Article: Mechanical Properties of Acrylic Based Latex Blend Coatings.(Brief Article)

N. AGARWAL [1]

R.J. FARRIS [2]

A complete characterization of the mechanical properties of acrylic based latex blend coatings comprising hard ([T.sub.g] = 45[degress]C) and soft ([T.sub.g] = -5[degrees]C] phases is presented. Although clear and transparent in appearance, these blends remain phase separated through the entire range of compositions based on their hard phase content. Blends with less than 50% hard phase (soft blends) show a typical rubber-like behavior with large elongation to break and low stiffness, whereas those with more than 50% hard phase (hard blends) exhibit a progressively glassy behavior. The values of effective Young's moduli ...

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