9 results about "Ammonium polyphosphate" patented technology

The application discloses a compound fertilizer for promoting cotton high yield and a preparation method thereof, relates to the technical field of cotton fertilizer, and comprises first mother liquor A, second mother liquor B and third mother liquor C which are prepared, stored and packaged separately; the first mother liquor A contains urea phosphate, monoammonium phosphate, anhydrous citric acid, malic acid and manganese sulfate monohydrate; the second mother liquor B contains commercial 11-37-0 liquid ammonium polyphosphate, ammonium salt type polyaspartic acid solution, purified fulvic acid clear liquid and tri-potassium citrate; and the third mother liquor C is a mixed system of polyol complex state boron clear pre-liquid and medium complex state zinc pre-liquid. The application can improve the effective state stability of phosphorus, zinc and boron, reduce the risks of precipitation fouling and dripping head blockage, alleviate the risks of local salt peak and root injury in the seedling stage, promote the uniform emergence and young root growth of cotton, and improve the yield.

The invention relates to the field of flame-retardant fabric preparation, and particularly discloses an outdoor environment-friendly fluoride-free flame-retardant fabric and a processing technology thereof.The flame-retardant fabric comprises a high-weather-resistance fabric layer, a first flame-retardant layer and a second flame-retardant layer; the high-weatherability fabric layer is an acrylic fabric or a polyester fabric subjected to fluoride-free and water-repellent finishing, and a fluoride-free and water-repellent finishing agent comprises one or more of polyurethane, polyacrylic acid and organic silicon; the first flame-retardant layer comprises expandable graphite, ammonium polyphosphate and bonding resin; the second flame-retardant layer comprises one or more of a flame-retardant spunlace non-woven fabric and a flame-retardant TPU (thermoplastic polyurethane) film, at least one surface of the second flame-retardant layer is coated with hot-melt resin slurry dots, and one side coated with the hot-melt resin slurry dots is attached to the first flame-retardant layer.

The invention discloses a bamboo-based flame-retardant degradable foam material and a preparation method thereof, the bamboo-based flame-retardant degradable foam material comprises the following raw materials: bamboo powder, polylactic acid PLA, a flame retardant, a coupling agent and a plasticizer according to a ratio of (30-40): (40-50): (5-10): (5-10): (1-5), and the invention relates to the technical field of degradable foam materials. According to the bamboo-based flame-retardant degradable foaming material and the preparation method thereof, bamboo processing residues are crushed and ground to prepare bamboo powder as a matrix, modification and hot-pressing foaming are performed through polylactic acid and ammonium polyphosphate, the novel foaming material with excellent performance is formed, and the whole-chain green upgrading from resource obtaining to product manufacturing is achieved. The material is excellent in performance, has the functions of flame retardance, buffering, heat insulation and biodegradation, is suitable for environment-friendly packaging and green building materials, and effectively replaces traditional petrochemical foam. And bamboo processing residues are fully utilized, so that the additional value is increased, and high-quality development of the bamboo industry in China is assisted.

The application belongs to the technical field of lithium ion batteries, and discloses a polyimide-based composite aerogel material PI@SiO2 and application thereof. The polyimide-based composite aerogel material PI@SiO2 is prepared by introducing silica aerogel with super-strong heat insulation function into a porous aerogel structure framework with high-temperature resistance and flame retardant characteristics, which is composed of polyimide, hydroxyapatite and ammonium polyphosphate through freeze-drying, high-temperature calcination and other methods. The lithium ion battery group heat insulation and flame retardant plate made by packaging the polyimide-based composite aerogel material provided by the application with epoxy resin film or polyurethane film with flame retardant effect can effectively block the spread of battery thermal runaway and ensure that the internal materials of the battery not in thermal runaway are not damaged to a large extent.

The invention belongs to the technical field of polyester fibers, and particularly discloses a preparation process of super-elastic flame-retardant coarse-denier porous PET-DTY (Polyethylene Terephthalate-Draw Textured Yarn). Comprising the following steps: (1) uniformly mixing PET slices, polyvinylidene fluoride, polyvinyl alcohol, polycarbonate resin, coated carbon fibers, titanium dioxide nanoparticles, ammonium polyphosphate, melamine cyanurate, color masterbatch, a pore-foaming agent, a compatilizer and an antioxidant, carrying out melt extrusion, metering, drawing, cooling, oiling, drawing and winding to obtain porous PET fiber POY (Polyester Pre-Oriented Yarn); (2) carrying out heating stretching, false twisting, heat setting and winding on the porous PET fiber POY yarns to obtain porous PET fiber DTY polyester drawn yarns; and (3) spraying the organic silica gel mixed solution on the porous PET fiber DTY polyester filament, and drying with hot air to obtain the super-elastic flame-retardant coarse-denier porous PET-DTY. The porous PET-DTY disclosed by the invention has relatively good strength and wear resistance, and the wear resistance and durability of the DTY are ensured.

The utility model belongs to cable field especially, it is a kind of graphene composite copper conductor anti-interference flame-retardant low-voltage power cable, to the lack of effective temperature monitoring means of current cable, cannot grasp the temperature change in the process of cable operation in real time, anti-interference ability is limited, the weight of traditional cable is larger, the problem of installation and handling difficulty, present and propose following scheme, including graphene composite copper conductor, its inside interval inserts graphene oxide fibre sensor;Crosslinking polyethylene insulating layer covered in the graphene composite copper conductor outside;Polyimide aluminium foil composite tape shielding layer covered in the outside of multiple conductors, in the utility model, thermal response hydrogel microcapsule breaks when contacting high-temperature fire source, releases ammonium polyphosphate flame retardant, and zinc oxide reacts to generate expansion carbon layer, effectively prevents fire spread, realizes flame-retardant self-repair function, graphene oxide fibre sensor interval inserts graphene composite copper conductor inside, can monitor cable temperature change in real time.

The invention discloses a preparation method and application of a slow-release liquid fertilizer containing polysaccharide aldehyde, and belongs to the field of liquid fertilizers, and the preparation method comprises the following steps: S1, preparing a pH-responsive polysaccharide aldehyde gel, S2, preparing an ammonium polyphosphate basic liquid fertilizer, S3, compounding the polysaccharide aldehyde organic gel and the basic liquid fertilizer, and S4, compounding an organic-inorganic composite liquid fertilizer. According to the invention, a molecular bridge coupling technology is taken as a core, and a series of technical bottlenecks of phase separation, stability, fluidity, intelligent release and the like of the polysaccharide aldehyde liquid fertilizer in application are overcome through material selection and structural design; the invention provides the high-performance liquid fertilizer which is environment-friendly, has synergistic functions and is suitable for modernized drip irrigation and the preparation method of the high-performance liquid fertilizer.

The invention provides polyimide-based high-stability and high-adhesion insulating resin and a preparation method thereof. The insulating resin comprises a polyimide prepolymer, an ammonium polyphosphate flame retardant, a silane coupling agent and bisphenol A epoxy resin. A diamine monomer, a dianhydride monomer and hexafluorodianhydride are firstly subjected to condensation polymerization in a solvent, and a polyimide prepolymer is formed under the action of a curing agent bismaleimide, so that the insulating property and the flame retardant property are enhanced; meanwhile, a condensation polymerization product and a curing agent are promoted to be subjected to a cross-linking reaction through heating, and the mechanical property and the structural stability are enhanced. Then, an ammonium polyphosphate flame retardant, a silane coupling agent, bisphenol A epoxy resin and an auxiliary agent are added for continuous reaction, a crude product with a high integration degree is formed, and the mechanical property and the structural stability of the material are further enhanced; meanwhile, the silane coupling agent interacts with the material components and the base material, so that the binding force between the material and the base material is effectively improved, and the adhesive force of the insulating resin is enhanced.

This invention discloses a production process for cationic trilobal profiled recycled polyester fiber, belonging to the field of spinning technology, including the following steps: (1) feeding recycled cationic polyester chips into a crystallization drying system for crystallization drying treatment; (2) melting the dried recycled cationic polyester chips and a modifier, or melting the dried recycled cationic polyester chips to obtain a spinning melt, then conveying the melt to a spinning box, metering it with a metering pump, and then pressing it into a spinning assembly to extrude and form a nascent filament bundle; (3) subjecting the nascent filament bundle to post-heating, airless zone, ring blowing cooling, bundling and oiling treatment, and then to pre-networking, stretching and shaping, and winding to obtain cationic trilobal profiled recycled polyester fiber. The cationic trilobal profiled recycled polyester fiber of this invention can increase the dyeing rate and quick-drying performance of polyester fiber, and the introduction of a core-shell structure with ammonium polyphosphate as the core and chitosan as the shell can increase the flame retardant performance of the fiber.