34 results about "P-benzoquinone dioxime" patented technology

The invention discloses a high-temperature-resistant cable sheath material and a preparation method thereof. The sheath material comprises the following raw materials in parts by weight: 70-80 of high density polyethylene, 20-30 of ethylene-propylene-diene monomer, 10-15 of maleic anhydride grafted polyethylene, 5-10 of bisphenol A novolac epoxy resin, 8-12 of diphenyl tolyl phosphate, 4-8 of dioctyl maleate, 0.5-1 of di(tert-butylperoxyisopropyl)benzene, 2-3 of p-benzoquinone dioxime, 1-2 of triallyl isocyanurate, 3-5 of paraffin oil, 2-3 of active zinc oxide, 10-15 of magnesium hydroxide, 5-10 of aluminum hydroxide, 4-6 of talcum powder, 8-12 of fly ash, 5-10 of nano bauxite, 2-3 of dibutyltin dilaurate, 1-2 of an anti-aging agent MB, 1-2 of an anti-aging agent TPPD, and 4-6 of a composite filler. The sheath material prepared by the invention not only has good high temperature resistance and can be used in a 125 DEG C working environment for a long time, but also has good flame retardant effect, has the oxygen index of more than 35%, has non halogen and low smoke, and solves the problem of poor heat resistance of a high-flame-retardant sheath material.

The invention provides a beneficiation reagent for copper sulfide ore. The reagent is prepared from diesel oil, cyanoethyl diethyl dithionocarbamate, isopropyl ethionine ester, phenylethyl isopropyl phenyl phenol polyoxyethylene ether, para-benzoquinone dioxime, sodium oleate, sodium fluoride, sodium sulfide and an activator. Through application of the reagent in the beneficiation of the copper-nickel polymetallic sulfide ore, the content of magnesium oxide in copper-nickel mixed concentrate can be reduced, and the metal recovery rate of the copper-nickel polymetallic sulfide ore can be obviously improved, so that the existing copper-nickel ore resources are fully, efficiently and comprehensively utilized.

The invention discloses a butyl adhesive tape primer for a roof TPO waterproof roll, and application thereof. The application comprises the following steps: applying the primer to a construction matrix, and then adhering a butyl adhesive tape to the surface of the primer. Raw materials of the butyl rubber tape comprise a first butyl rubber matrix and an oxide, and the oxide is selected from one ora combination of more of manganese dioxide, zinc oxide, lead dioxide and lead tetroxide; the primer comprises, by weight: 8-25% of a second butyl rubber matrix, 1-15% of a second tackifying resin, 0.2-2% of a cross-linking agent, and 65-85% of an organic solvent; and the cross-linking agent is p-benzoquinone dioxime, The primer disclosed by the invention has a synergistic effect with conventionaloxide-containing butyl rubber after construction, so that the peel strength, persistent adhesion, water resistance and the like of the butyl rubber tape can be remarkably improved, and particularly,the problem that the performance of the butyl rubber tape is seriously reduced due to long-term soaking of concrete can be solved.

The invention discloses a vulcanized rubber or thermoplastic rubber and metal adhesive which comprises parabenzoquinone dioxime-bis(1,3,5-tritertiary butyl-4-oxocyclohexyl-2,5-dialkylene)-ether, parabenzoquinone dioxime-bis(1,3,5-tritertiary butyl-4-oxocyclohexyl-2,5-dialkylene)-ether halogenated rubber, a metal oxide such as zinc oxide or magnesium oxide, inert color filler carbon black or titanium dioxide, a solvent such as arene, chlorinated solvent or ketone solvent, a polymaleimide compound such as N,N'-m-phenylene dimaleimide or diphenylmethane dimaleimide, and a vulcanizing agent such as sulfur, selenium or tellurium. The adhesive is mainly characterized in that the adhesive does not contain aromatic multi-nitro compounds and has the performance of preheating resistance or meets the requirements of an injection moulding process.

The invention relates to a wood adhesive for building decoration and furniture, which is composed of the following components: phenolic resin, fluorosilicone resin, hydrogenated rosin, carbo resin, isobutyl propionate, methylaniline, butyl acetate, stearin Acid glyceride, polyhexamethylene guanidine hydrochloride, methyl p-hydroxybenzoate, vanillin, nano-zirconium phosphate silver-loaded antibacterial agent, vanadium trioxide powder, boron trioxide powder, molybdenum trioxide powder, Limestone powder, graphite fiber, rosin powder, carbon black, boron carbide powder, dibasic lead stearate, tri(butoxyethyl) phosphate, hexabromobenzene, sodium stannate, ethylene bisstearate Amide, aminoethylpiperazine, oleic acid amide, p-benzoquinone dioxime, 4,4'-diaminobiphenyl, polytrimethylene adipate. The product of the invention has comparatively superior properties of flame retardancy, acid and alkali resistance, anti-mildew and antibacterial performance, and improves product performance.

The invention provides an insulating composition for electric cable outer sheaths, wherein the insulating composition comprises, by weight, 60-70 parts of ethylene propylene diene monomer, 30-40 partsof low density polyethylene, 0.5-2 parts of polyethylene wax, 4-10 parts of an antioxidant, 0.5-3 parts of p-benzoquinone dioxime, 2-5 parts of dicumyl peroxide, 50-100 parts of a flame retardant filler, and 1-5 parts of a synergistic flame retardant. According to the present invention, by adding an appropriate amount of polyethylene wax to the blended composition, the entanglement effect of thepolymer molecular chain is reduced, the processing property of the blended composition is improved, magnesium hydroxide is wetted, and the interface compatibility between magnesium hydroxide and polymers is improved, such that magnesium hydroxide is uniformly dispersed in the polymer, and the mechanical property reducing of the blended composition due to the agglomeration of the magnesium hydroxide particles is avoided; and the invention further provides a flame retardant composition for electric cable outer sheaths, and a preparation method thereof.

The invention discloses a method for preparing dibenzoyl-p-quinonedioxime, particularly to a method for one-step synthesis of dibenzoyl-p-quinonedioxime from p-benzoquinone dioxime and benzoyl chloride in chloroform, belonging to the technology field of organic synthesis. The method has the advantages of high yield of dibenzoyl-p-quinonedioxime, mild reaction conditions, chloroform as solvent, complete solvent recycling, reduced production cost, and environmental friendliness.

The invention relates to a butyl rubber composite gel oil absorption material and a preparation method thereof. A three-dimensional network spatial structure is formed by using butyl rubber as a base material, disulfur dichloride as a cross-linking agent and octyl phenol formaldehyde resin and parabenzoquinone dioxime as accelerants. The obtained oil absorption material is small in density, large in oil absorption, fast in rate of adsorption and capable of adsorbing multiple oil products; the oil absorption material can be repeatedly recycled through simple extrusion treatment, so that the cost is effectively reduced. The oil absorption material is a novel environmental-friendly material and widely applied and can be used for recovery of spilled oil in seaborne or land water bodies, treatment of oily wastewater and the like.

The invention relates to a sports venue track material. The material is prepared from phenolic resin, ammonium polyphosphate, hexabromo-benzene, 2,2'-ethylenedioxydiethyl bis(2-ethylhexanoate), phenol, talcum powder, octamethyl silicone oil, sweet potato starch, calcium formate, chromic chloride, metallocene, zirconium boride powder, ferric trichloride, methyl acetate, citronellyl formate, N,N-dimethylaminoethyl acrylate, aziridine crosslinking agent, p-Benzoquinone dioxime, diaminodiphenyl-methane, dibasic lead phthalate, fluoboric acid, dextrin, sodium methallyl sulfonate, methanesulfonic acid, sodium pyrosulfite, polymeric alkylol amine, calcium dodecyl benzene sulfonate, titanium tetraisopropanolate, vinyl pyrrolidone and lauryl diethanolamine. The product has excellent flame retardance, acid and alkali resistance, mildew resistance and mold resistance and is high in rebound rate, and the product performance is improved.

The present invention relates to catalytic synthesis process of p-benzoquinone dioxime, belongs to the field of organic synthesis technology, and is especially catalytic synthesis process of p-benzoquinone dioxime through nitrosating phenol with acetic acid as catalyst. The technological scheme of the present invention adopts phenol, sodium nitrite, sulfuric acid, acetic acid and hydroxylamine chloride as materials. Phenol, sodium nitrite and acetic acid mixture are first nitrosation reacted; and through the subsequent washing with small amount of water, and adding hydroxylamine chloride for oximation, p-benzoquinone dioxime product is obtained. The process has mild reaction condition, low cost and high p-benzoquinone dioxime yield.

The present invention relates to catalytic synthesis process of p-benzoquinone dioxime, belongs to the field of organic synthesis technology, and is especially catalytic synthesis process of p-benzoquinone dioxime with p-benzoquinone and hydroxylamine chloride as material and calcium carbonate as catalyst and in certain temperature. P-benzoquinone dioxime, p-benzoquinone and hydroxylamine chloride are first reacted in alcohol inside a reactor; and through the subsequent vacuum evaporation to eliminate solvent, adding HCl and water through stirring and suction filtering, product is obtained. The process has high yield, high product purity, mild reaction condition, low energy consumption, environment friendship, and cheap and reuseable catalyst.

The invention discloses a method for preparing parabenzoquinone dioxime, relating to a catalytic synthesis method for parabenzoquinone dioxime. Under the existence of certain concentration of sulphuric acid, carrying out nitrosification on phenol dissolved in an NaOH solution with sodium nitrite to prepare parabenzoquinone monooxime; then adding hydroxylamine to the prepared parabenzoquinone monooxime and oximating to prepare parabenzoquinone dioxime. The parabenzoquinone dioxime is prepared by the residualtitration method which comprises the steps of dissolving the phenol in the 28%-32% NaOH solution and then mixing with 93%-97% sodium nitrite solution at -3 DEG C -5 DEG C, and then guiding into 28%-32% sulphuric acid solution at -3-5 DEG C by using a conduit. The invention has the advantages that the reaction yield is high; the purity of target matter can reach 98 percent; the content value of the nitrogen element in parabenzoquinone dioxime is not less than 20.26 percent; the carbon, hydrogen content and the nitrogen content of products are effectively increased and the quality stability of the products is effectively increased.

The invention discloses a fixed and integrated elastic height-limitation frame transverse beam material taking basalt fibers as a framework, aiming at solving the problem that the rigidity of a height-limitation frame transverse beam is too great to cause serious traffic accidents. The invention provides the fixed and integrated elastic height-limitation frame transverse beam material taking butadiene styrene rubber as a binding agent and the basalt fibers as the framework. A transverse beam of a fixed and integrated elastic height-limitation frame is produced by basalt fiber cloth and the butadiene styrene rubber is used as the binding agent to prepare glue slurry, wherein the glue slurry is prepared from butadiene styrene rubber powder, benzoquinone dioxime, 2,2'-dithiodibenzothiazole, #120 gasoline and carbon black according to the mass ratio of 10 to 2 to 1 to 20 to 1. According to the fixed and integrated elastic height-limitation frame transverse beam material, the tensile strength of the height-limitation frame transverse beam material can be greater than 415MPa, the yield strength is greater than 254MPa, the elongation ratio is greater than 260 percent, the section shrinkage ratio is greater than 5 percent and the elastic modulus is not greater than 23GPa. The material provided by the invention can be used as the material for preparing the fixed and integrated height-limitation frame transverse beam.

The invention provides a method for preparing parabenzoquinone dioxime, and relates to a method for enzymatically synthesizing the parabenzoquinone dioxime. The method comprises the following steps of: carrying out nitrosation on phenol dissolved in solution of NaOH with sodium nitrite to prepare parabenzoquinone monooxime in the presence of certain concentration of sulfuric acid; and then addinghydroxylamine into the prepared parabenzoquinone monooxime for oximation to prepare the parabenzoquinone dioxime. When the parabenzoquinone monooxime is prepared, a reverse addition method is adopted, namely mixing 5 to 20 percent solution of NaOH dissolved with the phenol and 93 to 97 percent solution of sodium nitrite at the temperature of between 3 DEG C below zero and 5 DEG C; then leading the mixture into 5 to 20 percent solution of sulfuric acid through a conduit at the temperature of between 3 DEG C below zero and 5 DEG C; and adding calcined soda into the solution of NaOH dissolved with the phenol. The method has the advantages that: the reaction yield is high, the purity of the target can reach 98 percent, and the nitrogen element content in the parabenzoquinone dioxime can be more than or equal to 20.26 percent; the method not only effectively improves the contents of nitrogen, hydrogen and carbon of products, but also effectively improves product quality stability. The method has superior technological properties that cannot be replaced by other vulcanization systems.

The preparation method comprises the following steps: adding phenol into an aqueous solution of sodium nitrite and sodium hydroxide to prepare a mixed solution of sodium phenolate and sodium nitrite, dropwise adding the mixed solution into a sulfuric acid solution at a preset temperature, and carrying out stirring reaction, filtering and washing to prepare an intermediate p-nitrosophenol wet material; dropwise adding a hydroxylamine hydrochloride aqueous solution into the intermediate p-nitrosophenol wet material, stirring for reaction, filtering and washing to obtain a p-benzoquinone dioxime wet material; the preparation method comprises the following steps: dissolving a p-benzoquinone dioxime wet material in an aqueous solution of sodium hydroxide to obtain an alkaline p-benzoquinone dioxime solution, dropwise adding a dilute NaClO solution into the alkaline p-benzoquinone dioxime solution, stirring, reacting, filtering and washing to obtain a p-dinitrobenzene product. According to the method, the raw material cost is low, only water is involved as a reaction solvent in the whole process, the operation process is simple, a wet material intermediate does not need to be dried in the process, and the finally prepared p-dinitrosobenzene has excellent adhesive performance.

The invention discloses a method for preparing parabenzoquinone dioxime, which comprises the following steps: 1) preparing sodium phenolate solution: mixing 5%-20% of NaOH solution and phenol solution and sodium nitrite solution, preparing the sodium phenolate solution, and adding sodium carbonate with a weight of 1/10 of the NaOH weight; 2) preparing parabenzoquinone monoxime, guiding the sodium phenolate solution into 28%-32% of acid liquor through a duct, and adding the sodium nitrite solution for the nitrosation reaction, the whole process being operated under the condition of -3 DEG C to 5 DEG C; 3) cleaning the solution, cleaning the prepared parabenzoquinone monoxime to neutral by using pure water, and measuring a decomposition point; 4) preparing the parabenzoquinone dioxime, adding water into the prepared parabenzoquinone monoxime and stirring, controlling the temperature within 45 DEG C to 62 DEG C, and pouring hydroxylamine and oximating and obtaining the product. The invention has the advantages that the reaction yield is high; the purity of target matter can reach 98 percent; and the content value of the nitrogen element in parabenzoquinone dioxime is not less than 20.26 percent.

The present invention provides a PVC-U water drain pipe material, which comprises the following raw materials: chlorinated polyethylene, a clay nanometer composite material, linear low density polyethylene, an acid-ester mixture, dicumyl peroxide, p-benzoquinone dioxime, aluminum distearate, zinc isooctanoate, ethoxylated lauramide, calcium montanate, nickel powder, di(3,4-dimethylbenzylidene)sorbitol, carnauba wax, glyceryl monostearate, carbide slag, calcium hexaluminate, brucite nanometer fibers, poly(1,2-propylene glycol adipate), filling master batch, bisphenol A phosphate (iv) cetyl alcohol ester, dilauryl thiodipropionate, an aluminum-free stabilizer, titanium dioxide powder, paraffin and glycerol tristearate, wherein the clay nanometer composite material is a layered silicate nanometer material. The PVC-U water drain pipe material has characteristics of aging resistance, good flexibility, low temperature resistance, high temperature resistance, and strong rapid crack growth fracture toughness.

The invention provides a preparation method of p-benzoquinone dioxime, which comprises the following steps: carrying out nitrosation reaction on ethyl nitrite and phenol under the action of an acidic reaction accelerator to generate an intermediate p-benzoquinone monooxime and a byproduct ethanol, and directly carrying out oximation reaction on the intermediate p-benzoquinone monooxime and hydroxylamine hydrochloride to generate p-benzoquinone dioxime, wherein the whole reaction process is completed in an organic solvent; the discharge of production wastewater is reduced, and the requirement of green production is met; a byproduct ethanol obtained by nitrosation reaction can be finally distilled and recycled together with an organic solvent, so that the utilization rate of raw materials is increased; in the whole synthesis process, an inert gas is adopted to isolate air, so that disproportionation and decomposition of ethyl nitrite and oxidation of an intermediate p-benzoquinone monooxime are avoided, side reactions are reduced, the reaction conversion rate is improved, the yield and purity of p-benzoquinone dioxime are further improved, the yield is 85.0-95.0%, the purity is greater than or equal to 99.0 wt%, and the melting point is 250-255 DEG C.

An anti-fake bill allowing codes to be changeable comprises an upper bill paper layer 1 and a lower bill paper layer 2, wherein a chip groove 4 and an annular frame groove 5 are formed in the upper portion of the lower bill paper layer 2, a chip 3 is arranged in the chip groove 4, a metal frame 6 is arranged in the frame groove 5, and the space between the frame groove 5 and the metal frame 6 is filled with a glue strip 7. The glue strip 7 is composed of, part by weight, 60-70 parts of methacrylic acid, 5-20 parts of acrylic acid, 20-30 parts of diethylene glycol, 3-6 parts of benzoyl, 0.5-2 parts of methyl toluidine, 0.1-0.3 part of benzoquinone, 2-4 parts of xylopropamine, 1-4 parts of dicumyl peroxide, 0.1-0.5 part of saccharin, 3-6 parts of triethylamine, 0.1-0.3 part of white carbon black, 1-4 parts of ethyl acetate, 0.5-3 parts of propylgallate, 0.3-0.9 part of p-benzoquinone dioxime, 1-3 parts of polysulfone resin and 0.2-0.6 part of 8-hydroxyquinoline. The metal frame serves as a support in the bill, the chip is located in the space defined by the metal frame in an enclosed mode, external force on the bill is resisted, the bill is prevented from being bent to be deformed or damaged, and completeness of the chip is guaranteed.