57results about How to "Adapt to high temperature processing" patented technology

The invention relates to a triazine macromolecular halogen-free flame-retardant char-forming agent compound and a preparation method thereof. The structure of the compound is as shown in the description, wherein n is larger than 1, X is alcohol amine, and Y is dialkylamine. The preparation method comprises the steps that under the stirring condition, an equimolar amount of alcohol amine is added into a solution of triglycidyl isocyanurate, the temperature is increased to a certain value, and heat preservation reaction is conducted for a period of time to enable the pH of the solution to range from 7 to 8; a certain molar of dialkylamine is added, the temperature is increased to a certain value, and heat preservation reaction is conducted for a period of time to enable the pH of the solution to range from 7 to 8; cooling is conducted, suction filtration (recycling of solvent), water washing, drying and smashing are conducted, and the triazine macromolecular flame-retardant char-forming agent product is obtained. The triazine macromolecular halogen-free flame-retardant char-forming agent is an excellent flame-retardant char-forming agent, has a char-forming anti-dropping effect, is good in compatibility with high molecular materials and excellent in processability and can be used as the flame-retardant char-forming agent of materials such as polyethylene (PE), polypropylene (PP) and silicone rubber; the raw materials of the char-forming agent are low in price and easy to obtain, the production cost is low, the equipment investment is low, the production technology is simple, and scale production is easy.

The invention relates to a fire retardant tribromophenoxy tri(dichloro propanolato)silane compound and its preparation method. The structure of the compound is as shown in the formula in the specification, wherein R2=CH2Cl when R1=H; and R2=H when R1=CH2Cl. The preparation method comprises the following steps: dropwisely adding equimolar dichlorohydrin into a silicon tetrachloride organic solution to react at 35 DEG C for 1h, adding equimolar tribromophenol to react at 50-80 DEG C for 2-5h, dropwisely adding double mole times of dichlorohydrin to react at 50-70 DEG C for 3-6h, and carrying out underpressure distillation to remove a solvent so as to obtain a product tribromophenoxy tri(dichloro propanolato)silane. The product is an excellent flame retardation plasticizer, has charcoal-forming and antidrip effects, and can be used as a fire retardant of materials such as polyvinyl chloride, nonsaturated polyester, polyurethane and epoxy resin, etc. Raw materials of the product are cheap and easily available. Production costs are low. Equipment investment is little. The production technology is simple. The preparation method is easy for large-scale production.

The present invention relates to a kind of preparation method of flame retardant methylphenylmethoxy (phosphacyclomethoxy) silane compound, the structure of the compound is shown in the following formula: the preparation method is: under the protection of nitrogen, add an organic solvent, Then add 1-oxygen-1-methyl-4-ethyl-4-hydroxymethyl-2, 6-dioxa-1-phosphorinane and methylphenyldimethoxysilane to control its The molar ratio is 1:1-1:1.4, the temperature is raised to 100-140°C, the temperature at the top of the fractionation column is controlled not to be higher than 65°C, and the generated methanol is fractionated, and the fractionation reaction is 6-10h until the fractionated methanol reaches the theoretical amount. The reaction is stopped, and after purification treatment, methylphenylmethoxyl (phosphacyclomethoxyl) silane is obtained; the product of the present invention has high flame retardancy, good compatibility with macromolecules, and is suitable for use as polyvinyl chloride, polyurethane, Flame retardant for polyester, unsaturated resin, epoxy resin, furan resin, polyvinyl alcohol and other materials. The preparation process is simple, the equipment investment is small, the large-scale production is easy, and the application and development prospects are very good.

The invention relates to a flame retardant tri-(tribromophenoxy) dichloro propoxy silane compound and a preparation method thereof. A structural formula of the compound is as follows as shown in the specification, wherein when R1 is H, R2 is CH2Cl, and when R1 is CH2Cl, R2 is H. The preparation method comprises the steps that equimolar dichloropropanol is dropwise added to an organic solution of silicon tetrachloride, and reacts at 35 DEG C for 1h; three times of mole of tribromphenol is added, and reacts at 80-110 DEG C for 7-9h; a solvent is removed by reduced pressure distillation; and tri-(tribromophenoxy) dichloro propoxy silane is obtained. Tri-(tribromophenoxy) dichloro propoxy silane is an excellent antiflaming plasticizer, has charring and dripping prevention functions, has good compatibility with a high polymer material, and can serve as a flame retardant of polyvinyl chloride, unsaturated polyester, polyurethane, epoxy resin and the like, raw materials of tri-(tribromophenoxy) dichloro propoxy silane are low in cost and easy to obtain, the production cost is low, the equipment investment is low, a production technology is simple, and the scale production is facilitated.

The invention relates to a flame retardant tri(dibromopropyl)tribromophenyl silicate esterification compound and a preparation method thereof. The structure of the compound is shown in the specification, wherein R2=CH2Br if R1=H; and R2=H if R1=CH2Br. The preparation method comprises the following steps of: dropwise adding equimolar dibromopropyl alcohol into an organic solvent of silicon tetrachloride at a temperature below 8 DEG C, and reacting for 1 hour at 35 DEG C; adding equimolar tribromophenol, and reacting for 2-4 hours at 50-80 DEG C; dropwise adding dibromopropyl alcohol of twice molar weight, and reacting for 3-5 hours at 50-70 DEG C; and performing reduced-pressure distillation to remove the solvent to obtain the product tri(dibromopropyl)tribromophenyl silicate. The product is an excellent flame-retardant plasticizer with a charring anti-drop effect and can be used as a flame retardant for the materials such as polyvinyl chloride, unsaturated polyester, polyurethane, epoxy resin and the like; and moreover, the flame retardant has the advantages of cheap and easily-available raw materials, low production cost, low equipment investment and simple production technology, and is easy to produce in a large scale.

The invention relates to a silicic acid-3-(3-bromophenyl)-chloropropyl ethyl ester compound used as a fire retardant and the preparation method thereof. The structural formula of the compound is shown in the specification. The preparation method comprises the following steps: filling ethylene oxide of which the mole is same as that of silicon tetrachloride in silicon tetrachloride organic solution at the temperature of below 20 DEG C, adding tribromophenol of which is three times the mole of silicon tetrachloride, carrying out the thermal reaction for 6-10 hours at the temperature of 100-120 DEG C, and reducing pressure and distilling to remove solvent and a small amount of low boiling point substances to obtain the silicic acid-3-(3-bromophenyl)-chloropropyl ethyl ester compound. The silicic acid-3-(3-bromophenyl)-chloropropyl ethyl ester compound is an excellent fire retardant plasticizer, has carbon-forming and anti-dripping functions and good compatibility with high polymer material, can be used as fire retardants made of polyvinyl chloride, unsaturated polyester, polyurethane, epoxy resin and the like, and is easy to access in raw material, low in production cost, small in equipment investment, simple in production technology, and easy for large-scale production.

The invention relates to a flame retardant tri(chloropropyl)tribromophenyl silicate esterification compound and a preparation method thereof. The structure of the compound is shown in the specification, wherein n is an integer from 0 to 3. The preparation method comprises the following steps of: controlling the temperature below 30 DEG C; dropwise adding equimolar epoxypropane into an organic solution of silicon tetrachloride, and adding equimolar tribromophenol; performing a thermal-insulation reaction at 50-70 DEG C for 2-4 hours; cooling to 40 DEG C; dropwise adding epoxypropane of a certain molar ratio, and performing a thermal-insulation reaction at 45-70 DEG C for 3-6 hours; distilling out excessive epoxypropane; and performing reduced-pressure distillation to remove the solvent and a few low-boiling point substances to obtain the product tri(chloropropyl)tribromophenyl silicate. The tri(chloropropyl)tribromophenyl silicate provided by the invention is an excellent flame-retardant plasticizer with a charring anti-drop effect and good compatibility with a high-molecular material, and can be used as a flame retardant for the materials such as polyvinyl chloride, unsaturated polyester, polyurethane, epoxy resin and the like; and moreover, the flame retardant has the advantages of cheap and easily-available raw materials, low production cost, low equipment investment and simple production technology, and is easy to produce in a large scale.

The invention relates to a dibutyl phenylphosphinate (PPDB) flame retardant composition and an application method thereof. The flame retardant composition is prepared by the steps of compounding one or two of PPDB, chlorinated paraffin-52 (short for CP52), tetrachloroethyl silicate (short for STCE), tetradichloropropyl silicate (short for STDE) or tridichloropropyl phenyl silicate (short for STDPE) according to any ratio, and then, uniformly mixing, wherein the weight parts of both PPDB and CP52 are larger than zero. The flame retardant composition provided by the invention has the advantages of synergistic effect among various elements, good compatibility with materials, high flame-retardant efficiency, low cost and the like, and can be used as a flame retardant for materials such as polyvinyl chloride, polyurethane, unsaturated resin, epoxy resin and the like so as to have favorable application prospects.

The invention relates to a method for preparing the flame-retardant agent of a methylphenyl silicic acid bis(phosphorous heterocyclic methyl) ester compound. The structure of the compound is as shown in the description. The preparation method includes the steps that nitrogen gas is used for replacing air in a reactor provided with an efficient fractionation device, the molar ratio of dimethoxymethylphenylsilane to 1-oxo-1-methyl-4-ethyl-4-methylol-2,6-dioxa-1- phosphorinane is controlled to be 1:2-1:2.6, the temperature is raised to 100-160 DEG C, the temperature of the top of a dephlegmator is controlled to be not higher than 65 DEG C, generated methyl alcohol is fractionated, a fractionation reaction is carried out for 9-17 hours, the reaction does not stop till the fractionated methyl alcohol reaches a theoretical amount, and methylphenyl silicic acid bis(phosphorous heterocyclic methyl) ester is obtained after purification. The flame-retardant agent is stable in structure performance, high in decomposition temperature and suitable for being used as flame retardancy of polyester PBT, PET, nylon, PC and other materials. The preparation technology is simple, equipment investment is little, large-scale production is easy, and application and development prospects are good.

The invention relates to a fire retardant di(tribromophenoxy)dihalidepropoxysilane compound and its preparation method. The structure of the compound is as shown in the formula in the specification, wherein R is 2-chloro-1-propyl, 1-chloro-2-propyl, 3-chloro-1-propyl, 2-bromine-1-propyl, 1-bromine-2-propyl or 3-bromine-1-propyl. The preparation method comprises the following steps: dropwisely adding equimolar halogenated propanol into a silicon tetrachloride organic solution to react at 30 DEG C for 1h, adding tribromophenol which accounts for two times larger than equimolar halogenated propanol to react at 60-90 DEG C for 4-6h, dropwisely adding equimolar halogenated propanol to react at 40-60 DEG C for 3-5h, and carrying out underpressure distillation to remove a solvent so as to obtain di(tribromophenoxy)dihalidepropoxysilane. The product has good flame retardation and plastification properties, has charcoal-forming and antidrip effects, and can be used as a fire retardant of materials such as polyvinyl chloride, nonsaturated polyester, polyurethane, epoxy resin and the like. Raw materials of the fire retardant are easily available; production costs are low; equipment investment is little; the technology is simple; and the preparation method is easy for large-scale production.

The invention relates to a diisopropyl phenylphosphinate (PPDI) flame retardant composition and an application method thereof. The flame retardant composition is prepared by the steps of compounding one or two of PPDI, chlorinated paraffin-52 (short for CP52), tetrachloroethyl silicate (short for STCE), tetradichloropropyl silicate (short for STDE) or tridichloropropyl phenyl silicate (short for STDPE) according to any ratio, and then, uniformly mixing, wherein the weight parts of both PPDI and CP52 are larger than zero. The flame retardant composition provided by the invention has the advantages of synergistic effect among various elements, good compatibility with materials, high flame-retardant efficiency, low cost and the like and can be used as a flame retardant for materials such as polyvinyl chloride, polyurethane, unsaturated resin, epoxy resin and the like so as to have favorable application prospects.