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Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions

Bio-based polyurethane materials with abundant open-cells have wide applications because of their biodegradability for addressing the issue of environmental conservation. In this work, open-cell rigid polyurethane foams (RPUFs) were prepared with bio-based polyols (BBPs) derived from the liquefactio...

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Autores principales: Zhang, Guangyu, Wu, Yumin, Chen, Weisheng, Han, Dezhi, Lin, Xiaoqi, Xu, Gongchen, Zhang, Qinqin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780715/
https://www.ncbi.nlm.nih.gov/pubmed/31450807
http://dx.doi.org/10.3390/polym11091392
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author Zhang, Guangyu
Wu, Yumin
Chen, Weisheng
Han, Dezhi
Lin, Xiaoqi
Xu, Gongchen
Zhang, Qinqin
author_facet Zhang, Guangyu
Wu, Yumin
Chen, Weisheng
Han, Dezhi
Lin, Xiaoqi
Xu, Gongchen
Zhang, Qinqin
author_sort Zhang, Guangyu
collection PubMed
description Bio-based polyurethane materials with abundant open-cells have wide applications because of their biodegradability for addressing the issue of environmental conservation. In this work, open-cell rigid polyurethane foams (RPUFs) were prepared with bio-based polyols (BBPs) derived from the liquefaction of peanut shells under different post-processing conditions. The influences of the neutralization procedure and filtering operation for BBPs on the foaming behaviors, density, dimensional stability, water absorption, swelling ratio, compressive strength, and microstructure of RPUFs were investigated intensively. The results revealed that a small amount of sulfuric acid in the polyols exhibited a great impact on physical and chemical properties of RPUFs while the filtering operation for those polyols had a slight effect on the above properties. The RPUFs prepared from neutralized BBPs possessed higher water absorption, preferable dimensional stability and compression strength than that fabricated from the non-neutralized BBPs. Moreover, the prepared RPUFs exhibited preferable water absorption of 636–777%, dimensional stability of <0.5%, compressive strength of >200 KPa, lower swelling rate of ca. 1%, as well as uniform cell structure with superior open-cell rate, implying potential applications in floral foam.
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spelling pubmed-67807152019-10-30 Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions Zhang, Guangyu Wu, Yumin Chen, Weisheng Han, Dezhi Lin, Xiaoqi Xu, Gongchen Zhang, Qinqin Polymers (Basel) Article Bio-based polyurethane materials with abundant open-cells have wide applications because of their biodegradability for addressing the issue of environmental conservation. In this work, open-cell rigid polyurethane foams (RPUFs) were prepared with bio-based polyols (BBPs) derived from the liquefaction of peanut shells under different post-processing conditions. The influences of the neutralization procedure and filtering operation for BBPs on the foaming behaviors, density, dimensional stability, water absorption, swelling ratio, compressive strength, and microstructure of RPUFs were investigated intensively. The results revealed that a small amount of sulfuric acid in the polyols exhibited a great impact on physical and chemical properties of RPUFs while the filtering operation for those polyols had a slight effect on the above properties. The RPUFs prepared from neutralized BBPs possessed higher water absorption, preferable dimensional stability and compression strength than that fabricated from the non-neutralized BBPs. Moreover, the prepared RPUFs exhibited preferable water absorption of 636–777%, dimensional stability of <0.5%, compressive strength of >200 KPa, lower swelling rate of ca. 1%, as well as uniform cell structure with superior open-cell rate, implying potential applications in floral foam. MDPI 2019-08-23 /pmc/articles/PMC6780715/ /pubmed/31450807 http://dx.doi.org/10.3390/polym11091392 Text en © 2019 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/).
spellingShingle Article
Zhang, Guangyu
Wu, Yumin
Chen, Weisheng
Han, Dezhi
Lin, Xiaoqi
Xu, Gongchen
Zhang, Qinqin
Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title_full Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title_fullStr Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title_full_unstemmed Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title_short Open-Cell Rigid Polyurethane Foams from Peanut Shell-Derived Polyols Prepared under Different Post-Processing Conditions
title_sort open-cell rigid polyurethane foams from peanut shell-derived polyols prepared under different post-processing conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780715/
https://www.ncbi.nlm.nih.gov/pubmed/31450807
http://dx.doi.org/10.3390/polym11091392
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