51 results about "Polybrominated biphenyl" patented technology

A packaging article for protectively storing perishable paper products that includes protective materials that protect the packaging article and its contents from any of a number of threats including water damage, fire damage, mold, insects, bacteria, fungi and theft. The packaging article comprises a bottom wall, side walls and a closure that surround and define an interior cavity in which the paper products are stored or transported. Each of the bottom wall, side walls and closure are made from a plurality of layers. Protective materials are applied to one or more of the bottom wall, side walls and closures by either impregnating a paper or cardboard with a suitable chemical, applying a film thereover, spraying a coating thereover or sandwiching the protective material between two adjacent layers. Suitable chemicals that produce the desired properties include, but are not limited to wax, oil, plastic, polybrominated diphenyl ether, polybrominated biphenyl, brominated cyclohydrocarbons, boric acid and hydrogen peroxide. A radio frequency identification tag may also be received within the wall of the packaging article to protect the same against theft.

The invention relates to an environment-friendly polyurethane primer used universally by coiled materials and application thereof. The polyurethane primer is prepared by mixing the following components by weight ratio: 30-50 of polyester resin 1, 0-20 of polyester resin 2, 6-8 of crosslinking agents, 20-30 of pigments, 1-5 of epoxy phosphate compounds, 0.2-1 of curing catalyst and 12-20 of solvents, wherein the pigment comprises titanium dioxide powder and an anti-corrosive pigment in a ratio of 1-3:1; the titanium dioxide powder is rutile type; and the anti-corrosive pigment is a calcium ion exchange antirust pigment without heavy metal ions. The environment-friendly polyurethane primer contains no toxic components such as heavy metal ions and polybrominated biphenyl in the production process and in the formula and reaches the European Union RoHS standard requirement.

The invention relates to a trivalent chromium natural colour passivation solution for processing an aluminium alloy, comprising the following components by contents: 1-2 g/L of chromic salt, 0.05-0.1 g/L of zirconium salt, 0.01-0.03 g/L of nickel sulfate NiSO4.6H2O, 0.4-0.8 g/L of film-forming agents, 0.4-0.6 g/L of trisodium citrate Na3C6H5O7.2H2O, and the balance of water. The trivalent chromium natural colour passivation solution does not contain harmful substances, i.e. hexavalent chromium, lead, mercury, cadmium, polybrominated diphenyl ethers, polybrominated biphenyl, and the like, can be recycled, realize the clean production, passivate at normal temperature and save the energy; in addition, the aluminium alloy processed by the trivalent chromium natural-colour passivation solution has white and bright surface colour and lustre, colour approximate to the natural colour of the aluminium alloy and film neutral salt spray corrosion property meeting the national standard and can realize the substitution of the trivalent chromium passivation solution for a hexavalent chromium passivation solution.

The invention discloses a method for degrading polybrominated diphenyl ether by combining surfactant solubilization and UV technology, which belongs to the technical field of environment-friendly halogenated aryl hydrocarbon organic pollutant treatment. The method adopts the technical proposal that surfactant solubilization of 2,2',4,4',5-pentabromated diphenyl ether is improved in a hydrophobic environment provided by nonionic surfactant micelle (Brij 35 or Brij 38) under the conditions of normal temperature and pressure, water bath and ultrasonic sound; and the 2,2',4,4',5-pentabromated diphenyl ether which is dissolved in a surfactant solution is subjected to UV advanced treatment at normal temperature and pressure and then subjected to stepwise debromination reaction or intermolecular elimination and annulation reaction to generate intermediate products, namely PBDEs from monobromo to tetrabromo and polybrominated dibenzofuran (PBDFs) from monobromo to tetrabromo. The whole technology has short time consumption and high efficiency, and the method can selectively degrade target pollutant without damaging a surfactant, provides convenience for recycling of the surfactant, and has good application prospect in the aspect of remediation of soil polluted by the PBDEs in electronic waste recycling sites.

The invention relates to an environmentally friendly flame retarding styrene based resin in a polymer material technical field. The environmentally friendly flame retarding styrene based resin is prepared by the high-speed mixing of styrene based resin, main flame retardant, auxiliary flame retardant, toughening agent, antioxidant and stabilizer, twin-screw extrusion, hot cutting and air cooling. The color of the environmentally friendly flame retarding styrene based resin can be chosen arbitrarily, has good fluidity and stability, can be widely applied to injecting and extruding processing, and can enable users to change for using under the manufacturing condition of present materials or by small regulation without complicated and lengthy regulation for a new technology; and solves limitation problems like an European Union RoHS instruction, and provides an excellent material which can be suitable for a larger market for a majority of plastic product manufacturers. The environmentally friendly flame retarding styrene based resin of the invention realizes a UL90 VO grade of flame retardant only under the situation of slightly decreasing resin mechanical performance, and cost is only kept at a level of using polybrominated biphenyl or polybrominated diphenyl ether products.

The invention relates to an anti-aging halogen-free flame retardant thermoplastic polyurethane elastomer, belonging to the technical field of high molecular materials. The elastomer comprises the following components in percentage by weight: 60-80% of thermoplastic polyurethane, 1-10% of reaction type anti-aging chain extender, 10-30% of halogen-free flame retardant, 1-10% of flame retardant synergist, 0.1-2% of antioxidant and 0-5% of non-flame retardant additive, wherein the thermoplastic polyurethane refers to one or two of polyether type thermoplastic polyurethane and polyester type thermoplastic polyurethane; and the reaction type anti-aging chain extender refers to one type or more types of epoxy resin. In the invention, through reasonable arrangement of the elastomer components, the resistance to high temperature and high humidity, hydrolysis and aging as well as the flame retardant dripping resistance of the halogen-free flame retardant thermoplastic polyurethane elastomer are improved; and the anti-aging halogen-free flame retardant thermoplastic polyurethane elastomer does not contain halogen or heavy metals particularly like lead, mercury, cadmium and hexavalent chromium or poly-brominated diphenyl ethers or poly-brominated biphenyls.

A cardboard box for protectively storing perishable paper products that includes protective materials that protect the box and its contents from any of a number of threats including water damage, fire damage, insects, mold and fungi. The box comprises a bottom wall, side walls and a lid that surround and define an interior cavity in which the paper products are stored. Each of the bottom wall, side walls and lid are made from cardboard. Protective materials are applied to one or more of the bottom wall, side walls and lids by either impregnating the cardboard with a suitable chemical, applying a film over the cardboard or spraying a coating thereover. Suitable chemicals that produce the desired properties include, but are not limited to wax, oil, plastic, polybrominated diphenyl ether, polybrominated biphenyl, brominated cyclohydrocarbons, boric acid and hydrogen peroxide.

The invention discloses a flame retardant polypropylene composite compounded by layered thermometal hydroxide and an intumescent flame retardant and a preparation method of the flame retardant polypropylene composite. The flame retardant polypropylene composite comprises the following components in percentage by weight: 60-73 percent of polypropylene, 23-33 percent of intumescent flame retardant, 1-2 percent of layered thermometal hydroxide and 3-7 percent of bulking agent. The flame retardant polypropylene composite compounded by the layered thermometal hydroxide and the intumescent flame retardant is excellent in heat stability, does not contain harmful substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polyborminated diphenyl ethers, is low in calorific value and fuming value in the combustion process, is harmless to the environment and a human body and also has good physical and mechanical properties and processability.

The invention relates to the technical field of printing ink, in particular to quick-drying type lead-free environment-friendly glass printing ink and a preparation method thereof. The quick-drying type lead-free environment-friendly glass printing ink comprises the following raw materials in parts by weight: 40-60 parts of lead-free glass powder, 20-30 parts of an organic carrier, 1-5 parts of a dispersing agent, 6-10 parts of pigment and 10-20 parts of a solvent. The quick-drying type lead-free environment-friendly glass printing ink does not contain harmful substances such as lead, cadmium, mercury, hexavalent chromium, PBB (Polybrominated Biphenyl) and PBDE (Polybrominated Diphenyl Ethers), is strong in adhesive force, good in shading property and high in glossiness, well wets a glass substrate, and is well compatible with the glass substrate.

The invention discloses a method for detecting polybrominated biphenyl ether by using a Fe3S4-magnetic effervescent tablet assisted ionic liquid-based dispersion liquid liquid microextraction combinedtechnology. The Fe3S4 is synthesized by using FeCl3 6H2O and thiourea as raw materials and adopting a solvothermal method for extracting the polybrominated biphenyl ether, and the extraction efficiency of the Fe3S4 is improved by about 21-32% compared with that of a prior commercial magnetic nano material (such as Fe3O4); the effervescent precursors of the effervescent tablets are environmental-friendly and non-toxic inorganic acid salts and basic salts, and replace toxic dispersed organic solvents in the prior dispersion liquid micro-extraction; according to the combined technology, novel environmental-friendly extractant ionic liquid [C4MIM] [PF6] is adopted to replace the prior toxic chlorine-containing solvent, and the whole combined technology embodies the environment-friendly concept. Under the optimum conditions, the technology is used in liquid matrix samples, the recovery of polybrominated diphenyl ether can reach 77.3-106.7%, and the minimum detection limit is as low as 0.012-0.078 Mug/L. The method also has high precision (1.32-4.83%).

The invention relates to a detection method of textile, in particular to a detection method for PBB (polybrominated biphenyl) and PBDE (polybrominated diphenyl ether) fire retardants in the textile. The method comprises steps as follows: producing standard curve equations; preparing a to-be-detected sample solution; measuring the to-be-detected sample solution by an ultra-high performance liquid chromatograph, and the like, wherein chromatographic conditions are as follows: a chromatographic column is ACQUITY UPLC BEH C18 1.7 mu m, 2.1*50 mm; a mobile phase A is acetonitrile, and a mobile phase B is 5mM ammonium acetate with pH of 4.5; gradient elution is adopted; the column temperature is 40 DEG C; the detection wavelength is 230 nm; the sample introduction volume is 1 mu L. According to the method, 12 PBBs and PBDEs can be effectively and rapidly separated, the chromatographic analysis time does not exceed 10 min, and besides, the method has a better linear relation and is suitable for rapid detection of PBBs and PBDEs in the textile in actual working.

A process for treating a solid-liquid mixture by cavitation to decompose at least some contaminant associated with the solid particles, the contaminant either being absorbed into the pores of the solid or onto the surface of the solid particles. The process includes the step of subjecting the mixture to cavitation such that a portion of the contaminant is chemically decomposed. Typically the chemical decomposition occurs at the surface of the solid particle. Typically the cavitation process is an ultrasonic treatment step, although other cavitation processes are applicable, for example high shear mixing. The cavitation effect is capable of achieving physico-chemical changes at the particle surfaces. The localized high temperatures on bubble collapse (as high as 5000K) can decompose contaminant substances such as PCB and other hazardous materials including polybrominated biphenyl PBB), organochloride and organophosphate compounds, pesticides and the like.

The invention relates to a preparation method of a polybrominated biphenyl ether monomer. The method comprises the steps that iodine is oxidized by sodium iodate and is subjected to reaction with bromobenzene to obtain a series of diaryl iodonium salt, and the diaryl iodonium salt and the bromobenzene are subjected to reaction under catalysis of alkali, and polybrominated biphenyl ether is obtained. According to the method, any type of polybrominated biphenyl ether monomer can be prepared, and the method can support detection and activity researches of the type of compounds.

The invention relates to mirror ink for automotive glass and a preparation method of the mirror ink. The mirror ink is characterized by comprising, by mass, 10-30% of organic carriers, 2-8% of solvent, 2-8% of pigment raw materials and the balance unleaded glass powder. The ink for the automotive side windshield glass contains no harmful substances such as lead, cadmium, mercury, hexavalent chromium, PBB (polybrominated biphenyl) and PBDE (polybrominated diphenyl ethers) so as to meet the requirements of social devolvement on environmental protection. The mirror ink has the advantages that the mirror ink gives priority to the unleaded glass powder which contains no elements such as lead, cadmium, mercury and hexavalent chromium harmful to the environment, so that environmental protection is benefited; and the mirror ink is good in wettability, surface smoothness and bonding strength with the glass after sintering and high in shading rate and acid-resistant, has gloss exceeding requirements of general manufacturers and can completely substitute for exiting ink to be used for the field of automotive glass manufacturing.

The invention relates to application of biphenyl dioxygenase in degrading polychlorinated biphenyl, which comprises the following steps of: firstly, constructing an expressing gene carrier of pseudomonas fluorescens of a dioxydiphenyl dioxygenase gene optimized by preferred codons; secondly, inheriting and transforming pseudomonas fluorescens of the expressing gene carrier containing the dioxydiphenyl dioxygenase optimized by the preferred codons; and finally, determining the result of degrading dioxydiphenyl by the obtained transformant. The invention can be used for preparing gene engineering bacteria of microbes for degrading polychlorinated biphenyl.

The invention discloses a preparation method of an anticoagulant antioxidant, comprising the following steps: 1) making an aqueous emulsion by high-speed shearing of deionized water and a water-immiscible phase, wherein the water-immiscible phase contains a main antioxidant, an auxiliary Antioxidant and emulsifier; 2) add thickener, antifreeze, anticoagulant, defoamer, flame retardant, flame retardant synergist and toughening agent in described aqueous emulsion; Described each raw material accounts for The total mass ratio of the emulsion-type low particle size high-efficiency antioxidant is: primary antioxidant 5-20%, auxiliary antioxidant 8-40%, emulsifier 2-4%, thickener 0.5-4%, antifreeze 1 ~3%, anticoagulant 6~12%, defoamer 1~8%, flame retardant 3~7%, flame retardant synergist 4~9%, toughening agent 2~8%, the rest is deionized Water; the present invention has the following positive effects: using environmental brominated flame retardants such as decabromodiphenylethane, brominated triazine, brominated epoxy, tetrabromobisphenol A to replace polybrominated biphenyls and polybrominated diphenyl ethers, very environmentally friendly.

The invention relates to a synthesis method for a polybrominated benzene [1.3] oxazine derivative, comprising the following steps of: carrying out reaction of compounds shown in formula (I) and N-bromo-succinimide (NBS) in a solvent at 25-100 DEG C to obtain the polybrominated benzene [1.3] oxazine derivative shown in formula (II) after the reaction is completed. The compounds shown in the formula(I) and the formula (II) are as shown in the description, wherein R is chosen from phenyl, substituted phenyl, C1-C5 alkyl (preferably isopropyl) or thiophene. The synthesis method has the advantagesof being mild in reaction conditions, environment-friendly, simple in operation and capable to obtain polybrominated benzene oxazine compounds which cannot be obtained by conventional methods throughone pot multi-step reaction.

The invention relates to a release agent for lead-acid battery cast-welding and a preparation method thereof. The release agent mainly comprises 2% of hexavalent chromium extracted by an alkaline solution, 10% of polybrominated biphenyl, 10% of monobromobiphenyl, 10% of dibromobiphenyl, 10% of tribromodiphenyl ether, 5% of a resin having high heat resistance, 4% of methanol, 2% of a surfactant, 1% of glycerol and 46% of a solvent. The preparation method comprises the following steps of heating glycerol and the surfactant to a temperature of 80 to 100 DEG C, adding methanol into the heated glycerol and the surfactant, stirring for 1 hour, adding hexavalent chromium extracted by an alkaline solution, polybrominated biphenyl, monobromobiphenyl, dibromobiphenyl, tribromodiphenyl ether, the resin having high heat resistance and the solvent into the mixture, and stirring for 1 hour. The release agent can effectively improve welding effects, realize fast release after cast-welding, improve surface finish of a bus-bar, prolong a service life of a storage battery, prevent that lead residues and other attachments adhere to the interior of a released mold, avoid mold cleaning after casting and be prepared simply and easily, has no peculiar smell and no harmful substances, and is safe and environmentally friendly.

The invention discloses CdTe labeled antibodies and a method for detecting polybrominated biphenyl by using the CdTe labeled antibodies. The method comprises the following steps: preparing the CdTe labeled antibodies, carrying out a competitive reaction on a to-be-detected sample and the CdTe labeled antibodies, carrying out washing to remove redundant free labeled antibodies, and placing obtainedCdTe labeled antibodies onto a fluorescence microplate reader for reading. When the quantity of the CdTe labeled antibodies is fixed, the more the content of the polybrominated biphenyl in the to-be-detected sample is, the less the quantity of the CdTe labeled antibodies combined with a solid-phase antigen is, while the lower the fluorescence value is, the higher the inhibition rate is; otherwise, the higher the fluorescence value is, the lower the inhibition rate is; and the content of the polybrominated biphenyl in the to-be-detected sample can be calculated according to a pre-obtained polybrominated biphenyl standard curve and the inhibition rate of the to-be-detected sample. The detection method disclosed by the invention has the advantages of strong specificity, high sensitivity, convenience, rapidness, large analysis capacity, safety, reliability, no need of expensive instruments and complex pretreatment processes, low professional technical requirements on analysts, and easiness in popularization and promotion.

The invention relates to an artificial compound soil layer percolation system for removing polybrominated diphenyl ether, wherein the system sequentially comprises a trapping aerobic degradation layer (1), an adsorption facultative degradation layer (2), an exogenous electron donor strengthening degradation layer (3) and a supporting layer (4) from top to bottom. According to the present invention, the system can remove more than 90% of polybrominated diphenyl ether after the continuous operation for 3-5 years, has the hydraulic load of more than 0.5 m/d, and is used in the application of the regenerated water to nourish the groundwater river bed through the river and lake utilization, the deep purification of the polybrominated diphenyl ether-polluted water body, and the ground design of the electronic demolition place.

The invention discloses a manufacturing technology for tin wire production, and relates to the technical field of tin wire production. The manufacturing technology is aimed at solving the problems inthe prior art that as lead-free tin wires have relatively low lead content inside due to the requirements of the manufacturing technology, the gloss of welding spots of the lead-free tin wires is excessively dark, and when the lead-free tin wires are used in certain environments, the overall aesthetic property is affected. The manufacturing technology comprises the following steps of: step one. preparing a certain proportion of tin, silver, and copper raw materials according to the actual processing requirements, and meanwhile preparing certain trace amounts of lead, mercury, cadmium, and polybrominated biphenyl materials; step two. preparing an electric melting furnace required for smelting, and then putting the tin material and other auxiliary materials into the electric melting furnaceaccording to the corresponding proportion until the raw materials are smelted into liquid; and step three. after smelting the raw materials, pouring an antioxidant into a smelting furnace containing the raw materials, and then increasing the temperature of the smelting furnace and agitating slightly to cause the raw materials to completely melt.

The invention relates to a printing ink for side windshield of an automobile and a preparation method of the printing ink. The printing ink is characterized by consisting of the following components in percentage by mass: 6-24 percent of organic resin, 10-28 percent of solvent, 2-12 percent of flatting agent, 2-10 percent of dispersant and the balance of leadless glass powder. The printing ink for the side windshield of the automobile and the preparation method of the printing ink have the beneficial effects that: 1, the printing ink is mainly prepared from the leadless glass powder and can be easily accepted by people; 2, resin containing no harmful substances such as chlorine is added into the printing ink, the wettability and the surface smoothness of the printing ink and the bond strength of the printing ink and glass after sintering are good, the shading rate is high, and the printing ink can be used for completely substituting the conventional printing ink to be used in the field of production of the side windshield of the automobile; and 3, the printing ink contains no harmful substances such as lead, cadmium, mercury, sexavalent chromium, PBB (Polybrominated Biphenyl) and PBDE (Polybrominated Diphenyl Ether). By adjusting the contents of various inorganic components and organic components, the printing ink can adapt to a glass substrate, so that the product performance is more superior.