7results about How to "Reduce light scatter" patented technology

This invention relates to the field of multilayer curable base film technology, specifically to the online coating of polyester optically curable base films and its preparation method. This invention overcomes the problem in existing technologies where the adhesion and optical performance of the curable base film cannot be simultaneously achieved. First, this invention obtains core-shell structured functional particles by modifying in-situ polymethyl methacrylate with nano-silica; second, it obtains modified PET by melt blending optical-grade PET chips; finally, it melts the functional particles and modified PET to obtain an anti-adhesion masterbatch, prepares a composite base film through three-layer co-extrusion and biaxial stretching, coats it with a functional coating liquid, cures it stepwise to form a curing layer, and then heat-sets it to obtain the optically curable base film. Through base film modification, functional particle core-shell design, three-layer co-extrusion structure, and the synergistic effect of coating and process, this invention produces a polyester optically curable base film that combines high optical performance and good coating adhesion, applicable to release protection in the electronics field, decoration in the home appliance field, and other fields.

The invention discloses plastic capable of transmitting infrared light and a preparation method thereof, and belongs to the field of high polymer material engineering. The plastic capable of transmitting infrared light, prepared by the invention, comprises the following raw material components in parts by mass: 100 parts of carrier resin, 20-30 parts of modified infrared transparent filler and 1-2 parts of auxiliaries, wherein the carrier resin is obtained by crosslinking an ethylene-vinyl acetate copolymer, polyethylene and vinyl cyclosiloxane; the vinyl cyclosiloxane comprises 1, 3, 5-trivinyl-1, 3, 5-trimethyl cyclotrisiloxane and tetramethyl tetravinyl cyclotetrasiloxane, and the vinyl cyclosiloxane comprises 1, 3, 5-trivinyl-1, 3, 5-trimethyl cyclotrisiloxane and tetramethyl tetravinyl The modified infrared transparent filler is obtained by modifying the infrared transparent filler with 1, 1, 3, 3-tetramethoxy-1, 3-dimethyl disiloxane; the infrared transparent filler is obtained by compounding barium fluoride and magnesium fluoride; the plastic capable of transmitting infrared light, prepared by the invention, is relatively good in mechanical property and high in infrared transmittance.

The invention discloses a nano-zirconia dispersion liquid and a preparation method thereof, an optical coating liquid, an optical film and application thereof, and relates to the technical field of materials. The nano zirconium oxide dispersion liquid comprises modified nano zirconium oxide and a first organic solvent, and a modifier of the modified nano zirconium oxide comprises a coupling agent and polymer resin; wherein the polymer resin is poly (isobornyl acrylate-co-polyethylene glycol methacrylate). A flexible segment of polyethylene glycol methacrylate in the polymer resin provides better flexibility for the optical film, and a bridge ring structure of isobornyl acrylate forms a net structure with high crosslinking density in a film forming process and reduces internal stress in a photocuring process, so that better hardness performance is provided for the optical film; the nanoscale particle size zirconium oxide significantly improves the dispersion uniformity, reduces light scattering, improves the light transmittance and light transmission uniformity of the optical film, and reduces the haze of the film. And the method is expected to be popularized and applied in the frontier fields of high-precision optical systems, flexible display and the like.

The present disclosure provides a transparent elastic electronic skin of a wearable optoelectronic device and a preparation method thereof. The method comprises the following steps: obtaining an electrode patterned carrier; electrospinning an elastic polymer spinning solution on an electrode pattern layer of the electrode patterned carrier to obtain an elastic fiber membrane-electrode patterned carrier; immersing the elastic fiber membrane-electrode patterned carrier in water or an ethanol solution to obtain a conductive elastic fiber precursor membrane A; performing spin coating on the conductive elastic fiber precursor membrane A, and then drying and curing to obtain a conductive elastic fiber precursor membrane B; and performing selective wetting operation on the electrode pattern layer of the conductive elastic fiber precursor membrane B by using a liquid conductive metal to obtain the transparent elastic electronic skin of the wearable optoelectronic device. The transparent elastic electronic skin prepared by the method has high light transmittance, high mechanical elasticity, excellent air and moisture permeability, stable conductivity and suitable adhesion, so as to better meet the long-term dynamic high-precision wearing requirements.

This invention relates to the field of toughening agent technology, specifically a high-transparency, cold-resistant toughening agent for polyester materials and its preparation method. By weight, it comprises 50-90 parts PET, 10-40 parts PETG, 1-10 parts high-transparency TPEE, 1-5 parts TPEE-g-MAH, 0.3-6 parts composite plasticizer, 0.1-0.5 parts nucleating agent, and 0.1-0.5 parts antioxidant. The preparation method includes: raw material drying, additive premixing, mixing the base material and additives, melt extrusion, and cooling pelletizing. This invention, through the synergistic effect of high-transparency TPEE and the specific compatibilizer TPEE-g-MAH, achieves nanoscale dispersion and strong interfacial bonding while solving the technical problem of "toughening inevitably reducing transparency" in traditional toughening materials. This results in a material with a low-temperature impact strength of 110-150 kJ / m² at -30°C, while maintaining a light transmittance ≥90% and a haze ≤2%. It is particularly suitable for PET products requiring high transparency and low-temperature impact resistance.

This invention relates to a method for fabricating a light-emitting element based on an ultra-smooth interface composite functional transparent conductive layer, comprising the following steps: (1) providing a substrate and performing epitaxial growth; (2) growing a composite functional layer with a thickness of 5-10 nm on the surface of the epitaxial structure; (3) polishing the composite functional layer to ensure that the surface roughness Ra < 0.2 nm; (4) defining the photonic crystal pattern and etching photonic crystal pre-holes in the composite functional layer; (5) depositing the composite transparent conductive layer: firstly, using an atomic layer deposition system (ALD), filling the photonic crystal pre-holes with an ITO material of an indium-tin weight ratio of 90:10, and then growing a second ITO layer with a thickness of 30 nm and an indium-tin weight ratio of 95:5 as a current diffusion layer by sputtering or ion beam deposition, and finally performing high-temperature thermal annealing; this invention optimizes the light extraction efficiency and current diffusion performance of the device by combining fundamental planarization of the substrate interface with the precise fabrication of nanophotonic structures.

The present application relates to a pre-coating solution for optical film, a pre-coated optical film and application, wherein the solution comprises a water-based polyurethane resin, the chain extender used by the water-based polyurethane resin comprises at least a carboxylic acid derivative containing amide and unsaturated double bond, and the carboxylic acid derivative containing amide and unsaturated double bond is selected from at least one of N-(2,3-dihydroxypropyl) maleic amide acid and N-(2,3-dihydroxypropyl) acrylamide. The pre-coating layer formed on the surface of the film substrate by using the solution can simultaneously realize stable adhesion in high temperature and high humidity environment, excellent optical performance, high compatibility with various functional coatings and online production adaptability; moreover, the main chain of the pre-coating layer is mainly ether bond / amide bond, has no easy hydrolysis structure, is long-term wet heat stable and scratch-resistant, and can be adapted to various downstream composite processing processes.