Abstract
A study has been made of the cold drawing of amorphous polyethyleneterephthalate under strain in an adsorption-active medium as a function of the rate of deformation. A relationship has been found between mechanical behaviour of the polymer under a constant rate of deformation in an adsorption-active medium, and processes of formation and development of specific microcracks. The existence of distributions according to microcrack (craze) growth rates revealed the importance of the role played by microdefects and microheterogeneity in the formation and growth of microcracks.
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