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3419 results about "Resin composite" patented technology

Method for chemically modifying inorganic filler with graphene oxide, product and application

The invention discloses a method for chemically modifying inorganic filler with graphene oxide and a product. The method comprises the following steps: performing surface hydroxylation treatment and silane coupling agent treatment on the inorganic filler; maintaining the pH of a graphene oxide solution at 5.8-6.0 with an MES buffer solution; sequentially adding EDC and NHS, and performing ultrasonic treatment for 1-3 hours; adding the treated inorganic filler, and performing an amidation reaction at room temperature; and after the reaction, filtering, washing and drying to obtain the graphene oxide modified inorganic filler. The invention also discloses a method for preparing an inorganic filler/epoxy resin composite by use of the product. The process flow of the method disclosed by the invention is simple and environmentally friendly; the GO is connected to the surface of the inorganic filler by a chemical modification process, and the firm covalent bond combination between the GO and inorganic particles is generated, so that the interface adhesiveness and mechanical strength between the inorganic filler and the polymer are enhanced, and a new idea is provided to the modification of an inorganic filler surface and the preparation of a high-performance composite.
Owner:UNIV OF JINAN

Composite particle for dielectrics, ultramicroparticulate composite resin particle, composition for forming dielectrics and use thereof

The dielectric-forming composition according to the invention is characterized by consisting of: composite particles for dielectrics in which part or all of the surfaces of inorganic particles with permittivity of 30 or greater are coated with a conductive metal or a compound thereof, or a conductive organic compound or a conductive inorganic material; and (B) a resin component constituted of at least one of a polymerizable compound and a polymer. In addition, another dielectric-forming composition according to the invention is characterized by containing: ultrafine particle-resin composite particles composed of (J) inorganic ultra fine particles with the average particle size of 0.1 mum or smaller, and (B) a resin component constituted of at least one of a polymerizable compound and a polymer, wherein part or all of the surfaces of the inorganic ultrafine particles (J) are coated with the resin component (B), and the ultrafine particle-resin composite particles contain 20% by weight or more of the inorganic ultrafine particles (J); and inorganic particles with the average particle size of 0.1 to 2 mum and permittivity of 30 or greater, or inorganic composite particles in which a conductive metal or a compound thereof, or a conductive organic compound or a conductive inorganic material is deposited on the part or all of the surfaces of the inorganic particles.
Owner:JSR CORPORATIOON

Resin composite material and its preparation method and use

ActiveCN102952327AAdjustable longitudinal lengthMeet the length requirementPorosityPolymer science
The invention belongs to the technical field of polymers and discloses a resin composite material and its preparation method and use. The resin composite material comprises: by weight, 70 to 100 parts of one or more thermoplastic resins, 0 to 5 parts of one or more anti-oxidants, 0 to 5 parts of one or more fire retardants, 0 to 10 parts of one or more compatibilizers, 0 to 3 parts of one or more weather-resistant agents, 0 to 5 parts of one or more release agents and 0 to 2 parts of one or more assistants. The preparation method of the resin composite material comprises the following steps of fully mixing the raw materials in an intermediate-speed mixer according to the ratio for 3 to 7min, adding the mixture into an extruder, and carrying out extrusion cutting to obtain the resin composite material. A method for preparing a natural fiber/resin composite material prepreg tape from the resin composite material comprises the following steps of preparing natural fibers into a cord fabric, carrying out drawing, compaction and heating drying dehydration, carrying out pre-dipping of the resin composite material at a laminating extruder, carrying out gum dipping, carrying out cooling and carrying out wrapping-up. The prepreg tape obtained by the method has low porosity and high mechanical strength.
Owner:SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD

High thermal conductivity resin composition and high thermal conductivity coated metal foil board manufactured by using same

The invention relates to a high thermal conductivity resin composition and a high thermal conductivity coated metal foil board manufactured by using the same. The high thermal conductivity resin composition comprises the following components of: epoxy resin, at least one phenoxy resin or carboxy terminal butadiene acrylonitrile, biphenyl phenolic resin and a high thermal conductivity packing material, wherein the biphenyl phenolic resin has the structure shown in the specification. The high thermal conductivity coated metal foil board manufactured by using the high thermal conductivity resin composition comprises a high thermal conductivity adhesive film and metal foils coated on both sides of the high thermal conductivity adhesive film, wherein the high thermal conductivity adhesive film comprises a carrier film and the high thermal conductivity resin composition coated on the carrier film, and the carrier film is a polyester film or a polyimide film. The high thermal conductivity coated metal foil board comprises a resin composite metal foil and a metal foil or another resin composite metal foil coated on the previous resin composite metal foil, and the resin composite metal foil comprises a metal foil and the high thermal conductivity resin composition coated on the metal foil.
Owner:GUANGDONG SHENGYI SCI TECH

Halogen-free phosphorus-containing flame-retardant polyimide resin composition and preparation method thereof

The invention relates to a halogen-free phosphorus-containing flame retardant polyimide resin composite, which is characterized by comprising the following components in part by weight: 150 to 180 parts of bismaleimide, 90 to 110 parts of allyl compound, 10 to 20 parts of bisphenol A epoxy resin and 10 to 50 parts of phosphorus-containing compound. The invention also relates to a preparation method for the halogen-free phosphorus-containing flame retardant polyimide resin composite. The method comprises the following steps of: adding the bismaleimide, the allyl compound, the bisphenol A epoxyresin and the phosphorus-containing compound into a reaction kettle, and reacting at the temperature of between 120 and 140 DEG C for 3 to 5 hours to obtain the halogen-free phosphorus-containing flame retardant polyimide resin composite. The halogen-free phosphorus-containing flame retardant polyimide resin composite is synthesized in one step and does not contain halogens and has high flame retardant performance; according to UL94 V0 flame retardant grade tests, the toughness of the cured composite is improved; and the moist heat resistant performance of the composite is high, and the composite meets the requirements of flame retardance and processing in the process of processing copper-clad plates and has high the storage stability.
Owner:INNOTEK TECH CHINA

Fluorescent carbon quantum dot, its light-emitting polymer based composite material and preparation method

The invention discloses a fluorescent carbon quantum dot, its light-emitting polymer based composite material and a preparation method thereof. More specifically, the invention provides a method for preparation of the fluorescent carbon quantum dot and its light-emitting polymer based composite material by taking a small molecule compound as a carbon source and an organosilicone monomer as a catalyst and stabilizer. By means of the combined action of the polymerizable organosilicone monomer and the small molecule carbon source, the carbon quantum dot can be formed in one step. Without purification, the reaction product only needs solvent removal to undergo further reaction so as to form a carbon quantum dot-organosilicone resin composite material. The organosilicone monomer involved in the invention can promote formation of the carbon quantum dot, and can play a role of stabilizing the carbon quantum dot, and also can be used as a polymer matrix monomer. Therefore, the obtained carbon quantum dot has stable luminescent properties, is well compatible with the polymer matrix and keeps the original luminescent properties. The method disclosed in the invention has a simple process and is easy to implement, and can be widely applied in the fields of solar cells and LED devices.
Owner:SUN YAT SEN UNIV

Method of Producing Carbon Fiber Reinforced Ceramic Matrix Composites

The present invention relates to a method of producing carbon fiber reinforced ceramic matrix composites, the method of producing carbon fiber reinforced ceramic matrix composites according to the present invention is characterized in that the method comprises the steps of: producing a carbon fiber reinforced resin composite that is molded with a mixture in which carbon fibers and polymer precursors containing carbon are mixed; producing a carbon fiber reinforced carbon composite by depositing pyrolytic carbon during a rapid thermal gradient chemical vapor infiltration process while increasing the deposition speed in a direction from the inside to the outside by performing a thermal treatment on said carbon fiber reinforced resin composite at high temperature; and infiltrating liquid-phase silicon into the pores of said carbon fiber reinforced carbon composite. The method of producing carbon fiber reinforced ceramic matrix composites according to the present invention as described above has the effect of improving the properties of carbon fiber reinforced ceramic matrix composites, and it is possible to deposit a pyrolytic carbon layer at a deposition speed 5-10 times faster than other conventional chemical vapor infiltration processes, thereby showing a remarkably improved effect in terms of manufacturing process, time, and cost.
Owner:DACC
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