Properties, Range and Applications of MABS Products

While amorphous, single-phase materials such as SAN or PMMA are transparent, rubber-modified, multiphase materials are opaque as a general rule. The reason for the loss of transparency is the scattering of light by the particles of rubber dispersed in the amorphous matrix. However, as with every rule there 

Acrylate rubbers which are employed in ASA contain no double bonds. For that reason, ASA is substantially more resistant to weathering than ABS. Owing to the polar acrylate component, ASA is also more resistant to stress cracking than ABS. ABS in turn has significant advantages in low-temperature impact resistance on account of the very low glass transition temperature of the polybutadiene rubber. 

Bucknall, C. B., Toughned Plastics, Applied Science Publishers, London (1977). 

Kramer, E. J. and Krauch, H. H., Crazing in Polymers, Springer, Berlin (1983). 

Viscoelastic Properties of Polymers, Wiley, New York, 3rd edn, 1980. 

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