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首页> 外文会议>Appita Annual Conference and Exhibition incorporating the ISWFPC(International Symposium on Wood, Fibre and Pulping Chemistry) vol.1: Appita Conference Sessions; 20050516-19; Auckland(NZ) >A study of CRX thickener on a high-speed, laboratory film-press coater
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A study of CRX thickener on a high-speed, laboratory film-press coater

机译：在高速实验室薄膜压涂机上研究CRX增稠剂

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A high-speed, laboratory film-press coater has been developed at Monash University, Australia, specifically to look at coating structure during coating and drying, and to relate observations back to rheological properties (and others) of the fluids if possible. One of the major benefits of this rig is that the operating speed is more closely matched to industry speeds - often not achievable on a laboratory scale. This paper describes the first experiments conducted on this rig using a model, pseudoplastic aqueous solution of 0.6% CRX (an acrylic copolymer). It demonstrates the variations in coating observed when various process parameters are changed, and shows the potential benefits of the on-line imaging facility for determining coating structural features. Image analysis revealed a linear relationship between increased coverage and dwell-time, as expected. Off-line rheological data were also obtained to further describe this model fluid, covering both shear and extensional properties. These properties were related back to the coating structure observed.
机译：澳大利亚莫纳什大学开发了一种高速的实验室压膜涂布机，专门用于研究涂布和干燥过程中的涂层结构，并在可能的情况下将观察结果与流体的流变特性（及其他）联系起来。该钻机的主要优点之一是操作速度与工业速度更加匹配-通常在实验室规模上是无法实现的。本文介绍了使用0.6％CRX（丙烯酸共聚物）的假塑性水溶液模型在该装置上进行的首次实验。它展示了当改变各种工艺参数时观察到的涂层变化，并显示了在线成像设备确定涂层结构特征的潜在优势。图像分析显示，覆盖率和停留时间之间的线性关系符合预期。还获得了离线流变数据，以进一步描述该模型流体，包括剪切和拉伸特性。这些性能与观察到的涂层结构有关。

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