341 results about "Hexabromocyclododecane" patented technology

The invention discloses a flame-proof polyolefin resin component and preparing method in the resin flame resistant modifying domain, which comprises the following parts: a. 9-20% bromine fire retardant with decabran diphenyl ethane or octabromobium ether and heat-stability hexabromide cyclododecane with weight rate at 2: 1-1: 2, b. 3-8% synergic fire retardant with antimony trioxide, c. 3-12% melt resistant melt drip agent with one or more of organic montmorillonite, kaolin and clay.

The invention provides burnthrough-resistant water-based fire retardant glue for spinning. The burnthrough-resistant water-based fire retardant glue is prepared from the following components in parts by weight: 100 parts of a water-based adhesive, 10 to 100 parts of a halogen flame retardant, 3 to 100 parts of a synergistic flame retardant, 0 to 30 parts of an auxiliary and 0 to 100 parts of water, wherein the water-based adhesive is prepared from ethylene-vinyl acetate copolymer emulsion and an auxiliary adhesive; the solid content of the ethylene-vinyl acetate copolymer emulsion is 20 to 56 percent; the weight ratio of the water-based adhesive to the halogen flame retardant is (1 to 8) to 1; the halogen flame retardant is prepared from one or more of decabromodiphenyl ether, decabromodiphenyl ethane, tri(2,3-dibromo propyl) isocyanuric acid ester, tri(tribromophenyl) cyanurate, ethylene bis (tetrabromophthalimide), tetrabromo bisphenol A, hexabromocyclododecane, octo-bromo-ether, chlorine ester resin, ploy (vinylidene chloride) resin, brominated styrene, brominated epoxy resin, polyvinyl chloride, chlorinated paraffin and methyl chloride.

The invention provides a fire-retardant polystyrene combination and its preparation method. involving flame-retardant resin modification field. The said combination contains (weight parts) polystyrene 100, halogen flame-retardant 8~25, and synergistic flame retardant 2~6. The halogen flame retardant is brominated polystyrene or a mixture of decabrominated dipheny ethane and hexabromocyclododecane with thermal decomposition temperature greater than or equal to 200degreeC, wherein the ratio of decabrominated dipheny ethane to hexabromocyclododecane is at 2 : 1 ~ 1 : 2. The synergistic flame retardant is antimony trioxide. The combination is prepared by mixing and melting the above materials with good fire-retardant properties, flame retardant level up to FV-0 level (GB/T4609-93) and the oxygen index up to 28, which can be applied to various adverse circumstances.

The invention discloses a novel anti-flaming anti-static electricity polypropylene dedicated material and a preparation method thereof; the dedicated material is prepared by the following raw materials by mass percentage: 40-70 percent of polypropylene resin or polypropylene/ nylon alloy or polypropylene/nylon/PP-g-MAH, 20-40 percent of formulated fire retardant, 4-10 percent of electric-conduction fillers, and 6-15 percent of inorganic fillers; the formulated fire retardant is formulated by several kinds of compound A, compound B, ammonium polyphosphate, tetramethylolmethane, magnesium hydroxide, aluminium hydroxide and tripolycyanamide, the compound A is bromocyclohexane or hexabromocyclododecane, the compound B is antimony trioxide or antimony pentoxide; the inorganic filler adopts montmorillonoid, hydrotalcite, talcum powder or attapulgite clay. The novel anti-flaming anti-static electricity polypropylene dedicated material prepared by the invention has good flame retardant property and good anti-static electricity performance, the mechanical intensity of the material is further improved after the alloy is prepared by adding the nylon, the used raw material has low cost and is environment-protection, and no melt body drops in the anti-flaming process.

The invention relates to a flame retardant expanded polystyrene particle and a preparation method thereof. The flame retardant expanded polystyrene particle of the invention uses styrene, desalted water, calcium phosphate, benzoyl peroxide, dicumyl peroxide, hexabromocyclododecane, structural modifier, infrared reflection agent, foaming agent and the like as raw materials. The preparation method comprises the following steps: mixing the raw materials, heating to react, and performing filtration and other steps. The flame retardant expanded polystyrene particle has higher burning class and good fireproof performance. The flame retardant expanded polystyrene particle is suitable for the external wall thermal insulations of all kinds of buildings.

The invention discloses antiflaming plastic for a cable and a preparation method of the plastic. The preparation method comprises the following steps: mixing polyvinyl chloride, polycarbonate, hexabromocyclododecane, zinc borate, chromic oxide, MBS resin, hydroxymethyl starch, organic montmorillonite, nano titanium dioxide, filler, a lubricant and a plasticizer, then carrying out extrusion molding to prepare the antiflaming plastic for the cable, wherein the antiflaming plastic comprises the components in parts by weight: 100 parts of polyvinyl chloride, 30-45 parts of polycarbonate, 30-45 parts of hexabromocyclododecane, 2.5-4 parts of zinc borate, 0.5-1.5 parts of chromic oxide, 7-12 parts of MBS resin, 3-5 parts of hydroxymethyl starch, 9-15 parts of organic montmorillonite, 0.3-0.8 part of nano titanium dioxide, 25-35 parts of filler, 1-4 parts of lubricant and 13-17 parts of plasticizer. The plastic has excellent flame retardance, insulation performance and mechanical property.

The invention relates to utilization of a silica matrix as a sample pretreatment material, wherein a) PCNs (polychlorinated naphthalenes congeners), HBCDs (hexabromocyclododecanes) and TBBPA (tetrabromobisphenol A) in complex samples are extracted by a solvent extraction method and an extract containing target analytes is obtained; b) the silica matrix is selected as a chromatographic column filler; the filer is activated by using normal hexane at first and then the extract is loaded; c) the polychlorinated naphthalenes congeners, hexabromocyclododecanes and tetrabromobisphenol A are eluted orderly by using organic solvents (normal hexane, dichloromethane and the like) composed of different solvents, and then three eluates of different fractions are obtained; d) after solvents are volatilized from the eluates, the purified target analytes are obtained. According to the invention, selective separation of the polychlorinated naphthalenes congeners, hexabromocyclododecanes and tetrabromobisphenol A in the complex samples is realized by virtue of a simple chromatographic column; the method has the advantages of simplicity in operation, good selectivity and high efficiency.

The invention discloses a high flame retardant grade expandable polystyrene product and a production method. The product is produced by components in part by weight as follows: 100 parts of styrene, 110-130 parts of process water, 0.3-0.5 part of BPO (Benzoyl Peroxide), 0.04-0.08 part of CP-02, 0.05-0.1 part of active calcium phosphate, 7-9 parts of pentane, 0.001-0.002 part of sodium dodecyl benzene sulfonate, 0.7-0.9 part of anhydrous sodium sulfate, 0.6-0.9 part of hexabromocyclododecane, 0.3-0.5 part of dicumyl peroxide, and 0.1-0.2 part of polyethylene wax. The product is produced by steps of feeding, low temperature reaction, high temperature reaction and cooling and discharging. Compared with the prior art, the high flame retardant grade expandable polystyrene product is high in foaming ratio and good in particle elasticity, the foam expansion reaches more than 120 times, and in particular, the flame retardant effect is good, and the oxygen index reaches above 32.

The invention provides a polyvinyl chloride A-grade fire-retardant interior decoration material. The polyvinyl chloride A-grade fire-retardant interior decoration material is prepared from the following raw materials in parts by weight: 60-80 parts of polyvinyl chloride, 3-5 parts of melamine, 15-25 parts of wood powder, 1.1-2.2 parts of molybdenum trioxide, 8-11 parts of tetrabromo-bisphenol-A, 0.5-1.0 part of dicyclopentadienyl iron, 13-27 parts of hexabromocyclododecane, 2-5 parts of a plasticizer, 10-22 parts of zinc borate, 2-5 parts of a cosolvent, 20-40 parts of hydroxide, 0.6-1.8 parts of colour masterbatch, 10-15 parts of flame-retardant polyether, 30-60 parts of calcium carbonate, 5-10 parts of sodium carbonate, 5-9 parts of ammonium polyphosphate, 5-9 parts of brominated epoxy resin and 10-15 parts of expanded graphite. The polyvinyl chloride A-grade fire-retardant interior decoration material is environment-friendly and energy-saving, does not absorb water and is non-combustible and wear-resistant, the process is simple, the dimensional stability is good, and anti-compression creep property is good; meanwhile, the A-grade fire prevention standard in the national standard, Code for Fire Prevention in Design of Interior Decoration of Buildings, of the People's Republic of China GB 50222-95 can be met.

This invention discloses a method for preparing environmentally friendly flame-retardant expandable polystyrene granules. The expandable polystyrene granules can be used in colored steel construction plate, base pavement material for highway and heat-insulating material for outer wall. The method comprises: mixing styrene, desalted water, sodium sulfonate, calcium phosphate, benzoyl peroxide, dicumyl peroxide, hexabromocyclododecane, and pentane and structure regulator, stirring, reacting and filtering. The expandable polystyrene granules can reduce air pollution, reduce energy consumption, and increase production efficiency.

The invention relates to a method for determining content of hexabromocyclododecane in electronic material by gas chromatography-mass spectrometry. The method comprises the following steps of: adding n-hexane and acetone with a ratio of 1:(0.5-2) in a sample to be detected, refluxing at 60 to 90 DEG C for 2 to 16 h to extract hexabromocyclododecane, filtering, and purifying to obtain the sample; weighting hexabromocyclododecane standard substance, dissolving with methanol, adding distilled water to fixed volume to obtain a stock solution, and further diluting with methanol to obtain standard solutions with concentration gradient; detecting the sample processed solution by gas chromatography-mass spectrometry; and calculating the result. The inventive method for determining content of hexabromocyclododecane in electronic material has high speed, high efficiency and less error rate not larger than 10%. Accordingly, the invention provides a reliable and easily-implemented method for determining hexabromocyclododecane in electronic material and can meet the requirement of study and production.

The present invention discloses a hexabromocyclododecane production process capable of effectively improving product quality. Said process includes the following procedures: bromization procedure, filter and centrifugal drying procedure, washing procedure, boiling procedure, drying procedure, powder-sieving procedure and solvent recovery procedure. It is characterized by that it adopts chloroform and isobutanol as medium, so that it can raise thermal stability of product. Said product is a good fire retarding agent, therefore it has extensive application.

The invention discloses filter paper doped with viscose-based activated carbon fiber for an automobile filter and a preparation method of the filter paper. The filter paper comprises, by weight, 70-80 parts of wood pulp, 20-30 parts of bamboo pulp, 10-20 parts of mineral cotton fiber, 2-5 parts of the viscose-based activated carbon fiber, 1-3 parts of nano titanium dioxide, 2-4 parts of modified diatomite, 1-2 parts of activated aluminum oxide, 0.5-0.8 part of hexabromocyclododecane, 2-3 parts of water-soluble organic silicon resin emulsion, 1-2 parts of water-soluble acrylic resin emulsion, 0.5-1 part of tributyl citrate, 0.5-1 part of vinyl-tri (beta- methoxy ethyoxyl) silane, 0.4-0.8 part of sodium lauryl sulfate, and 2-5 parts of wet strength agent PAE (polyamide epichiorobydrin resin). The filter paper doped with the viscose-based activated carbon fiber for the automobile filter is good in water permeability, large in filtering area, small in maximum hole diameter, high in filtering precision, strong in bursting strength, high in temperature resistance and tensile strength and the like, has stable performance index under normal-temperature and high-temperature working conditions and is provided with good temperature resistance and filtering effects, filtering efficiency of the filter paper can reach 99.99%.

The invention relates to a halogen resin composition and an application thereof. The halogen resin composition is prepared from the following raw materials in parts by weight: 20-50 parts of dicyclopentadiene epoxy resin, 10-40 parts of styrene-maleic anhydride copolymer, 10-30 parts of benzoxazine resin, 20-40 parts of halogenous fire retardant, and 5-20 parts of multi-functional group epoxy resin, wherein the halogenous fire retardant is at least one of the decabrominated dipheny ethane, tri(tribromophenyl) triazine, brominated polyolefin, brominated polystyrene, ethyl-di(tetrabromobenzene o-dicarboximide), decabromodiphenyl ether, hexabromocyclododecane, eight bromo ether, tetrachlorophthalic anhydride, Hexachlorocyclopentadiene and perchlorinated cyclopentyl decane. A metal foil substrate made of the halogen resin composition has the advantages of low dielectric constant and dielectric loss, excellent heat resistance, good machinability and low swelling coefficient and can be well applied to a composite board.

This invention provides a method for preparing brominated composite flame retardant and its application. The brominated composite flame retardant comprises: brominated flame retardant 100 parts, synergistic flame retardant 30-45 parts, and anti-melting drop 30-60 parts. The brominated flame retardant is a mixture of decabromodiphenyl ethane or octabromo ether and heat-stable hexabromocyclododecane at a weight ratio of (2:1)-(1:2). The synergistic flame retardant is antimony trioxide. The anti-melting drop is one or more of organic montmorillonite, kaolin and clay. The method comprises: adequately mixing the above components according to the formula. The brominated composite flame retardant has a flame retardant grade up to V-0 without melting drop when used in flame retardant modification of polyolefin plastics. Besides, the brominated composite flame retardant has good mechanical properties, and can be used as packaging material for military products and electronic products.

The invention relates to flame retarded extruded polystyrene foams with a very low halogen content in the final product, i.e. containing a very low content of hexabromocyclododecane or preferably hexabromocyclododecane free, and a process for their preparation. The invention also relates to their use in construction, as building thermal insulating materials, or in transportation.

The invention relates to the field of materials, in particular to a polyvinyl chloride grade-A fireproof material. The polyvinyl chloride grade-A fireproof material is prepared from the following constituents in parts by weight: 70-85 parts of PVC, 15-20 parts of expansible graphite, 10-15 parts of borax, 35-50 parts of hexabromocyclododecane, 15-25 parts of zinc borate, 13-18 parts of magnesium hydroxide, 13-20 parts of fire-retardant polyether, 8-12 parts of a carbon forming agent, 0.01-0.10 part of a stabilizer, 4-10 parts of a plasticizer, 3-8 parts of antimonous oxide, 3-8 parts of a phase solvent, 0.05-0.30 part of a coupling agent, and 13-18 parts of aluminum hydroxide. The polyvinyl chloride fireproof material provided by the invention can be up to grade A, has dampproof and mildewproof functions when being processed and molded to form a plate, a sheet, a tube stock, a sectional material or a foam material, meanwhile has thermal insulation and sound insulation properties, is free of oil paint, non-combustible, not afraid of burning, convenient to process, environment-friendly, and non-pollution, and further has various processing characteristics of the wood.

The invention discloses a methyl octabromo-ether flame-resistant polystyrene composite material, and a preparation method thereof. The methyl octabromo-ether flame-resistant polystyrene composite material comprises, by weight, 70 to 90 parts of polystyrene, 1 to 10 parts of methyl octabromo ether, 0.2 to 5 parts of a bromine-series flame retardant synergist, 1 to 10 parts of phosphorus-nitrogen-series flame retardant, 1 to 10 parts of a lubricating dispersant, and 1 to 20 parts of a filler. The invention also discloses the preparation method of the methyl octabromo-ether flame-resistant polystyrene composite material. The preparation method comprises following steps: the components are uniformly stirred, and are introduced into an extruder for extrusion, wherein the temperature of the extruder is controlled to be 170 to 210 DEG C. According to the preparation method, methyl octabromo ether is adopted to replace the commonly used polystyrene flame retardant hexabromocyclododecane, and at the same time, the phosphorus-nitrogen-series flame retardant is added for synergistic effect, so that the prepared polystyrene composite material has excellent resistance and excellent mechanical properties at the same time, the tensile strength is 31.2-34.6MPa, the bending strength is 42.3 -47.0MPa, and limit oxygen index is 30-39%.

A method for detecting the content of hexabromocyclododecane in electrical and electronic rubber parts, comprising the following steps: (1) sample preparation; (2) extraction of hexabromocyclododecane: adding heavy metal powder to the pulverized sample, mixing Then put it into the accelerated solvent extraction pool and use the organic solvent to carry out accelerated solvent extraction on the sample to obtain the extract; (3) Purification of the extract: transfer the extract to the solid phase extraction column, and then use the mixed solvent for elution, collect the washed Deliquoring and concentrating to obtain purified extract; (4) Determination of hexabromocyclododecane: measure the purified extract and hexabromocyclododecane mixed standard solution with gas chromatography-mass spectrometer, After data processing and quantitative analysis, the content of trace HBCD in electronic and electrical rubber components was obtained. The method can effectively remove interfering impurities in the rubber, and the hexabromocyclododecane can be fully extracted, the purification degree is high, the detection sensitivity is high, and the sample testing cost is low.

The invention provides a polystyrene flame-retardant resin which is prepared from the following components in parts by mass: 70-80 parts of polystyrene, 8-15 parts of char forming agent pentaerythritol, 10-15 parts of borax, 0.01-0.5 part of stabilizing agent, 20-30 parts of hexabromocyclododecane, 10.6 parts of French chalk, 18-25 parts of zinc borate, 4-8 parts of cosolvent, 20-40 parts of hydroxide, 0.6-1.8 parts of color master batch, 10-20 parts of flame-retardant polyether, 4-8 parts of antimony trioxide, 15-20 parts of expandable graphite, 0.1-0.5 part of coupling agent, 8-15 parts of wood meal, 8-12 parts of sucrose and 5-10 parts of rutile titanium white. The test result indicates that the polystyrene flame-retardant resin satisfies Grade A in Classification for Burning Behavior of Building Materials and Products GB 8624-2006 and Grade A in Chinese Code for Fire Prevention in Design of Interior Decoration of Building GB5022-95.

The invention discloses a high-performance composite material for shells of notebook computers. The high-performance composite material comprises PBT (polybutylene terephthalate) resin, PET (polyethylene terephthalate) resin, polycarbonate, zinc acrylate resin, benzene-free epoxy resin, maleic-anhydride-grafted ethylene propylene diene monomer rubber, chloropropyl-based styrene, maleic-anhydride-grafted polypropylene, hexabromocyclododecane, 3-ethyl-2-butene-1-alcohol, aluminum oxide, titanium oxide, paraffin, sodium tartrate, sodium polyphosphate, sodium carboxymethyl celluloses, aromatic polyamide fibers, polybutylene terephthalate fibers, basalt fibers, carbon black, silicon oxide, coupling agents, chain extenders, compatilizers, antioxidants, stabilizing agents, bridging agents, regulators, reinforcing agents, flocculating agents, toughening agents, plasticizers, thickening agents, stabilizers, flame retardants, smoke inhibitors, ultraviolet absorbents and terminators. The high-performance composite material has the advantages of excellent comprehensive performance, low density and high specific strength.

The invention discloses an impact-resistant and high-strength plastic plate. The impact-resistant and high-strength plastic plate comprises raw materials in parts by weight as follows: 0.2-0.4 parts of hexabromocyclododecane, 4-6 parts of polyisoprene, 100-140 parts of polyvinyl chloride, 0.6-1 part of lauroyl diethanolamide, 0.7-1 part of p-toluenesulfonic acid, 10-14 parts of polyethylene fibers, 0.7-1 part of potassium dichromate, 50-60 parts of 96%-98% sulfuric acid, 0.4-1 part of caprylic capric triglyceride, 5-7 parts of tributyl citrate, 2-3 parts of zinc dihydrogen phosphate, 10-14 parts of clay, 0.6-1 part of dialkyl p-diphenol, 2-3 parts of calcium fluoride, 0.2-0.3 parts of N,N-diethyl aniline, 1-2 parts of aluminum tripolyphosphate, 3-5 parts of polyvinyl alcohol and 2-3 parts of fine silica aerogel. Polyisoprene, fine silica aerogel and the like are added, so that the impact-resistance strength of a finished plate is effectively improved.