36results about How to "Good retroreflective performance" patented technology

Adoption of composite cube-corner retroreflective elements in which groups of each at least two sub-retroreflective elements which are each defined by three lateral faces mutually crossing at approximately right angles, as being configured by three-directional V-shaped parallel groove groups having substantially symmetrical sections and intersecting with each other, and which are arrayed in the closest-packed state, projecting on one side of their common sub-plane (SH-SH), each of said groups of sub-reflective elements being disposed on one main retroreflective element which is defined by three lateral faces mutually crossing at approximately right angles, as being configured by three-directional V-shaped parallel groove groups having substantially symmetrical sections and intersecting with each other, and which is disposed on the main plane (S-S).

The invention relates to the technical field of optics and in particular relates to a reflecting film. In order to solve the problems that the reflecting brightness of the reflecting film is reduced and the reflecting film is scratched when the reflecting film is exposed to the external environment and is used, the invention provides the reflecting film. The reflecting film comprises a pollution-prevention and scratching-resisting coating, a substrate layer, a micro-prism structure layer, a sealing layer, a bonding layer and a stripping layer in sequence. When being exposed in the external environment and actually utilized, the reflecting film provided by the invention has the advantages of hydrophobic, oleophobic, pollution-prevention and scratching-resisting properties.

The invention relates to a sticking type retroreflective film, successively comprising four layers from top to bottom: a protection layer, a retroreflective layer, a sticking layer and a substrate layer, wherein the substrate layer is composed of a base material, an adhesive and an isolating film. A preparation method comprises: first, uniformly spraying the sticking layer on the surface of the substrate layer to form a stable structure; secondly, before complete solidification of the sticking layer, uniformly spraying the retroreflective film on the surface of the sticking layer; and finally, covering the transparent sticking layer on the surface of the retroreflective film to form the sticking type retroreflective film. The sticking type retroreflective film is prepared by employing four layer composite technology, and is simple and convenient to use; through a retroreflective microstructure, the sticking type retroreflective film possesses excellent retroreflective effects; an outer layer is covered by the protection layer, thereby prolonging the service life; meanwhile, preparation processes are simple, and raw materials are easy to obtain, thereby facilitating processing line production.

The invention relates to the field of optical technologies, and in particular relates to a micro prism reflective film. In order to solve the problems of low reflection brightness and scratch of the existing reflective film in an external environment, the invention provides the micro prism reflective film. The micro prism reflective film comprises an anti-fouling anti-scratch coating, a substratelayer, a micro prism structure layer, a metal reflective layer and a sealing layer in order. The micro prism reflective film provided by the invention has the advantages of high reflection brightnessand scratch prevention in practical application in the external environment, and solves the problem that a micro prism reflective film provided with a traditional sealing layer cannot realize high reflectance.

The invention relates to quick-drying road marking paint, specifically a water-soluble nanometer quick-drying road marking paint, which is composed of modified acrylic resin, a dispersing agent, a wetting agent, a defoaming agent, rutile type titanium dioxide, 500-mesh calcium carbonate powder, 500-mesh quartz powder, 800-mesh mica powder, nano-silicon dioxide, nano-zinc oxide, ethanol (methanol), an antifoaming agent, a film-forming additive, an HEC thickener with a concentration of 1.5%, deionized water, and ammonia water. The paint of the invention has strong adhesion to a roadbed, and improves constraint anchoring to glass beads, thus not only improving the service life of the road marking paint, but also enhancing the visibility of a a road mark during night raining. The paint provided in the invention also has the advantages of simple and safe construction, and no environmental problem.

The invention discloses a semi-aluminized glass microbead production technology and a bead brushing device of semi-aluminized glass microbeads. A semi-aluminized layer is arranged plated on the surface of each glass microbead. The glass microbeads are formed through a bead embedding technology, the vacuum aluminizing technology and the bead brushing technology. During bead brushing, bead brushing is achieved through the bead brushing device of the semi-aluminized glass microbeads. The device is composed of a rack (12), an unwinding frame (1), a winding frame (2), a traction device, a brush roller (7), a tension roller (8), a flying preventing plate (13) and a collection trough (11). The semi-aluminized glass microbead production technology and the bead brushing device of the semi-aluminized glass microbeads have the advantages that the semi-aluminized glass microbeads are uniquely applied in the light reflecting printing ink field, play a role in light reflecting and alarming is played, the adhesive power between the semi-aluminized glass microbeads and screen printing glue is good, the semi-aluminized glass microbeads can be continuously collected on a large scale, collection efficiency is high, the flying amount is small, the semi-aluminized glass microbead flying amount is small, the aluminized layers on the surfaces of the glass microbeads are not damaged in the brushing process, and the semi-aluminized glass microbeads brushed away are clean without dust and have the higher retroreflection performance.

The invention discloses an onboard life jacket utilizing the Beidou system. The onboard life jacket comprises a Beidou RDSS sea lifesaving positioning beacon, a life jacket body, heating attaching pieces and an inflatable airbag. The Beidou RDSS sea lifesaving positioning beacon is fixed to the shoulder of the life jacket body, a Beidou RDSS radio frequency chip and a Beidou RDSS baseband chip areconnected through an A/D converter, a Beidou RDSS navigation unit is connected with an antenna in a controlling mode through a pre-amplifier (PA) and a low noise amplifier (LNA), and a terminal control unit is connected with the Beidou RDSS navigation unit in a controlling mode through an MCU module and a power supply management unit. The heating attaching pieces are evenly attached to the interior of the life jacket body, and the inflatable airbag is mounted at the neck of the life jacket body. An inflatable lifesaving device is mounted on the lower portion of the inner side of the life jacket body, and an alarm is mounted at a collar of the life jacket body. Self-rescue after falling into water can be realized by means of the life jacket body, the falling-into-water coordinates can be transmitted to a rescue center so that the rescue center can accurately carry out rescue, and position coordinate information can be accurately positioned in real time when emergency conditions occur.

The invention discloses a radiation cooling coating and a preparation method thereof, and relates to the technical field of coatings. Wherein the radiation cooling coating comprises the following components in parts by weight: 5-7 parts of polysiloxane resin, 20-25 parts of reflective powder, 18-22 parts of hydrophobic modified silicon dioxide, 1-3 parts of fibers, 40-50 parts of a solvent and 0.25-0.7 part of a curing agent. In the technical scheme provided by the invention, the polysiloxane resin has good corrosion resistance, ultraviolet resistance and hydrophobicity, so that the service life of the radiation cooling coating is longer; meanwhile, the polysiloxane resin and the silicon dioxide have a large number of silicon-oxygen bonds and have absorption peaks in the wave band of 8-14 microns, so that the radiation rate is excellent, and through the synergistic effect of the polysiloxane resin and the silicon dioxide, the radiation cooling performance is excellent; the reflective powder has excellent retroreflection performance, and by adding the reflective powder, the absorbed sunlight can be retroreflected into extremely cold space, so that multiple reflections of the sunlight among urban high-rise buildings are effectively reduced, and the heat island effect is further reduced.

The invention discloses a three-dimensional deceleration marking which comprises color marking belt coatings coated on a road. A color marking belt is of a pentagon shape of a symmetric structure. The pentagon is divided into an isosceles triangle and two parallelograms symmetric in position through three middle lines. The isosceles triangle and the two parallelograms share one edge in pairs, and the bottom edge of the isosceles triangle is not shared. In the running direction of a vehicle, the bottom edge of the isosceles triangle is perpendicular to the running direction of the vehicle, and the two parallelograms are located in front of the bottom edge of the isosceles triangle. The isosceles triangle and the two parallelograms are respectively filled with one marking belt coating of a color, and the colors of the three marking belt coatings are different. The three-dimensional deceleration marking is low in cost, obvious in effect and capable of preventing the vehicle from badly damaging the road, and reduces road overhaul and maintenance cost.