115 results about "Brominated flame retardant" patented technology

The invention discloses a flame-retardant reinforced polycarbonate composite material and a preparation method thereof, and belongs to the technical field of polycarbonate composites.The flame-retardant reinforced polycarbonate composite material comprises 70%-90% of polycarbonate resin, the polycarbonate resin is aromatic polycarbonate with the viscosity average molecular weight ranging from 20000 to 35000; the glass fiber is alkali-free chopped E glass fiber, and the surface of the glass fiber is treated by an amino silane coupling agent; the flame retardant comprises 5-15% of a phosphorus-nitrogen-silicon composite flame retardant, the composite flame retardant is a synergistic system formed by physically premixing a phosphate ester compound, a nitrogen charring agent and a silicone polymer, and the phosphate ester compound plays a role in gas-phase flame retardance and partial condensed-phase flame retardance during combustion. By adopting a phosphorus-nitrogen-silicon composite flame-retardant synergistic system, high flame-retardant efficiency is realized under the condition of low additive amount, the halogen-free and environment-friendly effects are realized, and the environmental and health hidden dangers of the traditional brominated flame retardant are overcome.

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.

Disclosed in the present invention are a PBT composition, a preparation method therefor, and a use thereof. The PBT composition comprises the following components in parts by weight: 45-55 parts of a PBT resin, 1.5-6 parts of an SAN resin, 1.5-4 parts of a toughening agent, 8-12 parts of a brominated flame retardant, 1.5-3 parts of a flame-retardant synergist, and 0.25-2 parts of a silicone lubricant. By means of the synergistic effect of the SAN resin and the silicone lubricant, the rate of carbon formation when an electrolyte drips onto the material surface can be greatly reduced, so that the prepared PBT composition has relatively high CTI and relatively good mechanical properties and flame retardant properties.

In one aspect, the present disclosure relates to a flame retardant plastic composition comprising a polymer component and a brominated flame retardant (BrFR), where the BrFR comprises one or more particles at least partially encapsulated by a thermoplastic toughening agent. In some aspects, the encapsulation can take the form of a core-shell structure wherein the shell has an average thickness of about 5 nm to 10 [mu] m. The thermoplastic toughening agent can be selected from the group consisting of styrenic block copolymers, thermoplastic polyurethanes, nitrile rubbers, acrylic elastomers, copolyester elastomers, thermoplastic polyether ester elastomers, thermoplastic amide ether elastomers, chlorinated rubbers, ionomers, thermoplastic vulcanizates, and combinations thereof. The flame-retardant plastic composition additionally comprises a filler and / or a compatibilizer. A method for preparing the flame retardant plastic composition and articles made from the composition are also disclosed.

The invention discloses a battery diaphragm with a flame-retardant composite interface layer and a preparation method of the battery diaphragm, and belongs to the technical field of electrical materials. Mixing the ground brominated flame retardant, flame retardant additive, binder and organic solvent to obtain diaphragm slurry; and coating or rolling the diaphragm slurry to form a film to obtain the corresponding battery diaphragm, or coating the slurry on a commercial base film to obtain the battery diaphragm. The battery diaphragm is coated with the flame retardant, so that the thermal safety performance of the battery is remarkably improved, and the fire risk is effectively reduced. The heat dissipation efficiency of the battery is improved; and meanwhile, the fire hazard during thermal runaway is reduced due to the quick self-extinguishing characteristic. Meanwhile, good electrochemical stability is kept, the specific discharge capacity and reversibility of the battery are improved, and the performance and use safety of the battery are enhanced.

The invention belongs to the technical field of brominated flame retardant synthesis, and particularly provides a decabromodiphenyl ethane bromine distillation process chlorination bromine removal process, which comprises the following steps: S1, adding bromine into a reaction kettle, adding a catalyst, and mixing; cooling and dropwise adding molten diphenylethane; then heating, carrying out a heat preservation reaction, and cooling to obtain a brominated crude product; s2, S201, adding the brominated crude product obtained in S1 into a bromine steaming kettle, and heating; s202, chlorine is introduced, and the total amount of bromine and chlorine is detected; carrying out segmented control on the introduced chlorine according to the total amount of bromine and chlorine; s203, when the total amount of bromine and chlorine is reduced to a threshold value, stopping introducing chlorine, standing, cooling, and introducing nitrogen; s3, filtering the feed liquid in the bromine steaming kettle, washing and purifying for three times, and finally, centrifugally dewatering to obtain a faint yellow solid; and S4, adding the faint yellow solid into a high-temperature jet mill, performing high-temperature aging to obtain white powder, and then performing jet milling on the white powder to obtain a finished product. Physical distillation is replaced by chemical replacement, so that bromine is highly separated.

The invention provides a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and the flame-retardant ABS composition comprises the following components in parts by weight: 66-80 parts of ABS resin; 13-21 parts of a brominated flame retardant; 4-11 parts of an aluminum phosphate flame retardant; and 0.5 to 4 parts of oxide. According to the flame-retardant ABS composition disclosed by the invention, the flame-retardant ABS composition can achieve an excellent flame-retardant effect under the condition that the addition amount of the flame retardant is relatively low, and the light transmittance is relatively high.

The invention relates to the technical field of powder coatings, and provides an insulating powder coating and a preparation method thereof. The insulating powder coating comprises the following raw materials in parts by weight: 82-96 parts of epoxy resin, 5-8 parts of phenolic resin, 12-18 parts of silica powder, 10-15 parts of modified nano aluminum oxide, 3-9 parts of a flame retardant and 0.5-1 part of a flatting agent. Wherein the modified nano aluminum oxide and the silica powder can remarkably improve the breakdown voltage, the arc resistance and the insulativity of the coating; the flame retardant can improve the flame retardance and chemical resistance of the coating, is a halogen-free flame-retardant system, avoids the toxicity problem of the traditional brominated flame retardant, and improves the environmental protection property; in conclusion, the flame-retardant insulating powder coating overcomes the defects of the traditional insulating powder coating in flame retardance, chemical resistance and environmental protection, and has important application value in high-end power electronic equipment.

This invention discloses a flame-retardant PBT composite material, comprising the following components by weight: 40-73 parts PBT; 0.8-3.2 parts alkali lignin; 13-18 parts brominated flame retardant; 3-5 parts antimony trioxide; and 0.5-1 parts pentaerythritol. The weight-average molecular weight of the alkali lignin is 3000-10000. By selecting alkali lignin and pentaerythritol with specific molecular weights and using antimony trioxide as a laser color developer, this invention can effectively improve the laser marking defects of PBT composite materials modified with brominated flame retardants and has the advantage of thin-walled flame retardancy.

Provided is a polyamide resin composition containing (A) a polyamide having a melting point of 280 DEG C or higher, (B) a brominated flame retardant, (C) an inorganic filler, and (D) a colorant, the polyamide (A) containing dicarboxylic acid units and diamine units, 50-100 mol% of the diamine units being aliphatic diamine units having 4-18 carbon atoms, the colorant (D) is at least one of an organic colorant and an inorganic colorant, and R1 represented by a specific formula (1) is less than 50.

The present invention provides a non-aqueous electrolyte solution for a lithium battery, comprising one or more brominated flame retardants. The non-aqueous electrolyte solution comprises a) a liquid electrolyte medium; b) a lithium-containing salt; and c) at least one brominated flame retardant. The brominated flame retardant is present in the electrolyte solution in a flame-retarding amount.

This invention belongs to the field of polymer materials technology, and specifically relates to a high glow wire and high limiting oxygen index flame-retardant ABS material, its preparation method, and its application. The flame-retardant ABS material comprises the following raw materials in the indicated mass percentages: 55%–80% ABS resin, 5%–16% brominated flame retardant, 2%–6% synergistic flame retardant, 2%–10% magnesium salt whiskers, 4%–10% water-washed montmorillonite, and processing aids; the synergistic flame retardant includes zinc stannate. The flame-retardant ABS material of this invention exhibits high glow wire and high limiting oxygen index.

The invention relates to a flame retardant composition and a macromolecular brominated flame retardant composition used in wires and / or cables. The brominated flame retardant contains aromatic bound bromine, and in several embodiments is considered as a brominated styrenic polymer. The brominated flame retardant has a weight average molecular weight (Mw) of about 650 to about 75,000 and a bromine content of about 60 wt% or more. The invention also relates to a process for forming a flame retardant composition using different curing methods, including but not limited to electron beam curing and peroxide curing.

The invention discloses an antimony-free bromine flame-retardant nylon composite material and a preparation method thereof. The antimony-free bromine flame-retardant nylon composite material is prepared from 48 to 60 parts of PA (Polyamide) resin, 10 to 30 parts of chopped glass fiber, 10 to 20 parts of brominated polystyrene (BPS), 5 to 10 parts of a modified organic aluminum phosphonate flame retardant, 1 to 4 parts of zinc tungstate, 0.2 to 0.7 part of an antioxidant and 0.3 to 0.8 part of a lubricant. Wherein the modified organic aluminum phosphonate flame retardant is an organic aluminum phosphonate flame retardant which is subjected to hyperbranched polymerization coating modification by adopting phytic acid and polyhydric alcohol amine. The modified organic phosphine flame retardant / zinc tungstate and BPS are in efficient synergism, a Sb2O3 flame-retardant synergist is completely replaced, the excellent flame retardant performance, CTI performance and GWIT performance are achieved, generation of antimony tribromide during processing and combustion is avoided, and the composite material can achieve the flame-retardant effect the same as that of a bromine-antimony flame-retardant system and has good comprehensive performance.

The application provides a method for simultaneously detecting the content of 16 new types of brominated flame retardants in human serum, and the specific steps are as follows: S1: preparing a mixed standard solution; S2: preparing an internal standard solution; S3: drawing a standard working curve; S4: sample pretreatment: taking dichloromethane in a glass test tube, adding the internal standard solution, and blowing with nitrogen in a 40 DEG C water bath until nearly dry, then adding fetal bovine serum and pure water, and vortexing to mix; the mixed solution of dichloromethane and acetonitrile is used to form an emulsion with the sample, and after sufficient extraction of the emulsion by using a dispersing agent and an extracting agent, centrifugation is carried out at room temperature; finally, the organic precipitate phase is taken and filtered through a filter membrane to be transferred to a sample injection vial with a glass lining tube, and is left for machine detection; S5: detection and result analysis: a gas chromatograph-tandem triple quadrupole mass spectrometer is used for detecting and analyzing the content of the new types of brominated flame retardants. The method has the advantages of simple pretreatment, high sensitivity and strong practicability, and can be used for routine biological monitoring of NBFRs in the human population.

The present invention discloses a flame-retardant ABS composite material comprising the following components, by weight: 67-80 parts ABS resin, 3-6 parts low-molecular-weight SAN resin, 13-16 parts brominated flame retardant, 3-5 parts antimony trioxide, 1-2 parts ester additive, and 1-2 parts PLA resin. The present invention utilizes the ester additive to reduce friction between ABS molecules, improve lubricity between ABS molecules, and enhance internal lubricity. The synergistic effect of the three enhances the weld mark tensile strength of the flame-retardant ABS while maintaining excellent mechanical toughness and overall performance.

Provided are a resin composition capable of enhancing flame retardancy of various thermoplastic resins and imparting excellent heat resistance thereto, and a foamable resin composition suitable for obtaining an extruded foam molded body having high flame retardancy and excellent heat resistance.　A resin composition according to the present invention contains a thermoplastic resin, a bromine-based flame retardant, and an organic phosphonic acid. A foamable resin composition according to the present invention contains the resin composition and a foaming agent. The foamable resin composition according to the present invention makes it possible to obtain an extruded foam molded body having excellent flame retardancy.

The invention relates to the technical field of high-temperature-resistant polyester composite materials, in particular to a high-temperature-resistant polyester composite material and a preparation method thereof.The high-temperature-resistant polyester composite material is prepared from polyester resin, a brominated flame retardant, a synergistic flame retardant, an antioxidant A, a lubricant A, irradiation master batches and glass fibers. The irradiation master batch promotes the cross-linking reaction of the polyester resin to form a three-dimensional network structure; the glass fiber is used as a reinforcing material and has a synergistic effect with the irradiation master batch, so that the mechanical strength, the heat resistance and the dimensional stability of the polyester composite material are remarkably improved, the sliding of a polyester molecular chain is limited, the thermal deformation is reduced, and the thermal deformation temperature of the polyester composite material is jointly improved. After being subjected to special irradiation treatment, the material has higher heat deformation temperature and lower melt flowability, can bear an SMT process without deformation, bubbling or collapse, has remarkable long-term heat resistance, and can bear continuous high temperature without softening deformation.

The invention relates to the field of flame-retardant materials, in particular to an environment-friendly brominated flame-retardant ASA material and a preparation method thereof. The material comprises the following components in parts by weight: 100 parts of an ASA resin matrix, 8-12 parts of a brominated flame retardant, 2-8 parts of a synergistic flame retardant, 1-5 parts of a reinforcing agent, 0.2-0.6 part of an antioxidant, 0.5-1 part of an ultraviolet light absorber, 0.2-0.5 part of a light stabilizer and 1-2 parts of a lubricant. Compared with a traditional brominated flame retardant system, the synergistic flame retardant PODA-TA prepared by the preparation method disclosed by the invention can also realize an excellent flame retardant effect without adding high bromine. The synergistic flame retardant PODA-TA can replace traditional antimony trioxide to serve as a more efficient synergistic agent, the bromine consumption is reduced by 40% or above, and meanwhile the precipitation resistance and weather resistance can be greatly improved.

The brominated flame retardant powder material screening, dust preventing and impurity removing device comprises a screening box, a box cover is arranged at the top end of the screening box, a feeding hopper is arranged at the top end of the box cover in a penetrating mode, a spring is fixedly connected to the bottom end of the screening box, a supporting frame is fixedly connected to the bottom end of the spring, and a vibration motor is fixedly connected to the bottom end of the screening box; according to the brominated flame retardant screening device, brominated flame retardant powder materials in the screening process can be subjected to effective magnetic attraction operation through the multiple sets of strong magnetic plates, the strong magnetic plates can effectively adsorb and remove rust impurities in the materials, the purity and quality of final products are ensured, the rust impurities are synchronously removed in the screening process, and the screening efficiency is improved. And the surface of the screening plate can be continuously cleaned in the screening process through a scraper, screening holes are kept unblocked, and therefore the screening efficiency is improved, and in the moving process of the scraper, through cooperation of a baffle, a sliding groove can be shielded, dust is prevented from flying outwards, and the working environment is kept clean.

The utility model belongs to the technical field of waste gas treatment, and discloses a waste gas treatment device in a brominated flame retardant production process, which comprises a cooling box, the bottom wall of an inner cavity of the cooling box is an inclined plane, a plurality of ventilation cavities are arranged on the inclined plane, a plurality of branch pipes are arranged in the plurality of ventilation cavities, and the branch pipes are communicated with the ventilation cavities. A dispersion net is installed in an inner cavity of the cooling box, an exhaust channel is installed at the top of the cooling box, and the exhaust channel communicates with the cooling box; a connecting pipe is installed at the end, away from the ventilation cavity, of the branch pipe and communicates with the branch pipe, an air inlet pipe is installed at one end of the connecting pipe and communicates with the connecting pipe, and a first electromagnetic valve is installed on the air inlet pipe. According to the waste gas purification device, waste gas can be conveniently cooled and purified, and volatile organic compounds in the waste gas can be conveniently removed.

The present invention provides a polyamide resin composition containing (A) a polyamide having a melting point of 280 DEG C or higher, (B) a brominated flame retardant, (C) an inorganic filler, (D) an aromatic vinyl copolymer, and (E) a colorant, the polyamide (A) containing a diamine unit, 50-100 mol% of the diamine unit being an aliphatic diamine unit having 4-18 carbon atoms, when particles of the brominated flame retardant (B) in a specific region in a thickness-direction cross-section of a test piece containing the polyamide resin composition are observed, Rs1 represented by formula (bs / as) As is less than 0.2 [mu] m2. [In the formula, bs / as is the number average value of the ratio of the vertical Feret diameter to the minimum Feret diameter among the Feret diameters of the particles of the brominated flame retardant (B) observed in the region, and As is the number average value ([mu] m2) of the cross-sectional area of the particles of the brominated flame retardant (B) observed in the region. ]

The present invention aims to achieve a high level of balanced flame retardancy, heat resistance, and resilience in a cable. A method for solving the problem of the present invention relates to a cable comprising a conductor, an insulating layer covering the conductor, and a sheath covering the insulating layer, wherein the sheath is formed from a flame-retardant resin composition comprising a base polymer (A), a plasticizer (B), a stabilizer (C), and a flame retardant (D), wherein the base polymer (A) comprises chlorinated polyethylene (a1) and at least one polyurethane thermoplastic elastomer (a2) selected from the group consisting of an adipate ester, a lactone, and a carbonate ester, the stabilizer (C) comprises hydrotalcite (c1) and a metal soap (c2), and the flame retardant (D) comprises at least one of a metal hydroxide (d1), a brominated flame retardant (d2), amorphous silica (d3), and antimony trioxide (d4).

The invention discloses a nitrogen-phosphorus-bromine synergistic flame-retardant and anti-ultraviolet aging polypropylene composite material and a preparation method and application thereof, and particularly relates to the technical field of macromolecules, the nitrogen-phosphorus-bromine synergistic flame-retardant and anti-ultraviolet aging polypropylene composite material comprises the following components by weight: 70-80 parts of polypropylene; 10 to 20 parts of brominated flame retardant; 5-10 parts of a phosphorus-based flame retardant containing a hypophosphorous acid or phosphorous acid structure; 1-5 parts of a nitrogen flame retardant containing a six-membered hindered amine heterocyclic structure; the weight ratio of the phosphorus-based flame retardant containing the hypophosphorous acid or phosphorous acid structure to the nitrogen-based flame retardant containing the six-membered hindered amine heterocyclic ring structure is 1: 1-10: 1, efficient flame retardance, excellent weather resistance and good processability can still be achieved under the condition that antimony trioxide is not added completely, the dependence of a traditional bromine-antimony system on an antimony synergist is broken through, and the flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free The common problems of processing thermal decomposition and performance degradation in a traditional halogen-antimony system are effectively avoided.

The present invention provides a polyamide resin composition containing (A) a polyamide having a melting point of 280 DEG C or higher, (B) a brominated flame retardant, (C) an inorganic filler, (D) an aromatic vinyl copolymer, and (E) a colorant, the polyamide (A) containing a diamine unit, 50-100 mol% of the diamine unit being an aliphatic diamine unit having 4-18 carbon atoms, when particles of the brominated flame retardant (B) in a specific region in a thickness-direction cross-section of a test piece containing the polyamide resin composition are observed, Rc1 represented by formula (bc / ac) Ac is less than 0.15 [mu] m2. [In the formula, bc / ac is the number average value of the ratio of the vertical Feret diameter to the minimum Feret diameter among the Feret diameters of the particles of the brominated flame retardant (B) observed in the region, and Ac is the number average value ([mu] m2) of the cross-sectional area of the particles of the brominated flame retardant (B) observed in the region. ]

The application discloses a method for degrading brominated organic pollutants in water by using UV / H2O2, and first establishes a high-level oxidation treatment method for brominated pollutants in water by combining UV and H2O2, determines the initial concentration of the brominated pollutants and the adding proportion of the oxidant H2O2 by using absorbance, Lambert-Beer law and the principle of absorbance additivity, and verifies the rationality of the concentration settings of the brominated pollutants and the oxidant in the kinetics evaluation, and further establishes a detection method for bromide ions, which, compared with the traditional ion chromatography method, does not need an additional pretreatment process, avoids the matrix interference of coexisting organic matters, and greatly saves the experimental and instrument use costs; for the identification of degradation products, the method established by the application accurately detects the evolution trend of more than twenty structural molecules in the examples along with the treatment process, and the method can be widely applied to the wastewater treatment of brominated flame retardants, brominated phenols and other bromine-containing organic matters in the environment.

Provided are: a rubber-modified styrene resin composition which does not require the use of a large amount of a high-price bromine-based flame retardant and / or phosphorus-based flame retardant, has excellent cost performance, and can exhibit sufficient flame retardancy and mechanical strength; and a molded article thereof. A rubber-modified styrene-based resin composition containing (A) a rubber-modified styrene-based copolymer, (B) a polyvinyl chloride-based resin, (C) an epoxy group-containing (meth) acrylate-based polymer, (D) a brominated flame retardant, and (E) a flame-retardant auxiliary agent, the content of the (B) polyvinyl chloride-based resin being 20-40 parts by weight per 100 parts by weight of the (A) rubber-modified styrene-based copolymer, and the content of the (C) epoxy group-containing (meth) acrylate-based polymer being 20-40 parts by weight per 100 parts by weight of the (A) rubber-modified styrene-based copolymer. The content of the brominated flame retardant (D) is 5-20 parts by weight, and the amount of an epoxy group-containing monomer unit contained in the epoxy group-containing (meth) acrylate polymer (C) is 3-10 parts by weight with respect to 100 parts by weight of the polyvinyl chloride resin (B).

The combination of one or more phosphorus-containing flame retardant compounds as described herein with at least one brominated flame retardant compound provides an effective flame retardant additive for thermoplastic polymers without the need for the use of antimony trioxide. Thus, flame-retardant thermoplastic compositions containing at least one thermoplastic polymer, at least one brominated flame retardant, and at least one phosphorus-containing flame retardant as described herein are provided. These compositions are useful in a wide range of applications, such as for electrical and electronic applications.

The invention relates to the technical field of polycarbonate, in particular to a tracking-resistant polycarbonate composition and application thereof. The flame-retardant polycarbonate composite material comprises the following components in percentage by weight: 1-20% of copolyester, 2-10% of a brominated flame retardant, 0.05-2% of a sulfonate flame retardant, 0.1-5% of titanium dioxide, 2-10% of an impact modifier, 0.1-2% of an auxiliary agent and the balance of polycarbonate. The brominated flame retardant, the sulfonate flame retardant and the titanium dioxide are used at the same time, the flame retardant property of the composition can be improved, UL94 1.5 mm reaches the V-0 level, and meanwhile the tracking resistance is improved; the carbon black is added into the components, the addition amount of the carbon black in the components is greater than 0.05 wt%, and the weight ratio of the titanium dioxide to the carbon black is 1: (0.05-0.25), so that the performance stability of the composition can be further optimized, and the composition can meet the preparation of electrical components.

The present invention provides a water-based dispersion-type flame retardant that exhibits flame retardant effects equivalent to or better than those of both DBDPE and antimony trioxide, even when using small amounts or none of both compounds. [Solution] The present invention relates to an aqueous dispersion type flame retardant comprising a flame retardant component dispersed in an aqueous solvent, characterized in that (1) the flame retardant component comprises (1a) a metal salt of dialkylphosphinic acid and (1b) a brominated flame retardant component having a melting point of 150°C or less (excluding the metal salt), and (2) the ratio of the metal salt to the brominated flame retardant component is such that, with the total of both being 100% by weight, the ratio of metal salt:brominated flame retardant component = 90% by weight:10% by weight to 40% by weight:60% by weight.