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Titolo:
EFFECT OF THE DEGREE OF CROSS-LINKING ON THE CHARACTERISTICS OF A PVCA CAPACITIVE-TYPE HUMIDITY SENSOR
Autore:
MATSUGUCHI M; SHINMOTO M; SADAOKA Y; KUROIWA T; SAKAI Y;
Indirizzi:
EHIME UNIV,FAC ENGN,DEPT APPL CHEM,3 BUNKYO CHO MATSUYAMA EHIME 790 JAPAN YAMATAKE HONEYWELL CO LTD FUJISAWA KANAGAWA 251 JAPAN
Titolo Testata:
Sensors and actuators. B, Chemical
fascicolo: 1-3, volume: 34, anno: 1996,
pagine: 349 - 355
SICI:
0925-4005(1996)34:1-3<349:EOTDOC>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLY(METHYL METHACRYLATE); WATER SORPTION; POLYMERS;
Keywords:
HUMIDITY SENSOR; CROSS-LINKED PVCA FILM; MOLECULAR SIEVE EFFECT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
M. Matsuguchi et al., "EFFECT OF THE DEGREE OF CROSS-LINKING ON THE CHARACTERISTICS OF A PVCA CAPACITIVE-TYPE HUMIDITY SENSOR", Sensors and actuators. B, Chemical, 34(1-3), 1996, pp. 349-355

Abstract

A cross-linked PVCA film was prepared on a suitable substrate by using a photoirradiation technique and evaluated as a capacitive-type humidity sensor. The sensing characteristics were considerably affected bythe degree of cross-linking in the film. The sensitivity was particularly enhanced up to ca. 95% cross-linking, beyond this the sensitivitydecreased. This has been explained by the variation in the ability toadsorb water with the degree of cross-linking. Similar behavior was observed for the adsorption of organic vapors and the adsorption of thelarger organic vapors was greatly reduced by using the highly cross-linked polymer. This behavior was explained by the molecular sieve effect of the cross-linked film. It was confirmed that the effect of coexistent acetone vapor was considerably smaller for the sensor using highly cross-linked PVCA film.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 20:27:01