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首页> 外文会议>International conference on nanotechnology 2013 >THE POTENTIAL OF MICROFIBRILLATED CELLULOSE IN WATER-LAID AND FOAM-LAID PAPERS
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THE POTENTIAL OF MICROFIBRILLATED CELLULOSE IN WATER-LAID AND FOAM-LAID PAPERS

机译：水和泡沫复合纸中微纤化纤维素的潜力

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Dewatering is an essential step in the processing of fibrous materials. The smaller the material size, the more challenging the dewatering process becomes. The dewatering properties of materials containing microfibrillated cellulose (MFC) are known to be especially challenging, particularly at high MFC contents. This study shows that the foam-laid forming technique enables more effective dewatering compared to water-laid forming and enables structures with both high bulk and sufficient strength. In the study, papers were formed using special water-laid and foam-laid sheet formers and MFC dosage was varied up to 15%. Papers containing high amounts of MFC were found to be unsuitable for water-laid forming due to poor dewatering properties resulting from higher fine material, i.e. MFC, content. Foam forming provided good dewatering characteristics even at high MFC contents. In addition to dewatering properties, the mechanical properties of the papers were also studied. According to the strength results, the strength potential of MFC-containing foam-laid papers was found to be greater with respect to z-directional strength than in-plane strength.
机译：脱水是纤维材料加工中必不可少的步骤。材料尺寸越小，脱水过程就越具有挑战性。已知包含微纤化纤维素（MFC）的材料的脱水性能特别具有挑战性，特别是在高MFC含量下。这项研究表明，与水铺成型相比，泡沫铺成型技术可以实现更有效的脱水，并且可以使结构具有高体积和足够的强度。在这项研究中，使用特殊的水铺和泡沫铺板成型机来形成纸张，而MFC的用量最多可变化15％。发现含有大量MFC的纸由于较高的精细材料即MFC的含量而导致的差的脱水性能，不适合于水铺成型。泡沫成型即使在高MFC含量下也提供了良好的脱水特性。除了脱水性能，还研究了纸的机械性能。根据强度结果，发现含MFC的泡沫纸的强度潜力相对于z方向强度大于面内强度。

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