164 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 engineering plastics, and particularly relates to a high-flame-retardant composite material and a preparation method thereof. The composite material comprises the following components: long-carbon-chain semi-aromatic nylon, a fiber reinforced filler, a flexibilizer, alkyl aluminum phosphinate, nano montmorillonite, a zinc ion ionomer, a coupling agent, a lubricant and an antioxidant. Alkyl aluminum phosphinate is used as a main flame retardant, and nano-montmorillonite and a zinc ion ionomer are used as auxiliary flame retardants. The nano-scale montmorillonite has certain adsorption performance, and can prevent the alkyl aluminum phosphinate flame retardant from being separated out in the processing process. The zinc ion ionomer is easier to disperse in a long-carbon-chain semi-aromatic nylon resin matrix relative to alkyl aluminum phosphinate and nano-montmorillonite, and ion groups contained in the zinc ion ionomer can generate an ionic crosslinking effect with ions in alkyl aluminum phosphinate and nano-montmorillonite, so that the mechanical property and the thermal stability of the composite material are improved; and moreover, the melt viscosity is improved, and the molten drop phenomenon during combustion is prevented.

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 glass fiber reinforced halogen-free flame-retardant high glowing filament PBT (polybutylene terephthalate) modified material and a preparation method thereof, and the glass fiber reinforced halogen-free flame-retardant high glowing filament PBT modified material comprises the following components in parts by weight: 28.5-44.5 parts of PBT resin, 0-10 parts of PET (polyethylene terephthalate) resin, 18-25 parts of a compound of organic hypophosphite and inorganic hypophosphite, 5-14 parts of a glowing filament synergist and 1-5 parts of a modified toughening agent, the invention relates to the technical field of high polymer materials, in particular to a high polymer material which comprises the following components in parts by weight: 0.1-0.5 part of an anti-transesterification agent, 0.2-1 part of an antioxidant, 0.2-1 part of a lubricant and 15-30 parts of glass fibers. The glowing filament has high mechanical properties and good fireproof performance, can meet the market demand that the glowing filament at 750 DEG C is not ignited in the whole process, meets the latest environment-friendly control requirement on the market, and has wide market application prospects.

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.

According to the preparation method of the phosphorus-nitrogen composite carrier-free flame-retardant master batch provided by the invention, before the carrier-free master batch is prepared, a powder flame retardant is subjected to coating modification treatment, so that the compatibility of the powder flame retardant and a base material can be improved, and especially for a hydroxide or oxide acid acceptor, the deterioration effect of the hydroxide or oxide acid acceptor on the material can be remarkably relieved through the coating modification treatment of the powder flame retardant. On the other hand, the physical properties of main components (organic phosphinate and polyphosphate are weakly acidic) and weak acid of the compound flame retardant are blended to a certain extent, and the organic phosphinate and polyphosphate are respectively coated with double layers of coating materials, so that the interaction between the organic phosphinate and polyphosphate can be weakened, the abrasion of the weak acid to equipment is relieved, and the service life of the equipment is prolonged. And the physical properties of the base material can be better maintained.

The present invention provides a halogen-free flame-retardant polyamide composite material and a preparation method and application thereof. The halogen-free flame-retardant polyamide composite material comprises the following components by mass: 25-60 parts of polyamide resin, 15-40 parts of DOPO compound-coated glass fiber, 12-30 parts of organic phosphinate flame retardant, 3-10 parts of synergistic flame retardant, and 1-3 parts of free radical scavenger. Through the design and synergistic effect of DOPO compound-coated glass fiber and free radical scavenger, and compounding with organic phosphinate flame retardant and synergistic flame retardant, the halogen-free flame-retardant polyamide composite material has high GWIT and excellent flame retardancy, and the aging resistance is significantly improved, so that it can maintain color stability under long-term light-oxidation aging conditions, and has excellent mechanical properties and moisture-heat resistance, which fully meets the performance requirements of industries such as electronic appliances, energy storage, and connectors.

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 polymer additive, a flame retardant, a polymer molding material and a preparation method and application thereof. The polymer additive is prepared from aluminum diethyl phosphinate and aluminum ethyl butyl phosphinate; the polymer additive satisfies a double enthalpy ratio [Delta] H defined by the following formula (1): 0.90 < = [Delta] H < = 1.05; 135 DEG C < = T1 < = 160 DEG C, 165 DEG C < = T2 < = 185 DEG C, and 180 DEG C < = T3 < = 200 DEG C; formula (1): [Delta] H = (H2 + H3) / H1. The polymer additive provided by the invention has a specific crystal transformation state, and the polymer molding material added with the polymer additive has a lower molding shrinkage rate in a molding application process.

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.

The present invention relates to a flame retarded insulating composition for covering electric battery busbars, comprising by weight: (a) from 30 to 65%, more particularly from 30 to 63.9%, in particular from 30 to 60%, of at least one semi-crystalline aliphatic polyamide, (b) from 15 to 40%, more particularly from 15 to 30%, of at least one semi-aromatic polyamide, (c) from 15 to 30%, more particularly from 20 to 25%, of at least one phosphinate flame retardant, (d) from 5 to 20%, more particularly from 5 to 15%, of at least one functionalized polyolefin, (e) from 0 to 6%, more particularly from 1 to 6%, in particular between 2 and 4%, of at least one plasticizer, (f) from 0 to 10%, more particularly 10 from 0.1 to 5%, of at least one additive, the sum of the constituents (a) to (f) being equal to 100%.

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 organic phosphonate containing the olefin structure is prepared by adopting dialkyl phosphinic acid / dialkyl phosphinate / dialkyl phosphinate as an initiator, the organic phosphonate is simple in structure and convenient to synthesize, high-pollution and high-toxicity substances are prevented from being used, the synthetic structure is clear, and the temperature resistance cannot be affected by residues of reactive hydrogen on phosphorus. The synthesized organic phosphonate containing the carbon-carbon double bond can react with resin, the whole flame retardant molecule is directly connected into a resin molecular chain, good flame retardant performance is provided under the condition that the addition amount is low, and due to the fact that the addition amount is low, the resin has the higher retention rate of mechanical performance and electrical performance at the same time; the synthesized organic phosphonate containing the carbon-carbon double bonds can also be subjected to a copolymerization reaction with active olefins containing double bonds such as styrene, acrylic acid and maleic anhydride, the application scene of the organic phosphonate is widened, and the organic phosphonate can be widely applied to the technical field of flame retardants.

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.