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11.1 Understanding the barrier properties of wood coatings on water transport by means of magnetic resonance

机译：11.1通过磁共振了解木器涂料在水传输中的阻隔性能

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As a result of the regulations, a transition towards waterborne coatings has been made. Generally, waterborne coatings are intrinsically more sensitive to water. This higher sensitivity to water may negatively affect the durability of both wood and coating. One of the key research question focuses on the importance of the interface on the barrier properties (both wetting and drying) of the coating. To answer this question, Magnetic Resonance Imaging on both the uncoated and the coated wood is applied. Our studies focus on understanding the moisture transport through alkyd (solvent and waterborne) and acrylic model coating formulations applied on teak, oak and pine. We will present results showing that the moisture permeability depends on the specific combination of wood and coating. Surprisingly, we found that diffusion of each coating is same and the difference in permeability is the reason of difference in solubility.
机译：由于该法规，已经向水性涂料过渡。通常，水性涂料本质上对水更敏感。这种对水的较高敏感性可能会对木材和涂层的耐久性产生不利影响。研究的关键问题之一是界面对涂层的阻隔性能（润湿和干燥）的重要性。为了回答这个问题，在未涂覆和涂覆的木材上都应用了磁共振成像。我们的研究着重于了解通过柚木，橡树和松树上的醇酸树脂（溶剂和水性）和丙烯酸模型涂料配方中的水分传输。我们将提供的结果表明，透湿性取决于木材和涂料的特定组合。令人惊讶地，我们发现每种涂层的扩散是相同的，并且渗透率的差异是溶解度差异的原因。

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