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[1]王志栋1,2,金毕青1,等.高分子基质和光学-氧压敏感涂料性能的关系[J].武汉工程大学学报,2015,37(03):42-48.[doi:10. 3969/j. issn. 1674—2869. 2015. 03. 009]
 ,,et al.Relationship between polymer matrix and properties of pressure sensitive paints[J].Journal of Wuhan Institute of Technology,2015,37(03):42-48.[doi:10. 3969/j. issn. 1674—2869. 2015. 03. 009]
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高分子基质和光学-氧压敏感涂料性能的关系(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年03期
页码:
42-48
栏目:
材料科学与工程
出版日期:
2015-04-23

文章信息/Info

Title:
Relationship between polymer matrix and properties of pressure sensitive paints
文章编号:
1674—2869(2015) 03—0042—07
作者:
王志栋1金毕青1李亚庆1杨 鹏2史 燚2刘治田1*陈柳生2*
1.武汉工程大学材料科学与工程学院,湖北 武汉 430074;2.中国科学院化学研究所,北京 100190
Author(s):
WANG Zhi-dong1JIN Bi-qing1LI Ya-qing1YANG Peng2SHI Yi2LIU Zhi-tian1CHEN Liu-sheng2
1.School of Material Science and Engineering,Wuhan Institute of Technology,Wuhan 430074,China2. Institute of Chemistry,Chinese Academy of Sciences, Beijing 100190,China
关键词:
压力敏感涂料荧光探针高分子基质扩散控制机理响应时间
Keywords:
pressure sensitive paints luminescence probe polymer matrix diffusion-controlled mechanism response time
分类号:
G633.8,TQ63
DOI:
10. 3969/j. issn. 1674—2869. 2015. 03. 009
文献标志码:
A
摘要:
基于氧对荧光的淬灭作用,由荧光探针和高分子基质组成的氧压敏感涂料(PSP),是用于风洞测量空气动力学模型表面空气压力分布的新型压力传感器.研究荧光探针和高分子基质对PSP压力灵敏度的影响,可以为提高压力传感器的测量精度提供向导.实验将聚甲基苯基硅氧烷、三氟氯乙烯-醋酸乙烯酯、聚二甲基硅氧烷和聚甲基氟丙基硅氧烷分别与芘丁酸(PYB)和N,N,N’,N’-四甲苯基联苯胺(TBD)两种荧光探针共混,观察其荧光发射的氧猝灭作用.结果表明,PYB在上述聚合物中的氧猝灭灵敏度和响应时间随聚合物的透氧性而变化,属于扩散控制机理;在氮-氧转换时荧光猝灭时间响应也与聚合物的氧透过率一致;而TBD与4种聚合物的相互作用导致荧光发射光谱不同程度的位移,即TBD/聚合物体系的氧猝灭灵敏度与探针-聚合物的相互作用相关,而聚合物的氧透过率影响不明显.
Abstract:
Based on oxygen luminescence quenching, pressure sensitive paints (PSP) composed of luminescence probes and polymer matrix is a kind new functional material, which has been applied to the measurements of surface pressure distribution in experimental hydromechanics. The effect of luminescence probes and polymer matrix for pressure sensitivity can provide a theoretical basis for improving the measurement accuracy of the pressure sensor. In this presentation, the luminescence probes of pyrenebutyric acid (PYB) and tetrakis(p-tolyl)benzidine(TBD) were composed within polymethylphynylsiloxxane, trifluorochloroethylene-vinly acetate copolymer,polydimethylsiloxane and polymethyltrifluoro-propylsiloxane, respectively, and then the oxygen quenching behaviors of the luminescent emissions for the PSPs were observed quantitatively by using the fluorescence spectroscopy. It is found that the Stern-Volmer bimolecular quenching constant, KSV, and response time depended on oxygen permeability of the polymers for PYB/polymer films, corresponding to a diffusion-controlled mechanism. Otherwise, the interaction between TBD and the polymer matrix caused the emission shift in the emission spectra, i.e. charge-transfer takes place in the PSPs and here KSV depended on their electric state of the composites, it means the oxygen quenching of the TBD/polymer PSPs followed a charge-transfer controlled mechanism.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-03-03基金项目:国家自然科学基金(51003080);湖北省青年科技晨光计划(2014.5);武汉市应用基础研究(2015010101010018);     武汉市软科学研究计划(2015040606010250)作者简介:王志栋(1989-),男,湖北荆门人,硕士研究生.研究方向:功能高分子材料.*通信联系人
更新日期/Last Update: 2015-04-26