35results about How to "Has synergistic flame retardant effect" patented technology

The invention provides a phosphorus / silicon-containing reactive high-molecular flame retardant, and a preparation method and application thereof, relating to flame retardants. The preparation method comprises the following steps: reacting methacryloyl chloride and p-phenylenediamine in the presence of a solvent and an acid-binding agent, carrying out vacuum filtration to remove the acid-binding agent salt generated by the reaction, and purifying the crude product by water washing, rotary evaporation and drying to obtain 4-methacrylamidoaniline; reacting hydroxyethyl methacrylate and 9,10-dihydro-9-oxa-10-phosphaphenanthryl-10-oxide in the presence of carbon tetrachloride, a solvent and an acid-binding agent, carrying out vacuum filtration to remove the acid-binding agent salt generated by the reaction, and purifying the crude product by water washing, rotary evaporation and drying to obtain a phosphorus-containing monomer; and carrying out free-radical polymerization on the 4-methacrylamidoaniline, phosphorus-containing monomer and methylacryloyloxypropyl heptaisobutyl POSS (polyhedral oligomeric silsesquioxane) under the initiation conditions of a solvent and an initiator to obtain the phosphorus / silicon-containing reactive high-molecular flame retardant. The phosphorus / silicon-containing reactive high-molecular flame retardant can be used for preparing a flame-retardant epoxy resin.

The invention relates to a method for preparing nitrogen phosphate sulfur-containing reactive flame retardant applied to epoxy resin. The preparation method comprises the following steps: sequentially adding p-hydroxy benzaldehyde, aminothiazole and a solvent into a reactor which is provided with a condensing pipe and a stirrer, and introducing inert gas to perform first reaction; adding 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to carry out second reaction; and pumping, filtering, washing and drying the system to obtain white or light brown nitrogen phosphate sulfur-containing reactive flame retardant after the reaction is completed. The method has the advantages that 1, the synthesizing process is short, the cycle is short, post-treatment is easy, and control and industrial production are easy; 2, the prepared flame retardant contains nitrogen, phosphate and sulfur three flame-retardant elements at the same time, has a synergistic flame-retardant effect, and can be used for remarkably improving the flame retarding performance of epoxy resin; and 3, the prepared flame retardant is a reactive flame retardant, and can be used for keeping stability and mechanical performance of cured epoxy resin while improving the flame retarding effect of the cured epoxy resin.

The invention discloses a heat-preservation and sound-insulation wall. The heat-preservation and sound-insulation wall comprises a wall body. The wall body is composed of a plurality of hollow cubic structures which are connected with one another. Valves are arranged on the hollow cubic structures. Valve caps which are matched with the valves are arranged on the valves. A plurality of supporting columns which are evenly distributed are arranged in each hollow cubic structure. The heat-preservation and sound-insulation wall is good in sound-insulation and heat-preservation effect, low in weight, convenient to construct and capable of being used repeatedly.

The invention belongs to the technical field of adhesives, and particularly relates to a preparation method of a flame-retardant and waterproof adhesive for a corrugated carton. The preparation methodspecifically comprises the following steps: (1) an organic silicon modified emulsion is prepared; (2) a white prepolymer emulsion is prepared; (3) an acrylic modified flame-retardant organic siliconemulsion is prepared; and (4) 110-120 parts of the acrylic modified flame-retardant organic silicon emulsion is put into a high-speed mixer, 1.5-2.3 parts of carnallite powder, 24-27 parts of polyhalite powder and 5-7 parts of a flame retardant are added, even stirring and mixing are conducted, and then the flame-retardant and waterproof adhesive is obtained. The prepared adhesive is transparent,high in adhesion and good in stability, water-based adhesive bonding, quick drying, and acid and alkali resistance are achieved, no organic solvent is contained, the poisonless, tasteless, non-combustible, environment-friendly and pollution-free effects are achieved, and pollution-free production can be achieved. The flame-retardant and waterproof adhesive is suitable for the carton not coated andpolished, and the corrugated carton is protected very well.

The invention relates to a method for preparing nitrogen phosphate sulfur-containing reactive flame retardant applied to epoxy resin. The preparation method comprises the following steps: sequentially adding p-hydroxy benzaldehyde, aminothiazole and a solvent into a reactor which is provided with a condensing pipe and a stirrer, and introducing inert gas to perform first reaction; adding 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide to carry out second reaction; and pumping, filtering, washing and drying the system to obtain white or light brown nitrogen phosphate sulfur-containing reactive flame retardant after the reaction is completed. The method has the advantages that 1, the synthesizing process is short, the cycle is short, post-treatment is easy, and control and industrial production are easy; 2, the prepared flame retardant contains nitrogen, phosphate and sulfur three flame-retardant elements at the same time, has a synergistic flame-retardant effect, and can be used for remarkably improving the flame retarding performance of epoxy resin; and 3, the prepared flame retardant is a reactive flame retardant, and can be used for keeping stability and mechanical performance of cured epoxy resin while improving the flame retarding effect of the cured epoxy resin.

The invention discloses a heat-preservation and sound-insulation wall. The heat-preservation and sound-insulation wall comprises a wall body. The wall body is composed of a plurality of hollow cubic structures which are connected with one another. Valves are arranged on the hollow cubic structures. Valve caps which are matched with the valves are arranged on the valves. A plurality of supporting columns which are evenly distributed are arranged in each hollow cubic structure. The heat-preservation and sound-insulation wall is good in sound-insulation and heat-preservation effect, low in weight, convenient to construct and capable of being used repeatedly.

The invention relates to a polyurethane fireproof adhesive for construction, which is composed of a prepolymer component and a polyol component, wherein the prepolymer component is composed of diisocyanate, antimony trioxide, asbestos fiber, polypropylene carbonate polyol 1. The catalyst is composed of a polyol component composed of polypropylene carbonate polyol, a chain extender, a crosslinking agent, and bromine-containing polyol. Among them, antimony trioxide, asbestos fiber, and bromine-containing polyols have a synergistic flame-retardant effect, and the obtained fire-resistant adhesive can simultaneously take into account flame-retardant performance, flame-retardant durability, and mechanical properties.

The invention relates to a preparation method of polyurethane fireproof glue used for a building. The polyurethane fireproof glue used for the building is prepared by mixing a prepolymer component anda polyol component, wherein the prepolymer component is prepared from diisocyanate, antimony trioxide, asbestos fiber, polypropylene carbonate polyol and a catalyst, and the polyol component is prepared from polypropylene carbonate polyol, a chain extender, a crosslinking agent and bromine-containing polyol; and antimony trioxide, asbestos fiber, bromine-containing polyol have a synergistic flameretardant effect, and the obtained fireproof glue can give consideration to flame retardant property, flame retardant durability and mechanical properties at the same time.

The invention belongs to the technical field of flame-retardant macromolecules, and particularly discloses a melamine cyanurate derivative covalent triazine framework flame retardant, a preparation method and application thereof. The preparation method comprises the steps that firstly, phosphorus-chlorine groups of phenyl phosphoryl dichloride react with amine in melamine cyanurate, so that hydrogen bonds in the melamine cyanurate are reduced, and the purpose of reducing the group polarity is reached, then on the basis, the preparation method of the melamine cyanurate derivative covalent triazine framework flame retardant is developed, and the melamine cyanurate derivative covalent triazine framework flame retardant is applied to flame-retardant epoxy resin.

The invention discloses a coal mine roadway spraying material, relates to the technical field of new materials for mines, and comprises two layers of a base layer and a surface layer, and the base layer is made of the following raw materials in parts by weight: Portland cement 25-35 parts, pulverized coal 25-35 parts of ash, 8-12 parts of clay, 4-8 parts of latex powder, 10-15 parts of fiber reinforced materials, 0.2-0.3 parts of styrene-acrylic emulsion, 0.1-0.2 parts of polyvinyl alcohol, 1-2 parts of water glass and 35-42 parts of water, the surface layer is a polyurethane layer, which has excellent support performance, anti-corrosion and anti-leakage, and can further ensure the safe production of coal mines.

The invention belongs to the technical field of adhesives, in particular to a method for preparing a flame-retardant and waterproof adhesive for corrugated cartons, which specifically includes the following steps: (1) preparing a silicone modified emulsion; (2) preparing a white prepolymerized emulsion; ( 3) Preparation of acrylic modified flame retardant silicone emulsion (4) Put 110~120 parts of acrylic modified flame retardant silicone emulsion into a high-speed mixer, add 1.5~2.3 parts of carnallite powder and 24~27 parts of polyhalite powder , 5~7 parts of flame retardant, stir and mix evenly. The adhesive prepared by the present invention is transparent, has strong adhesion, good stability, water-based adhesive bonding, quick-drying, acid and alkali resistance, does not contain organic solvents, is non-toxic, tasteless, non-flammable, environmentally friendly, non-polluting, and can Realize pollution-free production. It is suitable for cartons without coating and glazing, and has a strong protective effect on corrugated cartons.

The invention discloses a preparation method of a phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material, which comprises the following steps: in the presence of a solvent and an initiator, carrying out free-radical polymerization on glycidyl methacrylate, phosphorus-containing monomer and acryloyloxypropyl heptaisobutyl POSS (polyhedral oligomeric silsesquioxane) to obtain a phosphorus-containing POSS-base compound, uniformly mixing an epoxy resin and the phosphorus-containing POSS-base compound at certain temperature, adding a curing agent, evenly mixing, pouring into a mold, and removing bubbles in vacuum; and finally, curing, and demolding to obtain the phosphorus-containing flame-retardant organic-inorganic hybrid silsesquioxane / epoxy resin hybrid material. The phosphorus-containing flame-retardant POSS / epoxy resin hybrid material is free of halogen, has the advantages of no toxic or side effect, simple technique, favorable flame retardancy, low manufacturing cost and high transparency, and can be widely used in the fields of manufacturing of optical components, LED (light-emitting diode) packaging and the like.

The invention belongs to the technical field of fireproof material development, and specifically relates to a composite flame retardant and a method for preparing a flame retardant fiberboard. A composite flame retardant is composed of aluminum hydroxide, borax and sodium silicate, and the mass ratio of aluminum hydroxide, borax and sodium silicate in the composite flame retardant is 4‑6:3‑5:2 ‑4. The composite flame retardant of the invention has the advantages of good flame retardant effect, low toxicity, good smoke suppression and environmental friendliness, can remarkably improve the flame retardant performance of the fiberboard, is cheap, and is suitable for industrial production of the flame retardant fiberboard.

A phosphorus-containing silicon reactive macromolecular flame retardant and its preparation method and application relate to flame retardants. React methacryloyl chloride and p-phenylenediamine under the conditions of a solvent and an acid-binding agent, remove the acid-binding agent salt produced by the reaction by suction filtration under reduced pressure, and purify the crude product by washing with water, rotary evaporation and drying to obtain 4- Methacrylamidoaniline; hydroxyethyl methacrylate and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide in carbon tetrachloride, solvent and acid-binding agent Under reduced pressure, the acid-binding agent salt produced by the reaction was removed by suction filtration under reduced pressure, and the crude product was purified by water washing, rotary evaporation and drying to obtain a phosphorus-containing monomer; Amidoaniline, phosphorus-containing monomers and methacryloxypropyl heptaisobutyl POSS are prepared by radical polymerization to obtain phosphorus-containing silicon reactive macromolecule flame retardants. It can be used in the preparation of flame retardant epoxy resin.