• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>TAPPI Coating and Graphic Arts Conference 2006 >Elimination of Misting During High Speed Metered Size Press Coating of Starch Containing Coating Colors with a New Hyper-Branched Polymer
【24h】

Elimination of Misting During High Speed Metered Size Press Coating of Starch Containing Coating Colors with a New Hyper-Branched Polymer

机译：用新型超支化聚合物消除了在含有淀粉的涂料的淀粉的高速计量施胶过程中的雾化

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To eliminate a misting problem at 1800 m/min, a mill had reduced the starch proportion in the more critical topside formulation. For reasons of economy and printability, an increase in the starch level was desired.rnIt is known that certain additives that influence rheology can also reduce misting. Hyper-branched polymers are selectively constructed using polyvalent building blocks. The advantage of this procedure is that a well-defined molecular structure with respect to molecular weight and hydrophilic/hydrophobic regions can be generated.rnDuring pilot trials using a formulation containing 4 parts starch as a co-binder, one specific hyperbranched polymer significantly outperformed two other rheology modifiers with respect to misting reduction.rnIn another pilot series, an LWC formulation with 5 parts starch plus 7 parts latex could be run without misting at 1700 m/min and 8 g/m~2 coat weight. However, a reversal in the binder composition to 7 parts starch plus 5 parts latex led to misting under the same conditions. The addition of 0.4 parts of the same hyper-branched polymer to the latter formulation not only eliminated the misting but also enabled the speed to be increased to 1950 m/min despite the fact that due to hydrodynamics the coat weight had increased to 10 g/m~2 per side.
机译：为了消除1800 m / min的雾化问题，一台轧机降低了更关键的上层配方中的淀粉比例。出于经济和可印刷性的原因，需要增加淀粉含量。众所周知，某些影响流变性的添加剂也可以减少起雾。使用多价结构单元选择性地构建超支化聚合物。该方法的优点是可以产生相对于分子量和亲水/疏水区域的明确的分子结构。在使用包含4份淀粉作为助粘合剂的配方进行的中试期间，一种特定的超支化聚合物的性能明显优于两种在减少雾化的其他流变学改性剂上。在另一个试验系列中，可以在1700 m / min和8 g / m〜2的涂层重量下运行含有5份淀粉加7份乳胶的LWC配方而不会产生雾化。然而，在相同条件下，粘合剂组合物反转为7份淀粉加5份胶乳会导致起雾。向后一种配方中添加0.4份相同的超支化聚合物，不仅消除了起雾现象，而且使速度提高到了1950 m / min，尽管由于流体动力学使涂层重量增加到了10 g / min每边m〜2。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号