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Preparation and Mechanical Properties of Nanocomposite of Cellulose Diacetate/Montmorillonite  

조미숙 (성균관대학교 화학공학과)
최성헌 (성균관대학교 화학공학과)
남재도 (성균관대학교 고분자공학과)
이영관 (성균관대학교 화학공학과)
Publication Information
Polymer(Korea) / v.28, no.6, 2004 , pp. 551-555 More about this Journal
Abstract
Cellulose diacetate (CDA) nanocomposite films were prepared by using various plasticizer and montmorillonite nanofiller in methylene chloride/ethanol (9:1 w/w) mixed solution. The thermal property (T$_{g}$) of prepared CDA films was observed by DSC and T$_{g}$ of the films was decreased with the increase in the plasticizer content. The degree of dispersion of MMT in the CDA film was observed by XRD and mechanical property of CDA film was measured by tensile strength and Young's modulus. When the plasticizer was added into the CDA film upto 30 wt%, the Young's modulus of film was decreased from 1930 MPa to 1131 MPa but was increased from 1731 MPa to 2272 MPa when the MMT was added into the film upto 7 wt%. The mechanical properties of CDA films were decreased by addition of plasticizer but strengthened by the incorporation of MMT.
Keywords
cellulose diacetate; montmorillonite; plasticizer;
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