11results about How to "Achieving Flame Retardancy" patented technology

The invention relates to the technical field of artificial board processing, in particular to a preparation method of green low-toxicity flame-retardant plywood. The method comprises the following steps: S1, green synthesis and step-by-step dipping treatment of a complexing phosphorus-nitrogen flame retardant; s2, preparation of a flame-retardant adhesive and construction of an interface intumescent flame-retardant system; s3, stepped layered assembly and hot press molding; s4, conducting ion regulation and anti-rust treatment; wherein the complexing phosphorus-nitrogen flame retardant in the step S1 takes phosphorus and nitrogen as core flame-retardant elements and is synthesized through a complexing rapid reaction and cross-linking reaction technology, the reaction temperature is 80-100 DEG C, and the reaction time is 30-60 minutes; the mass ratio of the phosphorus-containing metal complex precursor to the nitrogen source compound to the chitosan to the catalytic substance is (2-3): (5-6): (1-3): (0.5-1). According to the flame-retardant plywood prepared through the method, the combustion rate growth index is smaller than 100 W / s, the 600-s total heat release amount is smaller than 7.0 MJ, the smoke generation rate index of the smoke generation characteristic is smaller than or equal to 30 m / s, the 600-s total smoke generation amount is smaller than or equal to 50 m, and multiple technical defects of traditional flame-retardant plywood are overcome.

The utility model discloses a polypropylene insulating fireproof flame-retardant environment-friendly medium-voltage power cable, which comprises an insulating wire core and an insulating layer, and is characterized in that the insulating layer is wound on the outer side of the insulating wire core; the insulating layer comprises a semi-conductive nylon tape wrapping layer, a metal shielding layer, a glass fiber tape wrapping layer, a heat insulation layer, a fireproof tape wrapping layer, an oxygen isolation layer, a first flame-retardant tape wrapping layer, a fireproof layer, an armor layer, a second flame-retardant tape wrapping layer and an outer sheath layer from inside to outside in sequence. According to the utility model, through the double-structure design of the double fireproof layers, the heat insulation layer and the oxygen isolation layer, the fireproof performance and the flame-retardant B1-level combustion performance of the aluminum alloy core medium-voltage cable are realized, the bunched A-type combustion performance is satisfied, and the high-performance development trend of the cable is met; and the conductor material and the metal shielding material are made of aluminum alloy materials, so that the influence of overhigh price of the copper rod on the cost of the cable is reduced, and the comprehensive competitiveness of the cable market is enhanced.

The invention relates to the technical field of diatom ooze decorative plates, in particular to a fireproof and antibacterial diatom ooze decorative plate and a preparation method thereof.The fireproof and antibacterial diatom ooze decorative plate comprises a base material layer, a decorative layer and a fireproof and antibacterial coating which are sequentially arranged from bottom to top; the fireproof and antibacterial coating comprises the following raw materials in parts by weight: 3-6 parts of nano silicon dioxide, 6-10 parts of methacryloyloxyethyl hexadecyl dimethyl ammonium chloride, 20-30 parts of 2-hydroxyethyl methacrylate phosphate, 5-10 parts of [(6-oxo-6H-dibenzo [C, E] [1, 2, 3] triazolo [3, 4-b] pyrimidine-2-yl)-1, 2, 3-triazolo [ The invention relates to a UV (ultraviolet) photoinitiator, which is prepared from the following components in parts by weight: 10 to 20 parts of 2, 2] oxophosphahexane-6-yl) methyl] succinic acid bis (2-hydroxyethyl) ester, 80 to 100 parts of polyurethane acrylate resin, 3 to 5 parts of photoinitiator and 20 to 40 parts of organic solvent. According to the fireproof and antibacterial diatom ooze decorative plate and the preparation method thereof, on the premise of ensuring the mechanical strength, the fireproof and antibacterial diatom ooze decorative plate not only has an excellent decorative effect, but also has fireproof performance and antibacterial performance at the same time.

The invention provides a lithium ion battery electrolyte flame-retardant additive, application and a lithium ion battery, Zn-MOF-74 is used as a carrier, triphenyl phosphate (TPP) is used as a flame-retardant active component, and the TPP is packaged in a porous framework of Zn-MOF-74 to form core-shell structure nanoparticles; the loading capacity of TPP in the additive is 10-40 wt%, and the particle size of particles is 300-700 nm; the flame-retardant additive accounting for 0.5-40% of the mass of the electrolyte is added into the basic electrolyte, ultrasonic dispersion is carried out for 25-45 min, and a flame-retardant electrolyte is formed; the basic electrolyte is a mixed system of 0.5-3 mol / L of lithium salt and a carbonic ester organic solvent; the carbonic ester organic solvent is a mixed solution of EC, DEC and EMC in a volume ratio of 1: 1: 1; the lithium salt is LiPF6; the flame-retardant electrolyte also contains 0.5-2wt% of a negative electrode film-forming additive, and the negative electrode film-forming additive is VC or FEC; the electrolyte is the flame-retardant electrolyte; the pole core is formed by winding or laminating a positive plate, a negative plate and a diaphragm; according to the lithium ion battery electrolyte flame-retardant additive, the application and the lithium ion battery, the effect of improving the safety performance of the battery can be achieved.

This invention discloses a functionalized MXene-based waterborne fire-retardant coating, its preparation method, and its application, belonging to the field of fire-retardant coating technology. This invention combines the advantages of functionalized MXene materials, such as high dispersibility, high temperature resistance, and excellent flame-retardant properties, using waterborne polyurethane as the resin matrix, ammonium citrate as the acid source, and MXene materials as nanostructured flame retardants to develop an environmentally friendly, high-performance reinforced waterborne fire-retardant coating. The MXene materials can be obtained through chemical modification with different functional groups (such as silane coupling agents, calixarenes, and MOFs) to introduce polar groups onto the surface. The fire-retardant coating prepared using functionalized MXene materials achieves UL-94 V-0 flame retardancy through a dual mechanism of physical barrier and "catalytic char formation," while also possessing high mechanical strength and thermal stability, making it suitable for protecting substrates such as metals and wood.

This invention relates to the field of flame-retardant composite materials, specifically to flame-retardant composite materials based on the synergistic reinforcement of talc and graphene sheets and their applications. It addresses the problem that existing polymer materials struggle to simultaneously achieve reinforcement, flame retardancy, and lightweighting, and require large quantities of high-performance additives. The process involves first mixing talc sheets, graphene, a composite flame retardant, and a dispersant in a high-speed mixer, then cooling to room temperature to obtain a premix. A polymer matrix is ​​then added to a twin-screw extruder. The premix and other auxiliary additives are added through a side feed port, melt-blended, water-cooled, air-dried, and pelletized to obtain composite material particles. These particles are then vacuum-dried and injection-molded to obtain the flame-retardant composite material. The flame-retardant composite material possesses excellent flame-retardant and mechanical properties, exhibiting outstanding overall performance and being more suitable for industrial production.

The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.

The utility model discloses a silicone rubber high-temperature-resistant control cable which comprises a conductor protection layer, a protection sleeve is arranged on the outer side of the conductor protection layer, an aluminum foil shielding layer is arranged on the outer surface of the protection sleeve, an inner silicone rubber sleeve is arranged on the outer side of the aluminum foil shielding layer, and an outer silicone rubber sleeve is arranged on the outer side of the inner silicone rubber sleeve. Compared with the prior art, the cable has the advantages that when the cable is on fire, a tough carbon layer can be formed on the outer surface by utilizing the expanded graphite layer, so that the flame-retardant effect is realized, the combustion time is shortened, toxic gas generated by combustion is reduced, the elastic rubber net can be recovered after the cable is extruded, the deformation of the cable is reduced, and the working strength of the cable is improved.

The invention relates to the field of coatings, in particular to a fireproof and waterproof composite coating and a preparation method thereof, which are used for solving the problems that an existing epoxy resin coating is poor in flame retardance and water resistance, and application of the epoxy resin coating in high-humidity, high-temperature or fire risk areas is limited. The composite coating takes epoxy resin as a main raw material, has excellent adhesiveness, can form firm chemical bonds with a base material, ensures that the coating is uniformly coated on various surfaces and is not easy to fall off, and can further improve the overall adhesion performance of the coating and ensure the long-term durability of the coating by adding a multi-epoxy organosilicon compound into the coating. The water resistance and flame retardance of the coating can be remarkably improved by adding the fluorine-containing organic phosphorus compound, and the finally prepared coating has excellent fireproof and water-resistant performance, so that the coating shows more excellent performance in various environments, the service life of the coating is remarkably prolonged, and the application range of the coating is remarkably widened.

The application discloses a bidirectional stretching flame-retardant reinforced nylon film for lithium ion battery packaging and a preparation method thereof. First, two multifunctional inorganic modified compounds, mesoporous silica coated carbon nanotube hybrid and phosphorus-nitrogen synergistic flame-retardant reinforced titanium dioxide nanorod, are designed and synthesized. Then, the two inorganic modified compounds are added as core additives, and mixed with a nylon matrix, an antioxidant, a lubricant, a dispersant and an electrolyte-resistant modifier to obtain a composite master batch through melt extrusion granulation. Finally, the composite master batch is subjected to melt extrusion, casting, bidirectional stretching, shaping and winding to obtain the bidirectional stretching flame-retardant reinforced nylon film for lithium ion battery packaging. The nylon film prepared by the application has excellent flame-retardant performance, mechanical strength, electrolyte corrosion resistance, aging resistance and processing performance, and the preparation process is simple, green and environment-friendly, and can meet the application requirements of high-end lithium ion battery packaging fields such as lithium ion battery soft packaging and hard shell packaging.

This utility model relates to a decorative leather for car armrests, belonging to the field of car armrest decoration technology. It includes composite leather with a fixing structure on the outside for positioning and easy disassembly / removal of car armrests made of different materials. The fixing structure includes a fixing plate adhered to the bottom of the composite leather. Hinges are fixedly connected to the front and rear ends of the fixing plate. A movable strip is hinged to the inner side of the hinge frame, and a magnetic block is embedded on the outer surface of the movable strip. Double-sided adhesive is provided on the bottom of the composite leather and the top of the fixing plate for bonding and positioning. The composite leather includes a surface layer, a flame-retardant layer, a reinforcing layer, and a cushioning bottom layer. A rigid cup sleeve is sewn onto the top of the composite leather. This decorative leather for car armrests, through its fixing structure, achieves the effect of positioning and easy disassembly / removal of car armrests made of different materials. Compared with existing leathers, it is easier to clean and replace, and its applicability is better.