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

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 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 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 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.