ISSN:
1435-1536
Keywords:
Crystallization of polymers
;
oriented crystallization
;
stress induced crystallization
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Summary Summarizing a number of experiments concerning crystallization of polymers in oriented state, and attempting to compare them with predictions of various theories one comes to the conclusion, that in many areas of the field the experimental results remain in qualitative agreement with theory. It is much difficult to find such agreement concerning quantitative aspects. The reason for that comes from both sides; experiments are usually made at conditions, which do not correspond to theoretical assumptions, and theories usually discuss particular models, which are not able to describe full variety of morphologies and situations occurring in reality. It is believed that measurements performed at constant stress will provide data, that could be used to verify some theories. Basing on these data, it should be also possible to predict behaviour in other, more complex conditions. This is the matter of practical importance, and finally it could give better insight into phase transition occurring in such processes like fiber spinning, film blowing or injection molding, at each of them the molecular orientation takes place. Also explanation of morphological peculiarities appearing in oriented crystallization, as well as deeper insight into crystallization mechanisms can be expected from this type of measurements.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01384960
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