Adherence evaluation of paint coatings using a three-point flexure test and acoustic emission
Adherence evaluation of paint coatings using a three-point flexure test and acoustic emission
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使用三点弯曲测试和声发射评估油漆涂层的附着力
DOI：
10.1002/app.1618
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发表时间：
2001
影响因子：
3
通讯作者：
P. Michelin
中科院分区：
文献类型：
--
作者：
P. Devos;Y. Baziard;B. Rives;P. Michelin
采用三点弯曲试验（TPFT）结合声发射（AE）评价，测试了油漆涂层在铝基材上的附着力。根据法国标准定义机械测试。在弯曲过程中的油漆涂层试样，声发射信号被记录和分析。选择基材预处理以显示一组可见界面破裂和一组可见油漆内聚破裂。这种油漆的配方是由工业规程规定的。不同性质的系统表现出不同的AE模式，特别是两种类型的标本：那些对应于溶剂脱脂和其他含水化学预处理。油漆涂层的行为不同，在第一种情况下具有显著的AE、损伤和裂纹扩展，在另一种情况下具有瞬时现象。然后，可以建立记录的AE信号的分析与接头断裂类型之间的关系。John Wiley & Sons，Inc.应用聚合物科学杂志81：1848-1857，2001
The adherence of paint coatings on aluminum substrates was tested using a three-point flexure test (TPFT) combined with acoustic emission (AE) evaluation. The mechanical test was defined according to the French Standard. During bending of the paint-coated specimen, acoustic emission signals were recorded and analyzed. Substrate pretreatments were chosen to show a set of visual interfacial ruptures and a set of visual cohesive ruptures in the paint. The formulation of the paint was fixed by industrial regulations. The varying nature of systems showed different AE patterns, particularly for two types of specimens: those that corresponded to solvent degreasings and the others to aqueous chemical pretreatments. The behavior of the paint coating differed, with significant AE, damage, and crack propagation in the first case and instantaneous phenomena in the other case. It is then possible to establish a relationship between the analysis of the recorded AE signal and the type of joint rupture. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1848–1857, 2001