43results about How to "Excellent heat resistance temperature" patented technology

The invention belongs to the technical field of high-molecular materials, and discloses a long glass fiber reinforced composite polypropylene material, and a preparation method and an application thereof The material is prepared by using the following components, by weight, 55-75 parts of polypropylene, 20-40 parts of a continuous glass fiber, 0.1-0.5 parts of a coupling agent, 0.01-0.1 parts of a primary antioxidant, 0.01-0.1 parts of an auxiliary antioxidant, 0.5-1 part of a lubricant and 3.5-4.2 parts of compatilizer. The invention also provides a preparation method of the long glass fiber reinforced composite polypropylene material, and a use of the long glass fiber reinforced composite polypropylene material in automobile components. The long glass fiber reinforced composite polypropylene material can be widely used in automobile components comprising header boards, automobile door panels, inner casings and the like, and has the characteristics of low cost, short injection molding period, low residual stress and small warpage of products, and low fraction defective of the products.

The invention discloses modified polyphenylene sulfide resin suitable for 3D printing. The modified polyphenylene sulfide resin is a combination of the following components in parts by weight: 65-85 parts of polyphenylene sulfide resin, 0.05-0.6 part of a chain extender, 0.5-1 part of an end capping agent, 0.1-0.7 part of a crosslinking agent, 3-20 parts of low-molecular-weight polymer, 2-10 parts of a toughening agent, 1-5 parts of a reinforcing agent, 1-6 parts of a lubricating agent and 0.1-0.7 part of a heat stabilizer. The polyphenylene sulfide resin is modified by adopting the simple processes of mixing materials and extruding, and the processing temperature of the modified polyphenylene sulfide resin is reduced greatly. The melting temperature of the device formed by printing by adopting the modified polyphenylene sulfide resin is not reduced significantly, and the toughness is improved, and thus the polyphenylene sulfide resin can be widely applied to the field of 3D printing.

The invention provides a difficult-flammble polycarbonate composition and a preparation method thereof. The difficult-flammble polycarbonate composition comprises the following components in parts byweight: 96.0-99.8 parts of polycarbonate resin, 0.1-3.0 parts of a toughening agent, 0. 01-6.0 parts of a flame retardant, 0.1-5.0 parts of an anti-hydrolysis agent, 0.01-2.0 parts of an antioxidant,and 0.01-1.2 parts of other additives; wherein the anti-hydrolysis agent is one of carbodiimide, isocyanate, oxazoline, and an epoxy compound. The difficult-flammble polycarbonate composition has goodflame retardation performance, toughness and anti-hydrolysis performance, the heat resistance temperature is higher than 120 DEG C, and the difficult-flammble polycarbonate composition is especiallysuitable for occasion with high usage environment requirements.

The invention belongs to the technical field of high polymer materials, and relates to a low-odor and scratch-resistant continuous fiber reinforced polypropylene composite material and a preparation method thereof. The composite material is prepared from the following ingredients in parts by weight: 40 to 65 parts of polypropylene, 30 to 50 parts of continuous glass fiber, 0.5 to 5 parts of coupling agent, 0.02 to 0.05 part of primary antioxidant, 0.04 to 0.1 part of auxiliary antioxidant, 0.5 to 1 part of lubricant, 0.5 to 5 parts of compatilizer, 3 to 5 parts of compound odor inhibitor and 0.4 to 1.2 parts of compound scratch-resistant agent. By means of adding the compound odor inhibitor and the compound scratch-resistant agent, an odor level of the continuous glass fiber reinforced polypropylene composite material provided by the invention can be 3-level or higher, and a scratch-resistant effect can reach a five-finger scratch color difference value delta L smaller than 1.0; furthermore, original excellent mechanical strength of the continuous glass fiber reinforced polypropylene composite material is not affected after the odor inhibitor and the scratch-resistant agent are added, and application of the continuous glass fiber reinforced polypropylene composite material in automotive upholstery, electric tool casings and parts of home appliance workpieces is widened.

The invention discloses a process for preparing a heat-resistant steel plate. According to the process, bottom paint and surface paint are sprayed and baked on a pre-coating steel plate in sequence, wherein the bottom paint and the surface paint are prepared from organic silicon modified polyester which is used as the binder of a paint composition and other auxiliaries. In the actual application, the organic silicon modified polyester has excellent high-temperature resistant performance, so that the prepared paint composition has better characteristics and can be sprayed on the surfaces of iron, aluminum, or stainless steel and other metals; and moreover, the paint composition is widely applied to heat-resistant materials like a baking tray, an electric frying pan, a barbecue tool.

The invention provides a high-flame-retardant soft PVC coated polyester yarn high-molecular composite sun-shading material, which is synthesized by PVC resin powder, a flame retardant and other auxiliary materials, wherein the main raw materials of the flame retardant comprise phosphate ester, zinc stannite, metal hydroxide, decabromodiphenyl ethane and antimony trioxide, and simultaneously contain chlorinated polyvinyl chloride and chlorinated paraffin; the coated polyester fiber is woven into a sunlight fabric with high-flame-retardant performance, and the limiting oxygen index can exceed 32.0 %. The high-molecular composite sun-shading material can interact with a gas phase and a solid phase through the compound system, the flame retardancy of the soft PVC coated polyester yarn high-molecular composite sun-shading material is significantly improved, the limiting oxygen index of the material is 32. 4 %, the problem of low limiting oxygen index of the high-molecular composite sun-shading material is solved, the flame retardant efficiency of products is significantly improved, the fire risk of products is reduced, the products are more competitive, this innovation has made a breakthrough in the flame retardancy of soft polymers in the textile field.

The invention relates to a high-heat-conductivity organic silicon potting adhesive, and a preparation method and application thereof. The potting adhesive comprises the following raw materials in percentage by weight: 35-55% of base polymer, 0.5-10% of crosslinking agent, 0.05-0.5% of catalyst, 0.001-0.01% of inhibitor and 40-60% of filler. The base polymer is polysiloxane containing two or more vinyls, and the rotary viscosity at 25 DEG C is 200-4000 mPa.s. The crosslinking agent is prepared by carrying out reaction on 3-methylacryloyloxypropylmethyldimethoxysilane, hexamethyldisiloxane, octamethylcyclotetrasiloxane and tetramethylcyclotetrasiloxane in the presence of water and an acidic catalyst. The potting adhesive has the advantages of excellent heat-conducting property, high salt spray resistance, high/low temperature resistance, ozone corrosion resistance, ultraviolet aging resistance, excellent tensile strength, excellent extension at break, excellent hardness and simple forming technique, and is suitable for complicated and changeable environments of navigation motors.

The present invention relates to an organophosphorus hybrid alpha-ZrP flame-retardant material and a preparation method thereof, alpha-ZrP is used as a substrate, a small molecule amine is used for supporting in advance to reduce alpha-ZrP inter-laminate force and increase interlayer spacing, then a silane coupling agent is inserted between layers, the small molecule amine for supporting in advance is removed by heat treatment, and the organophosphorus hybrid alpha-ZrP flame-retardant material can be prepared by the effect of formation of chemical bonding of a terminal group of the silane coupling agent and organophosphorus, wherein the initial decomposition temperature of the organophosphorus hybrid alpha-ZrP is 340-450 DEG C, the interlayer spacing is 1.60-2.50nm, the grafting ratio of the silane coupling agent is 6 to 18%, and the organophosphorus content is 1 to 15%. The organophosphorus hybrid alpha-ZrP flame-retardant material has high thermal stability, grafting ratio, interlayer spacing and organophosphorus content, has stronger nonpolar organic substance affinity, can be uniformly dispersed in a hydrophobic organic polymer material, may be added into most polymer materials (PET, PBT, PP, and the like) processed by melting for e preparation of flame-retardant materials, and has excellent flame retardant properties.

The invention belongs to the technical field of polymer materials, and in particular, relates to a long glass fiber reinforced polyketone material prepared from the following components in parts by weight: 45-85 parts of polyketone resin, 15-50 parts of continuous glass fibers, 0-0.5 part of a main antioxidant, 0-0.3 part of an auxiliary antioxidant, 0-1 part of a lubricant, and 0-5 parts of a stabilizer. With adopting of the long glass fiber reinforced polyketone material, the grain-sized dicing length of grains is 10-15 mm, fibers in the grains are in ordered arrangement in the resin along the grain-sized dicing direction, and the fiber length is equal to the grain length; the material also has excellent rigidity, impact toughness and good heat-resistant temperature, especially has excellent low-temperature impact properties, and has the advantages of simple design, low cost and high productivity.

The invention provides a high-strength high-temperature-resistant fireproof thermal insulation material which comprises a component A and a component B which are not mixed with each other or a component A and a component B which are not mixed with each other and water, the component A is an inorganic liquid high-temperature-resistant fireproof material, and the component B is an inorganic powdery high-temperature-resistant fireproof material, the inorganic powdery high-temperature-resistant fireproof material of the component B comprises high-temperature-resistant modified silicate powder, and at least one of super-high-temperature-resistant fireproof powder and heat-insulating cooling powder. And a reinforced protection effect at the highest temperature of 2300 DEG C for more than 5 hours is formed, so that a structural material is protected from unacceptable deformation influence caused by high temperature.

The invention discloses a weather-resistant steel plate which is prepared from a pre-coated steel plate coated and roasted by a basic coating and a surface coating sequentially. The basic coating and the surface coating used by the invention are prepared from organosilicone modified polyester resin as a base material and other auxiliaries. According to the weather-resistant steel plate disclosed by the invention, due to excellent heat resisting temperature, excellent adhesiveness and processibility on metal materials, excellent solvent resistance, good high-heat hardness and the like, the organosilicone modified polyester resin can be used for being sprayed on metal surfaces of iron materials, aluminum products or stainless steel and the like and can be widely applied to heat-resisting materials, such as a petroleum refining furnace, an aluminum refining furnace, an engine exhaust system and an engine silencer, which are in a high-temperature working condition for a long time.

The invention discloses a weather-resistant steel plate and a preparation process thereof. A base coating and a surface coating applied to the weather-resistant steel plate are prepared from organosilicone-modified polyester resin serving as a base material of a coating composition and assisted by other assistants. In a practical preparation process, the base coating and the surface coating employing the organosilicone-modified polyester resin as the base material are mainly adopted; and coating and baking are sequentially carried out on a pre-coated steel plate, so that the operation flow is simple and rapid. In practical use, the organosilicone-modified polyester resin has relatively excellent high-temperature resistance, and therefore the prepared coating composition has relatively good property, can be sprayed on metal surfaces such as iron material, aluminum products or stainless steel, and can be widely applied to heat-resistant materials of an oil refining furnace, an aluminum refining furnace, an engine exhaust system, a motor vehicle exhaust silencer and the like in a high-temperature working state for a long time.

The invention relates to a spiral inner-tube vacuum heat collecting tube suitable for large temperature difference. The spiral inner-tube vacuum heat collecting tube comprises an outer tube, a sealing element, an inner tube and a supporting tube, wherein the sealing element is used for sealing the two end parts of the outer tube and enclosing a vacuum space; the inner tube is arranged inside the outer tube, and two ends of the inner tube penetrate out of the sealing element; two ends of the supporting tube are connected with the sealing element, and the supporting tube is used for supporting the inner tube; and the inner tube comprises a spiral section located in the middle and linear sections located at two ends, wherein the spiral section is wound on the supporting tube, the linear sections penetrate out of the sealing element, and annular bulges for preventing the linear sections from sliding relative to the sealing element are also arranged at positions, penetrating out of the sealing element, on the linear sections. By using the spiral inner-tube vacuum heat collecting tube, a favorable vacuum degree can be kept between the outer tube and the spiral inner tube under the conditions of high temperature and large temperature difference; and the spiral inner-tube vacuum heat collecting tube is low in manufacturing cost, long in working life, high in heat efficiency and capable of greatly promoting the industrialization and large-scale production of solar heat collecting tubes and promoting environment protection.

The invention discloses a preparation process of a color paint steel plate. A weather-resistant steel plate is prepared by coating and baking a pre-coated steel plate by virtue of a bottom prime paint, wherein the coating and baking step includes: smearing color paint on the surface layer of the pre-coated steel plate, wherein the thickness of the coating is 3 to 15 micrometers, after the smearing, sending the steel plate into an electric furnace, baking the steel plate for 1 to 6 hours, and then obtaining the color paint steel plate. Saturated carboxylated polyester is used as a base material of the prime paint, in the real application, since the saturated carboxylated polyester has excellent heat resistance, excellent adhesion and machinability for a metal material, excellent solvent resistance and good high heat hardness, can be used for being smeared on the metal surface such as an iron material, an aluminum material, stainless steel and the like and is widely applied to the heat resisting materials such as a baking tray, an electric frying pan and a roaster.

The invention discloses a preparation method of a coating for a heat-resistant steel plate. The preparation method comprises the steps of with organic silicon modified polyester resin as a coating matrix, adding auxiliary materials including pigment, a polyamide curing agent, filler, a siloxane coupling agent and a solvent, and mixing; and grinding by using a ball mill to form paste with the fineness of 10-20mu m. In actual use, the organic silicon modified polyester resin has relatively good high temperature resistance, so that the coating prepared from the organic silicon modified polyester resin has favorable property, can be sprayed on the surface of metal such as an iron material, an aluminum material or stainless steel and is widely applied to a heat-resistant material such as a baking tray, an electric frying pan and a grilling apparatus.