Journal ArticleDOI
Tannin-based rigid foams: a survey of chemical and physical properties.
TLDR
It is shown that tannin-based rigid foams, prepared from 95% natural material, can compete with synthetic ones for most of traditional applications and are fully comparable with those of their phenolic counterparts.About:
This article is published in Bioresource Technology.The article was published on 2009-11-01. It has received 197 citations till now. The article focuses on the topics: Compressive strength & Ultimate tensile strength.read more
Citations
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The irruption of polymers from renewable resources on the scene of macromolecular science and technology
TL;DR: A panoramic overview of recent progress in the most relevant areas related to such materials, including the polymerisation of natural monomers and their derivatives, the exploitation of biopolymers, as such, or after appropriate modifications, as well as the preparation of composites and blends, can be found in this article.
Journal ArticleDOI
Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures
Alice Arbenz,Luc Avérous +1 more
TL;DR: Tannins are, after lignins, the most abundant source of natural aromatic biomolecules and can be an alternative feedstock for the elaboration of chemicals, building blocks to develop polymers and materials as mentioned in this paper.
Journal ArticleDOI
Valorization of bark for chemicals and materials: A review
Shanghuan Feng,Shanghuan Feng,Shuna Cheng,Shuna Cheng,Zhongshun Yuan,Mathew Leitch,Chunbao (Charles) Xu +6 more
TL;DR: In this article, the technical routes and technologies on the valorization of tree barks for chemicals and materials are reviewed, including direct utilization of bark for wooden panels, and extraction for extractives (mainly tannin) and their application in resins and foam materials, as well as conversion of bark via thermochemical technologies, mainly phenolysis, direct liquefaction in alcohols and pyrolysis.
Journal ArticleDOI
Wood products and green chemistry
Antonio Pizzi,Antonio Pizzi +1 more
TL;DR: In this article, the elimination of toxic aldehydes from the most common wood panel adhesive, the one based on urea, itself a natural product, is discussed, as well as biosourced adhesives derived from wood or other vegetable matter and used for wood products.
Journal ArticleDOI
Spruce bark as an industrial source of condensed tannins and non-cellulosic sugars
TL;DR: In this article, the chemical composition and hot water extraction of spruce bark was studied to find out its potential as an industrial source of condensed tannins, and an extract was produced having a promising 50% tannin content, however the high content of free, glycosidic and polymeric sugars in the raw extract may need to be tackled prior to use in applications.
References
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Cellular Solids: Structure and Properties
Lorna J. Gibson,Michael F. Ashby +1 more
TL;DR: The linear elasticity of anisotropic cellular solids is studied in this article. But the authors focus on the design of sandwich panels with foam cores and do not consider the properties of the materials.
Journal ArticleDOI
Thermophysical properties of high porosity metal foams
TL;DR: In this article, the effective thermal conductivity (ke), permeability (K), and inertial coefficient (f) of high porosity metal foams were derived by considering a circular blob of metal at the intersection of two fibers.
Journal ArticleDOI
Paraffin/porous-graphite-matrix composite as a high and constant power thermal storage material
TL;DR: In this article, a supported phase change material (PCM) made of paraffin impregnated by capillary forces in a compressed expansed natural graphite (CENG) matrix is presented.
Journal ArticleDOI
Kinetic study of the acid hydrolysis of sugar cane bagasse
TL;DR: In this article, the xylose production from sugar cane bagasse by sulphuric acid hydrolysis at several temperatures (100, 122 and 128 C) and concentrations of acid (2, 4% and 6%).
Journal ArticleDOI
Effective Thermal Conductivity and Permeability of Aluminum Foam Materials1
TL;DR: In this article, an experimental measurement program was performed to determine thermophysical properties of aluminum-based foam metals, and the effective thermal conductivity ke and permeability K were investigated in detail.