714results about How to "High decomposition temperature" patented technology

A composition comprising:(a) polyethylene;(b) as a first antioxidant, a thiobisphenol;(c) as a second antioxidant, a compound containing 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate in the molecule;(d) as a third antioxidant, distearyl thiodipropionate; and(e) an organic peroxide,with the proviso that each antioxidant is present in an amount of about 0.01 to the about 0.2 part by weight and the organic peroxide is present in an amount of about 0.5 to about 3 parts by weight, all per 100 parts by weight of polyethylene.

The invention discloses a preparation method of a halogen-free flame retardant nylon 66 polymer and belongs to the field of a preparation technology of flame retardant nylon 66. According to the method, a copolymerization reaction between a reactive flame retardant-a DOPO derivative and diacid or diamine is firstly carried out to generate salt; and a copolymerization reaction between the generated salt and nylon 66 salt is then carried out so as to obtain the halogen-free flame retardant nylon 66 polymer. By selecting the new reactive flame retardant (the DOPO derivative) and through a matched polymerization formula and technology, the flame retardant nylon 66 polymer is developed. The flame retardant nylon 66 polymer has characteristics of high melting point, high decomposition temperature of the flame retardant, high molecular weight flame retardant polymer and high-strength flame resistant fibre, and fills gaps at home and abroad.

The invention discloses an application of hyperbranched polyester to plastic processing, and belongs to the technical field of plastic processing assistants. The application of the hyperbranched polyester to plastic processing includes the steps that by mass, 0.1% to 5% of the hydroxyl-terminated hyperbranched polyester is added into plastic; the mixture is mixed to be even, extruded, prilled and dried, and a modified plastic product is obtained. According to the application, the plastic such as PPC and the hyperbranched polyester are melted and blended, and the plastic such PPC is modified through a double-screw extruder; after the hyperbranched polyester is added into a base material of the plastic such as PPC, the effective melt viscosity of the plastic such as PPC can be remarkably reduced; in other words, processing temperature and thermal degradation are reduced; in addition, melting fluidity improved in this way can also be achieved through the small adding amount,, and extruding film forming can be more easily achieved; the tensile strength of the modified plastic such as PPC is up to 30 MPa, and the strength can be higher than the strength of thin-film-level LLDPE and the strength of thin-film-level PVC.

The invention discloses a self-lubricating composite material gasket for a bearing and a preparing method for the gasket. A fiber mixed fabric is formed by weaving PTFE (polytetrafluoroethylene) fiber with at least one type of other fiber; an impregnated material is coated on the surface of the fiber mixed fabric; the final thickness of the fiber mixed fabric is 0.30 to 0.55 mm; the thickness of the gasket is 0.35 to 0.60 mm; the weight ratio of the PTFE fiber to the gasket is 0.3 to 0.7; and the other types of fibers can be any one or a few of aramid fiber, carbon fiber, high-strength polyester fiber and cotton fiber. The self-lubricating gasket has the characteristics of high strength and low friction coefficient, and is suitable to be used in heavy-duty occasions under the temperatures ranging from -50 to 180 DEG C.

The invention discloses a non-halogen flameproof cable jacket material formula without harming environment, which is characterized by the following: adopting ethylene-octaolefin copolymer, low-density polyethylene, ethylene-vinyl acetate copolymer as basic resin; making magnesium hydroxide as flameproof agent; using bulking graphite and organic montmorillonite as flame-proof assisting agent; adding lubricant and anti-oxidant to form the formula of cable jacket; improving extending strength to 10-14Mpa and fracture extending rate at 150-350%.

The invention belongs to the technical field of lithium ion batteries and specifically relates to a high-safety lithium manganese iron phosphate battery. The high-safety lithium manganese iron phosphate battery comprises a positive plate, a negative plate, an isolating membrane, an electrolyte and a battery shell, wherein the positive plate includes a positive pole current collector and a positive pole active material layer which is coated on a surface of the positive pole current collector; the positive pole active material layer includes the following components by weight percentage: 90wt%-96wt% of positive pole active material, 1.5wt%-5wt% of positive pole conductive agent and 2wt%-5wt% of positive pole binding agent; the positive pole conductive agent is a mixture of conductive carbon black and at least one of a carbon nano tube or graphene; and the ratio of the conductive carbon black to at least another conductive agent is 1wt%:0.5wt% to 4wt%:1wt% based on the weight percentage in the positive pole active material layer; the isolating membrane is one of a polyolefin film or a non-woven cloth film; and the electrolyte is a high-temperature-resistant electrolyte. Compared with a nickel cobalt lithium manganate ternary battery and a lithium iron phosphate battery, the high-safety lithium manganese iron phosphate battery has relatively high weight specific energy and relatively high safety performance at the same time, has a long cycle life and is suitable for popularization and application in the field of new energy vehicles.

A manufacturing method of a semiconductor device of the present invention includes the step of forming an insulating film on a substrate, and the step of forming a high dielectric constant insulating film on the insulating film, and the step of forming a titanium aluminium nitride film on the high dielectric constant insulating film, wherein in the step of forming the titanium aluminum nitride film, formation of an aluminium nitride film and formation of a titanium nitride film are alternately repeated, and at that time, the aluminium nitride film is formed firstly and / or lastly.

The invention provides negative electrode slurry of a lithium ion battery, a positive electrode of the lithium ion battery prepared by using the slurry, and the battery. The negative electrode slurry comprises a negative-electrode active material, a bonding agent, a solvent and a pore-forming agent, wherein the pore-forming agent is selected from one or more in azo-compound and / or sulfonylhydrazine compound. The slurry, the positive electrode and the battery have the advantages that under the condition of guaranteeing no reduction of the compaction density of a negative electrode piece, the porosity of the electrode piece can be increased, the uniformity of pore distribution is increased, the effective area of a liquid phase for conducting lithium ions is improved, the high energy density of the battery is guaranteed, simultaneously the rate capability and the low-temperature performance of the battery are improved and simultaneously the capacity is also improved.

A quaternary ammonium salt ionic liquid of the present invention and its preparation and application methods belong to quaternary ammonium compounds, and its molecular composition is N, N, N-trimethyl-N-sulfobutyl-ammonium bisulfate, and its molecular formula is [HSO3-b -N(CH3)3]HSO4, the structural formula is as follows: the quaternary ammonium salt ionic liquid of the present invention is non-corrosive equipment and environment-friendly, and the quaternary ammonium salt ionic liquid catalyst of the present invention is used for nitrobenzene catalytic hydrogenation to synthesize p-amino The phenol reaction is a liquid phase method, the reaction temperature is 60-130° C., and the PAP yield reaches 19.5-88%.

The invention relates to an oxo-vanadium phosphate catalyst, and a preparation method and application thereof. The catalyst is prepared through the following steps: preparing a precursor by performing ionothermal synthesis on vanadium pentoxide or metavanadate and phosphate or biphosphate used as raw materials in ionic liquid or eutectic mixture solvent at 120-180 DEG C under normal pressure; and then roasting. The synthesis method is operated under normal pressure, is safe and convenient, and has low requirements for equipment. The catalyst prepared through the method has a special spherical or claviform shape, has high specific surface area and can be used for cyclohexanol oxidation reaction.

The invention relates to a nitrogen, silicon and chlorine thee-element synergic flame retardant tri{2-chloro-3-[tri(chloroethoxy)silicon acyloxy]propyl}isocyanurate compound and a preparation method thereof. The structure of the compound is shown as a formula in the specification. The preparation method comprises the following steps: dripping organic solvent solution of triglycidyl Isocyanurate into silicon tetrachloride, and reacting for 4 to 6 hours at a temperature of between 50 and 70 DEG C; and cooling to 30 DEG C, introducing ethylene oxide under the liquid surface, reacting for 2 to 3 hours at a temperature of between 45 and 55 DEG C, and purifying to obtain the tri{2-chlor-3-[tri(chloroethoxy)silicon acyloxy]propyl}isocyanurate. The compound has good flame retardant plasticization, and is suitable for flame retardant plasticizer such as polyvinyl chloride, polyurethane, epoxy resin, unsaturated resin and the like; and the method has simple production process and low cost, and is easy for industrial production.

The invention provides a polyvinyl alcohol membrane. The polyvinyl alcohol membrane is produced through blow molding of melt-processible polyvinyl alcohol resin, the tensile strength of the polyvinyl alcohol membrane is not lower than 20 MPa, the melt-processible polyvinyl alcohol resin comprises effective amounts of polyvinyl alcohol, a plasticizer, soft water and a processing assistant, the degree of polymerization (DP) of the polyvinyl alcohol is 1000-3500, the degree of hydrolysis (DH) of the polyvinyl alcohol is greater than 72 (mol)% and is smaller than 99.9 (mol)%, the plasticizer is at least one of glycerol, polyethylene glycol and triethylene glycol di-2-ethylhexoate, and the processing assistant is at least one of talcum powder, silica, oleamide and saturated aliphatic dicarboxylate. The method has the advantages of simple process, less device investment, small occupied area, and realization of blow molding of normal-temperature, medium-temperature and high-temperature water soluble membranes. The method is mainly used for producing double-layer membranes, and the membranes can be directly processed to produce various water-soluble bags, and the water-soluble bags are used in the field of medium and low end packaging application, and can be used as a pesticide and chemical engineering product inner packaging liner bag, a hospital washing packaging bag and a refuse bag.

The present invention relates to an organic phosphorus-based flame retardant and a process for producing the same, and more particularly, relates to a commercial process for producing an organic phosphorus-based flame retardant comprising: a step of reacting bisphenol A with formaldehyde, a step of extracting reaction products by putting the reactants into organic solvent, and a step of condensation-polymerizing the reaction products by adding phosphine-based or phosphite-based compounds.

The invention discloses a dimethylanthracene-containing compound and an application of the dimethylanthracene-containing compound on an organic electroluminescent device. A structural general formula of the organic compound is shown as a general formula (1). The compound has high glass transition temperature and molecular thermal stability, and appropriate HOMO and LUMO energy level and high Eg, by optimizing a device structure, the photoelectric property of the OLED device and the life of the OLED device are effectively increased.

The invention relates to an anti-static modified material with carbon nanotubes (CNTs) predominantly and a process which is a thermal oxidation treatment with acid together with a ball grinding surface treatment to CNTs and comprises: adding maleic anhydride grafted polyethylene, coupling agents and EPT rubber to prepare the high concentration masterbatch of CNTs / PE anti-static composite material by solution blending and melt blending methods, mixturing the said masterbatch with common PE in a finite proportion to melt blend and prill, then getting the final CNTs / PE anti-static composite material. The electrical surface resistivity and volume resistivity can reach the operating requirements of the anti-static material when the content of CNTs is only 0.3 wt % in the CNTs / PE anti-static composite material in the invention.

The invention discloses an epoxy resin based on gallic acids with a structure shown as the formula I, which has high epoxy values and also has higher crosslinking density after being cured, thus having good mechanical property and thermal property. The invention also discloses a preparation method of the epoxy resin based on the gallic acids, comprising the following steps: mixing the gallic acids, epoxy halogenopropane and a catalyst and reacting for 2-5 hours at the temperature of 100-120 DEG C; cooling to 20-40 DEG C; adding alkaline compounds and water and continuing to react for 2-5 hours; and washing, removing a solvent and drying to obtain the epoxy resin based on the gallic acids. The preparation method is simple in process, good in controllability and easy to implement industrially. The invention also provides an application of the epoxy resin based on the gallic acids. The epoxy resin based on the gallic acids is particularly applied to preparing composite materials, epoxy adhesives and coatings.

A method of manufacturing new materials for a printed circuit board and Low-Earth Orbit (LEO) spacecraft is provided. The present invention includes dinitro, diamine, various phosphorous-containing polyimides and polyamides, and synthesizing methods thereof. The polymers of the embodiment of present invention exhibit good flame retardancy, high glass transition temperature, good mechanical properties and superior oxygen resistance, so they are good materials for Low-Earth Orbit applications. Besides, these polymers can also be used as matrix for halogen-free flexible printed circuit board.

The invention discloses an ABS modified material with high heat resistance, high gloss and flame retardance and a preparation method thereof. The material comprises ABS, SAN (Styrene Acrylonitrile), a flame retardant, a heat resistant agent, a compatibilizer, an antioxidant and a lubricating agent. The preparation method comprises the steps of: weighing raw materials; sequentially adding the raw materials into a high mixing machine in a material mixing sequence; stirring and mixing for at least 2 minutes; putting the mixed raw materials into a double-screw extruder for extruding and granulating, wherein the screw rotating speed is 200 to 450 revolutions / minute, the screw temperature is 180 DEG C to 220 DEG C, the residence time is 1 to 2 minutes and the melt pressure is 10 to 20MPa; extruding to obtain particles; and drying the particles at 60 DEG C to 90 DEG C for 2 to 4 hours. The invention provides the ABS modified material which achieves high heat resistance, flame retardance and high gloss.

The invention discloses a lasting and effective antistatic polyolefin composite material. The lasting and effective antistatic polyolefin composite material comprises, by weight, 70-99 parts of polyolefin resin, 0-30 parts of packing, 0-6 parts of compatilizer, 0.5-5 parts of ionic liquid antistatic agent and 0.2-0.5 part of anti-oxygen. The invention further discloses a preparation method of the lasting and effective antistatic polyolefin composite material. The lasting and effective antistatic polyolefin composite material is low in additive amount of the antistatic agent, superior in antistatic performance, the surface resistance can reach 108-1,011 ohm, and the lasting and effective antistatic polyolefin composite material is little influenced by the temperature and humidity, is lasting in antistatic performance and is capable of being applied to various fields with antistatic and dust-free requirements.

The invention discloses a method for preparing olyphosphate ester flame retardant with a bicyclic phosphate ester structure, which belongs to the polymerization type organophosphorous flame retardant structure and preparation method technical field. The invention is characterized in that: polyphosphate ester provided with a repeating unit structure shown at right is prepared, wherein, Ar is equal to bisphenol A, bisphenol S or hydroquinone. The method has the advantages that: the flame retardant has the characteristics of good heat stability, high decomposition temperature, narrow decomposition intervals, good char-forming property and so on. The method can be used for the flame-retarding modification of materials with higher processing temperature such as polyester, polyamide, polycarbonate, a blend of the polyester, the polyamide and the polycarbonate and so on. The preparation method is simple and easy to control.

The invention discloses a multi-element ring-containing compound, application and an organic electroluminescent device. The molecular design is carried out on the multi-element ring-containing compound, so that low molecular LUMO energy level (-4.0 to -6.0 ev) is effectively realized, and the LUMO energy level of the molecule can be well matched with the HOMO of a hole transport material, when themulti-element ring-containing compound is used as a hole doping material in the organic electroluminescent device, the hole concentration and the hole mobility can be effectively improved, and the hole transmission and injection efficiency can be improved. Meanwhile, through accurate regulation and control of the molecular structure, the molecule has good thermal stability, low volatility and high decomposition temperature, and can be uniformly and stably distributed in a specific functional layer.

The invention discloses compounds containing phosphorus, nitrogen and transition metal elements. The compounds with the structure also contain transition metal with a catalytic flame-retardant effect besides phosphorus and nitrogen elements required in the traditional flame retardant. A method for preparing the compounds with the structure is simple; and the obtained product has higher yield, does not contain halogen, is environment-friendly, has high thermal decomposition temperature, and can be used for flame-retardant engineering plastic. A general structural formula of the compounds is shown in the following formula (I).

The invention relates to a melt-processable modified polyvinyl fluoride (PVF) resin which is polymerized by vinyl fluoride, ethylene, one or more of CF2=CXY and one or more of CF2=CFRf. Reaction monomers are subjected to a copolymerization reaction under the action of an initiating agent in an aqueous phase or an emulsion, reaction temperature ranges from 40 DEG C to 100 DEG C, and reaction pressure ranges from 1 MPa to 10 MPa. According to the melt-processable modified polyvinyl fluoride resin, high-temperature performance of the PVF resin is kept, treatment temperature of the resin is reduced simultaneously, conventional melt processing can be used for processing the resin, and obtained thin-film materials have good combination properties.

The invention relates to the technical field of a chemical fiber textile flame-retardant material, particularly to a preparation process of a colorful polyester fiber. The preparation process comprises the following steps: drying, grinding, mixing, melting, spinning, after-processing and shaping raw materials to obtain a finished product. The colorful polyester fiber prepared by adopting the process has good spinning property, good flame-retardant effect, high decomposition temperature, good heat stability and excellent dyeing property; the color is brighter compared with the ordinary dyeing fiber, and the color fastness is high.

The invention discloses an organic compound containing xanthene and an application thereof. A structural general formula of the organic compound is shown as a general formula (1). The vitrification temperature of the organic compound is high, the molecular thermal stability is strong, the organic compound has appropriate HOMO and LUMO energy level and high Eg, and the photoelectric property of an OLED device and life of the OLED device are effectively increased through optimization of a device structure.

The present invention discloses an active-hydrogen-containing curing agent having a phosphorus group, and a flame retardant cured epoxy resin which can be prepared via an addition reaction between the active hydrogen and the epoxide group of an epoxy resin. The cured flame retardant epoxy resin is environmentally friendly and is suitable for printed circuit board and semiconductor encapsulation applications. The phosphorus group of the curing agent has a chemical structure as follows: wherein Ar is a substituted or un-substituted phenyl or phenoxy.

The invention provides a colored flame retardant polypropylene fiber as well as a preparation method and application thereof. The fiber comprises the following components by weight: 1-10 parts of a color master batch, 1-20 parts of a flame retardant master batch and 98-70 parts of polypropylene fiber forming slices; the flame retardant master batch is a blend of a phosphorous flame retardant, modified magnesium hydroxide, modified nano aluminum hydroxide and the polypropylene fiber forming slices, and the parts of the phosphorous flame retardant, the magnesium hydroxide and the aluminum hydroxide by weight equal 10:3-5:0-1.5. The flame retardant has the advantages of excellent performance, improved pigment dispersivity and polypropylene fluidity, improved spinning performance, high decomposition temperature, good thermal stability, less smoke amount, no toxicity, no corrosiveness and no suffocation, and does not affect original performance of materials and production requirements basically; the performance indexes of obtained polypropylene filament yarn meet standard requirements; the fiber is soft and elastic, and has the advantages of good flame retardant performance and long flame retardant period.

The present invention relates to a gas distribution apparatus, and to a substrate-processing apparatus comprising same. The present invention provides a gas distribution apparatus comprising: a first gas distribution unit which sprays at least two process gases over a substrate through different routes; and a second gas distribution unit which sprays process gas, having a decomposition temperature higher than the average of the decomposition temperatures of said at least two process gases, over the substrate. The first gas distribution unit is divided into at least two subunits which are arranged about the second gas distribution unit, and which can be combined together or separated from each other. The present invention also provides a substrate-processing apparatus comprising the gas distribution apparatus.

The invention belongs to the technical field of photoelectric material, and concretely relates to a benzene-substituted phenothiazine unit-based luminescent material, an intermediate thereof and an organic photoelectric device made by the luminescent material. The luminescent material takes phenothiazine as an initial reaction raw material, the intermediate is prepared through an Ullmann reaction, and a target compound is obtained through the Ullmann reaction or a Suzuki reaction. The material has the advantages of single structure and definite molecular weight; has high decomposition temperature and low sublimation temperature, and the luminescent material with high purity cab can be easily obtained through sublimation. The material has good luminescence performance as a luminescent layer of the organic photoelectric device and can be used for an organic micromolecule light emitting diode.

The invention relates to a hole-transporting blue color compound, which is a fluorine derivative based on 9, 9-bi-(4-(bi-p-methypheny) aminophenyl). The preparation method is to first mix 9, 9-bi-[4-(N, N-bi-p-toluidine) phenyl]-2-dibromofluorine and boric acid pinacol ester of conjugate radicle, or to mix 9, 9-bi-[4-(N, N-bi-p-tolyl-amino) phenyl] fluorine -2, 7-bi-boric acid pinacol ester and bromide of conjugate radicle; and then add in toluene, potash solution, aliquat336 and catalyst tetrakis (triphenylphosphine) palladium, and heat and reflow for 10 to 30 hours in nitrogen environment; when the reaction is done, decompress, remove the solution and get the target product, the derivative based on 9, 9-bi-(4-(bi-p-methypheny) aminophenyl) fluorine substituted by unilateral conjugate radical. The compound can be used as the hole-transporting layer and the luminescent layer as well in electroluminescent devices.