UV Reflection and Fluorescence Techniques for Failure Mode Analysis in Polymeric Adhesive Joints

机译：紫外反射和荧光技术在聚合物胶接接头失效模式分析中的应用

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IR-ATR and fluorescence spectra clearly show evidence for transfer of more crystalline PET on PE side, when PET/PE/PET joints were peeled off. PET sides remain clean from PE transfer. This trend is true in non-treated PE/PET joints as well as in ehromate treated joints, regardless of the bonding temperature in the range of 180℃ to 230℃. Heating during joint formation may induce more crystallinity on PET surface which gets transferred to PE, when the joint is peeled off. Thus the failure in PET/PE/PET joints seems to be cohesive failure through PET at very near the interface or at least a mixed mode failure.

机译：当剥离PET / PE / PET接头时，IR-ATR和荧光光谱清楚地显示出更多结晶的PET在PE侧转移的证据。从PE转移开始，PET面保持清洁。这种趋势在未经处理的PE / PET接头以及经过水润酸盐处理的接头中都是正确的，而不管粘结温度在180℃至230℃的范围内如何。接头形成期间的加热可能会在PET表面上引起更多的结晶度，当接头被剥离时，PET表面会转移到PE中。因此，PET / PE / PET接头的失效似乎是由于非常靠近界面的PET引起的内聚失效，或者至少是混合模式失效。

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来源
《22nd Annual Meeting of the Adhesion Society, Feb 21-24, 1999, Panama City Beach, Florida》|1999年|p.195-197|共3页
会议地点 Panama FL(US);Panama FL(US)
作者
Chang Nam Jeong; Chong S. P. Sung; Nak-Ho Sung;
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作者单位

Polymer Program Institute of Material Science University of Connecticut Starrs, CT 06269-3136;

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原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
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UV Reflection and Fluorescence Techniques for Failure Mode Analysis in Polymeric Adhesive Joints

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