The physical chemistry and thermodynamics of semicolloidal polymer-bitumen systems.
Part I. Polymers as modifiers of petroleum asphalt
Polimery 1997, No 11-12, 656
Compatibility of asphalt components is discussed in terms of the chemical and physical colloidal structures of asphalts and of the type of polymers added to make blends uniform. Polymer—asphalt blends, which are polydisperse systems, may be treated as either colloidal sol—gel systems or association—micelle gel colloidal systems according to the proportions and nature of the components. A polymer incorporated into the asphalt medium can be in the dissolved, swollen and dispersed states simultaneously. Asphalts are most often modified with polyolefins, ethylene copolymers and terpolymers, styrene—butadiene copolymers, and rubber.