Flame-retardant highly impact resistant polystyrene complex containing decabromodiphenylethane and preparation thereof
A technology of flame-retardant high-impact polystyrene and decabromodiphenylethane, which is applied in the field of flame-retardant high-impact polystyrene composites and its preparation, can solve problems such as restrictions on popularization and use, and achieve good mechanical properties, Easy to process and shape, optimize the effect of processing aid system
Inactive Publication Date: 2009-01-28
SHANGHAI KINGFA SCI & TECH +1
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Problems solved by technology
However, HIPS is easy to burn, which limits its further promotion and use
Method used
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[0013] Preparation method: After fully mixing the components under high-speed stirring, melt, knead, extrude, cool, dry, pelletize and pack through a twin-screw extruder. The temperature of each partition of the screw barrel should be kept between 180 and 240 °C. The length-to-diameter ratio of the twin-screw extruder is 32-40, and the screw speed is 300-500 rpm.
[0014] This experiment uses HIPS with a butadiene rubber content of 3-10%, a mixture of decabromodiphenylethane and brominated epoxy or tetrabromobisphenol A as a flame retardant.
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The invention discloses a flame-retarding high impact-resistant polystyrene composite containing DBDPE and a preparation method thereof. The composite comprises the components with the following portions: 77 to 89.9 percent of high impact-resistant polystyrene resin, 3 to 10 percent of DBDPE flame retarding agent, 2 to 14 percent of brominated epoxy or tetrabromobisphenol A flame retarding agent, 2 to 7 percent of retardant synergist and 0.1 to 1 percent of antioxidant, which are one-time extruded and processed by a double screw extruder. The composite of the invention has good mechanical performance, unchanged processing performance, high flame retarding efficiency, high-grade flame retarding performance, small environmental pollution and small human harm, can meet the strict requirements for environment protection internationally at present, simultaneously has the advantages of easy forming and good surface glossiness, and is suitable for making shells of various electrical appliances.
Description
technical field [0001] The invention relates to the technical field of modification of high-impact polystyrene, in particular to a flame-retardant high-impact polystyrene compound containing decabromodiphenylethane and a preparation method thereof. Background technique [0002] Polystyrene (PS) was industrialized in 1930 by I.G Farben (predecessor of BASF) in Germany. As one of the five general-purpose plastics, it has the advantages of excellent formability, hard quality, transparency, rigidity, electrical insulation, low hygroscopicity, easy dyeing and low price. High-impact polystyrene (HIPS) is produced by adding a small amount of elastomer to PS, which overcomes the brittleness of polystyrene and is widely used in electronics, automobiles, home appliances, instruments, daily necessities, toys, etc. industry. However, HIPS is easy to burn, which limits its further promotion and use. Especially in light-colored home appliances such as monitors, video recorders, copiers...
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Login to View More IPC IPC(8): C08L25/06C08K5/13C08K5/03C08K3/22C08K3/38
Inventor 王林薄文海郭建明
Owner SHANGHAI KINGFA SCI & TECH
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