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首页> 外文会议>Asian Pacific Conference on Fracture and Strength;APCFS; 20061122-25;20061122-25; Sanya(CN);Sanya(CN) >Mechanical Properties of Coil Coating Evaluated with Dynamic Mechanical Analysis in Daul Cantilever
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Mechanical Properties of Coil Coating Evaluated with Dynamic Mechanical Analysis in Daul Cantilever

机译：用动态力学分析评估卷材涂层的力学性能

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摘要

The storage modulus, loss modulus, loss tangent (tanδ), stress and strain have been determined for painted steel specimens by dynamic mechanical analysis (DMA) operated in Daul Cantilever mode. Analysis of the composite system enabled the elastic modulus of the paint layer to be calculated and the result can be useful to analyze the mechanical properties of the coil coating. The calculation was found to be very sensitive to the geometry (especially thickness of the substrate and coating) and properties of the substrate and coating, leading to considerable variability in the calculated coating modulus. The DMA method was successful in detecting the glass transition temperature (T_g) as a peak in the tan5 curve. The value of T_g is sensitive to the preparation conditions (e.g. curing temperature) and composition of the paint. The results show that DMA in Daul Cantilever can be useful as a characterization tool for painted steel.
机译：通过在道尔悬臂梁模式下进行的动态力学分析（DMA），已确定了涂漆钢试样的储能模量，损耗模量，损耗角正切（tanδ），应力和应变。通过对复合系统的分析，可以计算出涂料层的弹性模量，其结果可用于分析卷材涂层的机械性能。发现该计算对几何形状（特别是基材和涂层的厚度）和基材和涂层的性质非常敏感，从而导致计算的涂层模量有相当大的可变性。 DMA方法成功地将玻璃化转变温度（T_g）检测为tan5曲线中的峰值。 T_g的值对制备条件（例如固化温度）和涂料的组成敏感。结果表明，道尔悬臂梁中的DMA可用作油漆钢的表征工具。

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