Plasticized polyvinyl chloride has been found to undergo a permanent deformation when strained past 100%. At the same strains, internal energy effects become pronounced as reflected in the stress‐strain curves. Plasticizer efficiency has been evaluated in several respects, namely rubber‐like behavior, recovery, glass transition, set, and stress‐strain at break. While no single plasticizer stands out, the following sequence has been established with respect to the first four aspects listed above: DOA ≥ TCP > DPP ≥ ARO.
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Sabia et al. (1963) studied this question.
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