2005 12th International Symposium on Electrets最新文献_第7页

Voided cyclo-olefin polymer films: ferroelectrets with high thermal stability 空心环烯烃聚合物薄膜:具有高热稳定性的铁驻极体

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612315

M. Wegener, M. Paajanen, O. Voronina, R. Schulze, W. Wirges, R. Gerhard-Multhaupt

引用次数: 19

Chemical treatment and improved charge storage properties of cellular polypropylene electret film 胞状聚丙烯驻极体膜的化学处理及电荷存储性能的改善

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612314

Z. An, Z. Xia, Minmin Tang, X. Qiu, Feipeng Wang

引用次数: 3

Fabrication of mesoscopic block copolymer regular structures by dewetting and phase separation 用脱湿和相分离法制备介观嵌段共聚物规则结构

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612329

A. Carvalho, M. Pereira-da-Silva, R. Faria

引用次数: 0

Ferroelectrets: adjustment of electric, elastic and piezoelectric properties by means of foam-structure modification 铁驻极体:通过改变泡沫结构来调整电、弹性和压电性能

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612339

M. Wegener, W. Wirges, A. Mellinger, M. Winkler, R. Gerhard-Multhaupt

引用次数: 2

Dieletric and physicochemical study of the hydration process in cellulose 纤维素水化过程的介电和物理化学研究

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612366

P. Vartzeli-Nikaki, S. Kripotou, A. Konsta

引用次数: 0

Organic material as gas sensor for farm application 有机材料作为农业应用的气体传感器

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612419

M.P. Regaco, E. Dirani, F. Fonseca, A. M. De Andrade

引用次数: 3

Non-dispersive transport in poly(2-methoxy,5-(2-ethyl-hexyloxi)-1-4 phenylene vinylene) studied with the time of flight technique 用飞行时间技术研究了聚(2-甲氧基，5-(2-乙基-己基氧基)-1-4 -苯基-乙烯基)中的非分散传输

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612399

G. C. Faria, L. F. Santos, R. Faria, A. D. de Andrade, S. Mergulhão

引用次数: 0

Synthesis and characterization of modified polymer of p-bromo-styrene by "living" free radical and Suzuki reaction 活自由基与铃木反应改性对溴苯乙烯聚合物的合成与表征

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612439

S. Possidonio, L. Péres, W. Hui

引用次数: 0

Nanostructured films of poly(o-ethoxyaniline) and sulfonated polystyrene as sensing parts for taste sensor development 聚邻乙氧基苯胺和磺化聚苯乙烯纳米结构薄膜作为味觉传感器的传感部件

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612412

L. Paterno, N.K.L. Wiziacki, F. Kanno, F. Fonseca, L. Mattoso

{"title":"Nanostructured films of poly(o-ethoxyaniline) and sulfonated polystyrene as sensing parts for taste sensor development","authors":"L. Paterno, N.K.L. Wiziacki, F. Kanno, F. Fonseca, L. Mattoso","doi":"10.1109/ISE.2005.1612412","DOIUrl":"https://doi.org/10.1109/ISE.2005.1612412","url":null,"abstract":"Nanostructured films of poly(o-ethoxyaniline) POEA and sodium sulfonated polystyrene PSS produced by the layer-by-layer technique (LBL) have been employed as part of sensory units in a taste sensor system, also known as electronic tongue (ET). The sensitivity of these films to standard taste solutions has been investigated by means of electrical capacitance measurements. At this moment we have observed that the film architecture plays an important role on the film electrical response to different tastes, which also depended on the frequency of the input signal. For instance, the sensitivity of films to sour (HCl 5mM) and salty (NaCl 5 mM) tastes increased as the number of POEA/PSS layers increased when they were interrogated in low frequency (100 Hz). However, at higher frequencies, above 1 kHz, the film sensitivity seemed to be independent on the number of POEA/PSS layers. Also, we have investigated the performance of these films in terms of reprodueibility and repeatability of their electrical response to different tastes. In general, the electrical response of POEA/PSS films has been highly reproducible and repetitive independently on the film architecture and frequency of interrogation. An array containing five LBL POEA/PSS films with different numbers of polymeric layers was able to distinguish liquids according to their taste and was also able to quantify NaCl at concentrations much lower than the human detection capacity. Such results have been demonstrating the potentiality of these films on the development of taste sensor systems.","PeriodicalId":364651,"journal":{"name":"2005 12th International Symposium on Electrets","volume":"723 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121655977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New materials with piezoelectric properties 新型压电材料

2005 12th International Symposium on Electrets Pub Date : 2005-09-11 DOI: 10.1109/ISE.2005.1612305

D. Farrar, M. Yu, J. West, I. Busch-Vishniac, P. Biermann, J. Arvelo

{"title":"New materials with piezoelectric properties","authors":"D. Farrar, M. Yu, J. West, I. Busch-Vishniac, P. Biermann, J. Arvelo","doi":"10.1109/ISE.2005.1612305","DOIUrl":"https://doi.org/10.1109/ISE.2005.1612305","url":null,"abstract":"The discovery of a piezoelectric response in low density polypropylene (LDPP) suggests that other material, properly treated, might also exhibit both piezoelectric and pyroelectric properties. The search for new materials is inspired by the relatively low temperature (/spl sim/70degC) depolarization of LDPP and the desire to choose independently the mechanical and electrical properties of a transducer material. Composites of two different materials have been suggested to create a material with desirable mechanical properties and high temperature charge storage capabilities. These combination materials are designed primarily to improve thermal and mechanical stability and to produce a Young's modulus suitable for a given application. It is well known that a small class of polymers (teflon FEP and PTFE) and SiO/sub 2/ have excellent charge storage properties. We investigate the piezoelectric and charge storage properties of multilayer teflon FEP and PTFE with various interface materials of a desired shape, size and compliance. Voided teflon FEP, such as is used for insulation in high end audio cables, is also under investigation. Corona charging has been reported in the literature as the desired method to breakdown the air voids in LDPP and other materials. We use a method of charging which allows even higher fields across the sample by applying a DC voltage directly to the sample. Destructive breakdown is avoided by limiting the current through the sample. Biopolymers also offer a variety of possibilities of forming a composite in a manner that clearly separates the electroactive and bulk mechanical properties.","PeriodicalId":364651,"journal":{"name":"2005 12th International Symposium on Electrets","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116062066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1