Study On High Impact Polystyrene/Layered Silicate Composites And Its Flame Retardant Optimizing

High impact polystyrene is a modified copolymer, and it is prepared through grafing proper butadiene on polystyrene. Because of the excellent synthetical property, high impact polystyrene is widely applied in many areas including electronic appliances furnitures architectures and so on. However, high impact polystyrene plastics and its correlative products are quite combustible, meanwhile it releases a lot of darking smoke and poisoning gas while burning, which is a pertential hidden trouble of firing. So the flame retarding of high impact polystyrene is necessary. As the improvement of flame retardant standards and enhancement of environment protecting in society, the traditional fire retardant agents are enduring more and more challenging, so improving the property of traditional fire retardant agents and developing new-fashioned flame retardant polymer materials are becoming quite urgent. Polymer layered silicate nanocomposites is a kind of new-style flame retardant polymer material, which is not only better flame retardancy and lower smoke release rate, but also has lower toxin and friendly to environment, and all these are current developing trend of flame retardant materials. Although there are so many advantages, the flame retardant degree of polymer layered silicate nanocomposites is finite because its flame retardant mechanism is the singlular protective screen of inorganic layers, and this is lower to most polymers compared with splendid traditional flame retardants, for example, halogen flame retardant system red phosphorus flame retardant system etc. Therefore, in order to further improve the flame retardancy of polymer layered silicate nanocomposites, it is necessary to utilize other avenues. Nowadays, some researchers find that it is quite effective to combine the conventional fire retarding agents to intercalated means, and this not only can elaborate the high efficiency of conventional flame retardant system, but also some outstanding flame retardant properties of polymer layered silicate nanocomposites can be maintained, ie, the lower smoke release rate. Through this combination of the aboved two ways, the loading of conventional flame retardants can be brought down on condition of superior flame retardancy, which is very important to reduce the negative affection caused by the...