Secondary processing of products from polyurethane foam

Abstract

© 2019 Ivanovo State University of Chemistry and Technology. All rights reserved. The influence of secondary raw materials and wastes, which are sandwich constructions of PPU products on the physical and mechanical properties of PPU products, is investigated. Decrease in deformability at indentation by 11% is established; Sound absorption coefficient up to 44% at 1600 Hz; coefficient of thermal conductivity of 12.5%, while maintaining the index of the strength of the connection of the face layer with the ESP at the same level of 0.3 N/mm compared with the original products of the PPU.