Rheological characteristics of oligomeric semiproducts gained via chemical degradation of polyurethane foam using crude glycerin in the presence of different catalysts - Publication - Bridge of Knowledge

Search

Rheological characteristics of oligomeric semiproducts gained via chemical degradation of polyurethane foam using crude glycerin in the presence of different catalysts

Abstract

Polyurethane (PU) recycling is a topic of growing interest due to the increasing amount of polyurethane waste. The main purpose of polyurethane chemical recycling is to recover the starting polyol. In this study, a method of polyurethane thermochemical recycling, glycerolysis by means of crude glycerin, is proposed. This work presents a comparative study of commercial catalysts used in order to accelerate the decomposition process, namely triethylamine (TEA), potassium acetate (KAc), 1,4-diazabicyclo[2.2.2]octane (DABCO), sodium hydroxide (NaOH), dibutyltin dilaurate (DbDl), and stannous octoate (StOc).The effect of used catalyst on the chemical structure and rheological properties was studied. The type of catalyst does not have significant influence on the chemical structure, but causes different course of reaction: split- and single-phase in applied conditions. Glycerolysates were measured by Brookfield Rheometer. It was found that repolyols can be described by the Herschel–Bulkely mathematical model in the best accuracy. The investigation showed that the rheological behavior of glycerolysates depended on the catalyst used in glycerolysis process

Citations

  • 1 2

    CrossRef

  • 0

    Web of Science

  • 1 4

    Scopus

Cite as

Full text

full text is not available in portal

Keywords

Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
POLYMER ENGINEERING AND SCIENCE no. 57, edition 8, pages 891 - 900,
ISSN: 0032-3888
Language:
English
Publication year:
2017
Bibliographic description:
Jutrzenka Trzebiatowska P., Datta J.: Rheological characteristics of oligomeric semiproducts gained via chemical degradation of polyurethane foam using crude glycerin in the presence of different catalysts// POLYMER ENGINEERING AND SCIENCE. -Vol. 57, iss. 8 (2017), s.891-900
DOI:
Digital Object Identifier (open in new tab) 10.1002/pen.24466
Verified by:
Gdańsk University of Technology

seen 98 times

Recommended for you

Meta Tags