34results about How to "Reduce flow viscosity" patented technology

The invention relates to a high-temperature-resistant soft bulk-shielding instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are twisted to form twisted wire pairs, and the twisted wire pairs are stranded to form a cable core; the periphery of the cable core is successively wrapped with a copper foil polyester composite tape shielding layer and a polyester tape; and the periphery of the polyester tape is successively provided with an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 parts of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 parts of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention discloses a liquid crystal composition. The liquid crystal composition contains at least one compound of a formula I, and at least one polymerizable compound of a formula II. The liquidcrystal composition provided by the invention has suitable optical anisotropy, suitable dielectric anisotropy, low flow viscosity, appropriate rotary viscosity, and also has good pretilt angle stability while maintaining a relatively high clearing point, wherein the pretilt angle does not basically shift under long-time voltage driving. The invention also discloses a liquid crystal display devicecontaining the liquid crystal composition. When the liquid crystal composition is applied to a PSA type liquid crystal display, the display effect is excellent. The invention also provides the liquidcrystal display device containing the liquid crystal composition.

The invention discloses a calixarene solution for a printed circuit board. The calixarene solution for the printed circuit board is characterized by comprising calixarene, terephthalaldehyde, plasticizer, coupling reagent and aromatic solvent. The components in parts by weight are as follows: 100 parts of calixarene, 50-70 parts of terephthalaldehyde, 10-20 parts of plasticizer, 5-10 parts of coupling reagent and 200-400 parts of aromatic solvent. The calixarene solution for the printed circuit board disclosed by the invention has high liquidity and is practically suitable for printing production of circuit board.

The invention discloses a preparation method of high-solid low-viscosity polyester modified water-soluble acrylic resin. The preparation method comprises the following steps of: adding a cosolvent ethylene glycol butyl ether and a micromolecular polyester intermediate into a reactor; introducing nitrogen, and keeping the final pressure in the reactor at 2-4 Kg; raising the temperature; uniformly mixing acrylic acid, hydroxyethyl acrylate, adamantyl methacrylate, styrene and butyl acrylate, and recording a mixture as a material A; uniformly mixing the ethylene glycol butyl ether with tert-butylperoxy-3, 5, 5-trimethylhexanoate, and recording a mixture as a material B; dropwise adding the material A and the material B into the reactor; and after the dropwise adding, keeping the temperatureuntil an acid value is qualified, performing cooling and discharging. The micromolecular polyester is adopted to improve the solid content of the system and reduce the viscosity, and meanwhile, the adamantyl methacrylate is adopted to improve the hardness of the material, so that the obtained water-soluble acrylic acid has the characteristics of high solid content and low viscosity, and also has relatively high hardness and flexibility.

The invention relates to a storage battery colloidal electrolyte containing natural acicular nanocrystalline or microfiber, mainly comprising the following components in weight ratio: 3.0-12 percent of gelatinizing agent (silicon-contained gel), 0.01-0.1 percent of flow improver, 5.0-13.8 percent of complex additive and the balance of electrolyte (a sulfuric acid dilute solution), wherein the flow improver is the natural acicular nanocrystalline or microfiber. The colloidal electrolyte has good thixotropic flowability and gel stability and low colloidal kinetic viscosity; the glue pouring efficiency of the colloidal electrolyte and the immersional wetting effect of the colloidal electrolyte on a partition board and a polar plate are improved, and the resistance of the colloidal electrolyte is reduced; and therefore, the colloidal electrolyte can be used for assembling storage batteries with different applications and different modes.

The invention provides a skid-mounted high-pressure dosing device and method. The device comprises a base, a platform, a medicament tank, a dosing pump, a control cabinet, a liquid level meter and a stirring device, wherein the stirring device consists of a paddle blade and a baffle plate, and is used for realizing uniform stirring of medicaments without damaging the monomer forms of the medicaments; a heater and a temperature control device are arranged inside the medicament tank; and by controlling the temperature inside the medicament tank, the flowing viscosities of the medicaments are lowered while the medicament properties are not lowered. By adopting the device and the method, the functions of stirring, heating, metering, high-pressure injection and the like are integrated, so that the technical problem of difficulty in injecting high-viscosity liquid medicaments is solved, and a dosing process is simplified, automatized and integrated.

The invention relates to a high-temperature-resistant soft independent shield instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are twisted to form twisted wire pairs, and each twisted wire pair is successively wrapped with a copper foil polyester composite tape shielding layer and a polyester tape at the periphery, and then the twisted wire pairs are stranded to form a cable core; and the cable core is successively provided with an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath at periphery. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076; 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention provides a pressure-resistant impact-resistant PE pipe material and a preparation method thereof, and belongs to the technical field of PE pipe materials. The pressure-resistant impact-resistant PE pipe is composed of the following components in parts by weight: 60-80 parts of polyethylene, 5-30 parts of coupled inorganic silica, 2-10 parts of heat stabilizer, 0.5-2 parts of dispersing agent, 0.5-3 parts of toughening agent, and 0.5-5 parts of paraffin. The invention also provides a preparation method of the pressure-resistant impact-resistant PE pipe material. The PE pipe material of the invention has good pressure and impact resistance.

The invention relates to a high-temperature-resistant soft control cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a 0.35-2.5mm<2> tin-plated annealed stranded copper conductor to form an insulation wire core; a plurality of insulation wire cores are twisted to the right at 20-24 times of standing lay ratio to form a cable core; an inner sheath is extruded at the periphery of the cable core; the inner sheath inner sheath inner sheath is coated with a copper alloy wire weaving armor layer at the periphery; the periphery of the copper alloy wire weaving armor layer is wrapped with a water-proof wrapping tape; and an outer sheath is extruded at the periphery of the water-proof wrapping tape. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076; 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention discloses a 3D printing device and method for high-molecular-weight silicone rubber. A hundred-micron-level micropore nozzle with the high shearing rate and high extruding strength and for screw extruding force is adopted in a 3D printing head system, the flowing viscosity of the high-molecular-weight silicone rubber is greatly reduced, and 3D printing forming of a high-molecular-weight, high-compression-modulus and long-service life silicone rubber material is achieved. The extrusion and expansion stability of the material on the hundred-micron-level micropore nozzle is improved, the dimensional precision of a 3D printing fluid line is accurately controlled, and high quality, high precision and high efficiency in the 3D printing process are achieved. A photo-thermal two-order curing material 3D printing manner is adopted, the curing rate and dimensional precision of the 3D printing material are greatly increased, the high quality and stability of the 3D printing high-molecular-weight silicone rubber material are improved, and the macro-performance and structure adjustability of the 3D printing material are achieved.

The invention relates to a medium-voltage cable resistant to jet flame and hydrocarbon flame for offshore oil platforms and a manufacturing method thereof. The outer periphery of a stranded tinned annealed copper conductor is wrapped with a semiconductive shielding layer from the inside to the outside by means of three-layer co-extrusion. , insulating layer and semi-conducting insulating shielding layer, after braiding a tinned copper wire shielding layer on the outer periphery of the semi-conducting insulating shielding layer, a shielded wire core is formed, and a plurality of shielded wire cores are twisted with each other to form a cable core, and the outer circumference of the cable core is extruded. The inner silicone oil layer, the inner lining layer is extruded on the outer periphery of the inner silicone oil layer, the refractory wrapping tape is wrapped around the outer periphery of the inner lining layer, the armoring layer is wrapped around the outer periphery of the refractory wrapping tape, and the outer periphery of the armoring layer is extruded. For the outer silicone oil layer, a jet flame and hydrocarbon flame resistant inner sheath is extruded on the outer periphery of the outer silicone oil layer, and a mud-resistant cross-linked polyolefin outer sheath is extruded on the outer periphery of the jet flame and hydrocarbon flame resistant inner sheath. The cable adopts double-layer composite sheath, which can withstand high temperature flame of 1300℃ for 120 minutes under rated voltage without ground fault or short circuit.

The invention discloses a dicarboxy polycaprolactone compound, a preparation method thereof and an application of an inorganic filler dispersant. In the method, high-purity nitrogen or high-purity argon-protected ε-caprolactone and monohydric alcohol are placed in a reactor, a catalyst stannous octoate is added, and the reaction is carried out at 100-130° C. for 4-48 hours to obtain monohydroxyl-terminated Polycaprolactone; at 4-dimethylaminopyridine and 10-40°C, hydroxyl-containing polycaprolactone and maleic anhydride are esterified in solution; under the action of an initiator, the obtained product is regenerated React with 3-mercaptopropionic acid to obtain polycaprolactone with dicarboxyl groups at the end of the molecular chain. As a dispersant, the dicarboxypolycaprolactone compound prepared by the present invention can be quickly and firmly adsorbed on the surface of inorganic fillers, which not only meets the dispersion requirements of different inorganic filler particles, but also can significantly reduce the kinematic viscosity of the inorganic particle filling system, significantly improving The processing or construction performance of the system is improved.

The invention discloses an anticorrosive wire drawing liquid used for metal, and is characterized by comprising the following raw materials by weight: 3-5 parts of sodium alcohol ether sulphate, 1-2 parts of citric acid, 2.5-3 parts of zinc butyl octyl dithiophosphate, 1.5-2.5 parts of diisobutyl phthalate, 3-4 parts of pentaerythritol, 2-3 parts of tributyl phosphate, 8-12 parts of rapeseed oil, 8-10 parts of nanometer titanium dioxide, 1-2 parts of dispersant NNO, 5-7 parts of auxiliary agent and 900-950 parts of deionized water. A formula of the wire drawing liquid is reasonable, the added zinc butyl octyl dithiophosphate has good antioxidant and anti-corrosive property, odor of the wire drawing liquid can be avoided, and service life is prolonged; and the added auxiliary agent has good antiwear, dispersion, lubrication and film forming ability. The aqueous formula is employed, and the wire drawing liquid has the advantages of low flow viscosity and good fluidity, has good heat radiation effect and excellent lubrication performance, the wire type of brass wires and aluminum wires drawn by the product of the invention is uniform, surface is bright, and corrosion is difficult.

The invention relates to a preparation method for a polymer base nanometer composite material with highly oriented nanoparticles in the polymer matrix, and belongs to the technical field of polymer materials. The preparation method comprises that during a foaming process of a polymer nanometer composite material formed by carrying out melt co-mixing on a polymer and nanoparticles, external force is applied to make the foam hole in the material grow along the uniaxial direction in an oriented growth manner, and the polymer flows under the double induction of the external force and the foam hole growth to achieve the high orientation of the nanoparticles so as to obtain the polymer base nanometer composite material with the highly oriented nanoparticles in the polymer matrix. The method has advantages of simple operation, mild condition, high orientation degree of the nanoparticles in the prepared polymer nanometer composite material, and the like.

The invention relates to a high-temperature-resistant soft power cable for maritime oil and gas engineering and a manufacturing method thereof. The power cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; a plurality of insulation wire cores are stranded to form a cable core; an inner sheath is extruded at the periphery of the cable core; the periphery of the inner sheath inner sheath inner sheath is coated with a copper alloy wire weaving armor layer; the periphery of the copper alloy wire weaving armor layer is wrapped with a water-proof wrapping tape; and an outer sheath is extruded at the periphery of the water-proof wrapping tape. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of flame retardant aluminum hydroxide, 0.6-1 part of flame retardant red phosphorus, and 0.05-0.1 parts of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention relates to a layered silicate-containing colloidal electrolyte for storage batteries, which mainly comprises a silicon-containing gel, a thixotropic agent, a complex additive and electrolyte, wherein the thixotropic agent is layered silicate with the width / thickness ratio of 100-2,000. The colloidal electrolyte comprises the following components in percentage by weight: 2.0 to 10.0 percent of gelatinizing agent, 0.05 to 0.5 percent of thixotropic agent, 5.0 to 13.0 percent of complex additive and the balance of dilute solution of sulfuric acid. The colloidal electrolyte has goodthixotropic liquidity and gel stability and low colloid kinetic viscosity; and the filling efficiency of the colloidal electrolyte and the infiltration of the colloidal electrolyte on the baffle plate and polar plates are greatly improved. The electrolyte can be used for assembling storage batteries with different purposes, such as starting batteries, stationary batteries, traction batteries and the like.