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首页> 外文会议>TAPPI International Conference on Nanotechnology 2006 >Polymer/Nanoclay Nanocomposites for Paper Barrier Coating
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Polymer/Nanoclay Nanocomposites for Paper Barrier Coating

机译：用于纸障涂料的聚合物/纳米粘土纳米复合材料

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Improving barrier properties of paper containers using nanocomposites has been an active research area recently. In this study, Montmorrilonite and Saponite were used as the nanoclay sources, and polystyrene-butadiene copolymer latex and polyacrylate aqueous dispersions were used as the coating polymers to form the Polymer/Clay Hybrid Nanocomposite (PCHN). The effects of different treatments on the dispersion stability and the nanoclay addition on the improvement of barrier properties were studied. The nanoclay properties and their interactions with the polymer matrix were correlated. Results show that the as-intercalated nanoclay can be fully exfoliated by a simple mechanical mixing in aqueous solution in the presence of dispersion agents Tween-85 and polyacrylic acids (M_w ～ 5 k to 15 k Dalton). The coating layer of exfoliated polymer/clay nanocomposites could significantly improve paper barrier properties. However, the barrier properties of the coating layer are intimately dependent on the mixing conditions, coating process, surface morphology, and the agglomerate formation of the exfoliated clay in the polymer matrix. The study explored a pathway toward practical application of nanoclay with polymer dispersions in paper coating in a cost effective and environmentally friendly way. A brief economic estimation reveals that the PCHN can effectively reduce the paper coating cost to a reasonable level.
机译：使用纳米复合材料改善纸制容器的阻隔性能是近来的活跃研究领域。在这项研究中，将蒙脱土和皂石用作纳米粘土源，并将聚苯乙烯-丁二烯共聚物胶乳和聚丙烯酸酯水分散体用作涂料聚合物，以形成聚合物/粘土杂化纳米复合材料（PCHN）。研究了不同处理对分散体稳定性和纳米粘土添加量对改善阻隔性能的影响。纳米粘土的性质及其与聚合物基质的相互作用是相关的。结果表明，在分散剂Tween-85和聚丙烯酸（M_w〜5 k至15 k Dalton）的存在下，通过在水溶液中进行简单的机械混合，可以完全去除嵌入的纳米粘土。剥离的聚合物/粘土纳米复合材料的涂层可以显着改善纸张的阻隔性能。然而，涂层的阻隔性能紧密取决于混合条件，涂覆过程，表面形态以及聚合物基质中片状粘土的团聚形成。该研究探索了一种以成本有效和环保的方式将纳米粘土与聚合物分散体实际应用到纸张涂料中的途径。简要的经济估算表明，PCHN可以有效地将纸张涂层成本降低到合理水平。

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