51 results about "Dibromoneopentyl glycol" patented technology

The invention discloses a high-strength flame-retardant modified polyurethane composite material including: hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, polypropylene glycol, toluene diisocynate, 4,4'-diphenylmethane diisocynate, bisphenol A, dibromoneopentyl glycol, dimethythiotoluene diamine, diaminodiphenylmethane, 2-ethyl-4-methylimidazole, dibutyltin dilaurate, diglycidyl resorcinol ether, a filling material, melamine, ammonium polyphosphate, and N,N'-bis(2-thio-5,5-dimethyl-1,3,2-dioxaphosphocyclohexyl)ethylenediamine. The high-strength flame-retardant modified polyurethane composite material has high strength, is excellent flame-retardant performance and can satisfy use demands in various fields.

The invention provides a novel flame-retardant polyurethane adhesive and a preparation method thereof. The novel flame-retardant polyurethane adhesive is prepared from polytetrahydrofuran diol 1000, toluene diisocynate, a reaction type flame retardant, a chain extender and a cross-linking agent, wherein the reaction type flame retardant is dibromoneopentyl glycol; the chain extender is 1,4-butanediol; the cross-linking agent is trimethylolpropane. The preparation method comprises the following steps: (a) preparing a component A; (b) preparing a component B; and (c) preparing the polyurethane adhesive. The invention discloses the novel flame-retardant polyurethane adhesive and the preparation method thereof. The polyurethane adhesive is simple and feasible in production process, is not only excellent in flame retardant property, but also relatively long in service life, relatively good in thermal stability and relatively low in glass-transition temperature.

The invention discloses a high-strength polyurethane composite material. The high-strength polyurethane composite material comprises the following raw materials: hydroxyl-terminated polybutadiene, polytetrahydrofuran ether glycol, toluene diisocynate, 4,4'-diphenyl methane diisocyanate, 1,4-butanediol, dibromoneopentyl glycol, dibutyltin dilaurate, dimethythiotoluene diamine and a modified composite filler, wherein the modified composite filler is prepared according to the following process: adding a silane coupling agent TM551 and anilinomethyl triethoxysilane to toluene, stirring the materials uniformly, adding carbon black, medium super abrasion furnace black, multiwalled carbon nanotubes, barium sulfate and nano titania and stirring the materials to react at room temperature after ultrasonic dispersion, thus obtaining the high-strength polyurethane composite material. The high-strength polyurethane composite material provided by the invention has high strength and good heat resistance and can meet the use requirements of various fields.

The invention provides a silkworm silk flame retardant aid which comprises the components of dibromoneopentyl glycol (DBNPG), a dibromoneopentyl glycol phosphate cyanamide salt, a hydroxy-containing non-polar phosphorus oligomer (HFPO), and 1,2-butanetetracarboxylic acid (BTCA), wherein the mass of the components of same mass or largest contents in the flame retardant aid does not exceed 10% of the mass of component of the lowest mass. The invention also provides a silkworm silk flame retardation arrangement method. The method comprises the following steps: 1, preparing or providing the flame retardation aid; 2, diluting by adding purified water having a weight two times the weight of the flame retardation aid, and uniformly stirring; 3, adding silkworm silk to be subjected to flame retardation arrangement to a flame retardation arrangement liquid prepared in last step, wherein the weight ratio of the silkworm silk to the flame retardation arrangement liquid does not exceed 0.9:1, and the error is equal to or less than 10%; and 4, drying the silkworm silk subjected to the flame retardation arrangement in step 3 with a dewaterer, and drying with a flat tender. The flame retardation aid provided in the invention is halogen-free and nontoxic. The silkworm silk flame retardation arrangement method provided in the invention, which effectively uses the flame retardation aid, is economic and reasonable.

The invention discloses a method for preparing 1,1-cyclopropanedimethyl cyclicsulfite. In the method, dibromoneopentyl glycol serving as a raw material is reacted with thionyl chloride in a first reaction solvent to form cyclicsulfite serving as a solid intermediate; and the cyclicsulfite is reacted with zinc powder in a second reaction solvent to form a 1,1-cyclopropanedimethyl cyclicsulfite product. The preparation method provided by the invention achieves high reaction yield, simplifies reaction steps, reduces cost and is more favorable for industrial production.

The invention discloses a composite flame retardant modified polyurethane composite material, the raw materials of which include: polyether polyol, 4,4'-diphenylmethane diisocyanate, toluene diisocyanate, epoxy resin, acrylic resin, pentaerythritol tri Allyl Ether, Anilinomethyltriethoxysilane, Trimethylolpropane, Dibromoneopentyl Glycol, Dibutyltin Dioctoate, Dimethylthiotoluenediamine, 4,4'-Methylenebis-Ortho Chloroaniline, attapulgite, montmorillonite, hollow glass microspheres, white carbon black, expanded vermiculite, multi-walled carbon nanotubes, epoxidized natural rubber, composite flame retardant; composite flame retardant consists of expandable graphite, A mixture of zinc stannate and P‑N‑Si flame retardant. The composite flame retardant modified polyurethane composite material proposed by the invention has high strength and excellent flame retardancy, and can meet the use requirements in various fields.

The invention discloses a preparation method of a polyurethane composite material with heat-resistant property, and relates to the technical field of preparation of polyurethane. The preparation method comprises the following steps of mixing epoxidated hydroxyl terminated polybutadiene, polytetrahydrofuran ether glycol, 4,4'-diphenylmethane diisocyanate, and dibutyltin dilaurate, heating to react,adding 3,5-dimethyl sulphide toluene diamine and dibromo neopentadiol, stirring to react, defoaming, drying and aging, so as to obtain a polyurethane prepolymer; adding the polyurethane prepolymer, phenolic resin, styrene, xanthophyll, white carbon black, nanometer silicon dioxide, kaolin and a plasticizer into a double-screw mixer, mixing, adding aluminum hydroxide, zinc borate, zinc stearate, avulcanizing agent and a vulcanizing accelerator, mixing, and discharging, so as to obtain the mixed material; molding and forming the mixed material, and radiating by 60Co gamma rays, so as to obtainthe polyurethane composite material. The polyurethane composite material has the advantages that the heat stability and the mechanical property are good, and the aging-resistant property is good.

The invention discloses a salt-tolerant Gemini cation VES (Viscoelastic Surfactant) as well as a preparation method thereof and salt-tolerant clean fracturing fluid. The salt-tolerant Gemini cation VES is synthesized and obtained by taking fatty acid amide propyl dimethylamine and dibromoneopentyl glycol as raw materials, micelle can be formed by the salt-tolerant Gemini cation VES under the action of hypersalinity sea water or stratum water, so that a solution can have good viscoelasticity, the salinity tolerance of the salt-tolerant Gemini cation VES can be up to 150,000 mg/L or above, the salt-tolerant Gemini cation VES can be used for preparing seawater-based clean fracturing fluid, and meanwhile, gel breaking caused after the salt-tolerant Gemini cation VES encounters the hypersalinity stratum water can be avoided; the salt-tolerant Gemini cation VES can also be used for preparing the seawater-based clean fracturing fluid, and the tolerable maximum salinity can be up to 200,000 mg/L. The preparation method disclosed by the invention is simple, and the yield of products is increased to a large extent and is commonly up to 96 percent; in addition, reaction byproducts are less, and the influence on the properties of the products is small; during preparation of the clean fracturing fluid, the using amount of the salt-tolerant Gemini cation VES is reduced, and the cost is reduced.

The invention relates to a mulberry silk flame retardant agent. The innovation point is that the flame retardant agent is composed of the following ingredients: dibromoneopentylene glycol DBNPG, dibromoneopentyl glycol phosphate ester cyanamide salt, polyhydroxyl organophosphorus oligomer HFPO and 1,2,3,4-butanetetracarboxylic acid BTCA. The mass ratio of the above ingredients in the flame retardant agent is 2:3:3:1. By the technical scheme, BTCA in the flame retardant agent is connected with a hydroxyl group on silk fiber through simple ester bond, and BTCA can be directly connected with silk and HFPO or a BTCA-HFPO-BTCA bond can be connected between two silk protein molecules. After finishing with BTCA and HFPO, silk shows high-efficiency flame retardancy. In addition, the flame retardant agent provided by the invention is nontoxic and has no adverse effect on the environment. By a mulberry silk flame-proof treatment method, the above flame retardant agent can be effectively utilized, and mulberry silk treated by the use of the flame retardant agent has excellent flame retardancy property and still maintains original silk quality. Besides, flame-proof treatment cost is the most economic and rational.

The invention discloses a preparation method and application of flame-retardant polyether containing nitrogen and bromine. The flame-retardant polyether contains N and Br elements and is reactive flame-retardant polyether. According to the preparation method, the flame-retardant polyether containing N and Br is prepared from the following raw materials in parts by weight: 5-10 parts of ethylenediamine, 20-35 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 53-74.5 parts of epoxy propane. Polyurethane foaming plastics prepared from the flame-retardant polyether have a favorable flame-retardant effect and have the advantages of stable flame retardance and better foam quality as comparison with polyurethane foaming plastics prepared by additionally adding a flame retardant.

The invention discloses a flame retardant plastic woven bag. According to the formula and technology, 30-80 parts by weight of a plasticized flame-retardant master batch A, 30-80 parts by weight of a plasticized flame-retardant master batch B, 30-80 parts by weight of a plasticized flame-retardant master batch C, 10-30 parts by weight of nanom calcium carbonate and 100 parts by weight of polypropylene grain are jointly put into a drying mixer to be stirred and mixed into a mixture; the mixture is blown into films through a film blowing machine, and drawing and winding are performed; the wound wires are circularly knitted and formed. Due to the fact that various flame retardants with the good flame retardant efficiency such as antimonous oxide, dibromoneopentyl glycol, decabromodiphenyl ether, magnesium hydrate and aluminum hydroxide are adopted in the flame retardant master batches, the flame retardant performance of the woven bag is improved, and the films are washed through TBBP-A in the production process, so that the flame retardant performance of the woven bag is further improved, and the requirement of the market for the flame retardant woven bag is met.

The invention relates to a radiation-resistant paint for walls and a preparation method thereof. The paint contains the following components in parts by mass: 22-34 parts of nano modified pure acrylic emulsion, 10-20 parts of hydroxy ethyl polymethacrylate, 15-25 parts of zinc methacrylate soap, 2-7 parts of tri(2,3-dibromopropyl) phosphate, 1-7 parts of trimethylolpropane, 2-9 parts of melamine formaldehyde resin, 1-6 parts of rosin modified phenolic resin, 1-5 parts of polyphosphonate, 4-16 parts of argil, 0.4-2.2 parts of clay, 8-22 parts of zirconium oxide whisker, 3-10 parts of glass microsphere, 7-15 parts of dicumyl peroxide, 5-15 parts of boric acid, 7-16 parts of dibromoneopentyl glycol, 1-6 parts of propanediol aether acetate and 2-10 parts of distilled water. The paint provided by the invention can effectively barrier electromagnetic waves, static electricity rays, infrared heating effects and other radiations.

The invention relates to a preparation method of 5-oxaspiro[2,4]heptane-6-one (I). The preparation method comprises the following steps: taking dibromoneopentyl glycol (V) as the primary raw material, carrying out a cyclization reaction in the presence of zinc powder so as to obtain cyclopropyl dimethanol (IV), subjecting the cyclopropyl dimethanol (IV) to react with thionyl chloride so as to obtain cyclopropyl dimethanol cyclicsulfite (III); carrying out a ring-opening reaction on the cyclopropyl dimethanol cyclicsulfite (III) in the presence of cyanide so as to obtain a nitrilo-alcohol compound (II); hydrolyzing the compound (II) under an alkaline condition, and then carrying out a ring-closing reaction under an acidic reaction so as to obtain the 5-oxaspiro[2,4]heptanes-6-one (I), whose structural formula is represented in the description. The preparation method has the advantages of smart design, cheap and available primary raw materials, simple and applicable technology process, benefit for industrial production, and suitability for large-scale promotion and application.

The invention provides a selective etching solution for copper or copper alloy. The etching solution comprises peracetic acid, ethyl trifluoropyruvate, dibromoneopentyl glycol, ethylenediamine tetraacetic acid, 2,2-bis(4-methylphenyl)hexafluoropropane, 4,4'-(2,2,2-trifluoro-1-(trifluoromethyl)ethylidene)bisphthalic acid and water. The etching solution has obviously high etching efficiency and etching selectivity, hardly etches a molybdenum layer, and has a high etching rate for a copper layer. Besides, the etching solution provided by the invention can not produce etching residue in the etching process, thereby having important application value.

The invention discloses a preparation method and application of flame-retardant polyether. The flame-retardant polyether contains N, P and Br elements and is reactive flame-retardant polyether. According to the preparation method, the flame-retardant polyether is prepared from the following raw materials in parts by weight: 5-10 parts of ethylenediamine, 20-30 parts of tri(3-hydroxypropyl)phosphine, 23-28 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 30-51.5 parts of epoxy propane. Polyurethane foaming plastics prepared from the flame-retardant polyether have a favorable flame-retardant effect and have the advantages of stable flame retardance and better foam quality as comparison with polyurethane foaming plastics prepared by additionally adding a flame retardant.

The invention provides a polyurethane thermal insulation material and a preparation method thereof. The material is composed of a component A and a component B, wherein according to parts by weight, the component A is prepared from 7 to 20 parts of dibromoneopentyl glycol type epoxy resin, 30 to 50 parts of polyester polyol, 20 to 40 parts of polyether polyol, 5 to 10 parts of modified expanded perlite, 20 to 40 parts of catalyst, 15 to 30 parts of flame retardant, 1 to 3 parts of stabilizer and 15 to 30 parts of foaming agent, and the component B is polyphenyl polymethylene polyisocyanate; the foaming agent is prepared from 1 to 5 parts of pentafluoropropane, 6 to 12 parts of pentafluorobutane and 2 to 6 parts of pentane; the modified expanded perlite is mainly prepared from expanded perlite, acrylic resin emulsion, a silane coupling agent and a silicone hydrophobic agent. The composite material is improved in flame retardancy while maintaining excellent compressibility and thermal insulation property.

The invention discloses a preparation method of modified polyurethane acrylate light-cured resin, which comprises the following steps: esterifying dibromo neopentyl glycol and acrylic acid, washing with water to obtain dibromo neopentyl glycol diacrylate A, carrying out substitution reaction on the dibromo neopentyl glycol diacrylate A and sodium methacrylate, and washing with water to obtain a functional monomer B; meanwhile, polyisocyanate and hydroxyl-terminated acrylate react to prepare bifunctional polyurethane acrylate C, and finally, the functional monomer B, the polyurethane acrylate C and organic amine are mixed to prepare the modified polyurethane acrylate light-cured resin with the molecular weight of 2000-5000. The modified polyurethane acrylate light-cured resin provided by the invention is high in crosslinking density after film formation, and has the advantages of excellent flexibility and hardness, good adhesion to a base material and the like. And tertiary amine is introduced into a main chain, so that the problem of oxygen polymerization inhibition can be effectively overcome, the curing speed is greatly increased, and good technical progress is achieved.

The invention relates to the technical field of fabrics, in particular to an antistatic finishing agent for fabric finishing. The antistatic finishing agent for fabric finishing is prepared from, by weight parts, 6 parts of ammonium sulfamate, 2.6 parts of methyl salicylate, 6 parts of sodium benzoate, 4.2 parts of alginic acid, 1.5 parts of pentaerythritol, 4.6 parts of methylcellulose, 2.2 partsof soybean peptide, 6.5 parts of ammonium phosphate, 2.1 parts of sodium dodecyl sulfate, 2.1 parts of dibromoneopentyl glycol, 220 parts of water and 5.6 parts of additives. The antistatic agent cangreatly improve the antistatic performance of a fabric, has no corrosiveness to the fabric and does not hurt human skin.

The invention discloses a preparation method of flame retardant polyether for polyurethane foam and application of the prepared flame retardant polyether. The flame retardant polyether contains P and Br elements and is a reaction type flame retardant polyether. The flame retardant polyether is prepared from the following raw materials in parts by weight: 20-30 parts of tri(3-hydroxypropyl)phosphine, 23-28 parts of dibromoneopentyl glycol, 0.5-2.0 parts of dimethylamine and 40-56.5 parts of epoxy propane. The polyurethane foam plastic prepared by adopting the flame retardant polyether has good flame retardant effect and is stable in flame retardant property and good in foam quality compared with the polyurethane foam plastic prepared from extra adding flame retardant.

A preparation method of disclosed elastic epoxy resin comprises the following steps: mixing adipic acid, hexachlorobridge methylene phthalic anhydride, propylene glycol and dibromo neopentyl glycol for reaction to obtain a hydroxyl-terminated flame-retardant elastic polyester prepolymer; and reacting the hydroxyl-terminated flame-retardant elastic polyester prepolymer with bisphenol A epoxy resin under the action of a catalyst to obtain the elastic epoxy resin. The resin provided by the invention has many active groups, so that the adhesive force of the prepared coating film on amorphous alloy, silicon steel and mould pressing composite materials (slot wedges) can reach more than 10 MPa, and the adhesive force on the surface of a fluorosilicone pouring sealant can also reach 5 MPa. The water-based flame-retardant surface insulating paint provided by the invention has an oxygen index greater than or equal to 40, and has good wear resistance.