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首页> 外文会议>TAPPI(Technical Association of the Pulp and Paper Industry) Engineering, Pulping amp; Environmental Conference; 20061105-08; Atlanta,GA(US) >Properties of Pressure Sensitive Adhesives Found in Paper Recycling Operations
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Properties of Pressure Sensitive Adhesives Found in Paper Recycling Operations

机译：纸张回收操作中发现的压敏胶的性能

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摘要

Hot-melt and water-based adhesives are very different materials with similar physical properties. Their ability to act as adhesives is due to physical bonds and mechanical interlocks which form as adhesive flows into topographical features on the substrate surface. Hot-melt adhesives are based on soft, rubbery polymers while water-based adhesives are usually acrylic latex emulsions. Both of these materials are soft and weak resulting in adhesive fragmentation during repulping. We have previously successfully modeled the behavior of hot-melts. The formulation and structure of water-based adhesives make them more susceptible to moisture when in storage, in use and in the recycling process, and thus, understanding their behavior is more difficult. Several experimental techniques have been developed to test how moisture is absorbed by adhesive and what effect water has on the performance of an adhesive material.
机译：热熔和水基粘合剂是非常不同的材料，具有相似的物理性能。它们充当粘合剂的能力归因于物理粘合和机械互锁，当粘合剂流入基材表面的形貌特征时形成机械互锁。热熔粘合剂基于柔软的橡胶状聚合物，而水基粘合剂通常为丙烯酸乳胶乳液。这两种材料都是柔软而脆弱的，导致在重新制浆过程中粘合剂碎裂。我们以前已经成功地模拟了热熔行为。水性粘合剂的配方和结构使它们在储存，使用和回收过程中更容易受潮，因此，了解其行为变得更加困难。已经开发了几种实验技术来测试粘合剂如何吸收水分以及水对粘合剂材料的性能有何影响。

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