Model Plastic-Rubber Composites from Emulsion Polymers
Two of the most interesting phenomena of polymer science are the reinforcement of the strength of rubber vulcanizates by particulate fillers and the toughening (to impact) of plastics by particulate rubber inclusions. The mechanisms underlying these phenomena have, however, been difficult to elucidate because of the complexity of the materials used in their industrial applications. Thus the most common filler used in rubber technology, carbon black, has a complex structure, making it difficult even to determine its “particle” size, aside from the question of its chemical reactions with the rubber. Similarly, the rubbertoughened plastics, such as high-impact polystyrene, are prepared by a polymerization process in presence of dissolved rubber, leading to a precipitation of ill-defined rubber “particles”.
KeywordsImpact Strength Emulsion Polymer Rubber Particle Flexural Modulus Rubber Composite
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