ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Some features of the behaviour of polymer materials under the conditions of plastic flow and uniaxial stretch are discussed. A combined action of high pressure and shear deformation leads to a drastic change of the physicochemical properties of solid polymer materials caused by the formation of a large free surface in the substance. In consequence, plastic flow of polymer materials may give rise, depending on the conditions of the experiment, either to monoliths with a more homogeneous structure or to highly disperse powders. An anomalous decrease of the deformability of some thermoplasts during uniaxial stretching has been observed in the premelting range; the decrease is caused by the nonhomogeneity of the structure of the material as a result of the enrichment of its amorphous disordered zones with low-molecular fractions.
Additional Material:
13 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1984.020061984124
