a study on physical and chemical properties of cellulose paper immersed in various solvent mixtures理化性质研究纤维素纸沉浸在各种溶剂混合物.pdfVIP

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a study on physical and chemical properties of cellulose paper immersed in various solvent mixtures理化性质研究纤维素纸沉浸在各种溶剂混合物.pdf

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a study on physical and chemical properties of cellulose paper immersed in various solvent mixtures理化性质研究纤维素纸沉浸在各种溶剂混合物

Int. J. Mol. Sci. 2008, 9, 78-88 International Journal of Molecular Sciences ISSN 1422-0067 © 2008 by MDPI /ijms/ Full Research Paper A Study on Physical and Chemical Properties of Cellulose Paper Immersed in Various Solvent Mixtures Halil Turgut Sahin * and Mustafa Burak Arslan Department of Forest Products Engineering, Forestry Faculty, Suleyman Demirel University, 32260 Isparta, Turkey; E-mails: sahin@.tr ; mbarslan@.tr * Author to whom correspondence should be addressed. Received: 7 December 2007 / Accepted: 10 January 2008 / Published: 25 January 2008 Abstract: The cellulose paper treated in proportional mixture systems showed higher liquid absorption compare to only EtOH and MeOH treatments. It was approximately 40-70% and 50-91% higher for EtOH-NaOH and MeOH-NaOH treated papers, respectively. All conditions apparently bring about an effect of decreased strength for papers. The lowest tensile strength of 13.0 N/mm was found with EtOH and NaOH treated samples after 5th repeating wetting-drying stage. But, some conditions gave approximately 21-59.5% higher stretch than untreated samples. The pore size distributions of papers were evaluated with Simons stain procedure and experimental results usually consisted with sorption data. The less intense CH -CH - vibrations (1450-1700 cm-1) and C-C and C-O-C