330 results about "Diphenylamine" patented technology

The invention discloses a preparation method of a fluorine-containing carbazole phosphonic acid compound, which solves the technical problems of harsh reaction conditions, high raw material price and low yield in the existing preparation process, 4-trifluoromethoxyaniline and 4-trifluoromethoxyiodobenzene are used as initial raw materials, and Ullmann reaction is performed under a solvent-free condition to obtain 4, 4 '-difluorocarbazole phosphonic acid. The preparation method comprises the following steps: taking 3, 4 '-bis (trifluoromethoxy) diphenylamine as a raw material, carrying out palladium acetate catalytic oxidation cyclization to obtain 3, 6-bis (trifluoromethoxy) carbazole, reacting the 3, 6-bis (trifluoromethoxy) carbazole with 2-bromoethyl dimethyl phosphonate to obtain N-(2-ethyl dimethyl phosphonate) 3, 6-bis (trifluoromethoxy) carbazole, and finally hydrolyzing to obtain the N-(2-ethyl phosphonate) 3, 6-bis (trifluoromethoxy) carbazole. The reaction process is simpler to operate, the yield is guaranteed, and the method is suitable for large-scale production. In the preparation method disclosed by the invention, a solvent is not required to be used in multiple steps, the reaction is performed under a solvent-free condition, and the preparation method is high in safety and environment-friendly.

The invention discloses a method for passivating a perovskite solar cell by using diphenylamine ammonium salt and a derivative thereof, and belongs to the technical field of perovskite solar cells. According to the method, diphenylamine ammonium salt and a derivative thereof are introduced as an interface modification layer of perovskite through a solution spin-coating process, so that in-situ passivation is realized. The diphenylamino ammonium salt and the derivative thereof can effectively reduce surface defects of perovskite, passivate uncoordinated lead ions, supplement iodine vacancies, significantly reduce non-radiative recombination of a perovskite layer and promote charge extraction by virtue of unique properties of the diphenylamino ammonium salt and the derivative thereof, so that the open-circuit voltage and fill factors of the perovskite solar cell are improved. Meanwhile, large-volume ammonium cations can be gathered on a crystal boundary, so that the defect of the crystal boundary is filled, and ion migration is inhibited. In addition, after passivation, moisture can be effectively prevented from invading the three-dimensional perovskite structure, and the humidity stability and the storage stability of a cell device are remarkably improved. The invention aims at improving the photoelectric conversion efficiency of the perovskite solar cell and realizing the long-term stability of the device performance.

The invention relates to a method for synthesizing 1, 2-allene ketone, and discloses a method for synthesizing 1, 2-allene ketone by taking eneyne, 1, 4-dihydropyridine and benzoyl fluoride as substrates, 2, 4, 5, 6-tetra (diphenylamino)-isophthalonitrile as a photocatalyst, 5, 6, 7, 8-tetrahydro-3-(2, 6-diisopropyl phenyl)-4H-cycloheptyl thiazole perchlorate as N-heterocyclic carbene, cesium carbonate as alkali and acetonitrile as a solvent through a one-pot method. And reacting at room temperature for 4 hours under visible light of 12W and 460nm LED blue light to obtain allene ketone. The reaction conditions are mild, and the method has good functional group tolerance.

The invention relates to the technical field of luminescent materials, and discloses an aggregation-induced emission material, nanoparticles as well as a preparation method and application thereof, the structural general formula of the aggregation-induced emission material is as follows: # imgabs0 #, R is selected from one of the following structures: # imgabs1 # aggregation-induced emission material takes a pyridine group as an acceptor unit, and the acceptor unit is selected from one of the following structures: 1 # imgabs2 # aggregation-induced emission material; a carbon-carbon double bond and a thiophene unit are used as pi bridges, and diphenylamine, bis (4-ethylphenyl) amine and bis (4-(tert-butyl) phenyl) amine are used as strong electron donors. The donors not only provide strong electron supply ability, but also become efficient rotors due to highly twisted molecular conformation, and endow the aggregation-induced emission material with long emission wavelength and aggregation-induced emission activity.

The invention relates to the field of lithium manganate positive electrode materials, in particular to a lithium manganate positive electrode material and a preparation method thereof, a positive electrode plate and a battery, which are used for solving the problems of Jahn-Teller distortion of Mn < 3 + >, Mn dissolution and low conductivity in circulation. Lithium carbonate, manganous-manganic oxide, potassium carbonate, aluminum nitrate and absolute ethyl alcohol are subjected to ball milling and then sintered to obtain K / Al co-doped lithium manganate powder, then the K / Al co-doped lithium manganate powder is coated with an acetylferrocene / diphenylamine polymer, finally, the K / Al co-doped lithium manganate powder is coated with an AlF3 (at) CeF3 suspension, and finally the lithium manganate positive electrode material is obtained. According to the lithium manganate positive electrode material, the electronic conductivity is greatly improved, the rate capability is improved, and the cycling stability is improved; and the material has excellent cycling stability and rate capability.

The invention belongs to the technical field of reverse osmosis membranes, and particularly relates to a high-flux reproducible chlorine-resistant reverse osmosis composite membrane and a preparation method thereof.Monomer 3, 5-diamino-1, 2, 4-triazole is added into a water-phase solution, functional amino and imino groups of the monomer react with acyl chloride groups, and the high-flux reproducible chlorine-resistant reverse osmosis composite membrane is prepared by adjusting the structure of a polyamide layer; the separation performance of the membrane can be improved while the water flux of the membrane is not obviously reduced. According to the reverse osmosis composite membrane preliminarily obtained through interfacial polymerization reaction, aniline dimer diaminodiphenylamine is adopted as a modification material, and chemical grafting modification of the membrane surface is carried out on a polyamide composite membrane. The characteristic that the redox potential of a secondary amine group on diaminodiphenylamine is lower than that of an amide group on a polyamide polymer is utilized, the secondary amine group can serve as a sacrificial group to react with active chlorine preferentially, protection of a polyamide separation layer is achieved, and therefore the chlorine resistance of the composite membrane is improved. In addition, diaminodiphenylamine has the same reversible redox characteristic as aniline, and reversible regeneration of chlorine resistance of the grafted membrane can be realized through Na2S2O3 reduction; therefore, the high-flux reproducible chlorine-resistant reverse osmosis composite membrane disclosed by the invention is a reverse osmosis composite membrane based on aniline dimer surface modification, and has the characteristics of high flux, reproducibility, excellent chlorine resistance, good water separation performance, better hydrophilicity and salt rejection rate.

The invention relates to the technical field of industrial lubricating oil, in particular to a preparation method of polyether type heavy-load worm and gear oil, which comprises the following preparation steps: S1, synthesizing an intermediate; s2, synthesizing an ionic liquid; s3, compounding is carried out; and S4, carrying out post-treatment. The ionic liquid containing the trifluoromethylsulfonyl imide group and 4, 4 '-dioctyl diphenylamine generate a synergistic effect, the flash point of the polyether type heavy-load worm and gear oil can be increased by 10-30 DEG C, meanwhile, the three technical problems of flash point, oxidation resistance and low-temperature fluidity are solved, and the polyether type heavy-load worm and gear oil is particularly suitable for heavy-load worm gear transmission systems such as wind power gear boxes and metallurgical machinery.

The invention discloses the technical field of photocatalysis, and particularly discloses a preparation method of a visible-light response type covalent organic frame-TiO2 composite material, which comprises the following steps: adding TiO2 into a mixed solvent, carrying out ultrasonic dispersion, dropwise adding an H2PtCl6 aqueous solution while stirring, reacting under the irradiation of a mercury lamp, centrifuging, washing and drying to obtain a Pt-TiO2 material; the preparation method comprises the following steps: dispersing a Pt-TiO2 material in an organic solvent, adding 2-hydroxybenzene-1, 3, 5-tricarboxaldehyde and 4, 4 '-(benzo [c] [1, 2, 5] thiadiazole-4, 7-diyl) diphenylamine, carrying out ultrasonic treatment for 3-8 minutes, and then adding acetic acid; after 2-4 times of liquid nitrogen freezing-degassing, sealing, and reacting for 2-5 days at the temperature of 110-130 DEG C; and centrifuging, washing and drying to obtain the covalent organic frame-TiO2 composite material. The novel covalent organic frame-TiO2 composite material prepared by the invention effectively expands the visible light absorption range of TiO2, has strong visible light absorption and strong photocatalytic performance, can efficiently catalyze hydrogen evolution, and has excellent light stability and repeatability in photocatalytic hydrogen evolution reaction.

The invention relates to a preparation method of a waterborne polyurethane anticorrosive coating, which comprises the following steps: carrying out drying treatment on poly (1, 4-butylene adipate) glycol; the preparation method comprises the following steps: putting polyadipic acid-1, 4-butanediol ester glycol and 2, 2-dimethylolpropionic acid into a reaction container, adding a butanone solution of isophorone diisocyanate and a catalyst, and heating and reacting in an oil bath for 3-5 hours in a nitrogen atmosphere to obtain a prepolymer A; adding the prepolymer B and 4, 4 '-dithiodiphenylamine into a reaction container, adding m-phthaloyl hydrazine, and carrying out reduced pressure distillation on a solvent in a reaction system; adding a certain amount of triethylamine into the reaction container and stirring; and adding a predetermined amount of distilled water, and stirring to obtain the waterborne polyurethane anticorrosive paint. The waterborne polyurethane anticorrosive paint prepared by the invention not only has excellent corrosion resistance, but also can warn the tiny damage of a coating and the local corrosion process of metal at the same time, so that effective protection of a metal material is realized, and the service life of the metal material is remarkably prolonged.

The invention discloses a preparation method of a polyamide-imide-polyimide copolymer resin binder and a semiconductor element temporary packaging adhesive film, and the preparation method comprises the following steps: under the protection of inert gas, dissolving flexible long-chain aromatic diamine, siloxane diamine and 4, 4 '-dithio diphenylamine in a polar organic solvent, and stirring to obtain a mixed solution; the preparation method comprises the following steps: adding an acid-binding agent, uniformly stirring and mixing in an ice bath, adding trimellitic anhydride acyl chloride for reaction, heating to 15-45 DEG C, adding flexible long-chain dianhydride for reaction, adding an end-capping reagent for end capping, and diluting; adding a catalyst and a water absorbent into the diluted reaction liquid to carry out imidization treatment to obtain polyamide-imide-polyimide copolymer resin; diluting the polyamideimide-polyimide copolymer resin adhesive until the solid content is 15-25%, adding siloxane epoxy resin, and uniformly stirring and mixing, so as to obtain the polyamideimide-polyimide copolymer resin adhesive. The heat-resistant adhesive has excellent heat resistance and cohesiveness, and no adhesive residue exists in the stripping process.

The invention relates to the field of ice-resistant coatings, and discloses a low-temperature self-healing photo-thermal ice-resistant coating as well as a preparation method and application thereof. The method is carried out in the presence of an organic solvent and comprises the following steps: (1) carrying out first heating treatment on dihydroxyl-terminated polydimethylsiloxane, isophorone diisocyanate and dibutyltin dilaurate to obtain a prepolymer; (2) carrying out second heating treatment on the prepolymer, 4, 4 '-dithio diphenylamine and 4, 4'-bis (hydroxymethyl)-2, 2 '-bipyridine, so as to obtain a polymer SH; and (3) contacting and mixing the polymer SH and graphene oxide to obtain the photo-thermal ice-resistant coating. The photo-thermal ice-resistant coating prepared by the method provided by the invention is applied to the surface of a fan blade as an ice-resistant coating, has good mechanical durability and photo-thermal performance, and is excellent in ice resistance.

The invention discloses an easily degradable modified agricultural mulching film and a preparation method thereof, and relates to the field of high polymer materials. When the easily degradable modified agricultural mulching film is prepared, oyster shell powder sequentially reacts with 3-bromopropyltrimethoxysilane, 4-methylpyridine, 5-(7-bromobenzo [C] [1, 2, 5] thiadiazole-4-yl) thiophene-2-formaldehyde and 4-(diphenylamine) phenylboronic acid pinacol ester, and functionalized oyster shell powder is prepared; and reacting urea with formaldehyde, reacting with monopotassium phosphate and chitosan, mixing with the functionalized oyster shell powder, performing injection molding, and drying to obtain the easily degradable modified agricultural mulching film. The easily-degradable modified agricultural mulching film prepared by the invention has good mechanical properties and capabilities of resisting bacteria, performing photocatalytic degradation, adjusting the pH value of soil and degrading the soil into fertilizers.

The invention discloses a fluorenyl diphosphoric acid type self-assembled monomolecular layer hole transport material which takes a fluorene unit as a core and a diphenylamine group as a donor, and is a self-assembled monomolecular layer hole transport material with two phosphoric acid anchoring groups. The preparation method of the hole transport material comprises the following steps: (a) carrying out substitution reaction on 2, 7-dibromofluorene and dibromo-substituted alkane to obtain an intermediate I; (b) carrying out rearrangement reaction on the intermediate I and triethyl phosphite to obtain an intermediate II; (c) carrying out coupling reaction on the intermediate II and a diphenylamine derivative to obtain an intermediate III; and (d) mixing the intermediate III with a hydrolysis reagent, and carrying out hydrolysis reaction to obtain the fluorenyl diphosphonic acid type self-assembled monomolecular layer hole transport material. The invention also discloses an application of the material in a trans-perovskite solar cell. The hole transport material is low in synthesis cost and simple in route, has dual functions of hole transport and defect passivation, and has two phosphate groups to enhance the self-assembly strength and stability of the hole transport material.

The present invention discloses a lubricating oil additive for a flexible fuel engine, which comprises the following raw materials: overbased calcium alkyl salicylate, overbased sulfurized calcium alkylphenate, 4-pyridine ethylpropylene polymer, alkyl diphenylamine, 2,6-di-tert-butyl a-dimethylamino-p-cresol, and nano boron nitride BNNS. The present invention also discloses a lubricating oil composition for a flexible fuel engine, which comprises the above-mentioned lubricating oil additive for a flexible fuel engine, and further comprises an emulsifier and a base oil. The present invention can solve the key problem that a large amount of water is generated during the work combustion process of a flexible fuel engine, resulting in hydrolysis of dispersants, friction reducers and anti-wear agents in engine oil, damage to the molecular structure and loss of lubricating function. At the same time, it also solves the technical problem of difficult low-temperature cold start of a flexible fuel engine caused by water.

The application discloses a kind of purification devices for diphenylamine production, it is related to chemical purification technical field, including purification tank body, stirring mixing assembly and lifting mixed flow component are equipped in the purification tank body, stirring mixing assembly and lifting mixed flow component are jointly connected comprehensive drive component;The lifting mixed flow component includes multiple dispersion pipes arranged in the purification tank body, multiple dispersion pipes are evenly distributed in the circumferential of purification tank body, lifting column is slidably connected in each dispersion pipe, the top end of lifting column is fixedly connected with traction rope, the diphenylamine solution in the purification tank body can be mixed as a whole by being equipped with stirring mixing assembly, the diphenylamine solution can be fine flow mixing by being equipped with lifting mixed flow component using pressure-driven mode, stirring mixing assembly and lifting mixed flow component are jointly used to effectively ensure that the diphenylamine solution in the purification tank body is efficiently mixed, so that diphenylamine is more efficiently purified, and the use effect is good.

The utility model relates to the technical field of diphenylamine production, in particular to equipment capable of continuously producing diphenylamine, which comprises a heat insulation barrel, a stirring tank is fixedly connected to the upper end face of the heat insulation barrel, a cover plate is hermetically connected to the upper end face of the stirring tank, and a rotating shaft is rotatably connected to the lower end face of the cover plate. The surface of the rotating shaft is fixedly connected with a stirring rod, the upper end face of the cover plate is connected with a first feeding pipe in a sealed mode, the upper end face of the cover plate is connected with a second feeding pipe in a sealed mode, a heating sleeve is fixedly connected into the heat preservation barrel, and a heating wire is fixedly connected into the heating sleeve. The speed of mixed raw materials flowing into the heat preservation barrel is controlled through the second electromagnetic valve, meanwhile, the raw materials can be heated by starting the heating wire, a worker can adjust the heating temperature of the raw materials, the raw materials can be filtered through the filter screen during heating, impurities of the raw materials can be filtered out, and the impurity content of the raw materials is reduced.

The invention relates to the field of hydraulic oil complexing agents, in particular to an anti-wear hydraulic oil complexing agent with high water diversion performance and a preparation method thereof.The anti-wear hydraulic oil complexing agent is prepared from, by weight, 30-80 parts of zinc dialkyl dithiophosphate, 1-20 parts of phenolic ester type antioxidant, 1-10 parts of alkyl diphenylamine antioxidant and 1-10 parts of sulfurized calcium alkyl phenolate detergent. 5 to 50 parts of dinonyl naphthalene sulfonate antirust agent, 1 to 5 parts of azole metal deactivator and 0 to 20 parts of base oil. A hydraulic oil product prepared by the hydraulic oil complexing agent provided by the invention has excellent water diversion performance, and simultaneously meets the performance requirements of wear resistance, oxidation resistance, rust prevention and the like.

The invention discloses a triarylmethane type I photosensitive dye as well as a synthesis method and application thereof. The structure of the dye is shown as a general formula I; intramolecular charge separation is optimized by regulating substituent groups, and the generation efficiency of superoxide anions and hydroxyl radicals is remarkably improved. According to the synthesis method, 4-diphenylaminobenzaldehyde or 4-vinyl benzaldehyde is used as a raw material, efficient preparation is achieved through the steps of condensation, oxidation and the like, the raw material is easy to obtain, and operation is easy and convenient. The dye has strong absorption at the wavelength of 600-630 nm, is suitable for red light triggered photodynamic therapy (PDT), especially keeps high reactive oxygen yield under the hypoxic condition, and breaks through the oxygen dependence limitation of traditional PDT. Experiments show that the dye can induce ferroptosis of tumor cells, has the functions of fluorescence imaging and treatment, and has wide application prospects in the fields of antitumor drugs, in-vivo fluorescence labeling, photoresponsive functional preparations and the like.

The invention discloses a perovskite solar cell device and a preparation method, and belongs to the technical field of perovskite solar cell preparation, and the perovskite solar cell device comprises a first electrode layer, an electron transport layer, a perovskite light absorption layer, a hole transport layer and a second electrode layer from top to bottom in sequence, a passivation layer is arranged between the electron transport layer and the perovskite light absorption layer; the passivation layer is made of a diphenylamine passivator; the chemical structural formula of the diphenylamine passivator is shown in the specification, and in the formula, R1-R10 are respectively and independently selected from one of hydrogen, C1-C6 alkyl, carboxyl, cyano, trifluoromethyl, halogen, phosphonic acid group, C1-C6 alkyl thioether group and (CF3) 3-C-; at least five substituent groups in R1-R10 are hydrogen at the same time. By adopting the diphenylamine passivator, the stability and efficiency of the perovskite solar cell device are effectively improved. .

The invention provides a gas engine lubricating oil composition and a preparation method thereof. The gas engine lubricating oil composition of the present invention comprises: (A) an alkyl phosphate compound; (B) alkylated diphenylamine; (C) a polyisobutylene succinic acid pentaerythritol ester dispersing agent; (D) a salicylate and / or sulfonate; (E) zinc dialkyl dithiophosphate; (F) an oil-soluble organic molybdenum friction modifier; (G) a metal corrosion inhibitor; (H) a pour point depressant; (I) a major amount of a lubricating base oil. The gas engine lubricating oil composition disclosed by the invention has excellent high-temperature oxidation resistance, cleaning performance, extreme pressure anti-wear performance and anti-corrosion performance.

The invention discloses an electromagnetic shielding film and a preparation method thereof, and relates to the technical field of electromagnetic shielding, the electromagnetic shielding film is prepared from the following raw materials by weight: 70-80 parts of a functional polymer, 15-20 parts of a conductive filler, 1-3 parts of a coupling agent, 0.8-1 part of an antioxidant, 0.5-0.8 part of a slip agent, and 3-5 parts of 2-acrylamido-2-methylpropanesulfonic acid; the functional polymer is prepared from 3, 7-diamino-5-phenyl phenazine chloride and N-(4H-1, 2, 4-triazole-4-yl) diphenylamine-4, 4 '-dicarboxylic acid through a condensation polymerization reaction, and the functional polymer is a polymer with a molecular weight of 2,000-3,000 and a molecular weight of 2,000-3,000. The electromagnetic shielding film is sufficient in electromagnetic shielding performance, good in bending resistance and excellent in tensile strength, chemical stability and high and low temperature resistance.

The application belongs to the technical field of oil and gas field development, and particularly relates to a temperature-resistant and salt-resistant foaming agent for drilling and a synthesis method thereof. The synthesis method is as follows: diphenylamine-4-sodium sulfonate, isopropyl alcohol and 1,3-dibromopropane are added into a four-necked flask, stirred, heated and refluxed to obtain a mixed solution; 90-95wt% of isopropyl alcohol in the mixed solution is distilled off under reduced pressure, distilled water is added, and the whole is transferred into a separatory funnel, fully shaken, separated, and a small amount of oil phase is discarded; the pH is adjusted to 2-3, a precipitate is separated out, suction filtration is performed, and an intermediate is obtained; the intermediate is transferred into a four-necked flask with isopropyl alcohol, sodium bromoethyl sulfonate is added, the pH is adjusted to 7-8, and the product solution is obtained by heating and refluxing; the product is obtained by vacuum distillation, recrystallization and drying. The foaming agent for drilling has the advantages of good temperature resistance, salt resistance and salinity resistance.

The invention relates to the technical field of electroluminescent materials and devices, in particular to an alcohol-soluble host material for a carbon dot electroluminescent device as well as a preparation method and application of the alcohol-soluble host material. The alcohol-soluble host material for the carbon dot electroluminescent device has a structure as shown in a formula I. According to the invention, phosphate ester is introduced into the alcohol-soluble host material as a side chain, so that on one hand, the solubility of the host material in ethanol can be effectively improved, and on the other hand, the film-forming ability of the host material can be effectively improved. Diphenylamine, carbazole and carbazole derivatives are used as donors, triazine is used as an acceptor, and the host material can be endowed with the characteristic of bipolar transmission. Test results show that the alcohol-soluble host material provided by the invention has excellent alcohol solubility and film-forming ability comparable to that of a polymer host material, and also has good hole and electron transport ability, so that carrier transport is effectively balanced, and the luminous efficiency of a host-guest doped electroluminescent device is improved.

The invention discloses a compound and a preparation method thereof, a hole transport material and a perovskite solar cell, and belongs to the technical field of materials. The structure of the compound is as follows: # imgabs0 # 10lt; nlt; 10000, and n is an integer; and Ar is an aniline fluorene group or a diphenylamine group. The preparation method comprises the following steps: reacting dithienopyrrole, 4-bromobenzaldehyde and a catalyst I to obtain an intermediate I; reacting the intermediate I with bromo-succinimide to obtain an intermediate II; reacting the intermediate II, aniline fluorene or diphenylamine substances and a catalyst II to obtain an intermediate III; reacting the intermediate III with sodium borohydride to obtain an intermediate IV; reacting the intermediate IV with acryloyl chloride to obtain an intermediate V; mixing and reacting the intermediate V and an initiator to obtain the compound. As a hole transport material, the compound is relatively high in decomposition temperature, high in stability, good in film-forming property and good in mobility, and is beneficial to the photoelectric conversion effect of a perovskite solar cell.

The present invention belongs to the technical field of pesticides, and specifically relates to diphenylamine compounds and the use thereof. The compounds are as shown in general formula I, wherein R1, R3, X2, X3 and X5 each independently represent hydrogen, halogen, nitro, cyano, etc.; R2 represents haloalkyl; R4 represents nitro or haloalkyl; X1 represents halogen; and X4 represents haloalkyl. The compounds have excellent control effect on pests such as mites.

The application provides a hybrid vehicle engine lubricating oil composition and a preparation method thereof.The hybrid vehicle engine lubricating oil composition comprises the following components: (A) a benzotriazole derivative; (B) a composite antioxidant comprising an alkylated diphenylamine antioxidant and a sulfide phenolic antioxidant; (C) a polyisobutylene succinimide ashless dispersant; (D) a sulfonate and / or a sulfated alkyl phenate; (E) a zinc dialkyldithiophosphate; (F) a composite friction modifier comprising an oil-soluble organic molybdenum friction modifier and an ashless friction modifier; (G) a phosphite type extreme pressure antiwear agent; and (H) a major amount of a lubricating oil base oil; wherein the structure of the benzotriazole derivative is shown in formula (I): wherein the definitions of the groups are shown in the specification.The hybrid vehicle engine lubricating oil composition has excellent antioxidant performance, corrosion resistance and rust resistance, and good emulsion retention performance and wear resistance.

The invention discloses corrosion-resistant waterproof aluminum foil glass fabric and a preparation method thereof, and belongs to the technical field of aluminum foil composite glass fabric. The corrosion-resistant waterproof aluminum foil glass fabric sequentially comprises a waterproof glass fabric, a high-temperature-resistant adhesive layer and an aluminum foil from bottom to top, the waterproof glass fabric is obtained by padding a waterproof finishing agent; the waterproof finishing agent is mainly prepared from the following raw material components: a silane coupling agent, hydroxyl-terminated fluorine-containing dihydric alcohol, isophorone diisocyanate and polycaprolactone; the high-temperature-resistant adhesive is mainly prepared from the following raw material components: 4, 4 '-oxydiphthalic anhydride, 4, 4-(hexafluoroisopropyl) bis (p-phenoxy) diphenylamine, 3, 3'-diaminodiphenyl sulfone, 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane, 4-amino-2-hydroxybenzaldehyde and o-phenylenediamine, and the high-temperature-resistant adhesive is prepared from the following raw material components: 4, 4 '-oxydiphthalic anhydride, 4, 4-(hexafluoroisopropyl) bis (p-phenoxy) diphenylamine, 4, 4-(hexafluoroisopropyl) bis (p-phenoxy) diphenylamine, 3, 3'-diaminodiphenyl sulfone, 1, 3-bis (3-aminopropyl) The corrosion-resistant waterproof aluminum foil glass fiber cloth prepared by the invention is relatively good in high temperature resistance, corrosion resistance and waterproofness.

The invention relates to the field of lubrication of ball screws, in particular to long-life creep-resistant lubricating grease for a high-precision ball screw, which comprises the following components in parts by weight: 65 parts of polyolefin, 5-10 parts of pentaerythritol ester, 5-10 parts of isocyanate, 2-5 parts of amine chain extender, 5 parts of PTFE (polytetrafluoroethylene), 1.0-1.5 parts of diphenylamine, 0.1-0.5 part of 2, 4-diphenyl-1, 3-pentanediol monoisobutyrate, 0.1-0.5 part of antioxidant, 0.1-0.5 part of antioxidant and 0.1-0.5 part of lubricant. The composite material is prepared from the following components in parts by weight: 0.5 to 1 part of 2, 6-butylated hydroxytoluene, 1.5 to 2 parts of molybdenum isocaprylate, 0.5 to 1 part of molybdenum bis (2-ethylhexyl) dithiocarbamate, 1 to 2 parts of zinc dialkyl dithiophosphate, 3 parts of calcium petroleum sulfonate, 1 to 1.5 parts of polyisobutene, 0.2 to 0.5 part of benzotriazole and 0.1 to 0.3 part of polymethacrylate. The isocyanate comprises HDI and IPDI, and the amine chain extender comprises TETA and TEPA. According to the invention, isocyanate and the amine chain extender react to form a polyurea macromolecular chain, and a high-energy hydrogen bond network is formed, so that the lubricating grease has relatively high creep resistance; the anti-creep performance is further enhanced through cooperation with the PTFE particles; meanwhile, through cooperation with diphenylamine, the oxidation resistance is promoted, the consumption is reduced, and the service life of the lubricating grease is longer.

The present application relates to a kind of biodegradable hydraulic oil composition and its preparation method, it includes the following weight parts of component: biodegradable base oil 96.0-98.5 parts and composite detergent 1.5-2.5 parts;The base oil is the mixture of pentaerythritol tetraester and trimethylolpropane triester, fatty acid chain is C8-C10 saturated fatty acid, saturation ≥90%, 28 days biodegradability meets the determination of OECD 301B;The composite detergent includes: octylated diphenylamine 0.45-0.90 parts, 2,6-di-tert-butyl-4-methylphenol 0.10-0.25 parts, 2-ethylhexyl acidic phosphate and its ethanolamine salt 0.60-1.20 parts, dodecenyl succinic acid di (2-ethylhexyl ester) 0.15-0.35 parts, and the mass ratio of octylated diphenylamine and 2,6-di-tert-butyl-4-methylphenol is 1.5:1~4:1.