Effect of ultrasound on the kinetics of extraction of the polymer component from a porous composite material

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 polyme...

Full description

Saved in:
Bibliographic Details
Published in:Fibre chemistry 2000-07, Vol.32 (4), p.298-302
Main Authors: Pochivalov, K V, Pronin, A M, Mizerovskii, L N, Kozlov, S N
Format: Article
Language:English
Subjects:
Amplification
Composite materials
Conduction
Extraction
Low density polyethylenes
Polyethylenes
Porous mateirals
Porous materials
Solvents
Studies
Ultrasound
Vibration
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0015-0541
1573-8493
DOI:10.1007/BF02360728