9results about How to "Improve flame resistance" patented technology

The invention relates to a preparation method of a phosphorus / silicon (P / Si)-containing phenolic resin curing agent for a copper-clad plate, belonging to a preparation method of a high polymer material. The flame-retardant phenolic resin material is prepared by directly introducing a flame retardant into a phenolic resin molecular chain, and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and a silane coupling agent are mainly used as flame-retardant element donors; the two components are taken as raw materials in a phenolic resin synthesis process through chemical bonding to directly participate in the resin synthesis process, P and Si elements are effectively introduced into a resin molecular chain, and the heat resistance and flame retardance of the phenolic resin and a curing system thereof can be remarkably improved through the synergistic flame retardant effect of the P and Si elements. The preparation method overcomes the defects of poor flame-retardant effect and short service time of the material caused by molecular migration in the composite material due to the addition of the traditional small-molecular flame retardant / flame-retardant filler. The development of the novel curing agent not only promotes the technical progress of the phenolic resin curing agent, but also widens the practical application prospect of the phenolic resin curing agent.

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.

The utility model discloses a flame-proof battery assembly for a new energy electric vehicle, which comprises a mounting frame and a bottom plate, cross beams are mounted on the outer walls of the two sides of the mounting frame, fixing holes are formed in the outer walls of the cross beams, a plurality of groups of anti-collision beams I and anti-collision beams II are mounted on the inner wall of the mounting frame, and anti-collision beams III are mounted on the inner wall of the mounting frame. The multiple sets of first anti-collision beams and the multiple sets of second anti-collision beams are obliquely installed in the installation frame, and the first anti-collision beams and the second anti-collision beams are arranged in an X shape in a pairwise crossed mode and form a pair in a pairwise mode. According to the utility model, by arranging devices such as the anti-collision beam I and the anti-collision beam II, when a certain group of anti-collision beam II or anti-collision beam III is damaged, the anti-collision beam II or the anti-collision beam III can be disconnected from the mounting frame by disassembling the screw II at the end part of the anti-collision beam II or the anti-collision beam III, and then the anti-collision beam I and the anti-collision beam II are taken out from the clamping groove III and the clamping groove I for replacement; therefore, the whole shell does not need to be replaced, the replacement and maintenance cost is reduced, and the maintenance efficiency and economy are improved.

The invention relates to a water-based single-component acrylate coating and a preparation method thereof, and belongs to the technical field of coatings. Diethyl thiocarbamate groups and tetrahydroquinoxaline sulfonyl groups with different contents are grafted in phytic acid, and thiocarbonyl groups and tertiary amine groups in the diethyl thiocarbamate groups and hydrophilic tetrahydroquinoxaline groups and sulfonyl groups in the tetrahydroquinoxaline sulfonyl groups are utilized, so that the synthesis efficiency of the phytic acid is improved. The stability of the acrylate emulsion and the adhesive force, alkali resistance, corrosion resistance, pollution resistance and flame resistance of the water-based single-component acrylate coating are improved.

The invention discloses a processing technology for preparing fire-resistant hydraulic fluid by using oil for electric power, and relates to the technical field of fire-resistant hydraulic fluid. According to the processing technology for preparing the fire-resistant hydraulic fluid by using the oil for electric power, nano copper powder is added, so that the nano copper powder is gradually deposited on the surface of a friction pair under the action of friction acting force in the friction process, deep furrows formed by friction on two friction surfaces are filled, and the self-repairing effect on the friction surfaces is achieved; due to the low melting point and good ductility of the nano copper powder, heat generated in the friction process melts the nano copper powder, a layer of smooth and compact protective film is spread on the friction surfaces, the friction factor is effectively reduced, the stability of the low friction factor is achieved, meanwhile, the protective film enables the two friction surfaces to form two separated surfaces, and therefore the friction coefficient is effectively reduced. The wear resistance is obviously improved.

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.