73 results about "Light absorber" patented technology

The invention discloses a full-automatic machining device based on pipeline support manufacturing, and relates to the technical field of metal machining, the full-automatic machining device comprises a base, a plurality of supporting strips mounted at the top of the base and a laser cutting machine mounted at the top of the base, and further comprises a material guiding mechanism and a material conveying mechanism, the cover body is arranged at the top of the base, the vacuum fixing assembly is installed in the cover body, and the displacement assembly is used for driving the cover body to move. The composite treatment mechanism comprises two sliding blocks arranged in the cover body, cleaning rollers installed on the outer walls of the opposite sides of the two sliding blocks correspondingly, polishing rollers installed at the bottoms of the sliding blocks and a linkage assembly used for driving the two sliding blocks to move; after the strip-shaped support is cut through laser, the strip-shaped support is transferred away, the strip-shaped support is sequentially subjected to light absorbent cleaning, notch polishing and cooling treatment, and the problem that in the prior art, follow-up treatment operation on the strip-shaped support is complex is solved.

The present application relates to a light spot analysis system, which comprises a shell and an analysis assembly, the shell is provided with an opening, and the analysis assembly is arranged in the shell and used for light spot analysis, the analysis assembly comprises a collimating lens, a wedge prism used for decomposing laser into a reflected light beam and a transmitted light beam, a measuring camera used for measuring the reflected light beam, and a tail light absorber used for absorbing the transmitted light beam, the collimating lens is arranged at the opening, and the wedge prism is arranged between the collimating lens and the measuring camera, wherein one analysis assembly is provided with a focusing lens, and the focusing lens is arranged between the wedge prism and the measuring camera. The present application can be applied to high-power laser measurement analysis of different wavelengths, and cost reduction is realized at the same time.

The invention provides a 3D printing material suitable for photocuring and a preparation method thereof. The 3D printing material comprises an acrylic-terminated hydrogenated nitrile rubber prepolymer, a reactive diluent, a photoinitiator and a light absorbing agent, the structural general formula of the acrylic-terminated hydrogenated nitrile rubber prepolymer is as shown in formula 1, and in the formula 1, R1 and R4 are respectively and independently at least one of C2-C10 alkylene groups; r < 2 > and R < 5 > are respectively and independently at least one of alkylene groups of C < 2 > to C < 10 >; r3 and R6 are respectively and independently at least one of the following; x is 10-40, y is 10-40, and z is 10-40. The 3D printing material provided by the invention can be rapidly cured to realize 3D printing, the oil resistance of the 3D printing material is equivalent to that of traditional HNBR, repeated printing and parallel printing can be realized, and a 3D printing product has a shape memory effect.

This application provides a long-wave infrared light absorber based on phase change materials and MIM structures, belonging to the field of integrated photonic devices. The absorber includes a reflective layer, a double dielectric layer, and a metasurface layer. The metasurface layer allows light waves to enter the double dielectric layer through diffraction. The reflective layer and the metasurface layer form two reflective surfaces, allowing the light waves to undergo multiple reflections and achieve FP-cavity resonance. When the metasurface layer is crystalline and the polarization state of the light wave is not parallel to that of the metasurface layer, both the reflective layer and the metasurface layer possess metallic properties, enabling plasmon resonance when the frequency of the incident light wave matches the collective oscillation frequency of free electrons in the metal. Both FP-cavity resonance and plasmon resonance lead to the localization and enhancement of the electromagnetic field within the double dielectric layer, thereby enhancing the absorption of light waves. This application achieves reversible switching between two light wave absorption states by changing the phase state of the phase change material.

The present invention provides a protective film agent and a method for processing a workpiece, the protective film agent being capable of forming a protective film suitable for processing with a laser beam. The protective film agent is coated on a workpiece when the workpiece is processed, the protective film agent comprising: a water-soluble resin; a light absorber having a flavone structure, a flavonol structure, or an isoflavone structure; and a solvent that dissolves the resin and the light absorber.

The application relates to the technical field of high polymer composite materials, in particular to a zinc-aluminum-magnesium alloy steel-plastic co-extrusion floor composite material and a preparation method thereof, which comprises the following components in percentage by mass: 70-80% PE resin; 10-20% PMMA resin; 5-10% toughening agent; 2-5% compatilizer; 0.5-2% antioxidant; 0.5-1% light stabilizer; 1-5% light absorber; 1-2% lubricant; the above raw materials are weighed according to the proportion, mixed uniformly in a high-speed batching stirrer, melt-extruded and granulated in a double-screw extruder, and after water tank cooling, granulation and drying treatment, the composite material is obtained; through formula synergistic modification, the performance goals of low gloss, high wear resistance, excellent aging resistance and size stability of the material are realized; meanwhile, the application also provides a preparation method of the alloy material, which is simple, controllable and suitable for industrial large-scale production.

The invention provides a cesium lead bromide quantum dot / single-layer molybdenum disulfide 0D / 2D heterojunction photoelectric sensor and a preparation method thereof, and belongs to the technical field of photoelectric devices. Constructing a patterned bottom electrode by adopting an Au / p + type silicon substrate / SiO2 structure; preparing a single-layer molybdenum disulfide (MoS2) film by a mechanical stripping method, and transferring the single-layer molybdenum disulfide (MoS2) film to the patterned silicon wafer electrode; and spin-coating the single-layer molybdenum disulfide film with the quantum dot solution, drying and annealing to obtain the cesium lead bromide quantum dot / single-layer molybdenum disulfide 0D / 2D heterojunction photoelectric sensor. According to the invention, CsPbBr3 QDs with efficient light absorption and single-layer MoS2 with high carrier mobility are integrated together, and CsPbBr3 QDs are used as an effective light absorbent to enhance a local electric field around MoS2. And by utilizing the synergistic effect of the CsPbBr3 QDs and the single-layer MoS2, the separation rate of photon-generated carriers in the heterojunction is accelerated, and the light absorption capability of the MoS2 device is improved. The p + type silicon substrate is combined with the annealing process, a Br-rich passivation ultra-clean II type heterojunction interface is constructed, and the charge separation efficiency and the environmental stability are remarkably improved.

Provided are an antireflection film having an antireflection layer that has an integrated reflectance of 1% or less in a wavelength band of 1530-1625 nm and has an uneven structure on the surface thereof, a stray light suppression film having at least the antireflection film and a light absorber, and a light receiving device having the stray light suppression film inside the device.

Methods and corresponding structures for fabricating an integrated electronics structure are provided. A temporary stack is provided that includes a carrier body, a bonding layer, and an electronics structure base that is crystallographically grown on the bonding layer. An electronics structure is built on the electronics structure base, defining an integrated electronics structure that includes the electronics structure base and the electronics structure. A pulse of light is used to weaken the bonding layer, and the integrated electronics structure is separated from the carrier body.

The invention relates to a method and system for obtaining a customized optical article having at least one predetermined optical property in visible and / or invisible light domain(s) selected from absorbance and transmittance, by thermal transfer via a sublimation technique from a printed support comprising a support and at least one ink (C, M, Y) printed on the support according to an inking level, the at least one ink comprising at least one sublimable dye selected from visible dyes, invisible dyes and mixtures thereof. The invention particularly applies to an ophthalmic lens part, even though it may concern any optical article to be tinted and / or provided with an invisible light absorber such as IR, UV and / or blue light absorbers. The method comprises controlling the inking level of the at least one ink (C, M, Y) to obtain said customized optical article, by using an experimentally determined variation law of the at least one predetermined optical property as a function of the inking level of the at least one ink.

This invention relates to a hot stamping film based on digital printing technology, its preparation method, and its application, belonging to the field of hot stamping film technology. The hot stamping film of this invention comprises, from bottom to top, a substrate, a release layer, a protective layer, and an adhesive layer. The release layer comprises the following raw materials in parts by weight: 20-30 parts thermoplastic polyurethane resin and 2-4 parts micronized polyethylene wax. The protective layer comprises the following raw materials in parts by weight: 10-20 parts silicone-modified acrylic resin, 5-9 parts fluorine-modified silicone resin, 0.1-0.3 parts drying agent, 0.5-1 part light stabilizer, 0.5-1 part light absorber, and 1-3 parts curing agent. The hot stamping film prepared by this invention has water resistance, shatter resistance, and stain resistance. It offers higher production efficiency and eliminates flowing liquid, ensuring high quality and environmental protection, while also reducing production costs. The hot stamping film based on digital printing of this invention allows for personalized customization, is easy to operate, possesses exquisite patterns printed by thermal sublimation, and also has excellent substrate applicability and adhesion.

The application provides a conductive polymer-derived ceramic and a preparation method thereof, and relates to the technical field of ceramics.The preparation method comprises the following steps: uniformly mixing a silicon-containing polymer precursor, a silane coupling agent, a photosensitive monomer, a photoinitiator, a light absorber and an oxygen polymerization inhibitor to obtain a precursor slurry; performing light-curing printing on the precursor slurry to obtain a ceramic body; performing pyrolysis treatment on the ceramic body to obtain an intermediate sample; and performing sintering treatment on the intermediate sample under an inert gas protection atmosphere to obtain a polymer-derived ceramic; wherein the temperature of the sintering treatment is not lower than 1450 DEG C.For the preparation of the polymer-derived ceramic through the DLP molding technology, the method of the application can ensure that the volume shrinkage of the ceramic body obtained through light-curing molding is small, and the polymer-derived ceramic with good conductivity can be obtained.

The application discloses a kind of color laser marking composition and its preparation method and application.The color laser marking composition includes the following components calculated by weight parts: resin 88-110 parts;Photosensitive reversible toner 0.1-5 parts;Visible light absorber 0.01-1 parts;Pigment 0.1-2 parts;Ultraviolet absorber 0.05-1 parts.In the application, the color laser marking composition can mark color marks on white and color substrates by adding photosensitive reversible toner and visible light absorber, combined with ultraviolet absorber, has higher definition and color saturation, and marking is controllable.

The present invention provides a light absorber that exhibits high transmittance in the visible light region, particularly in the red band, and can effectively block near-infrared light. [Solution] The transmission spectrum of the light absorber 10 at an incident angle of 0° satisfies the following conditions: (I) The average transmittance in the wavelength range of 450nm to 600nm is 75% or more. (II) The first wavelength at which the transmittance is 50% in the wavelength range of 350nm to 450nm is between 380nm and 440nm. (III) The second wavelength at which the transmittance is 50% in the wavelength range of 650nm to 750nm is between 680nm and 740nm. (IV) The maximum transmittance in the wavelength range of 350nm to 370nm is 1% or less. (V) The maximum transmittance in the wavelength range of 800nm ​​to 900nm is 5% or less. (VI) The maximum transmittance in the wavelength range of 1100nm to 1200nm is 5% or less.

The invention provides glass with a coating and a vehicle. The surface of the glass is provided with a coating; the coating contains an ultraviolet light absorber and an infrared light absorber; the peak values of all absorption peaks of the ultraviolet light absorber are below 390nm, and the maximum absorption peak is within the wavelength range of 350nm-380nm; the peak values of all absorption peaks of the infrared absorbent are more than 900nm, and the maximum absorption peak is in the wavelength range of 950nm to 1500nm; the transmittance of the glass with the coating in the wavelength range of 300nm-400nm is less than or equal to 1%; the transmittance of the coated glass in the wavelength range of 780 nm to 2500 nm is smaller than or equal to 15%. The invention further provides a vehicle provided with the glass. The glass provided by the invention has relatively low transmittance for ultraviolet rays and infrared rays with the wavelength range of 380-400nm.

A light-absorbing composition includes a silicon-containing compound α and a light-absorbing compound. The silicon-containing compound α is at least one selected from the group consisting of an alkoxysilane including a group α-1 having 10 or more carbon atoms and a hydrolysate of the alkoxysilane.

This invention discloses a hierarchical porous material with catalytic activity, its preparation method, and its application. A photosensitive resin is obtained by stirring and reacting a halogen-containing photopolymerizable ionic liquid monomer, a photopolymerizable monomer, a multifunctional crosslinking agent, a non-reactive porogen, a photoinitiator, and a light absorber. The photosensitive resin is then placed in a 3D printing device to print a preform. The preform is placed in a supercritical drying device, where liquid CO2 is used as the medium for extraction and displacement. Subsequently, the temperature and pressure are increased to above the supercritical point of CO2, and the hierarchical porous material with catalytic activity is obtained through supercritical drying. This invention introduces highly nucleophilic halide ion sites and utilizes photopolymerization 3D printing and polymerization-induced phase separation technology to construct a hierarchical porous material that combines macroscopically customized flow channels with microscopically interconnected pores. This material, as a catalyst, can achieve highly efficient catalysis of the cycloaddition reaction of CO2 and epoxides under mild conditions.

The invention discloses a preparation method of a non-coated blue-light-absorbent-free high-refractive-index anti-blue-light optical film, and the preparation method specifically comprises the following steps: step 1, carrying out a dimercaptothiadiazole-diisocyanate polyurethane reaction to obtain polythiourethane; and 2, coating the product obtained in the step 1 to form a film. The invention also discloses a non-coating blue-light-absorbent-free high-refractive-index anti-blue-light optical film, dimercaptothiadiazole and isocyanate are used for reacting to generate a polymer, the anti-blue-light optical film can be prepared through structural design without adding a blue-light absorbent or coating a blue-light film, the refractive index is high, and the price is low.

The BNNTs reinforced ceramic slurry comprises ceramic powder, a monomer / cross-linking agent combination, a ceramic powder surface modifier, boron nitride nanotubes, a dispersing agent, a sintering aid, a photoinitiator and a light absorbing agent, the ceramic powder is aluminum oxide, and the particle size D50 of the ceramic powder is 0.02-1 [mu] m; the diameter range of the boron nitride nanotube is 10 to 100 nm; the monomer / cross-linking agent is acrylic acid, the ceramic powder surface modifier is a KH series, and the dispersing agent is a DisperBYK series; the sintering aid is Y2O3, the photoinitiator is Irgaure819, and the light absorbing agent is Tinuvin 171; the ceramic forming method based on the reinforced ceramic slurry comprises five steps. The slurry prepared by the invention can effectively offset high viscosity brought by TMPTA and ceramic powder, improves material dispersibility, reduces viscosity, enhances mechanical strength of a cured green body, ensures long-term storage stability of the slurry and Z-axis resolution of printing equipment, reduces friction force and agglomeration among ceramic powder particles, and improves the quality of the ceramic powder. And the mechanical property of the finished ceramic can be improved.

A resin composition for forming a molding member included in a semiconductor package may include an epoxy resin in a range of about 2 wt % to about 10 wt %, a hardener in a range of about 2 wt % to about 10 wt %, a filler in a range of about 70 wt % to about 90 wt %, a light absorber in a range of about 0.1 wt % to about 3 wt %, and an additive in a range of about 0.1 wt % to about 3 wt %, and the light absorber includes a compound having a heptamethine cyanine structure. A method of manufacturing a semiconductor package may include forming a molding member using the resin composition.

The invention relates to the technical field of solar energy utilization, in particular to a composite film material and a preparation method and application thereof. The composite film material comprises the following preparation raw materials in parts by mass: 5-20 parts of an inorganic semiconductor nanomaterial, 75-90 parts of an organic conjugated polymer and 1-5 parts of a surface modifier, the inorganic semiconductor nanomaterial is selected from tungsten disulfide or molybdenum disulfide nanosheets; the organic conjugated polymer is selected from poly (3-hexylthiophene-2, 5-diyl) or poly [bis (4-phenyl) (2, 4, 6-trimethylphenyl) amine]; and the surface modifying agent is 3-amino propyl triethoxy silane. An inorganic semiconductor nanomaterial and an organic conjugated polymer are accurately selected to construct a light absorption system covering ultraviolet-visible-near infrared full wave bands; 3-aminopropyltriethoxysilane is introduced, so that the problems that an inorganic phase is easy to agglomerate and has many interface defects are effectively solved, and a structural guarantee is provided for stable exertion of the light absorption performance and the photothermal conversion performance of the material.

The application discloses a preparation method of a novel laser synchronous prefabricated high-speed steel roller nanometer oxide ceramic film, which comprises the following steps: firstly, cleaning the surface of the high-speed steel; and then, carrying out phosphating treatment on the surface of the roller; the phosphating treatment is carried out at normal temperature by using an iron-based phosphating solution to generate a dark phosphating film with a thickness of 0.15-0.7 microns; the phosphating film has the characteristics of being loose and porous; nanometer alumina ceramic particles are filled in the internal pores of the phosphating film by ultrasonic spraying; the phosphating film can also be used as a light absorber; and high-power laser is used to irradiate the metal surface to obtain a dense nanometer oxide ceramic film. The nanometer oxide ceramic film is integrated into the surface of the steel, so that the high-temperature oxidation resistance, wear resistance and thermal fatigue resistance of the material can be greatly improved.

The application relates to the field of optical materials and nanostructure technology, and particularly relates to a kind of ultraviolet broadband light absorber based on graphene and multilayer periodic structure.The structure of the ultraviolet broadband light absorber is sequentially from top to bottom as follows: a graphene layer, a distributed Bragg reflection grating structure layer, and a SiO2 substrate at the bottom.The preparation process of the ultraviolet broadband light absorber comprises the following steps: graphene layer preparation;SiO2 layer deposition;TiO2 layer deposition;multilayer superposition;graphene layer addition;and device completion.The application greatly improves the light absorption efficiency of graphene in the ultraviolet waveband, realizes broadband and efficient absorption in the wavelength range of 240-370 nm, the highest absorption rate can reach 99.75%, and the absorber is not sensitive to polarization and the preparation process is simple, which provides technical support for the design of high-efficiency ultraviolet light absorber.

The present invention relates to a display device in which damage during a manufacturing process is minimized, a method of manufacturing the same, and an electronic apparatus. The display device includes: a display panel divided into a display area displaying an image and a peripheral area surrounding the display area, in which the peripheral area includes a bending area bendable around a bending axis; an upper protective layer disposed on the display panel in the display area; a cover layer disposed on the upper protective layer and overlapping the display area in a plan view; the bending protection layer is arranged on the display panel in the bending area; and a light absorbing layer disposed between the upper protective layer and the bending protective layer on the display panel, overlapping one edge of the cover layer in plan view, and including a plurality of light absorbers.

The application belongs to the technical field of energy storage, and relates to a composite phase change material and a preparation method and application thereof.The composite phase change material comprises a paraffin base body and a heat-conducting phase change material dispersed in the paraffin base body; the heat-conducting phase change material comprises at least one of biomass-based graphene, copper nanowire foam and Fe3O4 modified biomass-based graphene. Bamboo powder is converted into few-layer graphene through sandwich microwave plasma technology, then is modified by Fe3O4 nanoparticles, is compounded with paraffin, and finally is packaged with copper nanowire foam to construct a synergistic structure of 'two-dimensional heat-conducting network-three-dimensional metal skeleton-nano light absorber'. The prepared composite phase change material has a photo-thermal conversion efficiency of 73.47%, a heat conductivity of 3.157 W·m ‑1 ·K ‑1 , a phase change enthalpy retention rate of >98% and no leakage. The composite phase change material is suitable for solar heat storage, intelligent building and electronic device heat management, and is produced in a green and low-cost manner through biomass waste resource utilization.

The invention discloses a polyamide composite material as well as a preparation method and application thereof. The polyamide composite material is prepared from the following components in parts by weight: 50 to 70 parts of polyamide resin, 8 to 15 parts of flame retardant, 0.5 to 2.5 parts of hindered amine light stabilizer, 0.5 to 2.5 parts of triazine light absorber and 0.05 to 2 parts of antioxidant, the flame retardant is at least one of a phosphorus-based flame retardant or a phosphorus-nitrogen-based flame retardant. The hindered amine light stabilizer is added to regulate the pH value of the polyamide composite material within a certain range, the situation that the composite light stabilizer reacts with the flame retardant to be consumed can be effectively avoided, and then the hindered amine light stabilizer is matched with the triazine light absorber, so that the aging resistance of the polyamide composite material is good, and the service life of the polyamide composite material is prolonged. Therefore, the flame retardant is prevented from being migrated and separated out from the system, so that the flame retardant grade and the electric leakage resistance of the light-aged polyamide composite material are kept good.

The application discloses a photosensitive resin composition and a preparation method thereof, a metal circuit and a manufacturing method and application thereof, and belongs to the technical field of electronic device materials. The preparation raw material of the photosensitive resin composition provided by the application comprises a functional monomer, an acrylic ester monomer, a crosslinking agent, a photoinitiator and a light absorber; the functional monomer is an ionic compound composed of a quaternary ammonium cation and a fluorosulfonylimide anion; and the quaternary ammonium cation comprises an ultraviolet light curing group. The photosensitive resin composition provided by the application can effectively improve the platability of the photosensitive resin composition, finally improves the accuracy of the size of a subsequent metal conductive pattern, and the stability of the conductivity. The application further provides a preparation method of the photosensitive resin composition, a preparation raw material, a metal circuit comprising the photosensitive resin composition, a manufacturing method of the metal circuit, and the application of the photosensitive resin composition and / or the metal circuit.

This invention belongs to the field of light-absorbing materials technology, and specifically relates to an organic small-molecule light absorber, its preparation method, and its applications. The molecular structure of the organic small-molecule light absorber is as follows: R1 is one of diphenylamine, carbazole, trifluoromethyl, methoxy, pyrrole, piperidine, furan, pyrazine, thiophene, and indole; R2 is one of triphenylamine, carbazole, triisopropylsilyne, trimethylsilyne, benzene, pyrrole, piperidine, furan, pyrazine, and thiophene. The preparation method involves mixing a diketone compound and an aromatic diamine compound in a solvent, followed by reflux heating under inert gas protection. This organic small-molecule light absorber can be used in interfacial solar-driven steam photothermal conversion, thermoelectric conversion, and cogeneration of hydropower.