5results about How to "Improve flame resistance" patented technology

The invention relates to a biodegradable hydraulic oil composition and a preparation method of hydraulic oil, and relates to the technical field of hydraulic oil compositions.The hydraulic oil composition comprises, by weight, 20-37% of ester oil, 5-10% of refined vegetable oil and 5-10% of a demulsifier, and the total weight of the ester oil, the refined vegetable oil and the demulsifier is 100%. The content of the refined vegetable oil is 62-79.9 wt%, the content of the demulsifier is 0.1-1 wt%, and the preparation method of the refined vegetable oil comprises the following steps: pre-loading a nanocapsule with an antioxidant as an inner core in activated clay, loading the activated clay pre-loaded with the nanocapsule into deacidified oil, and filtering to obtain the refined vegetable oil. The hydraulic oil composition disclosed by the invention has excellent biodegradability and also has the technical effects of relatively good oxidation stability and viscosity-temperature property.

This invention belongs to the field of sodium-ion batteries, and relates to a fluorophenylphosphonate, its preparation method, and its application in sodium-ion batteries. The fluorophenylphosphonate includes di(trifluoroisopropyl)phenylphosphonate or di(hexafluoroisopropyl)phenylphosphonate; the preparation steps are as follows: using fluoroalcohol and phenylphosphonyl dichloride as raw materials, triethylamine as an acid-binding agent, and diethyl ether as a reaction solvent, the fluorophenylphosphonate is prepared by a condensation substitution reaction. Sodium-ion batteries prepared using fluorophenylphosphonate exhibit high ionic conductivity and an electrochemical stability window. This phosphonate additive preferentially decomposes at the electrode interface, inducing the formation of a thin, dense, uniform electrode-electrolyte interface phase rich in NaF inorganic components, and giving the electrolyte excellent flame-retardant properties. Sodium-ion batteries assembled with positive electrode materials exhibit good rate performance and cycle stability, with a cycle life exceeding 5000 cycles at room temperature. Simultaneously, this electrolyte also exhibits excellent cycle performance at a high temperature of 60°C.

The invention relates to the field of green special refractory ceramics, and particularly discloses an ultralow-carbon aluminum zirconium barium magnesium converter sliding plate and a preparation process thereof. The ultralow-carbon aluminum-zirconium-barium-magnesium converter sliding plate comprises the following raw material components in parts by weight: 60-80 parts of a main material; 1-3 parts of nano magnesium oxide; 4-8 parts of magnesium oxide; 20 to 30 parts of zirconium oxide; 1-4 parts of a sintering agent; 3-6 parts of a binding agent; the main materials comprise barium hexaaluminate and barium zirconate; the preparation method comprises the following steps: S1, mixing to obtain a mixture; and S2, the mixture is subjected to firing, oil immersion, baking and cold machining in the oxygen atmosphere, and the ultra-low-carbon aluminum zirconium barium magnesium converter sliding plate is obtained. The ultralow-carbon aluminum-zirconium-barium-magnesium converter sliding plate almost does not contain any carbon element, the oxidation resistance is excellent, the cleanliness of molten steel is effectively improved, and the thermal shock resistance and the crack propagation resistance of the ultralow-carbon aluminum-zirconium-barium-magnesium converter sliding plate are obviously improved through the synergistic effect of all the components.

The utility model belongs to the technical field of cables and discloses a high-toughness bending-resistant cable which comprises an outer sheath layer, a compression-resistant layer is arranged in the outer sheath layer, a bending-resistant layer is arranged in the compression-resistant layer, an insulating layer is arranged in the bending-resistant layer, an inner sheath layer is arranged in the insulating layer, an elastic tube is arranged in the inner sheath layer, and the elastic tube is arranged in the outer sheath layer. A flame-retardant filling layer is arranged between the outer side of the elastic tube and the inner sheath layer, a core sleeve is wrapped in the flame-retardant filling layer, and a wire core is arranged in the core sleeve. Through the arrangement of the outer sheath layer, the compression-resistant layer, the bending-resistant layer, the insulating layer, the inner sheath layer, the flame-retardant filling layer, the elastic tube, the core sleeve and the wire core, the toughness and elasticity inside and outside the cable are improved, meanwhile, the flame-retardant and heat-resistant capabilities of the cable are improved, the cable is prevented from being damaged or broken due to external force, and the service life of the cable is prolonged.

This utility model discloses an adjustable bracket for electrical wire harness processing, belonging to the field of adjustable brackets for electrical wire harness processing. It includes an upper arc-shaped bracket and a lower arc-shaped bracket, with the upper arc-shaped bracket located above the lower arc-shaped bracket. A mounting base is installed at the bottom of the lower arc-shaped bracket. The upper arc-shaped bracket includes a galvanized flat iron material layer, with a pressure-resistant layer on the outer surface of the galvanized flat iron material layer. An outer surface layer is provided on the outer surface of the pressure-resistant layer, comprising an alloy steel layer, and a carbon steel layer is provided on the outer surface of the alloy steel layer. This adjustable bracket for electrical wire harness processing, with the assistance of the outer surface layer, possesses excellent acid and alkali resistance, wear resistance, and flame retardancy. The upper arc-shaped bracket maintains good mechanical properties even after long-term exposure to harsh conditions, and also exhibits good corrosion resistance, increasing its corrosion and chemical resistance and extending its service life.