Author： Pochivalov K.V. Pronin A.M. Mizerovskii L.N. Kozlov S.N.
Publisher： Springer Publishing Company
ISSN： 0015-0541
Source： Fibre Chemistry, Vol.32, Iss.4, 2000-07, pp. : 298-302
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Abstract
It was experimentally demonstrated that the kinetic nonequivalence of particles of low-density polyethylene (LDPE) gel which appear under the effect of a solvent in different microvolumes of the pore space of a new generation of synthetic leather (SL) base is caused by the difference in their polymer contents. It was shown that excitation of ultrasound vibrations in a solvent with a frequency of 18 kHz can reduce the duration of extraction of LDPE from the SL base as a consequence of intensification of separation of macromolecules from the surface of the gel and due to an increase in the area of this surface as a result of its fragmentation. It was hypothesized that very efficient extraction of LDPE from a SL base can also be created with the traditional method of conducting it in a large volume of extractant with an appropriate design solution of the problem of delivering the US vibrations to the treated material.
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