40 results about "Phospholenes" patented technology

A proppant comprises a particle and a polycarbodiimide coating disposed on the particle. The polycarbodiimide coating comprises the reaction product of an isocyanate reacted in the presence of a phospholene oxide catalyst. A method of forming the proppant comprises the steps of providing the particle, providing the isocyanate, providing the phospholene oxide catalyst, reacting the isocyanate in the presence of the phospholene oxide catalyst to form the polycarbodiimide coating, and coating the particle with the polycarbodiimide coating.

Disclosed are a macrocyclic carbodiimide (MC-CDI) and a process for synthesizing the same through condensation of a molecule with multiple-isocyanate terminal functional groups under high dilution in the presence of a phospholene catalyst such as phospholene or arsenic catalyst. Also disclosed are MC-CDI derivatives, such as MC-urea (MC-U), MC-acylurea (MC-ACU), acid functionalized MC-ACU, and anhydride functionalized MC-ACU, processes for synthesizing the same, and the applications of such derivatives as hydrolysis stabilizers in organic polymeric materials, such as polyurethane (PU) and polyesters, as well as the applications in the syntheses of the amide- and imide-modified polyurethane by ring-opening reaction of the MC-ACU.

The present invention relates to a kind of preparation method of flame retardant methylphenylmethoxy (phosphacyclomethoxy) silane compound, the structure of the compound is shown in the following formula: the preparation method is: under the protection of nitrogen, add an organic solvent, Then add 1-oxygen-1-methyl-4-ethyl-4-hydroxymethyl-2, 6-dioxa-1-phosphorinane and methylphenyldimethoxysilane to control its The molar ratio is 1:1-1:1.4, the temperature is raised to 100-140°C, the temperature at the top of the fractionation column is controlled not to be higher than 65°C, and the generated methanol is fractionated, and the fractionation reaction is 6-10h until the fractionated methanol reaches the theoretical amount. The reaction is stopped, and after purification treatment, methylphenylmethoxyl (phosphacyclomethoxyl) silane is obtained; the product of the present invention has high flame retardancy, good compatibility with macromolecules, and is suitable for use as polyvinyl chloride, polyurethane, Flame retardant for polyester, unsaturated resin, epoxy resin, furan resin, polyvinyl alcohol and other materials. The preparation process is simple, the equipment investment is small, the large-scale production is easy, and the application and development prospects are very good.

The invention discloses a porous three-dimensional phosphorene and its preparation method and application. The porous three-dimensional phosphorene has a stable three-dimensional structure formed by the self-crosslinking assembly of black phosphorene, the porosity is 50% to 98%, and the specific surface area is 200~2000m 2 / g. In the present invention, a strong electric field is applied in a two-electrode or multi-electrode system through an electrochemical method, and the intercalation agent and the auxiliary intercalation agent move directionally to the black phosphorus crystal and enter the interlayer, destroying the interlayer force of the black phosphorus crystal, and making the black phosphorus crystal The phosphorus layers maintain cross-linking but the interlayer distance increases, so that the black phosphorus crystals expand and the pores become larger, and the expanded black phosphorus is treated by freeze-drying to obtain porous three-dimensional black phosphorene. The porous three-dimensional black phosphorene has excellent physical and chemical properties, which can not only increase the wettability of the electrolyte to the electrode material, but also facilitate the adsorption and diffusion of reactants and metabolites during the reaction process, which can be applied to electrochemical catalytic hydrogen production field.

The invention relates to a rhodium / phosphorene supported catalyst and its preparation method and application. The rhodium / phosphorene supported catalyst consists of sheet-layer phosphorene and RhCl 3 Made, the preparation method comprises: black phosphorus is assisted by liquid-phase ultrasonic exfoliation to obtain graphene-like sheet structure; RhCl 3 Dissolved in deionized water, stirred evenly, added to the sheet-layer phosphorene according to the proportion, reacted at 30-150°C for 60-600min, and then centrifuged and dried to obtain the product. The preparation method of the rhodium / phosphorene supported catalyst is simple, convenient and environmentally friendly; the prepared supported catalyst has high activity and good performance. The prepared supported catalyst is used for hydrogenation catalysis of rubber to achieve a higher degree of hydrogenation.

The invention belongs to the field of heat-conducting materials, and discloses a preparation method and application of a green nano-cellulose high heat-conductivity composite film. The green nanocellulose high thermal conductivity composite film is prepared by firstly preparing the amidated phosphorene by ball milling, then covalently reacting with carboxymethyl chitosan, and finally adding it to the nanocellulose solution; the The mass ratio of the aminated phosphorene to the carboxymethyl chitosan is 1:1 to 1:10; the mass ratio of the aminoated phosphorene / carboxymethyl chitosan to the nanocellulose is 1:1 to 1: 10. The green nanocellulose high thermal conductivity composite film of the present invention has a thermal conductivity greater than 5 W / m·k in the plane direction.

The invention relates to a preparing method for a phosphorus-silicon synergistic flame retardant phenyl dimethoxy (phosphor heterocycle methoxyl) silicane compound. The structure of the compound is as shown in the description. The preparing method comprises the steps that under protection of nitrogen, the mole ratio of 1-oxo-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphorinane to phenyl trimethoxy silane is controlled to be 1:1-1:1.4, organic solvent is added, temperature is raised to 100 DEG C-140 DEG C, the temperature of a fractional distillation column top is controlled to be not higher than 65 DEG C, generated methyl alcohol is distilled, the fractional distillation reaction is carried out for 5-9 h, the reaction is not stopped until the quantity of methyl alcohol distilled reaches the theory amount, and purification is carried out to obtain phenyl dimethoxy (phosphor heterocycle methoxyl) silicane. The compound is suitable for serving as flame retardant of materials such as polyvinyl chloride, polyurethane, unsaturated polyester resin, epoxy resin, furan resin and polyvinyl alcohol, the production technology is simple, equipment investment is small, industrialized production is achieved easily, and the compound has good application and development prospects.