150results about How to "Strong oil resistance" patented technology

The invention provides a fluorinated silicone rubber anti-pollution flashover coating for extra-high voltage and a preparation method thereof; the fluorinated silicone rubber anti-pollution flashover coating (short for FRTV) has the following compositions by mass percent: 5-30 percent of fluorinated silicone rubber, 10-30 percent of silicon rubber, 4-8 percent of nanometer grade gas-phase white carbon black, 0.5-8 percent of compound fire retardants, 0.2-0.5 percent of firming agent, 0.01-0.05 percent of catalyst, 0.02-0.08 percent of antioxidant, 2-8 percent of flatting agents, 0.2-0.4 percent of de-foaming agent, 0.1-0.5 percent of paint and 30-60 percent of solvent. The compound fire retardant is composed of inorganic aluminium hydroxide and organic decabromodiphenyl oxide, wherein comprising 1-6 percent of the inorganic aluminium hydroxide and 0.5-3 percent of the organic decabromodiphenyl oxide. The preparing process of the coating is simple, and the coating has good weather ability, oil resistance and longer service life.

The invention discloses an environment-friendly siloxane-terminated polyurethane sealant and a preparation method thereof. First, a NCO-terminated polyurethane prepolymer is prepared, hydroxypropyl siloxane is synthesized, the NCO-terminated polyurethane prepolymer is put in a reaction kettle, a silane coupling agent and the obtained hydroxypropyl methyldiethoxysilane are added into the reaction kettle for heating to 50 to 70 DEG C for reacting for 2-3H; NCO content is tested, and when the NCO content is close to zero, a small molecule volatile capping agent is added, and stirring is performed; triethyl orthoformate is added and stirred after cooling to room temperature, and a siloxane-terminated polyurethane prepolymer is discharged; a plasticizer and an inorganic filler are added, mixed and cooled to room temperature, and an additive and a catalyst are added, and mixed under vacuum conditions; and the obtained environment-friendly siloxane-terminated polyurethane sealant has good stability, can be fast cured at room temperature to obtain an elastic sealant with good mechanical properties, has a very good adhesion effect on glass, metal and other matrixes without a primer.

The present invention discloses a sealing ring for a bottom and a top cover of a filter cleaner. The sealing ring is composed of the following raw materials: chloroprene rubber CR121, hydrogenated nitrile rubber ZP2020 (Zeonex, Japan), zinc stearate, coumarone, 2-benzimidazolethiol, chlorinated paraffin, semi-reinforcing carbon black SRF, montmorillonite powder, adipate, an accelerator PZ, an accelerator TETD, a crosslinker TAC, an antiager RD, an antioxidant 1010, and modified diatomite. The sealing ring of the invention has good overall performance, high wear resistance, strong insulation, high corrosion resistance, especially high oil resistance, and low thermal deformation coefficient, and enhances functional effect of the filter cleaner. By adding a modified diatomite, rigidity and hardness of products are enhanced, the heat-resistant, wear-resistant and anti-aging performances of products are improved, and costs are significantly reduced.

The invention discloses a method for preparing a single-layer diamond abrasive tool through chemical vapor deposition. According to a silicon carbide base body, a diamond abrasive material is mixed into a photoresist solution and is subject to ultrasonic vibration, rotating whirl coating is used for evenly dispersing diamond abrasive particles, uniform distribution of the particles on a base body substrate can be achieved, the CVD method is adopted to enable the diamond coating bonding agent to be subject to deposition between the diamond abrasive particles and the silicon carbide base body, the abrasive material and the base body are firmly connected together, and meanwhile, the abrasive particles grow to become high-grade cubic octahedral single-crystal particles. The prepared single-layer diamond abrasive tool is high in abrasive particle holding force, the exposure height is large, the chipping containing space is large, defects of electroplating and brazing single-layer diamond abrasive tools are overcome, and the method is suitable for preparing fine granularity (five micrometers to 100 micrometers) single-layer diamond abrasive tools. The prepared single-layer diamond abrasive tool has the wide application prospect in high-precise grinding fields of crisp and hard materials of semiconductors, optical crystals, artificial sapphire, glass and the like

The invention discloses an intelligent control system of impulse water turbines. The intelligent control system comprises a speed controller PLC and a stacked hydraulic servo device. The stacked hydraulic servo device comprises needle control units connected with needles correspondingly and deflector control units connected with deflectors correspondingly. The needle control units and the deflector control units are connected with the speed controller PLC. The output end of the speed controller PLC is connected with an opening side electromagnetic valve and a closing side electromagnetic valve of each needle switching valve through a power amplifier. Each needle switching valve controls an opening cavity and a closing cavity of a needle servomotor through a needle electrohydraulic converter. The invention provides the control system characterized by simple structure and high reliability and suitable for multi-needle and multi-deflector impulse units; with the unit type structural design, the digital water turbine speed adjusting system is characterized in that the hydraulic control systems of the needles and the deflectors are designed as completely identical and independently-controlled digital hydraulic units, so that intelligent hydropower station establishment is realized.

The invention provides an electro hydraulic valve. The electro hydraulic valve comprises a servo motor and a hydraulic valve which are connected with each other; and the servo motor can drive a valve plug of the hydraulic valve to move. The electro hydraulic valve is high in response speed, eliminates the problem of vibration noise caused by hydraulic impact, is high in control accuracy and linearity and overcomes the defects in the prior art that an electromagnet is used as an electro-mechanical convertor.

The invention discloses a nitrile rubber seal ring and a preparation method thereof. The nitrile rubber seal ring is prepared from the following raw materials in parts by weight: 90-100 parts of nitrile rubber, 7-10 parts of tannin, 30-42 parts of zinc-calcium composite heat stabilizer, 0.8-2.5 parts of epoxidized soybean oil, 1-3 parts of filler, 25-40 parts of a reinforcing agent, 300-500 parts of a solvent, 1-3 parts of active magnesium oxide, 3-8 parts of nano-zinc oxide, 0.5-1 part of sulfur, 0.6-0.8 part of accelerant CZ and 2-3 parts of an anti-aging agent RD. The nitrile rubber seal ring has the advantages of strong oil resistance, strong corrosion resistance, strong sealing performance and high temperature resistance. The preparation method is simple in materials, easy and convenient to operate, does not need complicated synthesizing equipment, and is relatively low in preparation cost.

The invention discloses thio salt modified epoxy resin and a preparation method and application of the thio salt modified epoxy resin. The thio salt modified epoxy resin is obtained by modifying epoxyresin by the thio salt; an emulsifier for a core-shell emulsion polymerization reaction is further prepared; and the emulsifier is further applied to an electrophoretic coating. The thio salt modified epoxy resin provided by the invention is used as an emulsifier for the core-shell emulsion polymerization reaction, and the thio salt modified epoxy resin emulsion is designed to participate in thefilm formation of the electrophoretic coating, is completely different from a general emulsifier in structure, does not act as a residual component, and does not have side effects.

The invention discloses high-attaching-performance oil-resistant wall paper, which comprises a substrate layer, a high-attaching-performance coating and an oil-resistant coating, wherein the raw materials of the oil-resistant coating comprise perfluoroalkylated acrylate, fluorinated acrylate emulsion, high imino melamine formaldehyde resin, N, N-dimethylethanolamine, nanometer titanium dioxide, nanometer carbon tubes, nanometer zinc oxide, nanometer aluminium hydroxide, kaolin, carbon nanometer tubes, kieselguhr, modified auxiliary agents, dipentaerythritol, polyethylene glycol, glycol ether, melamine polyphosphate, silane coupling agent, potassium peroxodisulfate, cellulose acetate butyrate, flatting agents, wetting agents and deionized water. The invention also provides a preparation method of the high-attaching-performance oil-resistant wall paper. The wall paper obtained through preparation has high attaching performance and excellent oil resistant performance.

A rubber gasket is prepared from the following raw materials in parts by weight: 15-35 parts of ethylenie-propylene-diene rubber, 8-16 parts of paraffin oil, 3-6 parts of polyamide wax micro powder, 2-5 parts of boron carbide, 26-56 parts of 1502 type butadiene styrene rubber, 8-24 parts of dibutyl ester, 2-6 parts of an accelerant TMTD, 3-6 parts of an antiager RD, 12-26 parts of carboxyl hydrogenated nitrile-butadiene rubber, 1-4 parts of a crosslinking agent, 9-15 parts of potassium tripolyphosphate, 6-13 parts of phenol, 8-16 parts of fluorinated silicone rubber and 2-4 parts of graphite powder. The rubber gasket has the benefits that the oil resistance and the water resistance are higher, and the age resistance is excellent.

The invention discloses a waterproof, oil-proof and stain-proof three-proofing finish process for a polyester knitted fabric. The process comprises the following steps: adding the polyester knitted fabric into three-proofing treating fluid, soaking at room temperature for 1 minute, and rolling, wherein the rolling rate is 75 percent; preliminarily drying under the temperature condition of 110-120 DEG C for 1 minute after rolling, and preliminarily drying under the temperature condition of 150-170 DEG C for 1 minute, wherein the components and concentrations of the components of the three-proofing treating fluid are as follows: the concentration of a three-proofing agent is 48-50g / L, the concentration of an intensifier is 40-42g / L, and the concentration of the penetrating agent is 1g / L. An environmental-friendly three-proofing finishing agent is adopted, the fabric has safety and environmental friendliness, the finished fabric is excellent in performance, the oil resistance, oil resistance and stain resistance are high in persistence, and the handfeel of the fabric is not influenced.

The invention provides a coal mine drilling blowout preventer comprising an orifice casing. A blowout preventing shutter is fixedly connected to the top of the orifice casing through flanges, and each of two ends of the blowout preventing shutter is connected with a wheel disc through a lead screw. The coal mine drilling blowout preventer is reasonable in structure, small in size, high in strength and high in safe reliability. By the adoption of two blowout preventing facilities, sealing property and blowout preventing effect are good, and sudden blowout of water or gas coal dusts can be prevented. The coal mine drilling blowout preventer using the flanges for connection is simple to operate and convenient to demount and maintain, and the upper and lower two blowout preventing facilities can be detached and used individually.

The invention discloses a 150 DEG C irradiation cross-linked low-smoke halogen-free flame-retardant elastomer cable material for a new energy automobile and a preparation method of the cable material.The cable material comprises, by weight, 25-50 parts of an ethylene-butyl acrylate copolymer, 10-20 parts of a hydrogenated styrene-butadiene block copolymer, 10-25 parts of an ethylene-octylene copolymer, 10-20 parts of a compatilizer, 2.5-3.5 parts of color master batch, 70-120 parts of a hydroxide flame retardant, 20-40 parts of a phosphorus-nitrogen flame retardant, 4-8 parts of a lubricant,0.5-2 parts of a coupling agent, 2-4 parts of an antioxidant, 1-3 parts of a cross-linking sensitizer, 0.2-0.6 part of an anti-copper agent and 0.2-1 part of a UV absorbent. The cable material has excellent tensile property and tear resistance, good flame retardancy, low in combustion smoke amount, high in chemical substance and oil resistance and excellent in electrical performance; meanwhile, the extrusion apparent quality of the cable material is good, and the product performance can completely meet requirements of GB / T 25085-2010 and D type requirements of ISO 6722-2012 standards. The preparation method is simple, easy to operate and easy to control, and the stability of the performance of cables can be well ensured.

The invention relates to a microbubble workover fluid and a preparation method thereof and belongs to the field of workover treatment of petroleum and gas. The microbubble workover fluid provided by the invention is composed of the following components in parts by mass: 90-200 parts of water, 0.2-1.6 parts of soapberry extract, 0.1-1 part of fatty alcohol-polyoxyethylene ether AEO, 0.5-2 parts of xanthan gum and 0.3-0.8 part of thiourea. The microbubble workover fluid provided by the invention is high in viscosity, good in foam stability, high in oil resistance, high in capacity of resisting degree of mineralization and suitable for gas condensate-containing natural gas wells with high degree of mineralization and low pressure. The microbubble workover fluid provided by the invention is non-toxic and easy to degrade, and does not pollute the environment.

The invention discloses a cylinder brainpan for common gas engine, comprising inner cover of cylinder brainpan, outer cover of cylinder brainpan, cover of breathing chip and breathing chip. Breathing cavity is formed between inside wall of inner cover and outside wall of outer cover, in which cover of breathing chip and breathing chip are set. Said breathing chip is spring steel chip. Breathing chip is pasted to the outside wall of inner cover so as to cover breathing port. The cover of breathing chip is set on the breathing chip and is fixed on the inner cover of cylinder brain span with the breathing chip. One end of the cover of breathing chip is upswept so as to form limiting angle where breathing chip swings at the angle range and the other end have an end face guiding exhaust pipe. Because breathing chip is spring steel chip and is fixed with inner cover, solving the problem of bonding and lagging of breathing chip in basic, avoiding often open and often close phenomenon entirely are realized. Stable working of the breathing chip ensures air flow smooth and achieves balancing the air press in crankcase efficiently.

The invention discloses a cable material for an anti-fracture cable and a preparation method thereof. The cable material for the anti-fracture cable comprises, by weight, 40-50 parts of polyvinyl chloride resin, 8.5-10.5 parts of urea formaldehyde resin, 6-8 parts of EBST, 10-12 parts of dioctyl phthalate, 2.5-3.5 parts of sodium tripolyphosphate, 4-6 parts of melamine cyanurate, 10-12 parts of modified hard clay, 1.5-2.2 parts of modified fly ash, 7-9 parts of cracking resistant additive, 0.4-0.6 part of polyethylene wax, 0.4-0.6 part of zinc stearate and 1.5-2.5 parts of vulcanizing agent. The cable material is good in mechanical property and high in oil resistivity and chemical resistance, the compatibility and compactness of all the materials are enhanced by adding the cracking resistant additive and other auxiliaries, and the tearing strength, resilience force and the like of finished products are further improved.

The invention relates to the technical field of household textile articles, and particularly discloses a manufacturing method of an anti-fouling sofa fabric. The method comprises the following steps that linen fiber, polyurethane fiber, polyester fiber and graphite fiber of the sofa fabric are prepared; the polyester fiber is soaked with impregnation liquid after being etched by a sodium hydroxide solution, and modified polyester fiber is obtained after the high-low temperature alternating effect is performed 3-5 times; the modified polyester fiber and graphite fiber are blended to obtain modified polyester fiber yarn, and then linen fiber, polyurethane fiber and the modified polyester fiber yarn are spun to obtain the anti-fouling sofa fabric. Nano-silica, fluorine-containing silicon macromolecular granular ultrafine powder and poly N-isopropyl amide contained in the impregnation liquid are subjected to the effect of lac to generate an anti-fouling membrane to be attached to the surface of the polyester fiber, the sofa fabric has the high dewatering and oleophobic advantages, drippy oil drops and liquid are conveniently wiped away thoroughly, and oil patches and stains can be prevented from being formed on a sofa.

The invention discloses a sea urchin-shaped nickel-cobalt hydrotalcite stainless steel net film and a preparation method and application thereof. The preparation method comprises the following steps: cleaning a stainless steel net, performing surface hydroxylation or oxidation treatment on the cleaned stainless steel net, and obtaining the stainless steel net with the hydroxylated or oxidized surface; preparing a precursor solution, wherein the precursor solution comprises a nickel source, a cobalt source, urea and ammonium fluoride; dipping the stainless steel mesh subjected to surface hydroxylation or oxidation in the precursor solution, and modifying the stainless steel mesh by adopting a hydrothermal method; and taking out the modified stainless steel mesh, washing and drying, and obtaining the sea urchin-shaped nickel-cobalt hydrotalcite stainless steel net film. The sea urchin-shaped nickel-cobalt hydrotalcite stainless steel net film has excellent anti-pollution capacity, oil-in-water emulsion and various oil-water mixtures can be separated through gravity, and water-soluble aromatic dye can be efficiently and rapidly degraded.

The invention discloses a production method for a wear-resistant anti-fingerprint film. The production method includes the following steps: selecting a large-area size base plate; performing illumination and laser detection of no-damage crack on the selected base plate; cutting the base plate; repeatedly cleaning the two sides of the base plate to enable the two sides of the cleaned base plate tohave burr, dust or sands; drying the base plate; spray coating an adhesive on the one side surface of the base plate, and adhering a transition layer; compacting and drying the transition layer and the base layer; cutting, edging and cleaning a transitional connection layer; performing magnetron sputtering and vacuum evaporation to the outer surface of the transitional connection layer; and coating the nano film under the action of the principle of the glow power generation and cathode sputtering. The production method for the wear-resistant anti-fingerprint film has the advantages that a layer of nano chemical material is coated on the outer surface of a glass product, the surface tension of a product is reduced to the minimum, the contact area of dust and the surface of the product is reduced by 90%, so that the film has higher dewatering performance, oil rub resistance and anti-fingerprint performance.

The invention discloses a transparent outdoor super-hydrophobic self-cleaning coating. The transparent outdoor super-hydrophobic self-cleaning coating contains solvent-carrying hydrophobic resin and solid-state particles with roughness processed by hexamethyl disilazane, wherein the adding amount of the solid-state particles is 1-5 times of that of the solvent-carrying hydrophobic resin; and the solvent-carrying hydrophobic resin is obtained by the steps of mixing 2.84wt%-5.68wt% of heptadecafluorodecyl trimethoxysilane, 0.6wt%-1.2wt% of phenyl trimethoxysilane, 0.45wt%-0.9wt% of tetramethyl orthosilicate and the balance of a solvent, and carrying out partial hydrolytic condensation. The transparent outdoor super-hydrophobic self-cleaning coating has strong hydrophobicity and grease resistance, and the contact area between pollutants such as dust with the surface of coating layer is greatly reduced, so that the coating has incomparable excellent self-cleaning property; and water can tumble on the surface of an article without leaving water stains like on a lotus leaf. The coating is suitable for being used on the outer surfaces of base materials such as outdoor metal components, pavement guard bars, steel transmission towers, signal facilities along railways and urban outdoor public facilities.

The invention discloses a bionic oil-water separation membrane based on the oil pollution prevention characteristic of butterfly wings as well as a preparation method and application of the bionic oil-water separation membrane and belongs to the technical field of functional materials. With the inspiration of the oil pollution prevention characteristic of butterfly wings, a morphic synergetic mechanism with a micro-nano structure is applied to a preparation process of an oil-water separation membrane material, and a nanoparticle-coated copper-based porous oil-water separation membrane with a multi-scale hierarchical tree-like structure is prepared by taking a stainless steel mesh as a supportable porous substrate and using a metal chemical deposition and saturated fatty acid crosslinking modification method. The invention provides an oily wastewater separation method which is low in cost and simple in operation. The bionic oil-water separation membrane prepared by using the preparationmethod is higher in oil-water mixture flux, stronger in oil pollution prevention property and wide in application range, can be repeatedly used and can be used for treating industrial oily wastewaterand recycling crude oil leaked on the sea.

The invention discloses an oily ground antiskid rubber sole formula, and technology. The oily ground antiskid rubber sole formula comprises, by mass, butadiene-acrylonitrile rubber 40 to 60%, butyl rubber 10 to 20%, white carbon black 20 to 30%, DOP oil 10 to 15%, zinc oxide 3 to 7%, a resin 3 to 5%, stearic acid 0.5 to 2%, an anti-aging agent 0.5 to 2%, a coupling agent 0.5 to 2%, a white smoke active agent 1 to 4%, a vulcanization accelerator 1 to 4%, and sulfur 1 to 4%. According to the technology, butadiene-acrylonitrile rubber, and butyl rubber are taken as main rubber materials, oil discharge capacity and oil resistance are excellent, aging resistance is high, ultra-light weight performance is achieved, good shock absorption performance is achieved, wear resistance is excellent, andgood antiskid effect on oily ground is achieved.

The invention discloses circulated stable foams and relates to the technical field of foams in industries such as petroleum and gas exploitation, mining, and the like. The circulated stable foams comprise a base fluid and a de-foaming agent, wherein the base fluid comprises following components in parts by weight: 0.5-1.5 parts of foaming agent, 0.1-0.3 parts of stabilizing agent, 6-8 parts of inhibitor, 1-3 parts of wetting reversal agent and 100 parts of water; the de-foaming agent is silicone oil emulsion type de-foaming agent; and the percent by volume of the base fluid and the de-foamingagent is 0.066-0.068%. By using the circulated stable foams provided by the invention, the economical efficiency and applicability of the foam drilling can be increased and stabilized and the environmental pollution caused by the foams can be reduced.

The invention discloses an electrical-vehicle charging pile cable capable of transmitting temperature measurement and control signals. The cable includes a cable core which includes a live wire core, a null line core, a ground wire core and a temperature control wire core, wherein the live wire core includes a live wire conductor and a first insulating layer which wraps externally the live wire conductor; the null line core includes a null line conductor and a second insulating layer which wraps externally the null line conductor; the ground wire core includes a ground wire conductor and a third insulating layer which wraps externally the ground wire conductor; the temperature control wire core includes two signals transmission lines and each signal transmission line includes a temperature control conductor and a forth insulating layer which wraps externally the temperature control conductor; the two signal transmission lines are externally wrapped sequentially with a metal wrapping tape shielding layer and a metal braiding shielding layer after being mutually stranded; the cable core is externally wrapped with a wrapping tape layer in a lapping manner; and the wrapping tape layer is externally wrapped with an outer protection layer in a pressing manner. The temperatures of the cable and a plug can be monitored in a real-time manner in a charging process and the power supply can be cut off timely when the temperature of the plug is too high so that it is prevented that overheat causes a fire disaster.

The invention is suitable for the technical field of rubber and provides rubber for buffering supporting piece in an automobile. The rubber comprises or includes the following components in parts by weight: 70-90 parts of nitrile rubber buna, 10-30 parts of high styrene, 1-3 parts of a dihydroquinoline antiaging agent, 1-3 parts of a p-phenylenediamine antiaging agent, 1-4 parts of paraffin, 4-8 parts of an activator, 1-3 parts of stearic acid, 60-100 parts of a reinforcing agent, 0.5-2.5 parts of a vulcanizing agent and 2-5 parts of an accelerant. By using the nitrile rubber buna, the oil resistance of the rubber obtained is greatly improved, so that the product is maintained in a good performance and shape in a working environment filled with oil. By using the high styrene, the hardness of the rubber can be remarkably improved, and the rubber has high hardness on the premise that the filling amount of the rubber product is not high.

The invention relates to a preparation method of wrinkle gloves. The preparation method of the wrinkle gloves comprises the steps of S1, preparing a rubber cement: adding a thickening agent to rubberlatex, and preparing the rubber latex into the rubber cement with viscosity of 1200-7500 Pa.s; S2, impregnating in rubber: impregnating glove blanks, which are pre-treated or not pre-treated, in the rubber cement; and after the glove blanks are taken out, using a spraying device to spray particulate matters to the rubber cement on the surfaces of the glove blanks, wherein the particulate matters are water-absorbent resin powder particles; S3, prevulcanizing and water washing: prevulcanizing and drying the glove blanks, and then carrying out water washing on the glove blanks to remove non-bonded particulate matters; and S4, vulcanizing and drying: vulcanizing and drying the glove blanks at a low temperature first, and then vulcanizing and drying the glove blanks at a high temperature to prepare the wrinkle gloves. The preparation method of the wrinkle gloves is used. The preparation method of the wrinkle gloves, provided by the invention, has the advantages that an existing oiling agentswelling mode is changed into a mode of spraying resin particles to realize wrinkling, the application range of a rubber glove wrinkling process is expanded, swelling solvents such as xylene and acetic acid are not needed, irritating odor and organic waste water are not generated, and therefore, the preparation method of the wrinkle gloves is very environmentally friendly.