38results about How to "Low haze" patented technology

The invention discloses an optical film, a preparation method thereof and a display device, and relates to the technical field of optical functional films. The optical film comprises a base film layer and an antistatic coating arranged on the surface of at least one side of the base film layer. The antistatic coating comprises the following raw material components: water-dispersible polyester resin, water-soluble resin, a cross-linking agent and an antistatic agent; the antistatic agent is obtained by compounding a single-walled carbon nanotube modified with a hydrophilic group and polyaniline acid, the antistatic agent comprises an inner core and a coating layer at least partially coating the inner core, the inner core comprises the single-walled carbon nanotube modified with the hydrophilic group, and the coating layer comprises the polyaniline acid. According to the optical film, the single-walled carbon nanotubes and the polyaniline acid form a composite conductive structure, and then the composite conductive structure is crosslinked with the water-soluble resin and the crosslinking agent to form a three-dimensional conductive network structure, so that the optical film obtains lasting and efficient antistatic performance with extremely low environmental humidity dependence on the premise of keeping high light transmittance, low haze and good coating adhesiveness.

This invention discloses an aqueous dispersion of a polyhydroxyalkanoate-grafted ethylene-acrylic acid copolymer with a self-emulsifying core-shell structure, its preparation method, and its recyclable paper packaging, belonging to the field of reactive modification of polymer materials and green packaging technology. This invention employs in-situ reactive extrusion technology to construct stable microparticles with a hydrophobic polyhydroxyalkanoate core and a hydrophilic ethylene-acrylic acid copolymer salt as the shell, overcoming the industry challenge of poor compatibility of bio-based materials. The aqueous dispersion requires no external emulsifier, achieving the same excellent barrier and heat-sealing effects with a lower coating weight, significantly reducing usage costs. Its unique alkali-induced swelling mechanism endows the coating with intelligent peeling properties, achieving efficient separation of the coating and fiber during resizing, greatly improving the purity of recycled fibers.

The invention provides a coating with optical permeability and a preparation method thereof. The coating with optical permeability is prepared from the following raw materials in parts by mass: 25 parts of water-based acrylate copolymer emulsion, 25 to 35 parts of water, 0.8 to 1.5 parts of transparent functional particles, 16 to 20 parts of functional modified inorganic filler, 5.5 to 7.5 parts of boric acid ester-silanol-hydroxyl three-function cross-linked gel precursor solution, 0.2 to 0.5 part of thickening agent, 0.2 to 0.4 part of defoaming agent, 0.5 to 1 part of dispersing agent and 0.1 to 0.3 part of preservative. 0.2 to 0.5 part of an organic amine alcohol compound; the transparent functional particles comprise at least one of glass sand and cross-linked polymethyl methacrylate microspheres; the functional modified inorganic filler comprises at least one of amino silane modified snowflake white quartz sand and amino silane modified calcined sand white marble. The coating with optical permeability is suitable for the field of indoor and outdoor decoration.

One embodiment of the present invention relates to an optical film for being disposed in a display device, and a backlight unit comprising the optical film, the optical film comprising a base film, a pattern layer disposed on the base film and comprising a curved portion, and a coating layer disposed on the pattern layer, the coating may include a plurality of particles disposed continuously on at least a portion of the curved portion of the pattern layer, and a filler material disposed along the curved portion of the pattern layer and filling spaces between the plurality of particles.

The invention relates to a photocuring composition, a hardened film and a preparation method and application of the hardened film. The photocuring composition comprises the following components: a urethane acrylate oligomer, an acrylate monomer, a reactive ultraviolet absorbent and a photoinitiator. A reactive ultraviolet absorbent is introduced into the hardened film, and is chemically bonded in a hardened layer polymer network through a UV photocuring technology, so that the problem of migration and precipitation of the ultraviolet absorbent is fundamentally solved.

The application relates to the technical field of glass, in particular to a manufacturing method, system and application of heat-bending-free 3D cover plate glass. The method utilizes laser to construct an induced prestress field on a glass substrate to release 50%-85% of target strain; then, single-side polishing fine adjustment is carried out, the polishing surface to be polished is divided into a center, an edge and a corner area, and stepped pressure is applied to compensate for the removal rate difference; a pressure buffer zone is dynamically generated at the junction of the areas, and the pressure is adjusted based on a smoothing algorithm to ensure that the first and second derivatives are continuous and the step mutation is eliminated. Through light-mechanical coupling stress regulation and dynamic continuous control, the application completely eliminates edge collapse and vibration marks, realizes micron-level curvature shaping, improves the glass surface type precision, optical uniformity and structural strength, and efficiently manufactures high-quality 3D cover plates without high-temperature heat bending.

The invention discloses a polymerizable compound containing a chromophoric group for a reverse wavelength dispersion phase difference film and a liquid crystal composition thereof. According to the compound, benzothiazole is used as a chromophoric nucleus, strong electron-withdrawing trifluoromethyl is introduced to a specific position, and a side chain is connected through a thioether bond, so that high reverse wavelength dispersity, extremely high solubility and excellent compatibility with a conventional positive dispersion monomer are synchronously realized. After a liquid crystal composition containing the compound is subjected to orientation coating and photopolymerization, a high-transparency reverse wavelength dispersion phase difference film which is extremely low in haze, uniform in orientation and small in shrinkage stress can be prepared, the contradiction between the optical performance of an existing material and the stability of a film forming process is thoroughly solved, and the high-transparency reverse wavelength dispersion phase difference film is suitable for high-end OLED and Mini / Micro-LED wide-color-gamut displays.

This invention discloses a single-layer soft dental membrane and method for dental treatment or oral protection, belonging to the field of dental materials technology. The membrane is made of thermoplastic polyurethane elastomer (TPU) with a microphase separation structure and a hydrophilic modified layer containing polydopamine and hydrophilic polymer on its surface. The membrane has a Shore hardness of 75A-90A, a tensile strength of 15-50MPa, an elongation at break ≥500%, and a thickness of 0.5-6.0mm. The preparation method includes TPU drying, extrusion molding, plasma treatment, and hydrophilic coating impregnation reaction. The membrane of this invention has flexibility, durability, antibacterial properties, and high transparency, and its comprehensive performance is superior to that of existing EVA membranes. It can be used in dental whitening trays, sports mouthguards, or oral ulcer protection patches.

The invention discloses an internally-added non-silicon release master batch, a preparation method and a release film with nanoscale roughness, preparation raw materials comprise PET resin I, a non-silicon release agent composition and an antioxidant, and the non-silicon release agent composition comprises polyester wax and oxidized polyethlene wax. According to the invention, polyester wax and oxidized polyethlene wax are compounded, and a release functional phase which is uniformly dispersed in nanoscale and has a stable interface is constructed in a PET matrix through a unique molecular synergistic effect and a processing technology matched with the polyester wax and the oxidized polyethlene wax, so that the fundamental contradiction that the surface of an internally added release film is rough and the release function is difficult to consider at the same time is solved; and meanwhile, silicon migration pollution is fundamentally eradicated, the process is simplified by utilizing an internal addition process, and recycling is facilitated.

The application provides a self-repairing silicone resin and a preparation method thereof, OCA optical glue containing the self-repairing silicone resin and application of the self-repairing silicone resin. The self-repairing silicone resin contains a disulfide bond and a mercapto group in a molecular structure. The content of the disulfide bond in the self-repairing silicone resin is greater than 0.6 mmol / g. The self-repairing silicone resin is used for preparing OCA optical glue. While ensuring high light transmittance, low yellowing and good mechanical properties of the OCA optical glue, the self-repairing silicone resin can improve the initial adhesion of the OCA optical glue, and can also endow the OCA optical glue with a self-repairing function and improve the repair efficiency.

Examples relate to thin films, transparent laminates, applications as cover films, and multilayer electronic devices incorporating the thin film, which possess excellent optical properties such as refractive index, haze, and yellowness, as well as excellent mechanical properties. The thin film includes an elastic layer with a refractive index of 1.48 to 1.58 and a low-temperature damage index (the difference between tensile modulus and tensile strength at a specific temperature), wherein the low-temperature damage index of the elastic layer at -40°C is below 1300 MPa.

The present invention relates to a uniaxially oriented polyethylene film, comprising multiple layers including an inner surface layer (I), an outer surface layer (O) and a core layer (C), wherein at least one of the multiple layers is made of a composition comprising from 70 to 100 wt.% of a multimodal high density polyethylene (HDPE) polymer component (PE1), based on the total weight of the respective layer composition, the PE1 component having: a) a melt flow rate MFR2 of from 0.1 to 2.0 g / 10min; b) a melt flow rate MFR5 of from 1.0 to 5.0 g / 10min; c) a melt flow rate ratio (MFR21 / MFR2) of from 30 to 90, the melt flow rates being determined according to ISO 1133; d) a density of more than or equal to 950 kg / m3; and e) a molecular weight distribution (Mw / Mn) of from 8 to 20, determined according to ISO 16014; and wherein the polyethylene film has a tensile modulus (1% secant) in machine direction (MD) of at least 1500 MPa, determined according to ASTM D882, and a tensile strength in machine direction (MD) of at least 160 MPa, determined according to ISO 527-3.

Provided is a surface protective film capable of achieving thickening of an adhesive layer, capable of exhibiting light peeling, and capable of achieving low haze. Also provided are an optical member and an electronic member to which such a surface protective film is attached. The surface protective film of the embodiment of the present application includes a urethane-based adhesive layer composed of a urethane-based adhesive formed from a urethane-based adhesive composition including a urethane prepolymer P, a polyol A, and a polyfunctional isocyanate compound B, the weight ratio of P to A being P:A=(50-99):(1-50), the polyol A including a first polyol A1 having a number average molecular weight Mn of 5000-20000 and a second polyol A2 having a number average molecular weight Mn of 300-4999, the weight ratio of A1 to A2 being 1.0≤(A1 / A2)≤3.5.

This invention relates to the field of luminescent polymer materials technology, and discloses a laminated glass interlayer and laminated glass, comprising the following components by weight: 100 parts polyvinyl butyral resin; 30 to 50 parts plasticizer; 0.05 to 1.5 parts photosensitizer; 0.6 to 4.5 parts annihilation agent; and appropriate amounts of maleic anhydride graft compatibilizer and hydrophobic fumed silica. The photosensitizer absorbs short-wavelength light and induces intersystem crossing, non-radiatively transferring triplet energy to the annihilation agent; two triplet annihilation agent molecules collide, merging their energy to generate singlet excitons and radiate fluorescence, completing the triplet-to-triplet annihilation upconversion mechanism. This invention utilizes a plasticized microenvironment to achieve random dispersion of luminescent guest molecules, avoiding physical phase separation and light scattering caused by large-scale aggregation, thereby overcoming the solid-state concentration quenching phenomenon and enabling laminated glass products to achieve both wavelength conversion function and high light transmittance and purity.

The application discloses an intrinsic flame-retardant PMMA resin material, a flame-retardant resin composition, a preparation method and application, and belongs to the technical field of flame-retardant modification of PMMA resin materials.The intrinsic flame-retardant PMMA resin material comprises the following raw materials: 70-95 parts of MMA, 5-30 parts of a halogen-free flame retardant and 0.01-0.05 parts of an initiator; meanwhile, in order to improve the flame-retardant effect, a transparent flame retardant is added to the above system to obtain a flame-retardant resin composition material.The intrinsic flame-retardant PMMA resin material is prepared by introducing a flame-retardant monomer with the structure of 'MMA+ flame-retardant group' and copolymerizing with MMA, the intrinsic flame-retardant PMMA resin material improves the flame-retardant performance while maintaining the good light transmission performance and mechanical performance of the PMMA resin itself; meanwhile, the transparent flame retardant is introduced into the system, the two kinds of flame retardants produce a compounding synergistic effect, and the prepared flame-retardant resin composition material has excellent flame-retardant performance, light transmission performance and mechanical performance.

The application provides a low-temperature laminated co-extrusion adhesive film and a preparation method and a photovoltaic module, and relates to the technical field of photovoltaic devices.The low-temperature laminated co-extrusion adhesive film comprises a laminated EVA film layer and a TPO film layer, and the EVA film layer and the TPO film layer are fused at the interface part; the content of vinyl acetate in the EVA film layer is 15-40%, and the crosslinking degree of EVA is not less than 65%; the raw material for forming the TPO film layer comprises an ethylene-alpha olefin copolymer; the melt index of the ethylene-alpha olefin copolymer is 0.5-10 g / 10 min, and the melting point is 50-115 DEG C; the light transmittance of the low-temperature laminated co-extrusion adhesive film for light with a wavelength of 380-1100 nm is greater than 88%. The low-temperature laminated co-extrusion adhesive film provided by the application not only can realize low-temperature crosslinking, but also has high bonding performance with a base material and long-term anti-creep performance.

The application provides a kind of polyamide and its preparation method and application, the polyamide includes diamin residue and diacid residue;The diamin residue includes 2,2'-dimethyl-4,4'-methylene bis (cyclohexylamine) residue;The diacid residue includes 1,4-cyclohexane dicarboxylic acid residue and 1,12-dodecyl diacid residue;With the total molar amount of diacid residue as 100mol%, the molar percentage content of 1,4-cyclohexane dicarboxylic acid residue is 14~29mol%.The polyamide has excellent UV aging resistance and toughness, while it can also maintain high light transmittance and low haze, can meet the strict demand of high-end glasses market for material long-term beauty and durability.

The application discloses a PLA copolymer polycarbonate biaxial stretching film and a preparation method thereof, and belongs to the technical field of high polymer materials. The film is prepared from 100 parts of PLA copolymer polycarbonate, 0.3-0.6 parts of a chain extender, 0.5-1.0 parts of an anti-hydrolysis agent, 0.1-0.2 parts of a lubricant, 0.1-0.3 parts of a primary antioxidant and 0.2-0.4 parts of a secondary antioxidant through melt extrusion, biaxial stretching and heat setting. The film has high heat resistance, high light transmittance, low haze and excellent processing stability through unique molecular structure design, synergistic system of additives and fine biaxial stretching process, the tensile strength retention rate of the film at 80 DEG C is greater than or equal to 80%, and the film can be used in the fields of optics, high-barrier packaging and industry.

The application belongs to the technical field of high polymer materials, and particularly relates to a heat-resistant blister packaging box and a preparation method thereof. According to weight parts, the heat-resistant blister packaging box comprises the following raw materials: 100 parts of polylactic acid, 4-8 parts of heat-resistant stabilizer, 1-3 parts of nucleating agent, 0.5-1 parts of chain-extending compatibilizer, 0.1-0.5 parts of antioxidant, and 0.1-0.3 parts of release agent. The application designs a multifunctional heat-resistant stabilizer with an aromatic imide-sulfone-siloxane structure, and constructs a synergistic crystallization system with a phenyl zinc phosphonate nucleating agent, and cooperates with a segmented temperature control rapid heat setting process. The heat distortion temperature of the obtained blister packaging box can reach 93.1 DEG C, the light transmittance is kept above 89.5%, the haze is below 3.5%, the forming cycle is shortened to 6-10 seconds, and there is no small molecule migration risk, so that the industrial production needs of the heat-resistant transparent packaging for food contact are met.

The present application belongs to the technical field of polymer, and particularly relates to a transparent thermoplastic elastomer composition with controllable hardness, comprising polymer A and polymer B; the polymer A is SEBS, wherein the EB segment is a hydrogenated diene polymer segment with a random structure and / or a 1,2 structure content greater than or equal to 60%; the polymer B is a polymer with full hydrogenation of aryl and olefin groups in SBS. The present application also includes preparation and application of the composition. The composition can achieve high light transmittance, low haze and controllable hardness effect.

The utility model discloses a kind of frosted sunglasses, with frosted base layer, frosted base layer is in the outside surface of lens base layer by injection molding and is formed frosted layer integrally, the roughness Ra of the outside frosted layer of frosted base layer is controlled in 0.8-1.5 microns range, a layer REVO film layer is formed in the outside vacuum evaporation of frosted base layer, a layer of antireflection film layer is formed in the inside vacuum evaporation of frosted base layer, a layer of hard wear-resistant layer is formed on the surface of REVO film layer and antireflection film layer each, a layer of waterproof layer is formed in the surface vacuum evaporation of two layers of hard wear-resistant layer respectively, a layer of oil-proof layer is formed in the surface vacuum evaporation of two layers of waterproof layer respectively.The utility model under the premise of keeping frosted texture, effectively reduce lens haze, provide good visual experience for user, and frosted texture is stable, suitable for doing high degree of lens, optical performance is excellent, and service performance is reliable, luminousness reaches 13.42%, reflectivity reaches front 12.67%, back 3.64%, haze is less than or equal to 1.5%, and definition is greater than or equal to 28.

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 a high-transparency and high-barrier paper-based packaging material based on in-situ layered construction and a preparation method of the high-transparency and high-barrier paper-based packaging material, and belongs to the technical field of pulping, papermaking and paper-based functional materials. The method mainly comprises the following steps: 1, preparing carboxymethyl fibers; 2, preparing the TEMPO oxidized nano cellulose; 3, preparing raw paper of the high-transparency fiber supporting layer; 4, preparing a hydrogel precursor solution; 5, preparing a mixed coagulating bath; and 6, preparing the high-transparency and high-barrier paper-based packaging material. The invention provides a technical concept of'in-situ layered construction ', a high-transparency and high-strength fiber supporting layer is constructed through plant fibers, CM-fibers and TEMPO oxidized nanofibers, and the high-transparency and high-strength fiber supporting layer is prepared by utilizing the principles of ionic crosslinking and solvent exchange. A hydrogel optical interface layer for filling matrix pores and a compact surface barrier functional film layer are synchronously constructed on the surface of the fiber supporting layer, and finally the high-transparency and high-barrier paper-based packaging material constructed based on in-situ layering is prepared.

The object of the present invention is to provide a bonding body that suppresses deformation caused by heating during bonding, facilitates re-peeling of the bonding body, suppresses protein adsorption, and obtains a low-haze bonding body, and a method for manufacturing the same. The bonding body of the present invention is a bonding body [3] formed by bonding at least one molded body [1] via a bonding layer [2] having a material composition different from that of the molded body. The bonding layer [2] contains a softener [5] and 100 parts by weight of a cyclic olefin resin [4]. The content of the softener [5] in the bonding layer [2] is 6 to 99 parts by weight of the softener [5] relative to 100 parts by weight of the cyclic olefin resin [4]. The haze of the bonding layer [2] is 1.0 or less.

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 application belongs to the field of resin synthesis, and particularly relates to a synthesis method of polyvinyl butyral resin. The raw materials for preparing the PVB resin in the application include PVA, n-butyl aldehyde and glyoxal, and do not include emulsifiers and alkali metal inorganic salts. The PVB resin prepared by improving the feeding mode has excellent penetration resistance, the PVB film prepared from the PVB resin has low haze and high molecular weight, and is particularly suitable for application on automobile glass.

The invention discloses an OCA (Optical Clear Adhesive) full-lamination optical adhesive and a preparation method thereof, belongs to the technical field of optical adhesives, and aims to provide an optical adhesive with high optical performance, excellent flexibility and self-repairing capability. The optical cement is prepared by single-sided ultraviolet light gradient initiation curing of a prepolymer system consisting of a soft monomer, a hard monomer, a functional monomer, a dynamic cross-linking agent, a photoinitiator, an ultraviolet light absorber and a silane coupling agent. Through a light intensity depth attenuation effect caused by competitive light absorption of the ultraviolet light absorber, a gradient network structure of which the crosslinking density is continuously decreased progressively along the thickness direction is formed in situ in a single adhesive layer; a disulfide bond is introduced into a polymer network through a dynamic cross-linking agent, so that the material is endowed with self-repairing and stress relaxation functions.

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 invention relates to the technical field of high polymer material assistants, in particular to a preparation method and application of an anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The anti-reflection polypropylene nucleation assistant.The preparation method has the advantages that the anti-reflection polypropylene nucleation assistant.The anti-reflection the surface lipophilicity is improved, the compatibility with a polypropylene matrix and a sorbitol nucleating agent is remarkably improved, and the problem of poor dispersity is solved; the sorbitol nucleating agent provided by the invention and an inorganic nanoparticle compounded system generate a synergistic effect, and compared with a single nucleating agent, the sorbitol nucleating agent provided by the invention can reduce fog of a polypropylene product, improve impact strength and improve flexural modulus; the composite nucleating agent provided by the invention can stably play a role at 180-200 DEG C, compared with a traditional nucleating agent, the processing temperature is reduced, the processing energy consumption is reduced, and the composite nucleating agent has a wide application prospect.

The application provides a high-water-resistance optical film and a polarizing plate comprising the same, the high-water-resistance optical film comprising a base film, a water-resistance layer and a bondable layer; the structure of the high-water-resistance optical film comprising the water-resistance layer, the first bondable layer, the base film and the second bondable layer which are sequentially stacked, or the water-resistance layer, the base film and the second bondable layer which are sequentially stacked; the surface of the water-resistance layer having uniform and orderly arranged nano-protrusions and microporous structures. The high-water-resistance optical film has excellent hydrophobicity, and the water-resistance layer can efficiently absorb ultraviolet radiation, effectively preventing the problems of aging, yellowing, embrittlement and the like of the optical film caused by ultraviolet irradiation, and can be applied to the polarizing plate, greatly improving the service life of the polarizing plate.