9 results about "Guanidine Phosphate" patented technology

The invention belongs to the technical field of multifunctional fabric manufacturing, and particularly relates to a flame-retardant, antibacterial and hydrophobic cotton-polyester blended fabric and a preparation method thereof. A simple padding and baking method is adopted, polyethyleneimine, guanidine phosphate and boric acid are compounded to serve as functional finishing liquid to conduct padding on the fabric, then hydrophobic polymer spraying liquid is adopted for spraying, and the flame-retardant function, the antibacterial function and the hydrophobic function are successfully integrated into the cotton-polyester blended fabric. The polyethyleneimine effectively fixes the guanidine phosphate and the boric acid on the fabric, the guanidine phosphate and the boric acid can play an efficient phosphorus-nitrogen-boron synergistic flame-retardant role during combustion, formation of a compact carbon layer is promoted, and meanwhile efficient broad-spectrum antibiosis is achieved. The polydimethylsiloxane is attached to the surface of the cotton-polyester blended fabric, water molecules are difficult to spread on the surface of the cotton-polyester blended fabric, the lower flame-retardant / antibacterial layer is physically protected, the loss of the lower flame-retardant / antibacterial layer in washing or friction is reduced, the fabric is endowed with washable and wear-resistant hydrophobicity, the process is simple, the energy consumption is low, and the production efficiency is improved.

The invention discloses a multi-element synergistic flame-retardant water-based composite emulsion and a preparation method thereof.According to the multi-element synergistic flame-retardant water-based composite emulsion and the preparation method thereof, through synergistic flame retardance of multiple elements of silicon, phosphorus, nitrogen and boron, the flame retardant property of the water-based emulsion is remarkably improved, meanwhile, a boron-containing cellulose-based reinforcing agent is introduced, and guanidine phosphate and sodium silicate are added into the water-based emulsion, so that the flame retardance of the water-based emulsion is improved; through electrostatic interaction and wide hydrogen bond network effect, the mechanical properties of the emulsion are significantly enhanced on the basis of synergistic flame retardance. The oxygen index of the composite emulsion can reach 33.2%, the flame retardant grade can reach the V-0 grade of UL-94, and the mechanical property is improved. The flame retardant and the reinforcing agent used in the method can be well dispersed in the water-based composite emulsion, the influence on the color of the emulsion is small, and the method has the advantages of being simple in process, environmentally friendly and wide in application prospect.

The invention discloses 3D printing photosensitive resin with improved flame retardance and a preparation method. The 3D printing photosensitive resin with improved flame retardance comprises the following components in parts by weight: guanidine phosphate modified polyurethane acrylate, a monomer, a photoinitiator, an antioxidant, a flame retardant and a filler. The preparation method of the modified polyurethane acrylate comprises the following steps: S1, putting guanidine phosphate containing hydroxyl and polyethylene glycol diisocyanate containing two-NCO into a stirring device, and stirring; s2, polypropylene containing hydroxyl is continuously put into the stirring device; s3, guanidine phosphate is continuously added into the stirring device, and guanidine phosphate modified polyurethane acrylate is prepared. The flame-retardant printing ink has a flame-retardant effect, and the phenomenon that the printing success rate is affected due to additional additive components is reduced.

The invention discloses a high-scratch-resistance automobile armrest coating part and a preparation process thereof, and relates to the technical field of automobile armrest coating parts. Double bonds in the modified ethylene propylene diene monomer and 3-thiohydracrylic acid are subjected to a thiol-ene click reaction, so that the dynamic fatigue performance is improved; carboxyl is introduced to react with epoxy groups to construct an efficient cross-linked network, so that the compatibility is improved, and the mechanical property is remarkably enhanced; dicumyl peroxide is decomposed to generate free radicals, the free radicals and a modified ethylene propylene diene monomer molecular chain form a high-density cross-linked network, the elasticity and heat resistance of the material are improved, meanwhile, modified ethylene propylene diene monomer particles are dispersed in a thermoplastic elastomer matrix, and the scratch resistance is remarkably improved. Modified boron nitride is added, phosphomolybdic acid and guanidine phosphate are subjected to electrostatic adsorption to form an intumescent flame-retardant synergistic layer, and in addition, an inorganic filler and a flame retardant enhance rigidity and flame retardance; and the ethylene-zinc acrylate ionomer can improve the adhesion and the scratch resistance. The product can be widely applied to the field of automobile industry.

The invention relates to the technical field of cables, and provides a crosslinked polyethylene insulation type rat-proof and ant-proof flame-retardant control cable which sequentially comprises a conductor, a conductor shielding layer, a crosslinked polyethylene insulation layer, an insulation shielding layer, a metal shielding layer, a steel tape armoring layer and an outer sheath layer from inside to outside. The outer sheath layer comprises the following components in parts by weight: 60-80 parts of polyvinyl chloride resin, 15-20 parts of ethylene propylene diene monomer, 6-10 parts of chlorinated polyethylene, 17.5-22.4 parts of guanidine phosphate modified montmorillonite, 4.8-10.5 parts of zinc borate, 8-12 parts of carbon black, 1-1.2 parts of a vulcanizing agent, 0.5-0.8 part of an assistant vulcanizing agent, 8-14 parts of a plasticizer, 4-7 parts of a rat-proof and ant-proof agent and 1-3 parts of an antioxidant. According to the technical scheme, the problem of poor flame retardance of the control cable in the prior art is solved.

This invention discloses a three-dimensional graphene oxide composite foam material with both antibacterial and high uranium selectivity, and its preparation method, belonging to the fields of environmental functional materials and seawater uranium extraction technology. Using graphene oxide (GO) as the matrix, this invention introduces superhydrophilic polyethyleneimine (PEI), highly uranium-selective poly(amine oxime) (PAO), and guanidine phosphate polymer (PGdn) with both antibacterial and uranium coordination capabilities, and prepares the GO-PEI-PAO-PGdn (GPP-PGdn) composite foam material through a one-step covalent cross-linking method. The material prepared by this invention has a three-dimensional interconnected porous structure, superhydrophilic properties, and excellent uranium selectivity. The uranium partition coefficient Kd value in natural seawater reaches as high as 18250 mg / L, and the uranium removal rate reaches 87.65%, achieving highly selective uranium enrichment. Simultaneously, it has significant antibacterial effects against Escherichia coli and Staphylococcus aureus, effectively solving the problem of biofouling during seawater uranium extraction. The material prepared by this invention has a mild and controllable process that can be scaled up and can be widely used in fields such as trace uranium enrichment and uranium-containing radioactive wastewater treatment. It also has excellent adsorption performance, cycle stability and environmental resistance.

According to the flame retardant for the plywood and the preparation method of the flame retardant, the phosphorus-nitrogen-magnesium synergistic flame retardant effect of guanidine phosphate and nano magnesium hydroxide is utilized, the limit oxygen index is increased, dripping is avoided during vertical combustion, open fire spreading is avoided, the combustion time is shortened, a chain reaction is blocked, the flame retardant efficiency is nearly doubled, and the problem that the combustion performance of the plywood is poor is solved; the preparation method has the advantages of no need of newly adding complex equipment, good adaptability with an existing production line, only additional arrangement of an auxiliary device, strong compatibility, low modification difficulty, controllable cost, reduction of preparation energy consumption, no emission of harmful wastes, conformity with environmental protection requirements, simple preparation method, small environmental influence, suitability for mass production, simple and convenient plywood treatment operation, easy parameter control, and wide application prospect. And a scientific basis is provided for research and development of green flame-retardant wood materials.

The invention discloses a preparation method and flame-retardant application of hypophosphorous acid, and relates to the technical field of flame retardants. The preparation method comprises the following steps: adding a hypophosphorous acid aqueous solution into a kneading machine, adding water for dilution under a stirring condition, then adding guanidine carbonate, closing a cover under a heating condition, stirring and reacting for 0.8-1.2 hours, condensing, refluxing and evaporating water, continuing to react for 1.5-2.5 hours, leading out generated excessive water, and finally drying in vacuum to finish the preparation. The invention also discloses application of guanidine hypophosphite as a flame retardant. According to the invention, high-yield preparation of guanidine hypophosphite is realized by regulating and controlling reaction conditions, the prepared guanidine hypophosphite is relatively high in water solubility, and meanwhile, the flame retardant efficiency is remarkably superior to that of flame retardant products of the same type, so that the preparation method has relatively high application value.

The application discloses a multi-element synergistic flame-retardant water-based composite emulsion and a preparation method thereof. The application realizes multi-element synergistic flame-retardant through silicon, phosphorus, nitrogen and boron, thereby significantly improving the flame-retardant performance of the water-based emulsion. Meanwhile, the introduction of the boron-containing cellulose-based reinforcing agent, together with guanidine phosphate and sodium silicate in the water-based emulsion, significantly enhances the mechanical performance of the emulsion on the basis of synergistic flame-retardant through the existing electrostatic effect and extensive hydrogen bond network effect. The oxygen index of the composite emulsion can reach 33.2%, the flame-retardant grade can reach V-0 grade of UL-94, and the mechanical performance is increased. The flame retardant and the reinforcing agent used in the application can be well dispersed in the water-based composite emulsion, have little influence on the color of the emulsion, and have the advantages of simple process, green environmental protection and wide application prospect.