20results about How to "High haze" patented technology

The invention discloses a PP resin foaming optical diffusion plate and a preparation method thereof.The diffusion plate comprises an upper layer, a middle layer and a lower layer, the upper layer and the lower layer are located on the two sides of the middle layer, the thickness ratio of the upper layer to the middle layer to the lower layer is 1: (7-9): 1, and the upper layer and the lower layer are the same in composition; the upper layer is prepared from the following components in parts by mass: PP resin, PP-g-MAH resin, copolymer microspheres, a flame retardant, an antioxidant, mineral oil, a light stabilizer, an ultraviolet light absorber and a whitening agent; the middle layer is prepared from the following components in parts by mass: GPPS resin, a foaming agent, an antioxidant, mineral oil, a light stabilizer, an ultraviolet light absorber and a whitening agent, and the diffusion plate is stable in overall structure, good in optical performance and low in manufacturing cost.

The invention relates to the technical field of liquid silicone rubber, in particular to high-refractive-index low-haze addition type liquid silicone rubber and a preparation method thereof, and the high-refractive-index low-haze addition type liquid silicone rubber is prepared from vinyl silicone oil, a catalyst, an inhibitor, a cross-linking agent, hydrophobic white carbon black, a white carbon black surface treating agent and the like. According to the method, by regulating and controlling the surface state of the white carbon black and the refractive index of the silicone oil, the addition type liquid silicone rubber with high refractive index, high light transmittance and low haze at the same time is realized, and the addition type liquid silicone rubber is good in mechanical property and fluidity, can adapt to continuous extrusion production, and is suitable for large-scale production. After vulcanization, the Shore A hardness is 50-53, the light transmittance is 94% or above, the haze is lower than 3%, the refractive index reaches 1.54 or above, and the polyurethane resin can be applied to the fields of optical devices, LED packaging and the like.

The invention discloses a coating type matte PET film and a preparation method thereof, and belongs to the technical field of films, the preparation method comprises the following steps: preparing an antistatic agent, preparing a delustering agent, preparing a coating liquid, and coating. The preparation of the coating liquid comprises the following steps: mixing a waterborne polyurethane dispersion liquid, an antistatic agent, a matting agent and a waterborne organic silicon defoaming agent, stirring at room temperature, adding an acrylic leveling agent, a wear-resistant agent and 3-aminopropyltrimethoxysilane, continuously stirring, adding polycarbodiimide, and continuously stirring to obtain the coating liquid; the prepared coating type matte PET film is high in haze, good in appearance, free of fisheyes and shrinkage cavities in the surface, uniform in haze, high in coating adhesive force, short in preparation time and high in water resistance.

This invention discloses a high-transparency, high-haze polypropylene material and its preparation method. The material is prepared by mass ratios of 93.2-98 parts polypropylene, 1-4 parts light diffusing agent, 0.2-0.6 parts α-nucleating agent, 0.2-0.6 parts β-nucleating agent, 0.2-0.4 parts antioxidant, 0.2-0.6 parts dispersant, and 0.2-0.6 parts light stabilizer. The nucleating agent is a compound of α-nucleating agent and β-nucleating agent in a mass ratio of 2-5:2-6. By adding specific proportions of α-nucleating agent and β-nucleating agent, this invention induces the polypropylene molecular chains to arrange themselves in a specific manner, thereby forming different spherical (α-crystal form) and rod-shaped (β-crystal form) crystal structures. This causes optical fibers that pass through the material surface and into the matrix to undergo multiple refractions before penetrating the matrix, thus increasing the path length of light within the material and enabling the material to maintain high transparency while exhibiting higher haze.

The invention relates to the technical field of optical films, and discloses a preparation method of a high-transmittance and high-fog coating with a microstructure on the surface, and the preparation method comprises the following steps: uniformly mixing a low-surface-energy initiator, a monofunctional acrylate monomer, a polyfunctional acrylate monomer, an acrylate prepolymer and a micromolecular initiator in an organic solvent to obtain light-cured glue; coating the light-cured glue on the surface of a light-transmitting base material, and drying to obtain a coated wet film; and the coating wet film is subjected to ultraviolet irradiation curing, and the high-transmittance and high-fog coating with the microstructure on the surface is obtained. The preparation method has the advantages that the raw materials are simple and easy to obtain, the composition is uniform, processing is convenient, and the equipment requirement is low, the prepared surface wrinkle coating film has high transmittance, high haze and good uniformity, and the surface wrinkle morphology and roughness can be controlled through processing process parameters such as heating time and illumination time.

The invention discloses a preparation method of an aluminum foil PI composite film with a high-density structure and the composite film prepared by the method. The composite film comprises three layers of structures: an upper layer is a thermosetting rigid polyimide composite film, a middle layer is an aluminum layer, and a lower layer is a thermoplastic flexible polyimide adhesive film; the upper layer is prepared from the following raw materials: 4, 4 '-diaminodiphenyl methane (PDA), 3, 3', 4, 4 '-biphenyl tetracarboxylic dianhydride (BPDA), graphene and silicon dioxide; the middle layer is an aluminum layer through vacuum sputtering and electroplating; the lower layer comprises the following raw materials: 3, 3 '-diaminodiphenyl sulfone (3, 3'-DDS), 1, 3-bis (4-aminophenoxy) benzene (1, 3, 4-APB) and 4, 4 '-oxydiphthalic anhydride (ODPA); the cable has the effects that the cable has excellent EMI shielding performance and good mechanical performance; the rigidity and stiffness of the film are effectively improved, the bonding effect is good, and hot-pressing bonding can be directly carried out.

The invention discloses a high-fog and high-light-transmittance quantum dot diffusion plate and a preparation method thereof. The high-fog and high-light-transmittance quantum dot diffusion plate comprises the following components in parts by mass: PEI resin, surface carboxylated quantum dot polymer composite microspheres, antioxidants, lubricants, light stabilizers, ultraviolet absorbers and EDC. The diffusion plate prepared by the application can simultaneously obtain high light transmittance and haze, and also by adding the component EDC, the EDC reacts with the carboxyl group on the surface of the microsphere to generate an amide compound to play a defect passivation role, thereby improving the recombination efficiency of the surface state excitons of the microspheres, so that the diffusion plate has fluorescent characteristics.

The present invention discloses an aging-resistant PETG shrink film for protecting thin-film solar cells, wherein the shrink film layer structure is a three-layer structure of A / B / A; wherein the raw materials of the A layer include PET modified with NPG and a functional masterbatch; and the raw materials of the B layer include PET, PETG, an antioxidant and a light stabilizer. The present invention effectively reduces the production cost while ensuring the efficacy, and the surface layer of the film has good printability and heat-sealing properties, while also achieving the characteristics of high light transmittance, low haze and high transparency of the film, and improving durability.

The application provides a high-haze PETG matt transfer film and a preparation method thereof, and relates to the technical field of matt transfer film preparation. The high-haze PETG matt transfer film comprises an upper surface layer, a core layer and a lower surface layer. The upper surface layer comprises the following raw materials in parts by mass: 40-60 parts of PETG, 1-3 parts of an antioxidant and 0.5-2 parts of an antistatic agent. The core layer comprises the following raw materials in parts by mass: 60-90 parts of PETG, 5-12 parts of a matt agent, 0.5-2 parts of a nucleating agent and 0.1-1 parts of an antioxidant. The lower surface layer comprises the following raw materials in parts by mass: 40-60 parts of PETG and 1-5 parts of an opening agent. The PETG matt transfer film prepared by the application has high haze.

The invention relates to an optical polyester film capable of preventing winding adhesion, which comprises a PET (Polyethylene Terephthalate) polyester base film and pre-coating layers coated on two surfaces of the PET polyester base film to form nano bulge structures, the pre-coating layer coating is prepared from the following components in parts by weight: 10 to 20 parts of PDMS-b-PCL diblock copolymer, 20 to 30 parts of waterborne polyurethane adhesive, 50 to 60 parts of waterborne polyester, 10 to 20 parts of waterborne polyolefin, 5 to 10 parts of waterborne cross-linking agent and solvent, and the solid content of the pre-coating layer coating is 3 to 3.5 percent. According to the invention, a special water-based resin material PDMS-b-PCL is added into the coating liquid of the pre-coating layer, and a nano convex structure is formed in the drying and curing process of the coating layer, so that an anti-adhesion effect is achieved, and the haze of the film is not improved.

The present invention relates to a method for preparing polylactic acid for producing a matte biaxially stretched film in the field of polylactic acid materials. A matting agent is added before the ring-opening polymerization reaction of polylactic acid and its copolymer, and then polylactic acid and its copolymer are prepared by ring-opening polymerization of lactide and comonomer under polymerization conditions. The polylactic acid and copolyester resin materials obtained after the polymerization have good film-making stability and excellent matting performance. The raw material components and their weight parts are as follows: 100 parts of lactide and comonomer, 0.3-5 parts of matting agent, 0.01-0.4 parts of initiator, 0.5-2 parts of antioxidant, and 0.1-3 parts of catalyst. The present invention adopts a method of physically blending a matting agent with a monomer raw material, improves the dispersibility of the matting agent, and the matting degree is convenient to control. Polylactic acid and its copolymer can obtain a film material with high haze, low gloss and good matting effect after biaxial stretching.

The application discloses PET matte master batches, a preparation method and application thereof, and belongs to the field of functional material modification. Barium sulfate is used as an extinction agent, the volume density of the barium sulfate is large, the barium sulfate can be well mixed with resin, the problem of layered mixing is solved, the color of the barium sulfate itself is white, and the color of the master batch is not affected. Moreover, the barium sulfate is compounded with organic modified layered silicate to produce a synergistic effect, the light transmittance is effectively improved, a high light transmittance, high haze and high gloss film product is successfully prepared, and the film product can be applied to high-end industries.

This application relates to the field of optical thin film technology, and more particularly to a diffusion film, its preparation method, and its application. A diffusion film is provided, comprising a substrate and a diffusion film disposed on any surface of the substrate. The diffusion film is prepared from components with the following mass percentages: 0.5%–10% diffusion particles and 90–99.5% solvent. The resulting diffusion film exhibits high haze, high clarity, and high light transmittance. The provided formula is simple, reduces the use of other components, is low in cost, facilitates the dispersion of diffusion particles, achieves ideal light diffusion effects, and is suitable for widespread use.

The application discloses a kind of polyamide 56 monofilament satisfying high strength, high haze, high transparency simultaneously and preparation method and application, belong to high polymer material processing field.The polyamide 56 monofilament of the application is prepared by secondary granulation, melt spinning with polyamide 56, high molecular weight polymer carrier and inorganic nano-particle as raw material.The polyamide 56 monofilament of the application satisfies high strength, high haze, high transparency simultaneously, strength is greater than or equal to 3.0 cN / dtex, light transmittance is greater than or equal to 80%, haze is greater than or equal to 70%, with wide application prospect.

The invention relates to the technical field of high polymer materials, in particular to a preparation method of a chemical-resistant, high-transparency and low-haze polymethyl methacrylate resin composition, which comprises the following steps: firstly, preparing phenyl-acryloyloxy organic silicon emulsion, then adding an emulsifier, an initiator and a mixed monomer containing acrylate and a grafting cross-linking agent, and uniformly stirring to obtain the chemical-resistant, high-transparency and low-haze polymethyl methacrylate resin composition. The preparation method comprises the following steps: preparing phenyl-acryloyloxy organic silicon modified acrylate copolymer emulsion, and then adding an initiator and methyl methacrylate to prepare phenyl-acryloyloxy organic silicon / acrylate / methyl methacrylate grafted copolymer emulsion.

The application belongs to the technical field of polymer materials, and particularly relates to a high-transmittance high-impact polypropylene composition and a preparation method thereof. The high-transmittance high-impact polypropylene composition is prepared from the following raw materials in percentage by weight: polypropylene resin: 59.2-89.85%; polyethylene resin: 10-25%; elastomer: 0-10%; light diffuser: 0-5%; nucleating agent: 0.05-0.5%; and antioxidant: 0.1-0.3%. The polypropylene resin is an impact copolymer polypropylene, the rubber phase content is 14-18%, and the ratio of the intrinsic viscosity of the rubber phase to the polypropylene resin is 1-1.2; the polyethylene resin is prepared from a metallocene catalyst; and the elastomer is a copolymer of propylene and ethylene. The prepared polypropylene composition has excellent physical properties such as high transmittance, high impact, high haze and high strength, and can meet the requirements of light-transmitting components in various fields; and meanwhile, the polypropylene composition has strong processing adaptability.

Provided in the present application are a PBAT resin composition, and a preparation method therefor and the use thereof. The PBAT resin composition comprises a PBAT resin and a cyclopentalkenylene conjugated-structure compound, wherein the mass content of the cyclopentalkenylene conjugated-structure compound in the PBAT resin composition is 0.05-100 ppm. The PBAT resin composition has a low color value and an excellent color stability while having a relatively high molecular weight and good mechanical properties; and the PBAT resin composition has an excellent hue and can fully meet the requirements of machine shaping such as film blowing, a low haze and a better clearness and transparency are obtained after film blowing, and the appearance and mechanical properties of the product are comprehensively improved. A resin composition containing the PBAT resin composition has good mechanical and physical properties, and can fully meet the use requirements of various film bag products.

The invention discloses a high-heat-resistant PBT foamed diffuser plate and a preparation method thereof. The high-heat-resistant PBT foamed diffuser plate comprises the following components by weight, namely, PBT resin, PMMA-PEI polymer microspheres, silane coupling agent, sodium citrate, anhydrous ethanol, antioxidant, ultraviolet absorber, light stabilizer, mineral oil, brightener, flame retardant and foaming agent. PBT resin is selected as a diffuser plate substrate to ensure that the diffuser plate has relatively high heat resistance. Meanwhile, a new PMMA-PEI polymer microsphere is provided as a light diffuser, so that the prepared diffuser plate can obtain high light transmittance and haze while greatly improving the heat resistance of the diffuser plate. Sodium citrate and silane coupling agent can be added to enhance the interface compatibility of PMMA-PEI polymer microspheres and PBT resin substrates. A small amount of mineral oil is added to make the PMMA-PEI polymer microspheres disperse more evenly in the system. The diffuser plate prepared by the above formula has high heat resistance and good optical properties.

This invention relates to the field of nanofiber membrane technology, and discloses an anti-glare multifunctional flexible thin film material, its preparation method, and its application. The preparation method of the anti-glare multifunctional flexible thin film material includes the following steps: selecting a spinnable polymer material with a refractive index matching that of the matrix resin; placing the spinnable polymer material in an organic solvent system to prepare spinnable polymer solutions of different concentrations as spinning precursor solutions; and using electrospinning technology to prepare an anti-glare multifunctional flexible thin film material. When the film is spun, it has high transparency and high haze, achieving the anti-glare function. At the same time, it increases the hydrophobic angle on one side of the fiber membrane, making the nanofiber membrane superhydrophobic. The final composite membrane has the characteristics of high transparency, high haze, self-adhesion, and superhydrophobicity.

The invention provides a monomolecular difunctional modifier and a preparation method thereof, and a modified inorganic layered material, a high-barrier water-based coating composition and a high-barrier film applying the same. The modified inorganic layered material has the length-diameter ratio of more than or equal to 200, the turbidity of 1wt% water dispersion liquid of less than or equal to 150NTU and no sedimentation after standing for more than or equal to 120 days, and the comprehensive performance of the modified inorganic layered material is obviously superior to that of a traditional step-by-step modified product; the modified inorganic layered material can construct an efficient and compact'maze 'barrier structure in a coating under the low addition amount of 1-5wt%, so that the high-barrier film simultaneously has excellent gas barrier property, high light transmittance and low haze, the water vapor transmission rate (WVTR) of the high-barrier film is less than or equal to 0.66 g / (m.day), the oxygen transmission rate (OTR) of the high-barrier film is less than or equal to 0.51 cc / (m.day), the light transmittance of the high-barrier film is greater than or equal to 90.1%, and the haze of the high-barrier film is less than or equal to 3.4%.