141 results about "Phosphinate" patented technology

The invention provides a polymer additive and application thereof. The polymer additive is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. The dialkyl phosphinate has a structure as shown in a formula I, and the alkyl phosphinate has a structure as shown in a formula II. According to the invention, through design and compounding synergy of various phosphonates, the flame-retardant effect can be obviously improved, so that the polymer additive has excellent and efficient flame retardance. The polymer additive is used in a polymer material, and a polymer composition containing the polymer additive can have excellent flame retardant property, good toughness, high impact strength and excellent mechanical property and humidity and heat resistance under the condition that the addition amount is small.

The invention belongs to the technical field of flame retardant materials, and provides a polymer additive and a preparation method thereof, and a polymer composition, the polymer additive comprises the following components by mass: 95-99.88 parts of diethyl phosphinate, 0.1-3 parts of ethyl butyl phosphinate, 0.01-1 part of ethyl phosphonate, and 0.01-1 part of monoethyl phosphinate; the water-soluble acid value of the polymer additive is 0.1-0.3 mg KOH / g, and the polymer additive has low acidity, and when the polymer additive is used as a flame retardant for a polymer composition, the generation of high-temperature decomposition of dialkyl phosphinic acid can be slowed down, so that the polymer composition has lower water boiling precipitate content, the use stability of the polymer composition under damp and hot conditions is improved, the service life of the polymer composition is prolonged, and the service life of the polymer composition is prolonged. And moreover, the amount of mold scale generated in the injection molding process is smaller, the injection molding production efficiency can be improved, and the product appearance is improved.

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The flame-retardant ABS composition provided by the invention comprises the following components in parts by mass: 50-80 parts of ABS resin; 8 to 12 parts of styrene-acrylonitrile copolymer; 3 to 5 parts of styrene-acrylonitrile-maleic anhydride terpolymer; 2 to 6 parts of a fluorine-containing maleimide copolymer; 5 to 15 parts of graphite nanosheet modified high rubber powder; 12 to 18 parts of brominated flame retardant; 3-7 parts of a phosphorus-based flame retardant; 0.1-1 part of a processing aid; the phosphorus-based flame retardant is prepared from the following components in parts by mass: 80 to 95 parts of diethyl phosphinate; 0.3 to 3 parts of ethyl butyl phosphinate; 0.1 to 2 parts of ethyl phosphonate; and 5 to 20 parts of melamine polyphosphate. The flame-retardant ABS composition prepared by the invention is good in flame retardant property, good in welding strength and low in cost.

The invention discloses a coating type high-molecular flame-retardant material. The composite material is prepared from the following components: organic silicon modified epoxy resin, a bio-based castor oil derivative, hydroxyapatite, carbon nanofibers, expanded graphite, ammonium polyphosphate, zinc borate, nano silicon dioxide, molybdenum oxide, microencapsulated red phosphorus, magnesium hydroxide, melamine cyanurate, aluminum diethylphosphinate, pentaerythritol, trihydroxymethyl phosphine oxide and a silane coupling agent. The coating is prepared from a titanate coupling agent, stearic acid, polyethylene glycol, 2, 6-butylated hydroxytoluene, triphenyl phosphite, 2, 4-dihydroxybenzophenone, sebacic diester, polytetrafluoroethylene micro powder, a modified polydimethylsiloxane flatting agent, organic montmorillonite, a polyether modified silicon defoaming agent and a solvent. The invention has the beneficial effects of high flame retardant efficiency, environmental friendliness, excellent comprehensive performance and excellent processability.

The invention provides a polyamide composition and application thereof. The polyamide composition comprises the following components in parts by mass: 40-99.5 parts of polyamide, 10-45 parts of a reinforcing material and 5-35 parts of a flame retardant, the flame retardant is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. According to the invention, by introducing the specific flame retardant, an efficient flame retardant effect can be exerted, so that the polyamide composition has excellent flame retardant property and excellent impact resistance.

The invention provides a polyester composition and application thereof. The polyester composition comprises the following components in parts by mass: 40-99.5 parts of polyester resin and 5-35 parts of a flame retardant, the flame retardant is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. According to the flame-retardant polyester composition, the specific flame retardant is introduced, so that the flame-retardant polyester composition plays an excellent and efficient flame-retardant effect, and the polyester composition has excellent flame-retardant property, high deflection, good toughness and bending property and excellent performance in the aspect of mechanical properties.

The invention discloses a polyamide composite material as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The invention provides a polyamide composite material. The polyamide composite material comprises the following components in parts by weight: 30-60 parts of polyamide resin, 12-32 parts of a brominated flame retardant, 4-12 parts of organic phosphinate, 0.1-1 part of a zirconium compound, 0-50 parts of glass fibers, 0-3 parts of an antioxidant and 0-3 parts of a lubricant, and the particle size D50 of the zirconium compound is 0.08-2 [mu] m. According to the antimony-free halogen-containing flame-retardant polyamide composite material provided by the invention, a traditional bromine-antimony flame-retardant system is synergistically replaced by the organic phosphinate and the zirconium compound, and the prepared polyamide composite material has excellent mechanical properties, flame retardance and thermal decomposition stability.

The invention relates to the technical field of silicone rubber, in particular to high-temperature-resistant flame-retardant silicone rubber, a preparation method thereof and a cable, the high-temperature-resistant flame-retardant silicone rubber comprises a gradient layer material composed of a surface layer material, a transition layer material and a core layer material, and the surface layer material comprises methyl vinyl silicone rubber, superfine furnace black, calcium stannate, polyacrylonitrile aerogel and a flame-retardant premix; the transition layer material comprises methyl vinyl silicone rubber, superfine furnace carbon black, spandex fibers, polyarylester, calcium stannate and a flame-retardant premix; the core layer material is prepared from methyl vinyl silicone rubber, superfine furnace black, aramid fiber, polyarylester, phthalonitrile resin and 2-mercaptobenzothiazole zinc salt; wherein the flame-retardant premix is prepared from hydroquinone bis (diphenyl) phosphate, phenyl ethyl aluminum phosphinate and zinc hypophosphite according to the weight ratio of (6 to 10): (2 to 4): (1 to 3); the problems that an existing material is prone to aging in an extreme environment, the flame retardant effect is poor, and the mechanical property is degraded are effectively solved.

The invention relates to the technical field of cables, in particular to a multi-layer co-extrusion cable based on a low-smoke halogen-free flame-retardant composite layer and a preparation method of the multi-layer co-extrusion cable based on the low-smoke halogen-free flame-retardant composite layer, and the multi-layer co-extrusion cable structurally comprises a conductor layer, a double-layer insulating layer, a reinforced buffer layer and a composite sheath layer from inside to outside in sequence; wherein the double-layer insulating layer comprises an inner layer and an outer layer; the inner layer takes an ethylene-octylene copolymer as a core layer and takes a norbornene dianhydride grafted polyether ester elastomer as a shell layer, so that the material is endowed with high elasticity and impact resistance, and the cracking of the insulating layer is inhibited; the modified nano montmorillonite is dispersed into a nano lamellar barrier, so that heat diffusion is delayed, and low smoke and zero halogen are realized; the outer layer is composed of an ethylene-methyl acrylate matrix and di-tert-butyl phosphinic acid aluminum salt, the di-tert-butyl phosphinic acid aluminum salt is decomposed at high temperature to generate aluminum phosphate, a carbon layer is formed to isolate oxygen heat, and phosphorus-containing free radicals capture active free radicals to interrupt flame propagation.

The invention provides a polymer additive, a preparation method thereof and a polymer composition containing the polymer additive, and the preparation method comprises the following steps: carrying out free radical reaction on a hypophosphite aqueous solution and an antioxidant with ethylene in the presence of an initiator to obtain a diethyl phosphinate aqueous solution; mixing the diethyl phosphinate aqueous solution, the metal salt aqueous solution and the alkali liquor, and reacting under the condition that the pH value is 3.5-3.8 to obtain diethyl phosphinate metal salt slurry; mixing and stirring the diethyl hypophosphorous acid metal salt slurry and a flocculating agent to obtain a diethyl hypophosphorous acid metal salt flocculate, filtering, washing and drying to obtain the polymer additive. Through the design of the preparation method, the polymer additive with low acid value and high thermal stability can be obtained, the polymer additive is used as a flame retardant to prepare a polymer composition, injection mold scale can be reduced, the polymer composition has fewer water boiling precipitates, and the stability of the polymer composition under damp and hot conditions is improved.

The invention relates to the field of additives, in particular to a polymer additive and application thereof, which are used for solving the problem that the existing dialkyl phosphinate is insufficient in flame retardant efficiency and contradictory in mechanical property in practical application. Diethyl phosphinate, dialkyl phosphinate, alkyl phosphinate, alkyl phosphinate and phosphite are reasonably compounded to prepare the polymer additive, so that the polymer additive has excellent and efficient flame retardance and also can be endowed with excellent compatibility, the polymer additive is used in a polymer material, and the flame retardance of the polymer material is improved. According to the present invention, with the flame retardant, the polymer material containing the flame retardant can have advantages of excellent flame retardant property, good toughness, high impact strength and excellent mechanical property under the condition of the small addition amount.

The application provides a polyamide composition and application thereof, the polyamide composition comprises the following components in parts by mass: polyamide 40-99.5 parts, reinforcing material 10-45 parts, and flame retardant 5-35 parts; the flame retardant comprises the following components in parts by mass: diethyl phosphinate 30-90 parts, ethyl phosphinate 0.01-3 parts, dihydrocarbyl phosphite 5-67 parts, and hydrocarbyl phosphite 0.01-5.5 parts. The application can play the effect of efficient flame retardation by introducing specific flame retardants, so that the polyamide composition has excellent flame retardation and excellent impact resistance.

The invention discloses a polyamide / polyphenyl ether alloy material and a manufacturing method thereof, and is used for solving the problems that an existing polyamide / polyphenyl ether alloy material cannot meet UL94 V-0-level flame retardance, high insulativity of CTI greater than or equal to 700V and low precipitation (lt) after long-term damp-heat aging at the same time under the ultra-thin thickness of 0.6 mm; 0.1%) and a high performance retention rate (gt; 90%). The polyamide / polyphenyl ether alloy material comprises the following components in parts by mass: 55-75 parts of polyamide 66 resin; 25 to 45 parts of polyphenyl ether resin pre-irradiated by gamma rays; 10 to 20 parts of a silicone-coated diethyl aluminum phosphinate flame retardant with a core-shell structure; 5-10 parts of a maleic anhydride grafted high impact polystyrene compatilizer pre-irradiated by gamma rays; 20-30 parts of hydrolysis-resistant glass fiber of which the surface is treated by a silane coupling agent; 3-8 parts of tetrapod-like zinc oxide whiskers; 2 to 5 parts of a CTI synergist; and 1-2 parts of an anti-precipitation agent.

The application belongs to the field of polymer composites, and particularly relates to a synergistic flame-retardant composite material for fireproof doors and a preparation method thereof; aiming at the problem that excessive addition of a flame retardant can cause the mechanical property of a composite material to decrease; the application improves the dispersibility of nano-zinc oxide in a PVC matrix through citric acid / phytic acid composite modification, and forms a high-efficiency synergistic flame-retardant system by compounding with aluminum diethyl phosphinate and melamine cyanurate; by constructing a gradient functional structure of a high-flame-retardant region and a low-flame-retardant region, and cooperating with a co-extrusion process, the damage of the flame retardant to the mechanical property of the matrix is reduced while the overall excellent flame-retardant property of the material is ensured.

A halogen-free flame retardant polymer composition is disclosed. The polymer composition comprises a thermoplastic polymer, such as polybutylene terephthalate. The thermoplastic polymer is combined with a flame retardant, which comprises a phosphinate, a phosphite and a nitrogen-containing synergist. In addition, the composition may contain a fluorine-containing polymer and an organic metal compatibilizer. Even if the flame retardant composition contains a thermoplastic polymer in an amount greater than 60 wt %, the flame retardant composition exhibits excellent flame retardancy.

To provide a technique capable of securing flame retardancy by reducing the use amount of a halogen-based flame retardant and an antimony-based flame retardant, or without using the halogen-based flame retardant and the antimony-based flame retardant.SOLUTION: A polyurethane foam obtained from a composition comprising a polyol, a polyisocyanate, and a flame retardant, wherein the flame retardant comprises a phosphinate ester and a phosphate ester.SELECTED DRAWING: None

A copolyester composition comprising a metal phosphinate flame retardant, an acrylic silicone impact modifier, and a silicate mineral, which provides high tensile and / or flexural modulus while maintaining thermal and impact properties and having improved flame retardant properties, a method for manufacturing the copolyester composition, and an article manufactured from the copolyester composition are provided.

The application provides a preparation method and application of a core-shell structured magnesium-aluminum double-metal hydroxide coated aluminum diethyl phosphinate composite halogen-free flame retardant, and solves the technical problem of poor stability and flame retardant effect of existing phosphorus-containing flame retardants in water-based paint emulsion; the preparation method of the composite halogen-free flame retardant comprises the following steps: S1. magnesium salt and aluminum salt are weighed and dissolved in an appropriate amount of water, an appropriate amount of non-ionic surfactant is added, and then aluminum diethyl phosphinate powder is added to form a mixed solution; S2. a precipitant is added dropwise to the mixed solution in step S1 to perform a co-precipitation reaction, and after the reaction endpoint is adjusted to an appropriate pH of the mixed solution, aging is performed to obtain a co-precipitation precursor slurry; S3. the co-precipitation precursor slurry after aging in step S2 is transferred to a hydrothermal reaction kettle, and after hydrothermal treatment, the slurry is subjected to solid-liquid separation, washing and drying to finally obtain the core-shell structured magnesium-aluminum double-metal hydroxide coated aluminum diethyl phosphinate composite halogen-free flame retardant; and the composite halogen-free flame retardant can be widely applied to the technical field of halogen-free flame retardants.

This invention provides a disubstituted phosphonate compound, its preparation method, and its applications, belonging to the technical field of organophosphorus flame retardants. The disubstituted phosphonate compound provided by this invention exhibits excellent flame retardant properties. It is synthesized in a one-step process using phosphonates and halogenated compounds as raw materials. Compared to existing traditional synthesis methods, this method offers higher yields, fewer and easier-to-separate byproducts, a simpler process, shorter processing time, greater safety and environmental friendliness, lower cost, and easier implementation. The flame-retardant epoxy resin cured products prepared using the disubstituted phosphonate compound as a raw material exhibit excellent flame retardant properties and are transparent and clear. The flame-retardant epoxy resin cured product specimens prepared in Examples 1-3 of this invention show significantly better flame retardant effects than those in Comparative Examples 1-2. Furthermore, the flame-retardant epoxy resin cured products prepared in Examples 1-3 are all clear and transparent with superior physical properties.

The invention discloses a flame-retardant lead-boron modified polyethylene composite shielding material and a preparation method thereof. The flame-retardant lead-boron modified polyethylene composite shielding material is prepared from the following components in percentage by weight: 14 to 16 percent of ultrahigh molecular weight polyethylene powder, 0.5 to 3 percent of boron carbide powder, 70 to 80 percent of lead powder of which the purity is greater than or equal to 99.5 percent, 5 to 10 percent of modified aluminum diethylphosphinate, 0.1 to 0.2 percent of antioxidant and 0.1 to 0.2 percent of lubricant, wherein the lead powder comprises 200-mesh granular lead powder and 300-500-mesh spherical lead powder, the mass ratio of the 200-mesh granular lead powder to the 300-500-mesh spherical lead powder is 1: 1, and the modified aluminum diethyl phosphinate is silane coupling agent modified aluminum diethyl phosphinate. The shielding performance of the prepared flame-retardant lead-boron modified polyethylene composite shielding material is equivalent to that of a conventional lead-boron polyethylene material, and the flame-retardant lead-boron modified polyethylene composite shielding material has excellent flame retardance and physical and chemical properties, the oxygen index of the flame-retardant lead-boron modified polyethylene composite shielding material is greater than or equal to 32, and the vertical combustion method reaches V0 level.

A process for manufacturing a masterbatch comprises the following steps: (a) bringing at least one initial polymer comprising at least one carbon-carbon unsaturation into contact with at least one 1,3-dipolar grafting agent bearing at least one nitrile oxide dipole in the presence of at least one organophosphorus additive selected from the group consisting of phosphoric acid triesters, phosphonates, phosphinates, phosphine oxides and the mixtures of these compounds, and (b) recovering the masterbatch obtained in the preceding step. The masterbatch and compositions containing it and also tires comprising such compositions are also disclosed.

To provide a polyamide resin composition capable of achieving both high flame retardancy and impact resistance at low temperature.SOLUTION: The polyamide resin composition contains a polyamide resin (A), a modified ethylene / α - olefin copolymer (B) modified with an unsaturated carboxylic acid or a derivative thereof, a phosphinate (C), a nitrogen-containing (poly) phosphate (D), and an inorganic filler (E).SELECTED DRAWING: None

The application provides a flame retardant composition and application thereof and a polyamide composite material, the flame retardant composition comprises 5-15 parts of a dialkyl phosphinic acid metal salt and 0.5-4 parts of an imidazolium dialkyl phosphinate salt in terms of weight parts. The flame retardant composition, by compounding the imidazolium dialkyl phosphinate salt with the dialkyl phosphinic acid metal salt, can effectively improve the flame retardant efficiency, mechanical properties and precipitation resistance of the material, and meanwhile can reduce the content of the dialkyl phosphinic acid metal salt in the resin system.

The invention provides a dialkyl phosphorus-containing compound, namely a reactive monohydroxy-functional dialkyl phosphinate, in a blend with a phosphate compound, which acts as a highly effective reactive flame-retardant blend in flexible polyurethane foams. The invention further provides a flame-retardant polyurethane composition comprising the reaction product of the flame-retardant blend with a polyol and isocyanate foam-forming components.

A copolyester composition, a method of making the copolyester composition, and an article made from the copolyester composition, the copolyester composition comprising a metal phosphinate flame retardant, a polymeric impact modifier, and / or a reinforcing filler material, the copolyester composition having improved flame retardant properties while providing high impact strength, elongation at break, and tensile and / or flexural modulus.

The polyamide resin composition of the present invention is characterized by comprising 100 parts by weight of an aliphatic polyamide resin; 65 to 135 parts by weight of glass fiber; 35 to 65 parts by weight of glass powder; 5 to 28 parts by weight of kaolin; and 25 to 75 parts by weight of a flame retardant comprising one or more of a metal phosphinate compound and a phosphate nitrogen compound. The polyamide resin composition has excellent flame resistance, flame retardancy, impact resistance, rigidity, thermal stability, and a balance of these physical properties.

Provided are a copolyester composition comprising a metal phosphinate flame retardant, an acrylic silicone impact modifier and a silicate mineral that has improved flame-retardant properties while providing high tensile and / or flexural modulus and retaining thermal and impact properties, methods of making the copolyester composition and articles made from the copolyester composition.

The invention belongs to the technical field of fine chemical production, and provides aluminum dibutenyl phosphinate as well as a preparation method and application thereof. The dibutenyl aluminum phosphinate disclosed by the invention has the following structural formula. The aluminum dibutenyl phosphinate has the advantages of high carbon formation, high flame retardant efficiency and small addition amount. The invention also provides a preparation method of aluminum dibutenyl phosphinate. According to the preparation method, a first-stage butenylation reaction, a second-stage butenylation reaction and a third-stage butenylation reaction are sequentially carried out in a butadiene atmosphere. Due to the fact that the speed of the addition reaction is low when the pressure of gasified butadiene is 0.2-0.3 MPa, a mode of gradient temperature rising is adopted for firstly preparing a butene intermediate, then the temperature is increased, and then the other stage is carried out, safe production is guaranteed, impurity production is avoided, and high-purity aluminum dibutenyl phosphinate can be obtained after solid-liquid separation. Meanwhile, the preparation method is simple and suitable for industrial production. .

Disclosed is a long fiber reinforced polymer composition having excellent flame retardant properties. The flame retardant composition may include a flame retardant system that includes a metal phosphinate in combination with a high level of a synergist (e.g., a polyphosphate). The composition can exhibit excellent flame retardant properties at a very small thickness.