53results about How to "Play the role of synergistic flame retardant" patented technology

The invention relates to a high-performance halogen-free flame retardant ABS modified resin and a preparation method thereof. The resin comprises the following components with the content (in parts by weight): 100 ABS resin, 4-30 polyamide, 5-25 phosphate fire retardant, 0.1-0.5 anti-drippage agent, 5-10 toughening agent, 1-5 nano filler, 1-5 compatilizer, 0.2-1 antioxidant, 0.1-0.5 light stabilizer and 1-5 processing agent. Compared with the prior art, the invention has reasonable technique, and overcomes the defects of poor flame retardant property and low impact strength of the existing halogen-free flame retardant ABS; and the invention adopts a novel high-efficiency halogen-free flame retardant compounding synergism technology, a novel polyamide coal-forming agent, the high-efficiency synergism between organic and inorganic fire retardants, and the master batch method processing technique, thus endowing the resin with high fire resistance on the basis of improving the original good performances (especially the impact performance) of the ABS resin, and having wide application prospect.

The invention relates to a polyvinyl chloride cable material having excellent performances. The polyvinyl chloride cable material having excellent performances comprises: by weight, 100 parts of polyvinyl chloride resin, 25 parts of one or more inorganic filling materials, 4 parts of triphenyl phosphate, 10 parts of epoxy butyl oleate, 24 parts of aluminum hydroxide, 0.6 parts of an anti-oxidant 1010, 1.8 parts of an anti-oxidant 1024, 2 parts of magnesium oxide, 3 parts of zinc oxide, 2 parts of eleaostearic acid and 0.6 parts of an aluminate coupling agent. The polyvinyl chloride cable material having excellent performances has excellent weatherability, cold resistance, aging resistance, oxidation resistance and copper corrosion resistance.

The invention discloses a room-temperature vulcanized antiflaming single-component dealcoholization-type silicone rubber sealant and a preparation method thereof. The room-temperature vulcanized antiflaming single-component dealcoholization-type silicone rubber sealant comprises 40-60 parts of alpha, omega-divinyl polydimethylsiloxane (A), 5-15 parts of polydimethylsiloxane (B) the end group of which is hydrogen group, 1-5 parts of vinyltrimethoxysilane (C), 1-5 parts of platinum catalyst (D), 1-10 parts of gas phase method white carbon black (E), 15-30 parts of inorganic fire retardant (F), 5-10 parts of crosslinker (G), 2-8 parts of titanate catalyst (H), 1-5 parts of silane coupling agent (I) and 1-3 parts of hydroxyl and moisture scavenger (J). The preparation method comprises: evenly mixing components (A), (B) and (C) under the protection of N2; adding (D), reacting for 4 hours to finish blocking under the protection of N2; when the vacuum degree is more than -0.09, removing bubble for 10-30 minutes; successively adding components (F), (J) and (E); evenly mixing when the vacuum degree is more than -0.09; adding components (G), (H) and (I); and reacting for 30-60 minutes when the vacuum degree is more than -0.09.

The invention relates to a graphene/layered double hydroxide composite flame retardant and a preparation method of a polystyrene nanometer flame-retardant composite material. The preparation method comprises the following steps of: dissolving a carbon nanotube into graphene oxide colloid; stirring and performing ultrasonic dispersion until the materials are dispersed uniformly; adding M<2+> salt and Al<3+> salt; adding urea; performing a reflux reaction to obtain a graphene/carbon nanotube/layered double hydroxide composite assembling body; mixing the composite assembling body and polystyrene resin; and performing melt extrusion to obtain the polystyrene nanometer flame-retardant composite material. The graphene/carbon nanotube/layered double hydroxide composite assembling body is prepared by dispersing carbon nanotubes by a graphene oxide nanosheet, controlling the pH value of the solution by the urea and reducing the graphene oxide into the graphene. The polystyrene nanometer flame-retardant composite material prepared by the melt extrusion method has excellent flame resistance and mechanical properties.

The invention relates to a charring-boosting low-smoke zero-halogen nanometer flame-retardant composite material of an ethylene-vinyl acetate copolymer and a preparation method thereof, and specifically relates to a nanometer flame-retardant composite material of the ethylene-vinyl acetate copolymer based on a nanometer composite flame retardant and the preparation method thereof, belonging to the technical field of flame-retardant materials. The method comprises the following steps: melting and extruding the materials, including the ethylene-vinyl acetate copolymer, hydromagnesite, a compatilizer, a synergist, nanometer auxiliaries, processing agents, and the like, step by step in a high-shear twin-screw extruder in different charging sequences, and then pelletizing and performing injection molding, thereby acquiring the ethylene-vinyl acetate nanometer flame-retardant composite material. The ethylene-vinyl acetate composite material provided by the invention has the advantages that the flue gas release volume is relatively low, the condensation phase charring can be boosted, the charring process is improved, the charring quality is promoted, the flame retardant property is effectively improved, and the popularization and application values are better.

The invention provides a nano-palygorskite reinforced flame retarding epoxy resin composite material which disperses the nano-palygorskite into epoxy resin matrix by means of ultrasonic dispersion by mass ratio between 1:100 and 8:100 after surface treatment is carried out to the nano-palygorskite, then mix the obtained palygorskite epoxy resin mixture with a reactive-type flame retardant by the mass ratio between 100:5 and 100:30, and casting and curing are carried out. A plurality of P-N bond intermediates formed in the reactive-type flame retardant of the invention are phosphorylating agents better than routine phosphorus compounds, and water vapor generated from nano-palygorskite acting as a synergistic flame retardant during burning is in great favor for a phosphorous flame retardant, and the reinforcement of appropriate amount of nano-palygorskite compensates for the reduction of the mechanical property of the epoxy resin caused by adding the flame retardant to some extent, serving double effect of flame retardation and reinforcement, thus, the flame retarding epoxy resin composite material of the invention has the advantages of high oxygen index, good smoke suppression effect and excellent physical and mechanical properties.

The invention relates to a halogen-free flame-retardant transparent polycarbonate material and a preparation method thereof, and belongs to the technical field of flame-retardant macromolecule materials. The polycarbonate material comprises PC resin and a flame retardant composition. The flame retardant composition is prepared from a DOPO derivative with double P-C bond bridged chains and nano silica or nano silica sol through a solution blending or supercritical carbon dioxide blending method, so that the problem that the compatibility of phosphonate and high polymer materials is difficult is effectively solved; meanwhile flame-retardant elements of phosphorus and silicon are introduced, so that the flame-retardant property is improved, and the transparency of the PC resin cannot be influenced. The preparation method is simple, easy to operate and low in cost, and the obtained PC material is high in transparence, halogen-free, environment-friendly, and wide in adaptability, and can be widely applied to the fields of automobiles, electronic appliances, building materials, the military industry and the like.

The invention discloses weather-resistant and flame-resistant light-diffusion PC applicable to outdoor lampshades and a preparation method of the weather-resistant and flame-resistant light-diffusion PC. The weather-resistant and flame-resistant light-diffusion PC is prepared by, by weight percentage, 81.25-90.17% of PC, 5-15% of toughening agent, 0.8% of light diffusion agent, 1.5-2.5% of flame retardant, 0.4-0.6% of synergic-effect flame retardant, 0.1-0.5% of hydrolysis-resistant agent, 0.1-0.5% of anti-UV agent, 0.03-0.05% of pigment, 0.3% of antioxidant and 0.3% of dispersing agent. The light-diffusion PC has the advantages that the light-diffusion PC is good in flame-retardant effect and weather resistance, indoor and outdoor use requirements can be satisfied, the light-diffusion PC is high in light permeability, good in toughness and ideal in appearance color, and consumers' requirements on lamps can be satisfied.

The invention relates to a nylon 6 composite material, and especially relates to a halogen-free flame-retardation nylon 6 montmorillonite nanocomposite and a preparation method thereof. The preparation method comprises the following steps: modified organo montmorillonite is subjected to in situ polymerization with a halogen-free fire-retardant salt and caprolactam, and dispersed in the nylon 6 containing a fire retardant with a nano particles form. The flame-retardation composite material has the advantages of high efficiency oxygen permeability, less fire retardant amount, low cost, high flame retardation efficiency and high mechanical property. The halogen-free flame-retardation nylon 6 montmorillonite nanocomposite has the advantages of no toxicity, no harmful gas and no environment pollution after being combusted. Due to addition of organo montmorillonite, a unique lamellar and a char forming agent are combusted to form a charcoal layer to obstruct the contact of air and nylon 6, so that flame retardant synergism is realized.

The invention discloses a cross-linked type insoluble halogen-free flame retardant and a preparation method and application thereof, and belongs to the technical field of flame retardants. The flame retardant is a cross-linked polymer formed when a methylol group of tetrakis hydroxymethyl phosphonium sulfate, difunctional amine compounds with amido groups and trifunctional melamine react under the effect of a catalyst hexamethylenetetramine, wherein the phosphorus content is larger than or equal to 10%, the nitrogen content is larger than or equal to 25%, the decomposition temperature is larger than or equal to 300 DEG C, solubility in water at the temperature of 25 DEG C is smaller than 0.01 g per 100 ml, the weight loss rate is smaller than 0.05 g per 100 ml after hot water at the temperature of 100 DEG C is boiled for 2 hours, and the flame retardant is not dissolved in conventional solvent such as ethyl alcohol, acetone, methylbenzene, petroleum ether and ethyl acetate at a temperature within the boiling point range. The flame retardant is used for superfine fiber synthetic leather and textile polyurethane coatings; the horizontal burning rate of the flame retardant is far lower than the flame retardance requirement of superfine fiber synthetic leather in the industry for the horizontal burning rate of smaller than 10 cm/min.

The invention discloses antibacterial leather and a preparation method thereof. The leather takes organic silica gel as the main component, silver carboxymethyl chitosan serves as an antibacterial factor, modified nano-silica and modified layered bimetallic oxide serve as the flame retardant factors, by means of the synergistic effect of all components, such as a good combination effect of silvercarboxymethyl chitosan and a substrate, a synergistic flame retardant effect between the flame retardant factors, a bonding effect between modified nano-silica and dimethyl silicone oil and a synergistic effect between high-viscous dimethyl silicone oil and low-viscous dimethyl silicone oil, the process is improved, good antibacterial and flame retardant properties and other properties are obtained, both the mechanical property and environmental protection requirements of the material are achieved, the performance requirements of leather materials such as bags, shoes and clothing, sports equipment and medical equipment can be met, and the leather has broad market prospects.

The invention provides a high tenacity one-dimensional titanium dioxide nanowire modified PP material and a preparation method thereof, and belongs to the field of high polymer materials. The PP material is prepared from the following components in parts by weight: 50-80 parts of polypropylene, 5-40 parts of modified one-dimensional TiO2 nanowire, 1-2 parts of an antioxidant, 1-2 parts of a lightstabilizer and 5-10 parts of a fire retardant; the modified one-dimensional TiO2 nanowire is obtained by adding one-dimensional TiO2 nanowire into a surfactant for surface modification, the diameter of the modified one-dimensional TiO2 nanowire is 10-200nm, and the length is 50nm-5micron. The invention further provides the preparation method of the high tenacity one-dimensional titanium dioxide nanowire modified PP material. The material has the high tenacity.

The invention discloses an anti-aging flame-retardant PVC material and a preparation method and application of the anti-aging flame-retardant PVC material in a wire or a cable. The anti-aging flame-retardant PVC material comprises the following raw materials: PVC, a calcium-zinc stabilizer 5-10, octyl phthalate, calcium carbonate, zinc stearate, an antioxidant, acidic lignin, zinc stannate, dimer acid diisocyanate and ALLCHEM360. According to the preparation method of the wire or the cable, the preparation comprises the following steps: preparing by using the materials, mixing the acidic lignin, the zinc stearate, the zinc stannate, the dimer acid diisocyanate and the ALLCHEM360 for 10-30 minutes, and then carrying out ball milling on the mixture for 2-8 hours to obtain a ball-milled mixture; and mixing the ball-milled mixture with other raw materials to obtain a precursor, and carrying out melt blending extrusion and granulation on the precursor to obtain the material. According to the application of the wire or the cable, the material is used for preparing the wire or the cable. The prepared green, environment-friendly, anti-aging and flame-retardant PVC wire and cable material is high in tensile strength, strong in anti-aging capability, good in flame retardance, simple in preparation process, low-carbon, environment-friendly and easy to industrialize.

The invention relates to a high-end knitted fabric and a processing method thereof, which is characterized in that the far infrared emittance at a 1.0-5.0 micrometer wavelength is 20-50%; and the heat-insulating property allows that under heat radiation for 1 min, a sample has a surface temperature difference before and after heating is 1.0-2.0 DEG C, and the fabric surface temperature is more than 100 DEG C.The application makes use of the changeable processing technology of plain weave and twill weave of the knitted fabric, which has the characteristics of flexibility and diversity and the changeable fabric style, and is widely used in the fields including garments, decoration and industry.

The invention discloses a power cable with a high signal to noise ratio. The power cable comprises three main conducting lines and at least one auxiliary conducting line. The axes in the axial direction of the three main conducting lines are arranged in a triangular shape. At least a part of the auxiliary conducting line is located in a gap space among the main conducting lines. The peripheries of the main conducting lines and the auxiliary conducting lines are filled with insulation materials and covered with the insulation materials into a whole. The peripheries of the insulation materials are provided with a corrugated aluminum sheath. The periphery of each corrugated aluminum sheath is provided with an armor layer formed by two layers of armor electric wires in a winding mode and the armor electric wires of the two armor layers are wound in different directions. The periphery of each armor layer is covered with a protective sleeve. Each main conducting line comprises a core line conductor and a shielding layer covering the core line conductor and each auxiliary conducting line comprises a plurality of densely-arranged core line conductors and a shielding layer covering the core line conductors. The diameter of each core line conductor of each auxiliary conducting line is smaller than that of the core line conductor of each main conducting line and the diameter of each auxiliary conducting line is smaller than that of each main conducting line. One main conducting line serves as a signal transmission line. The power cable with the high signal noise ratio is simple in structure and high in anti-jamming capacity.

The invention is suitable for the field of composite materials, and provides a high-CTI (Comparative Tracking Index), environment-friendly and flame-retardant reinforced PBT (Polybutylene Terephthalate) composite material and a preparation method of the high-CTI, environment-friendly and flame-retardant reinforced PBT composite material. According to 100 percent total weight, the high-CTI, environment-friendly and flame-retardant reinforced PBT composite material is prepared from the following components in percentage by weight: 40 to 55 percent of PBT, 20 to 40 percent of fiberglass, 3 to 8 percent of bromine-containing flame retardant, 8 to 14 percent of phosphor-containing composite flame retardant, 0.1 to 2 percent of polysiloxane, 2 to 5 percent of toughening agent and 0.1 to 1 percent of anti-oxidant.

The invention discloses a halogen-free flame-retardant TPVC ( polyvinyl chloride elastomer) material and a preparation method therefor. The halogen-free flame-retardant TPVC material is prepared from the following components in parts by weight: 100 parts of PVC resin, 50-100 parts of a plasticizer, 5-10 parts of a heat stabilizer, 2-4 parts of a lubricant and 40-100 parts of a halogen-free flame retardant; the plasticizer consists of dioctyl terephthalate, epoxy fatty acid methyl ester, diphenyl isooctyl phosphate and chlorinated paraffin in a weight ratio of 100 to (10-20) to (100-50) to (5-15); and the halogen-free flame retardant consists of magnesium hydroxide, microencapsulated red phosphorus, antimonous oxide and zinc borate in a weight ratio of 100 to (10-20) to (5-15) to (5-15). The halogen-free flame-retardant TPVC material disclosed by the invention has relatively good flame resistance and mechanical properties, and belongs to a green environment-friendly material which is harmless on a human body and environment.

The invention provides an insulating composition for electric cable outer sheaths, wherein the insulating composition comprises, by weight, 60-70 parts of ethylene propylene diene monomer, 30-40 partsof low density polyethylene, 0.5-2 parts of polyethylene wax, 4-10 parts of an antioxidant, 0.5-3 parts of p-benzoquinone dioxime, 2-5 parts of dicumyl peroxide, 50-100 parts of a flame retardant filler, and 1-5 parts of a synergistic flame retardant. According to the present invention, by adding an appropriate amount of polyethylene wax to the blended composition, the entanglement effect of thepolymer molecular chain is reduced, the processing property of the blended composition is improved, magnesium hydroxide is wetted, and the interface compatibility between magnesium hydroxide and polymers is improved, such that magnesium hydroxide is uniformly dispersed in the polymer, and the mechanical property reducing of the blended composition due to the agglomeration of the magnesium hydroxide particles is avoided; and the invention further provides a flame retardant composition for electric cable outer sheaths, and a preparation method thereof.

The invention discloses a flame retardant leather and a preparation method thereof. According to the flame retardant leather, organic silica gel serves as a main component, modified nano-silica and modified layered double-metal oxide serve as flame retardant factors, the synergy functions of the components such as the synergistic flame retardant function of the flame retardant factors, the bondingfunctions of the modified nano-silica and dimethicone and the synergy function of the high-viscosity dimethicone and the low-viscosity dimethicone are utilized, the process is improved, the flame retardant leather has good flame retardant performance, the mechanical performance and environmental protection requirement of materials are integrated, and therefore the flame retardant leather can meetthe performance requirements of furniture, home decoration and artware leathers and have broad market prospects.

The invention relates to a polyvinyl chloride cable material with excellent performance, which is composed of the following components in parts by weight: 100 parts of polyvinyl chloride resin, 25 parts of inorganic filler, 4 parts of triphenyl phosphate, and 10 parts of epoxy oil Butyl acid, 24 parts of aluminum hydroxide, 0.6 parts of antioxidant 1010, 1.8 parts of antioxidant 1024, 2 parts of magnesium oxide, 3 parts of zinc oxide, 2 parts of stearic acid, 0.6 parts of aluminate coupling agent. The cable material has excellent weather resistance, cold resistance, aging resistance and excellent oxygen and copper resistance.