Williams-Landel-Ferry equation

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf empirical equation
gptkbp:abbreviation WLF equation
gptkbp:appliesTo amorphous polymers
gptkbp:describes temperature dependence of viscosity
temperature dependence of relaxation times
gptkbp:field polymer science
rheology
gptkbp:form log(a_T) = -C1*(T-T_ref)/(C2+(T-T_ref))
gptkbp:formedBy gptkb:John_D._Ferry
Malcolm L. Williams
Robert F. Landel
https://www.w3.org/2000/01/rdf-schema#label Williams-Landel-Ferry equation
gptkbp:parameter C1
C2
T_ref
a_T
gptkbp:publicationYear 1955
gptkbp:publishedIn gptkb:Journal_of_the_American_Chemical_Society
gptkbp:relatedTo glass transition temperature
time-temperature superposition principle
gptkbp:usedFor predicting polymer behavior above glass transition
gptkbp:bfsParent gptkb:Time-Temperature_Superposition
gptkbp:bfsLayer 7