Use of 2-(6-mercaptohexyl) malonic acid to adjust the morphology and electret properties of cyclic olefin copolymer and its application to flexible loudspeakers
學年 98
學期 2
出版（發表）日期 2010-05-01
作品名稱 Use of 2-(6-mercaptohexyl) malonic acid to adjust the morphology and electret properties of cyclic olefin copolymer and its application to flexible loudspeakers
作品名稱（其他語言）
著者 Sheu, B. C.; Lin, C. C.; Fu, Y. H.; Lee, S. Y.; Lai, H. C.; Wu, R. S.; Liu, C. H.; Tsai, J. C.; Lin, S.
單位 淡江大學化學學系
出版者 Bristol: Institute of Physics Publishing Ltd.
著錄名稱、卷期、頁數 Smart Materials and Structures 19(5), 055007(9pages)
摘要 Recent uses of flexible electret loudspeakers in futuristic applications have garnered much interest for these novel loudspeakers. In this paper, a novel thin film processing method was developed to improve the performance of an electret diaphragm. This paper discusses the relationship between the charge storage and the additive concentration. A cyclic olefin copolymer (COC) thin film containing an additive such as 2-(6-mercaptohexyl) malonic acid was prepared using a spin-coating process. Furthermore, attention was directed towards the processing conditions which were found to have an important role and are related to the self-assembly and micelle formation behavior of the additives in the COC. In the present study, thin films of 13 νm thickness were charged by a corona method. Compared with a reference thin film of pure COC, results indicated that when a 3497 mgkg -1 additive was added to the COC matrix, the obtained surface potential was 71% higher. Thus, the results show that a COC + additive thin film leads to a much improved charge storage. It appears to be an inexpensive and relatively easy way to form a thin structure for developing novel flexible electret loudspeakers.
關鍵字 Additive concentrations;Charge storage;Cyclic olefin copolymers;Electret properties;Malonic acid;matrix;Micelle formation;Processing condition;Spin-coating process;Thin structure;Thin-film processing;Acids;Additives;Carboxylic acids;Coatings;Copolymerization;Electrets;Loudspeakers;Olefins;Organic polymers;Processing;Thin films;Polyetherimides
語言 en
ISSN 0964-1726
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Lee, Chih-Kung
審稿制度
國別 GBR
公開徵稿
出版型式 紙本
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