Immobilizing a Fluorescent Dye Offers Potential to Investigate the Glass/Resin Interface.
Immobilizing a Fluorescent Dye Offers Potential to Investigate the Glass/Resin Interface.
复制标题
固定荧光染料为研究玻璃/树脂界面提供了潜力。
DOI：
10.1006/jcis.1999.6577
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发表时间：
2000
影响因子：
9.9
通讯作者：
Parnas
中科院分区：
文献类型：
--
作者：
Lenhart;van Zanten JH;Dunkers;Zimba;James;Pollack;Parnas
硅烷偶联剂通常应用于玻璃纤维以促进纤维/树脂粘合并增强复合部件的耐久性。在这项研究中，偶联剂多层玻璃上掺杂痕量水平的二甲基氨基硝基芪（DMANS）荧光团。通过将荧光团分子系在三乙氧基硅烷偶联剂上，将荧光团固定在玻璃表面上，从而产生DMANS/硅烷偶联剂分子（DMSCA）。然后用常用的偶联剂稀释DMSCA，并接枝到玻璃显微镜盖玻片上，以创建模型复合材料界面。从固定的DMSCA的荧光中的53 nm的蓝移可以遵循在环氧树脂覆盖层的固化过程中，使这种技术的潜力，以监测复合材料加工过程中的纤维/树脂界面的性能。这些偶联剂层上的接触角测量在DMSCA分子的存在或不存在下是相似的，这表明痕量水平的荧光探针不影响层的结构。固定化的DMSCA分子在溶液中的表现类似于DMANS前体。两者在更极性的环境中都显示出更长波长的荧光。版权所有2000学术出版社。
Silane coupling agents are commonly applied to glass fibers to promote fiber/resin adhesion and enhance durability in composite parts. In this study, a coupling agent multilayer on glass was doped with trace levels of the dimethylaminonitrostilbene (DMANS) fluorophore. The fluorophore was immobilized on the glass surface by tethering the molecule to a triethoxy silane coupling agent, creating the DMANS/silane coupling agent molecule (DMSCA). DMSCA was then diluted with commonly used coupling agents and grafted to a glass microscope coverslip to create a model composite interface. A 53-nm blue shift in fluorescence from the immobilized DMSCA can be followed during cure of an epoxy resin overlayer, giving this technique potential to monitor the properties of the fiber/resin interface during composite processing. Contact angle measurements on these coupling agent layers were similar in the presence or absence of the DMSCA molecule, suggesting that trace levels of the fluorescent probe did not affect the structure of the layer. The immobilized DMSCA molecule behaved similarly to the DMANS precursor in solution. Both showed longer wavelength fluorescence in more polar environments. Copyright 2000 Academic Press.
影响因子：
7.4
作者：
Shortreed, M;Kopelman, R;Hoyland, B
通讯作者：
Hoyland, B