950results about How to "Improve heat resistance" patented technology

A plastic film comprising a multi-layer structure obtained by co-casting film formation or sequential-casting film formation of two or more layers of polyarylate having a glass transition temperature of 250° C. or higher and having a chemical structure represented by the following formula:

wherein X represents a linking group having a naphthalene or biphenyl structure and A is represented by the following formula:

wherein R¹ and R² represent an alkyl group or aryl group, j and k are an integer of from 0 to 4.

A catalyst carrier which comprises particles of a silicon-containing ceramic material. Each of these particles is covered by a film of alumina on which a noble metal is carried.

A resin composition (AA) comprising an aliphatic polyester or aliphatic polyamide (component (A)), a plastic having a melting point or glass transition temperature (Tg) of −10° C. or more (component (B)) and a radical generating agent (C), wherein the compounding ratio of the component (A), the component (B) and the radical generating agent (C), based on the total weight thereof, is: 1 to 98.995% by weight of the component (A), 98.995 to 1% by weight of the component (B), and 0.005 to 5% by weight of the radical generating agent (C), and an aliphatic unsaturated polybasic acid (a) is contained in the polymer constituent of the component (A) and/or the component (B). The resin composition is suitable as a starting material of biodegradable material which maintains transparency, is free of bleeding of a plasticizer, is endowed with flexibility and has other advantageous characteristics so that it can be used in various fields.

The invention discloses a polyimide film. The polyimide film is prepared by the steps of copolymerizing fluorine-containing dianhydride, fluorine-containing diamine and silicon-containing diamine in the presence of an aprotic solvent to generate polyamide acid, and carrying out thermal imidization to obtain the polyimide film. The prepared polyimide film has excellent colourless transparency and high adhesion to various materials. The ultraviolet light cutoff wavelength of the polyimide film is 330nm-345nm, and the maximal transmittance of the polyimide film at 400nm reaches up to 96%; the adhesive force levels of the polyimide film with the surfaces of substrates including aluminum plates, copper foil, glass, ceramic and the like can all reach level 1 or above, the polyimide film does not fall at all after being boiled in water of 80 DEG C for 500 hours, and the lap shear strength exceeds 1.5MPa; meanwhile, the polyimide film preserves high heat resistance and mechanical strength, the tensile strength is 45MPa-83MPa, and the initial decomposition temperature is 483-532 DEG C; furthermore, the polyimide film can be dissolved in partial organic solvents, is good in machinability and has good application prospects in the photoelectric fields of flexible solar cell substrates, liquid crystal display oriented films, communication-linked optical waveguide materials, and the like.

The present invention provides a hot press method used for producing a high-strength member for an automobile and, in particular, a part which requires high-strength, such as an undercarriage component of an automobile. More specifically, the present invention provides an aluminum plated steel sheet or an aluminum-zinc plated steel sheet suitable for high temperature forming (hot forming) wherein high strength is obtained after high temperature forming, and a method of producing the same. Also, the present invention provides a hot dip aluminum plated steel sheet which suppresses the alloying reaction of a plated layer during press forming and has beautiful appearance, and an aluminum-system plated steel sheet for hot press having excellent after-painting corrosion resistance. Concretely, the present invention is a high-strength aluminum-system plated steel sheet excellent in heat resistance and after-painting corrosion resistance, characterized by having an Fe-Al-system coating containing, in mass, Mn and Cr of more than 0.1% in total on the surface of the steel containing, in mass, C: 0.05 to 0.7%, Si: 0.05 to 1%, Mn: 0.5 to 3%, P: not more than 0.1%, S: not more than 0.1% and Al: not more than 0.2%, and, in addition, one or more element(s) selected from among Ti: 0.01 to 0.8%, Cr: not more than 3% and Mo: not more than 1%, so as to satisfy the following expression (1): Ti + 0.5xMn + Cr + 0.5xMo > 0.4 ... 1

The invention discloses a water-based release agent for aluminum alloy die casting and a preparation method thereof. The release agent comprises, by mass, 10 to 30% of dimethicone, 5 to 15% of modified silicone oil, 5 to 20% of a wax composition, 4 to 15% of a surfactant, 1 to 3% of an anti-rust corrosion inhibitor and 0.1 to 1% of a bactericide, with the balance being deionized water. The preparation method comprises the following steps: heating dimethicone, modified silicone oil, the wax composition and the surfactant to a temperature of 70 to 80 DEG C and carrying out uniform mixing with stirring; slowly adding deionized water accounting for 30 to 40% of the total weight of the release agent with stirring in batches so as to prepare an oil-in-water O/W pre-emulsion; and carrying out grinding by using a colloid mill and adding the anti-rust corrosion inhibitor, the bactericide and residual deionized water so as to obtain the water-based release agent with an emulsion particle size of 0.1 to 0.4 mu m. According to the invention, modified silicone oil is used as main base oil, so emulsification difficulty is lowered down, heat resistance is improved, and good high temperature stability is obtained; the wax composition has excellent lubrication capability and a good film forming effect. The release agent has excellent heat resistance, excellent lubricity and a good film forming effect.

A polymer compound comprising a repeating unit of the following formula (1) and which is useful as a light emitting material or charge transporting material and excellent in heat resistance, fluorescent intensity and the like:

(wherein, ring A and ring B represent each independently an aromatic hydrocarbon ring optionally having a substituent, at least one of ring A and ring B is an aromatic hydrocarbon ring composed of a plurality of condensed benzene rings, R_w and R_x represent each independently a hydrogen atom, alkyl group, alkoxy group or the like, and R_w and R_x may mutually bond to form a ring).

An epoxy resin represented by general formula (2), R1-R4 indicate hydrocarbon group of carbon number 1-6, n is 0 or integer of 1 or more and X in aromatic compound (1) is a bond or following general formula wherein R1-R6 indicates hydrogen atom or hydrocarbon group of carbon number 1-6, obtained by reacting aromatic compound represented by general formula (1) and epihalohydrine, having molecular weight distribution comprising, content of n=0 component in the epoxy resin represented by general formula (2) is 60% or less and epoxy equivalent is 250 g/eq or over.

A coated airbag base fabric made of a textile fabric that has an excellent air-barrier property, high heat resistance, improved mountability and compactness and excellent adhesion to a resin film is characterized in that at least one side of the textile fabric is coated with resin, at least part of the single yarns of the fabric are surrounded by the resin, and at least part of the single yarns of the fabric are not surrounded by the resin. An airbag is characterized by using such a coated airbag base fabric. A method for manufacturing the coated airbag base fabric is characterized by applying a resin solution having a viscosity of from 5 to 20 Pa·s (5,000 to 20,000 cP) to the textile fabric using a knife coater with a sharp-edged coating knife at the contact pressure between the coating knife and the fabric of from 1 to 15 N/cm.

The invention discloses a high-performance environment-friendly aluminum alloy mould release agent which consists of modified organic silicone, grease synthetic ester, anti-rust inhibitor, preservative, surfactant and water. The high-performance environment-friendly aluminum alloy mould release agent adopts the special modified organic silicone and the grease as the composite lubricating mould release agent and is further provided with a variety of the anti-rust inhibitor, the preservative and the surfactant, and the product has excellent heat resistance performance and can greatly improve the high-temperature stability and the high-temperature mould release performance of the product and greatly reduce the occurrence of air holes.

The invention discloses a preparation method of a high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint, in the mixed solvent taking dimethyl benzene, cresol and butanol as solvent, the the high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint which meets the requirement of the heat resistant condition the temperature of which is over 180 DEG C is made by the reaction of raw materials such as nylon 12, epoxy resin, organic silicone resin and leveling agent, lubrication prescription and acidification preventing agent added in sequence, the manufactured product has the advantages of good application adaptability, smooth and clean product, easy mould release, heat resistance, even adhesive force and deformation resistance.

The present invention relates to one kind of high molecular composite material, and is especially one kind of shock resisting conductive polyphenyl ether-polyamide composition and its preparation process. The polyphenyl ether composition consists of polyphenyl ether resin 30-50 wt%, polyamide 20-50 wt%, carbon black 0.3-25 wt%, shock modifier 3-20 wt% and phosphate 1-10 wt%. It is prepared through high speed pre-mixing and dispersing and once extruding. The polyphenyl ether-polyamide composition has high chemical resistance, high mechanical performance, easy forming and other advantages, and is suitable for use as package of electronic devices and in electrostatic coating parts.

The invention discloses a tobacco granule type tobacco product incombustible in heating and a making method thereof. The tobacco granule type tobacco product incombustible in heating comprises a tobacco granule segment and a filter tip segment; the tobacco granule segment is that a front-end plugging structure and a tail-end plugging structure are fixed to the front end and the tail end of an empty paper tube respectively, the position between the front-end plugging structure and the tail-end plugging structure is filled with tobacco granules, and the tail-end plugging structure is close to the filter tip segment. The tobacco granule type tobacco product releases sufficient and stable smoke, the tobacco granules do not fall, a cigarette can be directly pulled out, and the making process issimple and easy.

The invention relates to a high-flame-retardance high-heat-resistance halogen-free flame-retardant thermoplastic polyurethane elastomer cable material and a preparation method thereof, belonging to the field of halogen-free flame-retardant cable materials. The cable material is prepared from the following raw materials in percentage by weight: 20-50% of thermoplastic polyurethane elastomer, 15-40% of styrene elastomer, 3-8% of plasticizer, 20-30% of expansion flame retardant, 4-7% of flatting agent, 0.5-1% of lubricant, 0.5-1% of antioxidant and 1.5-3% of master batch. The thermoplastic polyurethane elastomer is a polyether-type thermoplastic polyurethane elastomer of which the hardness range is Shore A 60-90. The invention improves the problem of too narrow processing temperature region for the thermoplastic polyurethane elastomer cable material, and also improves the heat resistance of the cable material. The thermoplastic polyurethane elastomer, which is used as a base, is subjected to melt blending with the high-temperature-resistant material; and the novel expansion flame retardant which is nonmigratory in contact with water is used as the flame retardant of the base.

To provide an organic electroluminescent device showing various luminescent color tones and having high heat resistance, a long lifetime, high emission luminance, and high emission efficiency, in particular, an organic electroluminescent device capable of preventing the attenuation of emission luminance in association with the driving of the device. Provided is an organic electroluminescent device including: an aromatic amine compound having a specific structure; a cathode; an anode; and one or multiple organic thin film layers having at least a light-emitting layer, the one or multiple organic thin film layers being interposed between the cathode and the anode, in which at least one layer of the one or multiple organic thin film layers contains the aromatic amine compound alone or as a component of a mixture.

The invention discloses a heat-resistant all aluminum alloy conductor and a manufacturing method thereof. The heat-resistant all aluminum alloy conductor comprises the following elements by weight percent: 0.40-0.80% of Mg, 0.05-0.35% of Si, 0.2-0.5% of Zr, 0.15-1.0% of Fe, 0.001-0.2% of B, 0.05-0.35 of rare earth, less than 0.01% of Cu, less than 0.01% of the sum of Ti, V, Mn and Cr, and the balance Al and inevitable impurities. The manufacturing method of the invention comprises the following steps: feeding Al, Mg, Si, Zr, Fe, B and rare earth in a furnace, alloying, stirring, standing, casting, rolling, performing wire drawing, performing artificial ageing treatment and stranding. The heat-resistant all aluminum alloy conductor has excellent heat resistance, light mass, large carrying capability, higher strength, corrosion resistance and abrasion resistance; and the transmission capability of transmission lines is effectively increased and the service lives of the transmission lines are effectively prolonged.

In a temperature sensor including a pair of electrode wires for signal lead-out, bonded to both opposing end faces of a thermistor device, this invention aims at preventing peeling, of bond portions, between the electrode wires and the thermistor device. This object can be accomplished by sealing the thermistor device 3 and the bond portions between the thermistor device 3 and the electrode wires 4 by using an electrically insulating glass member 6, and holding the pair of electrode wires 4 by using a holding member 8 made of an electrically insulating ceramic while a gap is kept between them.

Provided is a condensed ring-containing compound having a condensed dicyclic group having a specific structure and carbazolyl groups and/or indolyl groups, and further provided is an organic electroluminescent device in which an organic thin film layer comprising a single layer or plural layers having at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer contains the condensed ring-containing compound described above in the form of a single component or a mixed component, whereby a current efficiency and a heat resistance are high, and a lifetime is very long.

Provided is a technology by which a retardation film in which regions different from each other in one or both of optical characteristics, i.e., an optical axis and a retardation are patterned can be produced with an additionally small load. The retardation film is formed of a liquid crystalline polyimide film having a photoreactive group. Further provided is an optical device and a liquid crystal display apparatus each having the retardation film.

The invention discloses a lost foam casting-penetrating method for improving heat resistance of gray cast-iron based casting surface, aiming at forming a heat-resistant alloy layer on the casting surface. The steps of the method comprises: 1) the preparation of a lost foam model, and the design and mixture of all composites of casting-penetrating coating layer are carried out; that is, polystyrene foam plastics are used for processing the lost foam model which has the same shape with the casting needed; the composites and content of the casting coating layer are designed, weighted and evenly mixed. 2) the casting coating-penetrating layer and a coating layer are coated; that is, caking agents are added in the composites of the mixed casting-penetrating coating layer, then is mixed to be pasty; the pasty matter is uniformly coated on the corresponding surface of the lost foam model, the surface is leveled by brushing absolute ethyl alcohol and is baked in an electric stove. The surface of the casting-penetrating coating layer is coated into the coating layer after the coating is dried on the lost foam model by adopting a brushing, soaking, dripping or spraying method, and then is baked in the electric stove. 3) molding is carried out. 4) casting is carried out; that is, the casting temperature of molten iron of the gray casting iron is 1400-1450 DEG. C, after being casted for four hours, box-opening, cooling, sand shaking-out and cleaning are carried out.

The invention relates to heat-resistant high-temperature vulcanized silicone rubber. The heat-resistant high-temperature vulcanized silicone rubber is prepared from, by weight, 100 parts of crude rubber, 10-100 parts of a reinforcing filler, 1-100 parts of a nano-scale heat-resistant filler, 1-100 parts of a micron-scale heat-resistant filler, 0.5-20 parts of a small-molecular heat-resistant agent, 3-15 parts of a structurized control agent, 1-10 parts of a surface-treated agent, 0.1-10 parts of a heat-resistant surface-treated agent and 0.1-10 parts of an internal deformable auxiliary. The heat-resistant high-temperature vulcanized silicone rubber is suitable for multiple product molding processes of mold pressing, extruding, injecting and the like, and high-temperature working devices of various shapes can be molded; the product is good in heat-resistant effect after vulcanization, hardness can be adjusted by synchronous adjustment of formulas and processes, use of different environments is met, good mechanical performance in long-time high-temperature environment can be sustained, working environment is protected, and stable operation of equipment is maintained.

Disclosed is a copper foil for printed circuits prepared by forming a primary particle layer of copper on a surface of a copper foil, and then forming a secondary particle layer based on ternary alloy composed of copper, cobalt and nickel on the primary particle layer; in which the average particle size of the primary particle layer is 0.25 to 0.45 μm, and the average particle size of the secondary particles layer based on ternary alloy composed of copper, cobalt and nickel is 0.05 to 0.25 μm. Provided is a copper foil for printed circuits, in which powder fall from the copper foil can be reduced and the peeling strength and heat resistance can be improved by forming a primary particle layer of copper on a surface of a copper foil, and then forming a secondary particle layer based on copper-cobalt-nickel alloy plating on the primary particle layer.

A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

The invention discloses a polypropylene imide foam material and a preparation method thereof. The polypropylene imide foam material provided by the invention is prepared by the following raw material compositions by weight portion: 1 to 100 portions of propylene monomer containing carboxyl groups or ester groups, 1 to 100 portions of propylene monomer containing nitrile groups and 1 to 100 portions of bismaleimide resin. The method comprises the following steps that: the bismaleimide resin, acrylic acid monomer and acrylonitrile monomer undergo radical copolymerization to form a foam precursor copolymer, and then the polypropylene imide foam material with high strength, high modulus and high heat resistance is formed through the thermal foaming process. The polypropylene imide foam material can be widely used for manufacturing foam interlayer structural members of astronavigation, avigation and space shuttles, ships, high-speed trains and wind power generating equipment.

The invention provides epoxy resin. The epoxy resin is good in operability, is halogen-free and can form a condensate having high glass transition temperature and high fire resistance. The invention relates to the epoxy resin represented by a general formula (1), a preparation method of the epoxy resin, an epoxy resin composition containing the epoxy resin, a semiconductor sealant containing the epoxy resin composition, the condensate containing the epoxy resin composition as well as a semiconductor device containing the condensate.

The invention provides a diaphragm, a preparing method of the diaphragm and a lithium ion battery comprising the diaphragm. The diaphragm comprises a polymer substrate and slurry layers positioned at the inside and on the surface of the substrate; each slurry layer comprises ceramic particles and curing resin; the curing resin is obtained through performing cross-linking and curing reaction on curing agents or initiating agents positioned inside the substrate and cross-linking resin positioned in the slurry layers; the high-temperature-resistant performance of the diaphragm is excellent; a heat-resistant layer cannot easily fall; and the winding, the preparation and the practical application are easier.

The invention relates to a smoke-free and tasteless ceramic fiber board, which belongs to the technical field of ceramic fiber materials. The smoke-free and tasteless ceramic fiber board comprises raw materials and is characterized in that the raw materials do not contain organic bonding agents; and the manufactured ceramic fiber board is smoke-free and tasteless. The smoke-free and tasteless ceramic fiber board does not contain volatile organic compounds in the using process, belongs to green environmental-friendly inorganic materials, has excellent performances of heat resistance, fire resistance and heat insulation and excellent strength, greatly reduces the volume density and the production cost, and can be used for the fireproofing and heat preservation of household appliances and ceramic kiln industries. Compared with the conventional smoke-free and tasteless board, the smoke-free and tasteless ceramic fiber board expands the application field of ceramic fibers.

The invention discloses a modified phenolic resin adhesive for a friction material and a preparation method for the modified phenolic resin adhesive. The method comprises the following steps of: mixing 100 mass parts of phenol, 60 to 120 mass parts of 37 mass percent formaldehyde solution, 2 to 20 mass parts of amine substance and 8 to 40 mass parts of cardanol uniformly, dripping 1 to 20 parts of composite catalyst, heating to the temperature of between 80 and 105 DEG C, and performing constant-temperature reaction for 0.5 to 2 hours; and adding 0 to 10 parts of acid catalyst, continuously performing constant-temperature reaction for 1 to 2 hours to obtain orange milky dope, washing the orange milky dope for 2 to 5 times in water of 60 to 70 DEG C, drying, dehydrating, and thus obtaining the cardanol and amine substance modified phenolic resin adhesive. The amine substance can be well dissolved, so that the reaction rate is quickened; the toughness of the modified phenolic resin adhesive is further enhanced by adding powdery nitrile rubber; and the friction material prepared by using the modified phenolic resin adhesive has the advantages of low abrasion rate, long service life, high toughness, high-temperature resistance, high-strength impact resistance and low noise.

A biodegradable aliphatic polyester, such as polylactic acid, is mixed with a monomer having allyl and molded into a molding having the crosslinking degree of the biodegradable aliphatic polyester increased. Thereafter, the molding is exposed to ionizing radiation to thereby obtain a molding excelling in heat resistance. Triallyl isocyanurate or triallyl cyanurate is used as the monomer having allyl.

The invention discloses an environment-friendly copper clad laminate (CCL) for an LED (Light-Emitting Diode) monochrome display, a glue solution and a preparation method. The glue solution for a CCL comprises the following raw materials by mass: 400-500 parts of resin, 8-12 parts of curing agent, 0.2-0.3 part of curing accelerator, 100-120 parts of solvent, and an inorganic filler that includes one or more of talc powder, kaolin, magnesium hydroxide, aluminum hydroxide, zinc borate, zinc molybdate, magnesium oxide, calcium carbonate, calcium silicate, barium sulfate and boron nitride, wherein the inorganic filler accounts for 10%-70% of the total mass of the raw materials. According to the invention, the CCL is good in heat resistance, high in heat dissipation performance, low in organic content, environment-friendly during waste treatment, low in production cost, and suitable for industrial production.