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| Effect of High-speed Mechanical Stirring and Ultrasonic Dispersing on the Properties of Chitosan-montmorillonite Composites |
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| DOI：10.11980/j.issn.0254-508X.2016.11.002 |
| Key Words:montmorillonite chitosan ultrasonic high-speed stirring barrier |
| Fund Project:国家自然科学基金(31370583)。 |
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| Abstract:In this paper, montmorillonite and organic montmorillonite were used as the research objects, the effects of two different methods of high-speed mechanical stirring and ultrasonic dispersing on the properties of chitosan-montmorillonite composites were studied, and the composite materials were used for the barrier coating of the paper. The results showed that the dispersing effect of ultrasonic was better than high-speed mechanical stirring, it could obviously reduce the agglomeration of montmorillonite particles no matter whether it was Na-montmorillonite or organic montmorillonite. Compared with montmorillonite, the dispersion of organic montmorillonite was better. Meanwhile, the data of Cobb value and water vapour transmission rate of the coated paper indicated that, the water resistance of chitosan-organic-montmorillonite composites was better than chitosan-montmorillonite composites, and the ultrasonic treatment of the composite could improve the barrier property of the coated paper． |
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