Download Bio-based Polyols and Polyurethanes by Yebo Li, Xiaolan Luo, Shengjun Hu PDF

By Yebo Li, Xiaolan Luo, Shengjun Hu

This short outlines the latest advances within the creation of polyols and polyurethanes from renewable assets, normally vegetable oils, lignocellulosic biomass, starch, and protein. the common tactics for the construction of polyols from all of the above pointed out feedstocks are brought and the homes of the ensuing polyols and polyurethanes also are discussed.

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Mutlu H, Meier MA (2010) Castor oil as a renewable resource for the chemical industry. Eur J Lipid Sci Tech 112:10–30 93. Stirna U, Lazdina B, Vilsone D, Lopez MJ, del Vargas-Garcia Carmen M, Suárez-Estrella F, Moreno J (2012) Structure and properties of the polyurethane and polyurethane foam synthesized from castor oil polyols. J Cell Plast 48:476–488 94. Corcuera MA, Rueda L, Fernandez dArlas B, Arbelaiz A, Marieta C, Mondragon I, Eceiza A (2010) Microstructure and properties of polyurethanes derived from castor oil.

Junming X, Jianchun J, Jing L (2012) Preparation of polyester polyols from unsaturated fatty acid. J Appl Polym Sci 126:1377–1384 105. Hojabri L, Kong X, Narine SS (2010) Functional thermoplastics from linear diols and diisocyanates produced entirely from renewable lipid sources. Biomacromolecules 11:911– 918 106. González-Paz RJ, Lluch C, Lligadas G, Ronda JC, Galià M, Cádiz V (2011) A green approach toward oleic- and undecylenic acid-derived polyurethanes. J Polym Sci Pol Chem 49:2407–2416 107.

2 Vegetable Oil-Based Polyols and Polyurethanes 23 commercial petroleum-derived polyol [29]. Partial substitution of commercial petroleum-derived polyols by epoxidized polyols has been shown to be feasible for the production of high-quality rigid PU foams [39, 40]. Under optimal foaming conditions, PU foams produced with up to 50 % epoxidized polyol substitution possessed mechanical and thermal-insulating properties comparable with those based on 100 % petroleum-derived polyols [39, 40]. e. an increase of thermal conductivity with time due to its higher N2 permeation, than petroleum-derived foams, which may be alleviated by the addition of a crosslinker, such as glycerol [39].

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