665 results about "Decabromodiphenyl ethane" patented technology

The invention relates to a high molecular material for an ammeter shell, which consists of PC-based resin, glass fiber, main flame retardant, dripping resistant agent, toughening agent, compatilizer, lubricant, and hindered phenol and phosphate ester of antioxidant. The high molecular material is characterized in that the PC is a mixture of two or more than two different PC with 5 to 24 of melt index, the main flame retardant is decabromodiphenylethane, the compatilizer is maleic anhydride grafting ABS, the toughening agent is PTW, and the lubricant is PETS and OP wax; and each component has the following adding weight portion: 490 to 770 portions of the PC-based resin, 100 to 300 portions of the glass fiber, 50 to 70 portions of the main flame retardant, 50 to 100 portions of the compatilizer, 20 to 40 portions of the toughening agent, 5 to 10 portions of the dripping resistant agent, 5 to 10 portions of the lubricant, and 4 to 6 portions of the antioxidant.

The invention discloses a high-transparency low-temperature-impact-resistant flame-retardant polycarbonate composite material and a preparation method thereof. The composite material comprises following components by weight: 700-850 parts of polycarbonate resin, 100-250 parts of organosilicone co-polymer PC, 0-30 parts of a low-temperature-impact modifying agent and 10-14 parts of a flame retardant. The low-temperature-impact modifying agent is one of an organosilicone type flexibilizer and an acrylate type flexibilizer or a mixture of the organosilicone type flexibilizer and the acrylate type flexibilizer. The flame retardant is one of or a mixture of several compounds selected from decabromodiphenylethane, poly(bromocarbonate), potassium perfluorobutane sulfonate or diphenylsulfonesulfonate. The organosilicone co-polymer PC is polycarbonate resin obtained by copolymerization of bisphenol A and organosilicone and has a relative molecular weight of 20000-30000. The preparation method of the composite material is also provided. According to the composite material and the preparation method, the low-temperature-impact-resistant performance of the PC resin is largely enhanced, and the composite material has excellent flame retardance and can preserve the high transparency of the material itself. In addition, the material has advantages of easy mold filling, low processing temperature, short processing and forming period, and the like.

The invention discloses a glass fiber reinforced environment-friendly flame retardation nylon alloy used for thinwalled articles. The glass fiber reinforced environment-friendly flame retardation nylon alloy mainly comprises the following components: 25 to 35 percent of nylon 66 resin, 8.85 to 16.55 percent of nylon 6 resin, 25 to 30 percent of glass fiber, 3 to 6 percent of glass micro-bead, 14 to 20 percent of TDE, 4 to 7 percent of antimony trioxide, 0.05 to 0.15 percent of antioxidant 1010, 0.1 to 0.3 percent of antioxidant 168, and 1 to 4 percent of compatilizer EPDM-g-MAH. The preparation method for the nylon alloy comprises the following steps: weighing the substances of the components by weight percentage; mixing the components evenly and adding the components into a twin screw extruder; then quantitatively and continuously adding the glass fibers for full fusion and compounding in the twin screw extruder; and finally packaging the product after machine head extrusion, bracing, cooling, granulation and drying. The invention aims to provide the glass fiber reinforced environment-friendly flame retardation nylon alloy with high flame retardant property and thinwalled performance.

This invention relates to a method for producing decabromodiphenyl ethane and antimony trioxide master batches. The raw materials comprise: decabromodiphenyl ethane powder (particle sizes are 0.4-2.0 mum) 50-70 wt.%, antimony trioxide powder 20-40 wt.%, carrier 4-20 wt.%, dispersant 4-10 wt.%, and titanate or silane coupling agent 0.1-1 wt.%. The method comprises: heating and stirring the raw materials in a high-speed stirrer adequately, adding into a twin-screw extruder, granulating, screening by a vibrational screen, drying by a dryer, and packaging. The obtained master batches can be directly added into resin for extrusion or injection-molding, which can simplify the process, reduce dust amount, alleviate equipment abrasion, save raw materials, facilitate convenient mixing and uniform smelting quality, increase production efficiency, and improve product properties.

The invention relates to a flame retardant polypropylene composite material and its preparation method. The retardant polypropylene composite material comprises the following components by weight: 35-45 parts of polypropylene resin, 15-17 parts of decabromodiphenylethane, 28-35 parts of inorganic fire retardant, 6 parts of flame retardant synergistic agent, 5-10 parts of flexibilizer and auxiliary agent. The flame retardant polypropylene composite material has excellent comprehensive properties, especially the flame retardant performance can reach a V-0 grade in UL-94 which accords with the flame retardant requirement, the material is environment-friendly and accords with the requirement of environmental protection, so that the flame retardant polypropylene composite material enables widepopularization and application. In addition, the invention also relates to a method for preparing the flame retardant polypropylene composite material.

The invention discloses a fire-retardant thermoplastic polyolefin waterproof roll, which is of a three-layer composite structure, wherein a middle layer is a fiber fabric layer; an upper surface layer and a lower surface layer are fire-retardant TPO roll layers; a fire-retardant TPO resin layer is prepared from TPO resin as a base material, a composite fire retardant as an assistant and other auxiliary materials; the composite fire retardant is composed of decabrominated dipheny ethane (DBDPE), magnesium hydrate, antimonous oxide and zinc borate; and the auxiliary materials are selected from one or a mixture of more than one of packing, titanium dioxide, a compatilizer, an antioxidant, an ultraviolet absorbent, a light stabilizer and black master batches. According to the waterproof roll disclosed by the invention, through use of the composite fire retardant, the defect that an existing TPO waterproof roll is inflammable is solved; the fire-retardant target is achieved under the premise of ensuring the welding construction and waterproof effect reliability of the product; and through use of the composite fire retardant, the combustion performance of the TPO roll belonging to inflammable materials can be up to A grade maximally, and reaches the non-inflammable grade.

The invention discloses a PTC (Positive Temperature Coefficient) high polymer heating material for a self-limiting temperature electric tracing band, which is prepared from the following raw materials in percentage by weight: 5 to 9 percent of metallocene polyethylene, 65 to 70 percent of high-density polyethylene, 6 to 10 percent of vinyl copolymer thermoplastic elastomer, 1.5 to 2.5 percent of carbon fibers, 15 to 25 percent of carbon black, 0.25 to 0.35 percent of benzotriazole light stabilizer, 0.10 to 0.20 percent of hindered phenol antioxygen, 0.10 to 0.20 percent of decabromodiphenylethane, 0.10 to 0.20 percent of diisooctyl ortho-phthalate, 0.10 to 0.20 percent of dicumyl peroxide and 0.05 to 0.15 percent of nucleating transparent agent zc-3. According to the invention, the elasticity modulus of the PTC material is improved, the maximum stress and the stress of a breaking point of the PTC material are increased, so that the PTC strength and the stretch resistance performance of the PTC heating material are improved.