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The impact fracture toughness of plasticized cellulose acetate and the relationship with the secondary loss transition
Author(s) -
Fong Clifford W.
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070270932
Subject(s) - fracture toughness , materials science , composite material , cellulose , cellulose acetate , fracture (geology) , toughness , fracture mechanics , chemistry , organic chemistry
The impact fracture toughness of plasticized cellulose acetate has been determined by linear elastic fracture mechanics over the temperature range 20–70°C. A major peak in fracture toughness at −10°C has been found to correspond to a secondary loss transition in the dynamic mechanical loss spectrum of plasticized cellulose acetate. At −10°C, the fracture toughness is directly proportional to the log of the maximum strain rate.