will not fall off or even block the pipeline, affect the normal operation of the pipeline system, or even constitute a safety hazard that poses a normal and safe navigation of the ship, which may occur when polyethylene materials are used as anti-corrosion coatings.

The invention relates to the technical field of polyvinyl chloride sleeves, and discloses a flame-retardant PVC sleeve and a preparation method thereof.The flame-retardant PVC sleeve comprises an inner pipe, a metal copper net wrapping the outer side of the inner pipe, and an outer pipe wrapping the outer side of the metal copper net and the outer side of the inner pipe through injection molding; the inner tube comprises the following raw materials: 80-150 parts of polyvinyl chloride, 1-3 parts of chlorinated polyethylene, 20-40 parts of active nano calcium carbonate, 1-2 parts of paraffin, 1-2 parts of stearic acid, 1-3 parts of a flame retardant and 1-2 parts of a calcium-zinc stabilizer; the outer tube is prepared from the following raw materials in parts by weight: 50-120 parts of polyvinyl chloride, 1-5 parts of activated fiber, 10-20 parts of active nano calcium carbonate, 1-2 parts of zeolite powder, 1-2 parts of magnesium oxide, 1-2 parts of paraffin, 1-2 parts of polyethylene wax, 1-2 parts of stearic acid, 1-5 parts of a flame retardant, 1-3 parts of a calcium-zinc stabilizer and 1-2 parts of a processing aid LPA40. The invention also discloses a preparation method of the flame-retardant PVC sleeve.

The invention provides high-weather-resistance ASA rubber powder and a preparation method thereof, and relates to the technical field of high polymer material processing. The high-weather-resistance ASA rubber powder is of a three-layer structure comprising a core layer, a core layer and a shell layer from inside to outside, the particle size of the high-weather-resistance ASA rubber powder is 400 to 600 nm; the core layer is prepared from the following raw material components in parts by weight: 30 to 45 parts of styrene; 10 to 20 parts of acrylonitrile; 0.2 to 1.5 parts of an emulsifier; 0.1 to 0.5 part of trimethylolpropane trimethacrylate; 0.8 to 1.5 parts of vinyl triethoxy silane; 15 to 25 parts of silicone rubber emulsion; 0.2 to 0.6 part of an initiator; and 30-50 parts of water. The weather resistance of the ASA colloidal particles is remarkably improved while the impact strength of the ASA colloidal particles is ensured by optimizing the monomer components and the proportion and optimizing the preparation method.

The present application relates to the field of polymer materials, and specifically discloses a TPE corner material with high bonding strength and a preparation method thereof; a TPE corner material with high bonding strength, comprising a styrene elastomer, a chlorinated polypropylene compound, a tackifying resin, a filler, a filling oil, polypropylene, a lubricant, a pigment, a foaming agent, and other additives; the preparation method thereof is as follows: the filling oil is blended with the styrene elastomer and recorded as filler 1 and filler 2 respectively; the filler 1, the chlorinated polypropylene compound, the tackifying resin, the filler, polypropylene, the pigment, the lubricant, and other additives are blended to obtain a mixture 1; the filler 2 and the foaming agent are mixed evenly to obtain a mixture 2; the mixture 1 is fed through a main feeding port, the mixture 2 is fed through a side feeding port, and the mixture is extruded and granulated to obtain TPE corner material particles; and the invention has the advantages of high bonding strength, smooth surface, no shrinkage marks, and high processing efficiency.

The utility model discloses a kind of light high-strength welding wire disc with metal framework, including cylinder, the first clamping groove is equipped in cylinder one end, the second clamping groove is equipped in cylinder other end, there are several circular grooves between the first clamping groove and the second clamping groove, the first circular ring that size is consistent is encircled with the first clamping groove outer surface, the first circular ring is encircled with several connecting columns in cylinder one side, the second circular ring that size is consistent is encircled with the second clamping groove outer surface, the second circular ring is encircled with several fixed grooves in cylinder one side, first thread groove is equipped in the position of cylinder both ends middle, cylinder both ends are movably connected with limit disc, the middle position of limit disc is penetrated with second thread groove, the screw column that size is consistent is movably connected in second thread groove inside, limit post is equipped in screw column side, two limit disc both sides are encircled with reinforcing column, and several fixed columns are connected between reinforcing column;The utility model can enhance strength when in use.

The invention relates to the technical field of house structure noise detection, in particular to a house noise control material acoustic detection device which comprises an acoustic cabinet, a cover plate piece, a sound production unit, a detection unit, a first experiment piece and a second experiment piece. The first square steel and a square groove formed in the inner wall of the left side of the cabinet body are arranged in a sliding mode, and inner grooves formed in the left end and the right end of the sliding plate and groove rods arranged on the upper portion of the left side of the cabinet body are arranged in a sliding mode. And filling concrete, a first sound insulation pad, first structural concrete, a first steel plate, a buffer spring, a pressing frame, a barrel block and a first ceiling plate can be subsequently inserted and placed, in a similar way, a second experiment piece is conveniently installed in the acoustic cabinet, and through the arrangement, the first experiment piece and the second experiment piece can be conveniently combined and installed through the device body.

The invention discloses a method for preventing the inner wall of a ship seawater pipe from being corroded and stained, and relates to the technical field of ship protection. According to the composite material anti-corrosion coating applied to the inner wall of the ship seawater pipe and the anti-fouling technology, the coating has excellent anti-corrosion and anti-fouling capacity and excellent mechanical shock resistance, the coating and a pipe wall base material have good adhesive force, and the anti-corrosion and anti-fouling dual-protection technology of the coating is perfectly shown. The coating prepared by the invention consists of polyurea modified resin, inorganic antibacterial powder, other auxiliaries and a solvent. Compared with a traditional polyethylene anti-corrosion coating, the polyethylene anti-corrosion coating is better in corrosion resistance and mechanical shock resistance and higher in adhesive force with a base material, and the potential safety hazards that a polyethylene material is used as the anti-corrosion coating to possibly fall off, even block a pipeline, affect normal operation of a pipeline system and even cause normal safe navigation of a ship are avoided.

The application relates to the technical field of electric impact wrenches, in particular to an impact mechanism transmission device which comprises an impact shell and a rear end cover buckled on the impact shell, a transmission structure is arranged on the rear end cover; the transmission mechanism comprises a planet carrier rotatably arranged on the rear end cover, rotation gears are rotatably arranged in the planet carrier at equal intervals, an inner gear ring part meshing with the rotation gears is arranged on the rear end cover, an output shaft is arranged on the planet carrier, a driving shaft is rotatably arranged on the rear end cover and inserted into the planet carrier, and a driving gear part meshing with the rotation gears is arranged on the driving shaft. The application has the effects of guaranteeing assembly convenience and structural strength.