Abstract

The manufacturing of polyurethane foam is a process of great industrial importance in the automotive and furniture sector. The operation of demolding is the most delicate, since the foam sticks firmly to the walls of the mold onto which it has spread. In order to avoid the use of demolding agents, the proposal is to coat the inside of the molds with non-stick coatings. In this work, three types of different coatings were studied: fluoropolymers, ceramics, and elastomers. After carrying out different tests in the laboratory, two fluoropolymer coatings (PFA (perfluoroalkoxy) and PTFE (polytetrafluoroethylene)) were selected for a test at the industrial level and, after 1500 cycles of demolding, it was experimentally proven that the PFA coating is the most adequate for the use studied.

Details

Title
Non-Stick Coatings in Aluminium Molds for the Production of Polyurethane Foam
Author
Sánchez-Urbano, Francisco 1 ; Paz-Gómez, Guillermo 2 ; Rodríguez-Alabanda, Óscar 1   VIAFID ORCID Logo  ; Romero, Pablo E 1   VIAFID ORCID Logo  ; Cabrerizo-Vílchez, Miguel 2 ; Rodríguez-Valverde, Miguel Ángel 2 ; Guerrero-Vaca, Guillermo 1   VIAFID ORCID Logo 

1  Department of Mechanical Engineering, University of Cordoba, Medina Azahara Avenue 5, 14071 Cordoba, Spain 
2  Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain 
First page
301
Publication year
2018
Publication date
2018
Publisher
MDPI AG
e-ISSN
20796412
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.3390/coatings8090301
ProQuest document ID
2582795437
Copyright
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.