Equilibrium Shrinkage-Force Measurement — A Method Describing the State of Order of Pet-Fibres
A new modified technique of measuring shrinkage forces provides in certain intervals of temperature an alteration of the clamped lengths by a minute stretching or shrinking of the fibres in a manner resulting a zero force deviation. So at each temperature we have an equilibrium of the released inherent stresses of the fibres and the recorded ones. These so called equilibrium-shrinkage-force-curves are capable of describing the state of order of PET-fibres in a better way than other methods do.
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