12results about How to "Weather resistant" patented technology

The application discloses isosorbide bio-based polyurethane acrylate, which is prepared from bio-based isosorbide, bio-based 1,2-pentanediol, bio-based 1,5-pentanediol and bio-based succinic acid as raw materials through esterification reaction, vacuum polycondensation reaction, bio-based hydroxyl-terminated polyester, reaction of bio-based hydroxyl-terminated polyester and bio-based 1,5-pentamethylene diisocyanate, bio-based polyurethane, reaction of bio-based polyurethane and hydroxyethyl acrylate, and UV-curable isosorbide bio-based polyurethane acrylate. The application discloses application of the isosorbide bio-based polyurethane acrylate in preparation of UV coating, ink and adhesive. The isosorbide bio-based polyurethane acrylate is compounded with a UV monomer into a UV resin, the UV resin is compounded into a UV coating, and after curing, the UV coating has excellent properties such as high hardness, wear resistance, scratch resistance, heat resistance and weather resistance, and can be used as raw material of the UV coating, ink and adhesive.

The invention discloses a polypropylene composite material with weather resistance and flame retardancy and a preparation method thereof, and belongs to the field of thermoplastic high molecular polymer materials. The invention comprises the following steps: a benzyl-containing hindered phenol antioxidant, bromine and a free radical initiator react to obtain a brominated hindered phenol antioxidant; the brominated hindered phenol antioxidant reacts with an amino-terminated organosiloxane to obtain a hindered phenol-organosiloxane; hindered phenol-organosiloxane, a carbon-carbon double bond-terminated organosiloxane and an organic weak acid react to obtain a carbon-carbon double bond-terminated hindered phenol-organosiloxane; hindered phenol-organosiloxane and propylene are polymerized under the action of a composite catalyst to obtain a polypropylene composite material. The invention directly introduces a functional group with flame retardancy and antioxidant properties into the main chain of polypropylene by covalent crosslinking during the preparation process of polypropylene, and then polymerizes to obtain a polypropylene composite material with weather resistance and flame retardancy.

The utility model relates to the technical field of rubber joints, in particular to an anti-fatigue rubber joint which comprises joint ends, the joint ends are symmetrically distributed along the two ends, an integrally-formed joint center is arranged between the two joint ends, and built-in grooves are formed in the joint ends. Through the design of the joint center and the side flaps, the anti-fatigue and anti-deformation capacity of the rubber joint is remarkably enhanced, when the rubber joint needs to be bent, damage caused by bending can be reduced, the damping effect is achieved when objects at the two ends are extruded and impacted, the side flaps are annularly distributed outside the joint center and can be matched to be bent when the joint center is bent, and the anti-fatigue and anti-deformation capacity of the rubber joint is improved. In addition, the joint end is wrapped by the woven sleeve made of the aluminum alloy material, the situation that the joint end is extruded and deformed when connected with a pipe fitting or a rod piece is avoided, and the fatigue resistance of the rubber joint is further guaranteed.

A process for repairing the gable roof of a hip-and-gable building is characterized by the following steps: 1. Repairing the wooden base layer; 2. Applying protective plaster; 3. Applying two layers of hemp and six layers of plaster; 4. Applying three coats of pigment paint and one coat of varnish; 5. Making and installing a metal gable roof made of finely carved aluminum plate; 6. Fixing with round nails; 7. Restoring the glazed tile ridge and roof tiles; wherein, the method for making the metal gable roof includes: (1) splicing metal aluminum materials and polishing and finely carving the joints; (2) applying an epoxy fluorocarbon composite coating; the coating has a three-layer structure, consisting of a base layer, an intermediate layer and a cover layer, wherein the base layer is made of an epoxy resin type primer containing epoxy resin, epoxy modified filler and isocyanate curing agent, the intermediate layer is made of a composite two-component intermediate paint containing epoxy resin, fluorocarbon resin, polyamide resin and aliphatic polyamine curing agent, and the cover layer is prepared by a two-component fluorocarbon topcoat.

The utility model discloses a polyimide double-sided adhesive tape for a light-emitting diode (LED) flexible circuit board, which relates to the technical field of double-sided adhesive tapes and comprises a base layer, an anti-static layer is arranged on the upper surface of the base layer, a first adhesive layer is arranged on the upper surface of the anti-static layer, a first film coating layer is arranged on the upper surface of the first adhesive layer, and a second film coating layer is arranged on the upper surface of the second adhesive layer. A second adhesive layer is arranged on the lower surface of the base layer, and a second film covering layer is arranged on the lower surface of the second adhesive layer. According to the anti-static adhesive tape disclosed by the utility model, the anti-static layer is arranged on the upper surface of the base layer, and silver has good conductivity which is several times or even hundreds of times that of common conductive metal, so that static electricity generated in the use process of the adhesive tape can be eliminated, and components in an LED lamp can be protected.

The invention relates to a preparation method of a low-dielectric moisture-proof organic silicon coating for a quartz / quartz composite material, which is characterized by comprising the following steps: step 1, preparing an organic silicon impregnation liquid which is formed by mixing organic silicon resin, a curing agent and a solvent at normal temperature and normal pressure; the mass ratio of the organic silicon resin to the curing agent to the solvent is 1: (0.001-0.01): (1-2); step 2, dipping the quartz / quartz composite material in the organic silicon dipping liquid under a vacuum condition for 2-8 hours; the advantages of high and low temperature resistance, low dielectric constant, hydrophobicity, weather resistance and the like of the organic silicon resin are utilized, the organic silicon resin serves as a moisture-proof coating, and the moisture-proof capacity of the quartz composite material is improved while good dielectric performance and high-temperature stability are kept.

The invention discloses an electrode detection type motorcycle handlebar detection device and system, and relates to the field of motorcycle driving skill examination industry. The device comprises a control center mainboard and detection electrodes, the detection electrodes at least comprise a left handle electrode and a right handle electrode, the control center mainboard sends a high-voltage short-pulse coding signal to the left handle electrode, and whether an examinee correctly holds a handle is judged by monitoring the integrity of a return signal of the right handle electrode. The method has the advantages that the problems of poor interference resistance and high false alarm rate of an existing capacitive touch mode are solved through the special signal coding and pulse frequency modulation technology, meanwhile, the defects of blind areas, high cost and multi-vehicle mutual interference of an AI detection mode are overcome, human body non-inductive safety and offline independent high-reliability detection are achieved, the false alarm rate is smaller than or equal to 0.05%, and the method is suitable for popularization and application. The strict requirement of a driving test policy on the stability of the sensor is met, and the requirement for simultaneous use of multiple vehicles in test and training scenes is met.

The invention relates to the technical field of coatings, in particular to water-based two-component low-temperature stoving varnish for a photovoltaic frame and a preparation method of the water-based two-component low-temperature stoving varnish. The water-based two-component low-temperature stoving varnish for the photovoltaic frame comprises a component A and a component B, comprising the following raw materials in parts by weight: 50-60 parts of resin, 10-25 parts of functional filler, 4-10 parts of a solvent, 0.2-0.5 part of a defoaming agent, 0.1-0.3 part of a wetting agent, 0.5-1.5 parts of a dispersing agent, 0.2-0.5 part of a thickening agent and 10-15 parts of water, and the component B is isocyanate. The low-temperature baking varnish prepared by the invention has good adhesive force and excellent corrosion resistance, aging resistance and wear resistance.

The utility model relates to a cold-formed thin-walled structure grating plate plant windproof device which comprises a windproof frame used for supporting and fixing a grating plate windproof assembly; the grating plate windproof assembly is detachably connected with the windproof frame and comprises a grating plate and a back steel plate, the back steel plate is used for being detachably connected with the windproof frame, and vegetation patterns or picture slogans are arranged on the surface of the grating plate. The cold-formed thin-walled section steel is adopted to replace a wood structure, so that the cold-formed thin-walled section steel has the characteristics of light weight, durability, wind resistance and the like, the use of wood can be reduced, and the turnover rate of materials is improved; the grating plate is adopted as a windproof material, plant greening patterns are arranged, the stereoscopic effect is achieved when the grating plate is viewed from all angles, and the grating plate has the advantages of being attractive, natural and the like and meanwhile has the characteristics of weather resistance and aging resistance. By adopting the detachable connection mode of the powerful magnets and the like, the device is easy to disassemble, assemble and transport, manpower and material resources are saved, and the cost is reduced.

The invention discloses a weather-proof metal film which is attached to a vamp material and sequentially comprises a bonding layer, a heat insulation layer and a decoration layer, the bonding layer is used for bonding the vamp material and the heat insulation layer, the decoration layer is connected with the heat insulation layer, the decoration layer sequentially comprises a first layer, a second layer and a third layer, the first layer is connected with the heat insulation layer, the third layer is made of a PU material containing weather-proof metal powder, and the second layer is made of a PU material containing weather-proof metal powder. At least two adjacent layers of the first layer, the second layer and the third layer are provided with different lines, the third layer and / or the second layer are transparent, at least one of the first layer and the second layer is made of a PU material containing weather-proof metal powder, at least one of the first layer, the second layer and the third layer is provided with different colors, and the third layer and / or the second layer is transparent. And the weather-proof metal powder is aluminum powder. By the adoption of the technical scheme, the weather resistance of the composite hot pasting film can be improved.

The utility model discloses a high-strength composite geonet pad, which belongs to the field of composite geonet pads and comprises a three-dimensional polypropylene wire framework layer and a composite geonet pad formed by adding a reinforcing layer between the three-dimensional polypropylene wire framework layer and non-woven fabrics. The high temperature resistance and the low temperature resistance of the composite geonet pad can be improved through the anti-freezing breathable cotton and the flame-retardant breathable cotton, the problems of spontaneous combustion of the composite geonet pad at the high temperature and frost damage and breakage at the low temperature are solved, the composite geonet pad has weather resistance when used, the structural strength of the three-dimensional polypropylene wire framework layer can be improved through the steel wire mesh, and the service life of the composite geonet pad is prolonged. The stretching strength, the bending strength and the shearing strength of the composite geonet pad in use can be further improved through a net-shaped structure woven by the glass fiber strips and the steel wire strips, so that the use strength of the composite geonet pad can be effectively enhanced, and the composite geonet pad is ensured not to be broken and damaged in use; the service life of the composite geonet pad is prolonged, and the composite geonet pad is convenient to use.

The utility model relates to the technical field of grab handle electric picks, in particular to a low-vibration grab handle electric pick which comprises a low-vibration grab handle electric pick body and a grab handle fixedly installed at the bottom of the low-vibration grab handle electric pick body, and a vibration reduction mechanism used for reducing vibration when the grab handle is used is arranged on the outer surface of the grab handle. Reinforcing mechanisms are arranged at the two ends of the vibration reduction mechanism correspondingly. Through the arrangement of the vibration reduction rubber sleeve and the elastic metal hoop, when the vibration reduction rubber sleeve needs to be replaced, the elastic metal hoop can be taken down by reversely rotating the nut and taking down the nut and the threaded column through a tool, so that the vibration reduction rubber sleeve is detached and replaced, and the hand holding stability is prevented from being reduced; and the personal safety of workers can be protected.