38results about How to "Prevent molten dripping" patented technology

A process of manufacturing the resin compositon and a method of preventing the melt dripping during combustion of the resin composition. The flame retardancy of the above aromatic polycarbonate resin composition comprising the fluorine-containing organic metal salt compound is improved. An aromatic polycarbonate resin composition containing a fluorinated organometal salt compound. The resin composition has improved flame retardancy. The resin composition comprises (1) 100 parts by weight of an aromatic polycarbonate resin (ingredient (A)), (2) 0.005-0.6 parts by weight of a fluorinated organometal salt (ingredient (B)) having a fluoride ion content as measured by ion chromatography of 0.2-20 ppm by weight, and (3) at least one ingredient selected from the group consisting of a flame retardant (ingredient (C)), fatty acid ester (ingredient (D)), ultraviolet absorber (ingredient (E)), polytetrafluoroethylene having fibril-forming ability (ingredient (F)), filler (ingredient (G)), silicate mineral (ingredient (H)), and titanium dioxide pigment (ingredient (I)). Also provided is a method of preventing a resin composition from melting / dripping upon combustion.

The invention discloses a high weather resistant, halogen-free and flame retardant PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene) alloy material special for an outdoor telecommunication box and a preparation method thereof. The PC / ABS alloy material is prepared from the following raw materials by weight percentage: 60%-80% of polycarbonate resin; 0.1%-10% of acrylonitrile-butadiene-styrene resin; 0.1%-5% of a compatibilizer; 2%-10% of triphenyl phosphate; 2%-10% of resorcinol (diphenyl phosphate); 0.1%-1% of an anti-dripping agent; 0.1%-2% of a light stabilizer; and 0.1%-2% of assistants. According to the invention, the PC and ABS resin with good weather resistance are adopted as the matrix, and through synergy of the compatilizer, the halogen-free flame retardants and the light stabilizer, the halogen-free and flame retardant PC / ABS alloy material with high heat resistance and high performance can be obtained, and can be widely used in the communications industry, the automobile industry, building materials, decoration materials, cables and the electrical industry. The preparation method of the alloy material adopts existing equipment, is simple to operate, and is suitable for industrialized production.

The invention relates to a high-temperature-resistant soft bulk-shielding instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are twisted to form twisted wire pairs, and the twisted wire pairs are stranded to form a cable core; the periphery of the cable core is successively wrapped with a copper foil polyester composite tape shielding layer and a polyester tape; and the periphery of the polyester tape is successively provided with an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 parts of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 parts of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention discloses a halogen-free flame-retardant cold-resistant polycarbonate alloy which comprises the following components in parts by weight: 75-93 parts of PC resin, 5-10 parts of a cold-resistant toughening agent, 1.1-5.5 parts of a flame retardant, 0.5-5 parts of a synergistic flame retardant, 0.4-2 parts of an antioxidant, 0.2-0.5 part of an ultraviolet light absorber, and 0.2-0.6 part of an anti-dripping agent. The product disclosed by the invention has good flame retardancy, the flame retardancy of a sample strip with the thickness of 1.5 mm / 3.0 mm reaches the UL94V-0 level, the use of polytetrafluoroethylene can prevent the melting and dripping of the product and can improve the flame retardancy of the product, the fire retardant consumption is reduced to further ensure that the flame retardancy of the product reaches the UL94V-0 level, the production cost of the product is reduced, and the competitiveness of the product is improved; besides, other mechanical properties of the product are not affected in case of higher impact strength, and the overall performance is excellent; the product has the characteristics of good low temperature resistance and good processing property. The alloy material is applicable to the fields of industry, communications and transport, military industry, aerospace and the like.

The invention discloses chemical crosslinking polyolefin insulating rubber for an offshore oil gas engineering cable in the field of cables and a manufacturing method. The raw materials include 12 parts of ethylene / vinyl acetate copolymer, 6 parts of HDPE (high-density polyethylene), 2 parts of ethylene / methacrylic acid copolymer, 0.5-1 part of crosslinking agent DCP (dicumyl peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 part of antioxidant DNP (N,N'-di-2-naphthyl-p-phenylenediamine), 0.2-1 part of stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus and 0.05-0.1 part of ultraviolet absorbent UV-326. The method comprises the following steps of: firstly adding the ethylene / vinyl acetate copolymer, the HDPE and the ethylene / methacrylic acid copolymer, and uniformly plastifying and mixing; adding the antioxidant, the ultraviolet adsorbent and flame retardant, and mixing uniformly before blanking; adding a lubricant and the crosslinking agent and mixing uniformly; and performing triangle packaging on the mixed glue, thinning for 4-6 times, and cutting and cooling for use. The insulating rubber has high heat resistance level and excellent ultraviolet resistance, seawater moisture erosion resistance and oil aging resistance.

The present invention relates to a flame retardant alkyl dimethoxyphosphine heterocyclic methyl silicate compound and a preparation method thereof. The structure of the compound is shown in the following formula: where R=methyl, ethyl, propyl or butyl base. The preparation method is: under nitrogen protection, control the molar ratio of 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane to alkyltrimethoxysilane to be 1:1 -1:1.5, under the action of catalyst, heat to reflux, at 100-180°C, reflux and keep warm for 10-20h, after purification, get alkyl dimethoxyphosphine heterocyclic methyl silicate. The product of the invention is suitable as a flame retardant for materials such as polyester PBT, PET, polyurethane, unsaturated resin, epoxy resin, etc.; and the production process is simple, equipment investment is small, and industrial production is easy to realize.

The invention relates to an alkyl dimethoxy silicic phosphine heterocyclic methyl ester compound and a preparing method thereof. The structure of the compound is shown in the following formula (see the formula in description), wherein R represents a methyl, or ethyl, or propyl or butyl group. The preparing method includes the steps that under protection of nitrogen, the molar ratio of 4-ethyl-2,6,7-trioxa-1-phosphine heterobicyclic [2.2.2] octane to alkyl trimethoxy silane is controlled to be 1:1-1:1.5, under the action of a catalyst, 4-ethyl-2,6,7-trioxa-1-phosphine heterobicyclic [2.2.2] octane and alkyl trimethoxy silane are heated to reflux and react for 10-20 h at the temperature of 100 DEG C-180 DEG C on the reflux and heat-preserving conditions, and alkyl dimethoxy silicic phosphine heterocyclic methyl ester is obtained through purification. The alkyl dimethoxy silicic phosphine heterocyclic methyl ester compound is suitable for serving as fire retardant of polyester PBT, PET, polyurethane, unsaturated resin, epoxy resin and the like. The production process is simple, equipment investment is small, and industrial production is easy to realize.

The invention relates to a method for preparing a flame retardant organosilicon cyclic phosphine compound. The structure of the compound is shown in the following formula: in the formula, R=methyl, ethyl, propyl or butyl. The preparation method is: replace the air in the reactor with hydrogen chloride absorption device with nitrogen, alkyl trichlorosilane and 1-oxygen-1-methyl-4-ethyl-4-hydroxymethyl-2, 6- Dioxa-1-phosphorinane is reacted in an organic solvent with a molar ratio of 1:3-1:3.5, reacted at 80-150°C for 10-18h, and after the hydrogen chloride is released, it is purified to obtain Organosilicon phosphine compounds. The product of the present invention has high flame retardant efficiency, and also has the effect of charring and anti-dripping, and is suitable for use as a flame retardant for polyester PBT, PET, PS, PP, PC, ABS and other materials; and the production process is simple, the equipment investment is small, and it is easy to use. Realize industrialized production.

The invention relates to a high-temperature-resistant soft non-shield instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a 0.35-2.5mm2 tin-plated annealed stranded copper conductor to form an insulation wire core; every two insulation wire cores are twisted to form twisted wire groups, and all the twisted wire groups are stranded to form a cable core; an inner sheath is extruded at the periphery of the cable core; the periphery of the inner sheath is coated with a copper alloy wire weaving armor layer; the periphery of the copper alloy wire weaving armor layer is wrapped with a water-proof wrapping tape; and an outer sheath is extruded at the periphery of the water-proof wrapping tape. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention relates to a fire retardant - phenyl tri-(phosphonia cyclomethoxy) silane compound and a preparation method thereof. The structure of the compound is shown in the following formula (please see the specifications). According to the preparation method, under the protection of nitrogen, the molar ratio of phenyl trimethoxy silane to 4-ethyl-2,6,7-trioxa-1-phosphonia bicyclo-[2.2.2] octane is controlled between 1 to 3 and 1 to 3.3, the temperature is raised to the level between 130 DEG C and 200 DEG C under the action of catalysts and maintained for reaction for 15-22h, and purification is conducted to obtain phenyl tri-(phosphonia cyclomethoxy) silane. The product is stable in performance, good in fire retarding effect, capable of preventing melting drips and suitable for being used as the fire retardant for nylon, polyester PBT, PET, polyurethane, PC, ABS and other materials; moreover, the production process is simple, equipment investment is little, industrial production is easy, and a good development and application prospect is obtained.

The invention relates to a preparation method of an alkyl - dimethoxy (phosphorus heterocycle) silane compound as a fire retardant. The structure of the compound is shown in the following formula (as shown in the description), wherein R is equal to methyl, ethyl, propyl or butyl. The preparation method comprises the following steps of using nitrogen for replacing air in a reactor, controlling the molar ratio of 1-oxo methyl-4-ethyl -4-methylol-2,6-dioxa-1-phosphorus heterocycle hexane to alkyl group trimethoxysilane to be 1:1 to 1:1.4, and performing a reaction at 80-130 DEG C in an organic solvent; controlling the top temperature of a fractionating column to be equal to or lower than 65 DEG C, and performing a fractional distillation reaction for 6-13 hours until no methanol is generated; and through purification treatment, obtaining alkyl-dimethoxy (phosphorus heterocycle) silane. The product disclosed by the invention is high in flame resistant efficiency, good in carbon forming performance, good in plasticity, and suitable for being used as the fire retardant of materials of polyester PBT, PET, polyurethane, unsaturated resins, epoxy resins, polyvinyl chloride and the like. The production technology is simple, the equipment investment is low, and the industrialized production is easy to realize.

The invention relates to a high-temperature-resistant soft independent shield instrument cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; every two insulation wire cores are twisted to form twisted wire pairs, and each twisted wire pair is successively wrapped with a copper foil polyester composite tape shielding layer and a polyester tape at the periphery, and then the twisted wire pairs are stranded to form a cable core; and the cable core is successively provided with an extruded inner sheath, a clad copper alloy wire weaving armor layer, a wrapped water-proof wrapping tape, and an extruded outer sheath at periphery. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076; 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention relates to a methyl phenyl bis(phosphorous heterocycle methoxy group) silane compound and a preparation method thereof. The structural formula of the compound is shown in the following specifications. The preparation method includes the steps that under protection of nitrogen, the molar ratio of methyl phenyldimethoxysilane to 4-ethyl-2,6,7-trioxa-1-phosphabicyclo (2.2.2) octane is 1:2-1:2.5, under the action of catalyst, temperature is increased to 120 DEG C-180 DEG C, thermal-insulation reaction is performed for 13-19 h, and through purification, the methyl phenyl bis(phosphorous heterocycle methoxy group) silane product is obtained. The compound is suitable for being used as flame retardant of PBT, PET, nylon, PC, polyurethane and furan resin. The production technology is simple, the requirement for environmental friendliness is met, industrialized production is easy to achieve, and good development and application prospects are achieved.

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 high-temperature-resistant soft control cable for maritime oil and gas engineering and a manufacturing method thereof. The cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a 0.35-2.5mm<2> tin-plated annealed stranded copper conductor to form an insulation wire core; a plurality of insulation wire cores are twisted to the right at 20-24 times of standing lay ratio to form a cable core; an inner sheath is extruded at the periphery of the cable core; the inner sheath inner sheath inner sheath is coated with a copper alloy wire weaving armor layer at the periphery; the periphery of the copper alloy wire weaving armor layer is wrapped with a water-proof wrapping tape; and an outer sheath is extruded at the periphery of the water-proof wrapping tape. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076; 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of aluminum hydroxide, 0.6-1 part of red phosphorus, and 0.05-0.1 part of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.

The invention relates to a dodecyl dimethyoxy phosphonic heterocyclic methyl ester compound as a fire retardant and a preparation method thereof. The structure of the compound is shown in the following formula (as shown in the description). The preparation method comprises the following steps of under nitrogen protection, controlling the molar ratio of 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane and dodecyl trimethoxysilane to be 1:1 to 1:1.4, and under the action of a catalyst, enabling the temperature to rise to 130-180 DEG C; and through purification treatment, obtaining products of dodecyl dimethyoxy phosphonic heterocyclic methyl ester. The dodecyl dimethyoxy phosphonic heterocyclic methyl ester compound disclosed by the invention is suitable for being used as a fire retardant of materials, polyvinyl chloride, polyurethane, unsaturated resins, epoxy resins, furan resins, polyvinyl alcohol and the like, is simple in production technology and low in equipment investment, and industrialized production is easy to realize.

The invention relates to the technical field of paint, in particular to a preparation method of flame-retardant polyurea elastomer paint. The polyurea elastomer paint is prepared from a component A and a component B. The preparation method comprises the following steps: (1) dehydrated siloxane polyether glycol, diisocyanate and a diluent are mixed uniformly in a reaction kettle, and then subjectedto a reaction for 2-4 hours at 80-95 DEG C, and the component A is obtained; (2) dehydrated amino-terminated polyether and a dehydrated amine chain extender are uniformly mixed with organic aluminumhypophosphite, polytetrafluoroethylene, ammonium polyphosphate, dipentaerythritol and additives in a reaction kettle, stirring is performed at 60-120 DEG C for 1-2 h, and the component B is obtained.The polyurea elastic resin prepared from a flame retardant and polyurea resin by compounding has excellent flame retardancy and thermal stability.

The invention relates to the technical field of coatings, in particular to a halogen-free flame retardant and a flame-retardant polyurea elastomer coating. The halogen-free flame retardant comprises organic aluminium hypophosphite, polytetrafluoroethylene, ammonium polyphosphate and dipentaerythritol. The halogen-free flame retardant is compounded by organic aluminium hypophosphite, polytetrafluoroethylene powder, ammonium polyphosphate and dipentaerythritol. After the halogen-free flame retardant is combusted, a large amount of carbide is generated, and a carbonization layer is formed to prevent a matrix from continuing to be combusted; the halogen-free flame retardant can also prevent melting and dripping, and further has the advantages of being good in thermal stability and low in smokegeneration amount.

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 methyl phenyl bis(phosphorous heterocycle methoxy group) silane compound and a preparation method thereof. The structural formula of the compound is shown in the following specifications. The preparation method includes the steps that under protection of nitrogen, the molar ratio of methyl phenyldimethoxysilane to 4-ethyl-2,6,7-trioxa-1-phosphabicyclo (2.2.2) octane is 1:2-1:2.5, under the action of catalyst, temperature is increased to 120 DEG C-180 DEG C, thermal-insulation reaction is performed for 13-19 h, and through purification, the methyl phenyl bis(phosphorous heterocycle methoxy group) silane product is obtained. The compound is suitable for being used as flame retardant of PBT, PET, nylon, PC, polyurethane and furan resin. The production technology is simple, the requirement for environmental friendliness is met, industrialized production is easy to achieve, and good development and application prospects are achieved.

The invention relates to the technical field of a flame-retardant material, in particular to a flame-retardant type electromobile plastic shell. The flame-retardant type electromobile plastic shell comprises a plastic matrix, primer and a flame-retardant coating sequentially from top to bottom; the flame-retardant coating is prepared from polyurea resin; the polyurea resin comprises a component Aand a component B; the component A is prepared from a raw material composition 1; the raw material composition 1 comprises siloxane polyether polyol, diisocyanate and a diluent; the component B is prepared from a raw material composition 2; the raw material composition 2 comprises amine-terminated polyether, an amine chain extender, a composite flame retardant and an additive; and the composite flame retardant comprises organic aluminum hypophosphite, polytetrafluoroethylene, ammonium polyphosphate and dipentaerythritol. The surface of the plastic matrix is coated with the flame-retardant coating containing a flame retardant, so that the flame retardance of the plastic matrix is improved, the surface smoothness of the plastic matrix is improved and later cleaning is facilitated.

The invention relates to a methylphenyl methoxy silicic acid phosphine heterocylic methyl ester compound as a fire retardant and a preparation method thereof. The structure of the compound is shown in the following formula (as shown in the description). The preparation method comprises the following steps of under nitrogen protection, controlling the molar ratio of 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane to methylphenyl dimethoxysilanes to be 1:1 to1:1.4; under the action of a catalyst, enabling the temperature to rise to 120-170 DEG C, and performing a heat insulating reaction for 11-17 hours; and through purification treatment, obtaining methylphenyl methoxy silicic acid phosphine heterocylic methyl ester. The product disclosed by the invention is suitable for being used as the fire retardant of materials of unsaturated resins, polyvinyl chloride, polyurethane, epoxy resins, furan resins and the like. The production technology is simple, the equipment investment is low, and the industrialized production is easy to realize.

The invention relates to a preparing method for a phosphorus-silicon synergistic flame retardant phenyl dimethoxy (phosphor heterocycle methoxyl) silicane compound. The structure of the compound is as shown in the description. The preparing method comprises the steps that under protection of nitrogen, the mole ratio of 1-oxo-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphorinane to phenyl trimethoxy silane is controlled to be 1:1-1:1.4, organic solvent is added, temperature is raised to 100 DEG C-140 DEG C, the temperature of a fractional distillation column top is controlled to be not higher than 65 DEG C, generated methyl alcohol is distilled, the fractional distillation reaction is carried out for 5-9 h, the reaction is not stopped until the quantity of methyl alcohol distilled reaches the theory amount, and purification is carried out to obtain phenyl dimethoxy (phosphor heterocycle methoxyl) silicane. The compound is suitable for serving as flame retardant of materials such as polyvinyl chloride, polyurethane, unsaturated polyester resin, epoxy resin, furan resin and polyvinyl alcohol, the production technology is simple, equipment investment is small, industrialized production is achieved easily, and the compound has good application and development prospects.

The invention relates to an organic silicon flame-retardant carbon-forming agent 1-methyl-4-ethyl-1-silicon hetero-2,6,7-trioxygen hetero double-cycle[2,2,2]-octane compound and a preparation method thereof. The structure of the compound is shown as the following formula in the specification. The preparation method comprises the following step of reacting methyl trichlorosilane or methyltrimethoxy silane with trimethylolpropane in an organic solvent to prepare the 1-methyl-4-ethyl-1-silicon hetero-2,6,7-trioxygen hetero double-cycle[2,2,2]-octane. The organic silicon flame-retardant carbon-forming agent belongs to a halogen-free and non-toxic flame-retardant carbon-forming agent, has high flame-retardant performance and high carbon-forming property, can effectively prevent materials from melting and dropping off, has stable physical and chemical properties, high compatibility with a macromolecular material, low cost and a simple process, and is easy in industrialized production.

The invention relates to a preparation method of a flame retardant dodecyl dimethoxy (phosphacyclomethoxy) silane compound. The structure of the compound is shown in the following formula: the preparation method is: under the protection of nitrogen, the In a reactor with a high-efficiency fractionation device, control 1-oxygen-1-methyl-4-ethyl-4-hydroxymethyl-2, 6-dioxa-1-phosphorinyl and dodecyl The molar ratio of trimethoxysilane is 1:1-1:1.4, adding an organic solvent, raising the temperature to 90-140°C, and fractionally distilling off the generated methanol. The fractional distillation reaction lasts for 6-11 hours until no methanol is produced, and is purified to obtain dodecane Dimethoxy (phosphacyclomethoxy) silane; the product of the present invention is suitable for flame retardants of materials such as polyvinyl chloride, polyurethane, unsaturated resin, epoxy resin, furan resin, polyvinyl alcohol, and production The process is simple, the equipment investment is small, the industrialized production is easy to realize, and the method has good application and development prospects.

The invention relates to a preparation method of an aryl silicon cyclic phosphate compound as a fire retardant. The structural formula of the compound is as shown in the specification. The preparation method comprises the following steps: replacing the air in a reactor with a hydrogen chloride absorption device with nitrogen; reacting phenyl trichlorosilane with 1-oxy-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphorinane in an organic solvent at 100-150 DEG C for 13-21h, wherein the mole ratio of the two substances is 1:3 to 1:3.8; and after the hydrogen chloride is all released, purifying the product to obtain the aryl silicon cyclic phosphate compound. The fire retardant is stable in physical and chemical performance, high in decomposition temperature, good in fire retarding effect, simple in preparation process, low in equipment investment and easy to produce in large scale, is suitable for being as a fire retardant of the materials such as polyester PBT, PET, polyurethane, nylon, epoxy resin and polyvinyl chloride, and has good application and development prospects.

The invention relates to a phosphorus and silicon synergistic flame retardant phenyl dimethoxy silicate phosphonic heterocyclic methyl ester compound and a preparation method thereof. The structural formula of the compound is shown in the specification. The preparation method comprises the steps that under the protection of nitrogen, the molar ratio of 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane and phenyl trimethoxy silane ranges from 1:1 to 1:1.4, under the action of a catalyst, the temperature is increased to range from 120 DEG C to 180 DEG C, heat-retaining reaction is conducted for 12-17 h, and a product of phenyl dimethoxy silicate phosphonic heterocyclic methyl ester is obtained after purification treatment is conducted. The phenyl dimethoxy silicate phosphonic heterocyclic methyl ester compound is suitable for being used for a flame retardant of materials such as polyester PBT, PET, polyvinyl chloride, PC, polyurethane, unsaturated resin and epoxy resin, the production technology is simple, the equipment investment is low, industrial production is easy to achieve, and a good development and application prospect is achieved.

The invention relates to a preparation method of an aryl silicon cyclic phosphate compound as a fire retardant. The structural formula of the compound is as shown in the specification. The preparation method comprises the following steps: replacing the air in a reactor with a hydrogen chloride absorption device with nitrogen; reacting phenyl trichlorosilane with 1-oxy-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphorinane in an organic solvent at 100-150 DEG C for 13-21h, wherein the mole ratio of the two substances is 1:3 to 1:3.8; and after the hydrogen chloride is all released, purifying the product to obtain the aryl silicon cyclic phosphate compound. The fire retardant is stable in physical and chemical performance, high in decomposition temperature, good in fire retarding effect, simple in preparation process, low in equipment investment and easy to produce in large scale, is suitable for being as a fire retardant of the materials such as polyester PBT, PET, polyurethane, nylon, epoxy resin and polyvinyl chloride, and has good application and development prospects.

The invention relates to a preparing method for a phosphorus-silicon synergistic flame retardant phenyl dimethoxy (phosphor heterocycle methoxyl) silicane compound. The structure of the compound is as shown in the description. The preparing method comprises the steps that under protection of nitrogen, the mole ratio of 1-oxo-1-methyl-4-ethyl-4-hydroxymethyl-2,6-dioxa-1-phosphorinane to phenyl trimethoxy silane is controlled to be 1:1-1:1.4, organic solvent is added, temperature is raised to 100 DEG C-140 DEG C, the temperature of a fractional distillation column top is controlled to be not higher than 65 DEG C, generated methyl alcohol is distilled, the fractional distillation reaction is carried out for 5-9 h, the reaction is not stopped until the quantity of methyl alcohol distilled reaches the theory amount, and purification is carried out to obtain phenyl dimethoxy (phosphor heterocycle methoxyl) silicane. The compound is suitable for serving as flame retardant of materials such as polyvinyl chloride, polyurethane, unsaturated polyester resin, epoxy resin, furan resin and polyvinyl alcohol, the production technology is simple, equipment investment is small, industrialized production is achieved easily, and the compound has good application and development prospects.

The invention relates to a high-temperature-resistant soft power cable for maritime oil and gas engineering and a manufacturing method thereof. The power cable is characterized in that a chemical cross-linked polyolefin insulation layer is extruded at the periphery of a tin-plated annealed stranded copper conductor to form a power cable insulation wire core; a plurality of insulation wire cores are stranded to form a cable core; an inner sheath is extruded at the periphery of the cable core; the periphery of the inner sheath inner sheath inner sheath is coated with a copper alloy wire weaving armor layer; the periphery of the copper alloy wire weaving armor layer is wrapped with a water-proof wrapping tape; and an outer sheath is extruded at the periphery of the water-proof wrapping tape. The insulation layer is prepared from the following raw material components: 12 parts of ethylene / vinyl acetate copolymer, 6 parts of high density polyethylene, 2 parts of ethylene-methacrylic acid copolymer, 0.5-1 part of cross-linking agent DCP (Dicumyl Peroxide), 0.4-0.9 part of antioxidant 1076, 0.2-0.4 part of antioxidant DNP, 0.2-1 part of lubricant stearic acid, 25-30 parts of flame retardant aluminum hydroxide, 0.6-1 part of flame retardant red phosphorus, and 0.05-0.1 parts of ultraviolet ray absorber UV-326. The insulation layer of the cable is excellent in high-temperature resistance and ageing resistance, and long in service life.