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Textile sensing glove with piezoelectric PVDF fibers and printed electrodes of PEDOT:PSS
Högskolan i Borås, Akademin för textil, teknik och ekonomi. Swerea IVF AB, Materials department, Mölndal, Sweden. (Textile Materials Technology)
Högskolan i Borås, Akademin för textil, teknik och ekonomi. (Textile Materials Technology)ORCID-id: 0000-0002-0558-942X
Swerea IVF AB, Materials department, Mölndal, Sweden.
2015 (Engelska)Ingår i: Textile research journal, ISSN 0040-5175, E-ISSN 1746-7748, Vol. 85, nr 17, s. 1789-1799Artikel i tidskrift (Refereegranskat) Published
Ort, förlag, år, upplaga, sidor
2015. Vol. 85, nr 17, s. 1789-1799
Nyckelord [en]
textile sensor, smart textile
Nationell ämneskategori
Textil-, gummi- och polymermaterial
Forskningsämne
Textil och mode (generell)
Identifikatorer
URN: urn:nbn:se:hb:diva-4065DOI: 10.1177/0040517515578333ISI: 000361487600003Scopus ID: 2-s2.0-84941924200OAI: oai:DiVA.org:hb-4065DiVA, id: diva2:882473
Tillgänglig från: 2015-12-15 Skapad: 2015-12-15 Senast uppdaterad: 2018-12-01Bibliografiskt granskad
Ingår i avhandling
1. Electrically conductive textile coatings with PEDOT:PSS
Öppna denna publikation i ny flik eller fönster >>Electrically conductive textile coatings with PEDOT:PSS
2015 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

In smart textiles, electrical conductivity is often required for several functions, especially contacting (electroding) and interconnecting. This thesis explores electrically conductive textile surfaces made by combining conventional textile coating methods with the intrinsically conductive polymer complex poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS).

PEDOT:PSS was used in textile coating formulations including polymer binder, ethylene glycol (EG) and rheology modifier. Shear viscometry was used to identify suitable viscosities of the formulations for each coating method. The coating methods were knife coating, pad coating and screen printing. The first part of the work studied the influence of composition of the coating formulation, the amount of coating and the film formation process on the surface resistivity and the surface appearance of knife-coated textiles. The electrical resistivity was largely affected by the amount of PEDOT:PSS in the coating and indicated percolation behaviour within the system. Addition of a high-boiling solvent, i.e. EG, decreased the surface resistivity with more than four orders of magnitude. Studies of tear strength and bending rigidity showed that textiles coated with formulations containing larger amounts of PEDOT:PSS and EG were softer, more ductile and stronger than those coated with formulations containing more binder. The coated textiles were found to be durable to abrasion and cyclic strain, as well as quite resilient to the harsh treatment of shear flexing. Washing increased the surface resistivity, but the samples remained conductive after five wash cycles.

The second part of the work focused on using the coatings to transfer the voltage signal from piezoelectric textile fibres; the coatings were first applied using pad coating as the outer electrode on a woven sensor and then as screen-printed interconnections in a sensing glove based on stretchy, warp-knitted fabric. Sensor data from the glove was successfully used as input to a microcontroller running a robot gripper. These applications showed the viability of the concept and that the coatings could be made very flexible and integrated into the textile garment without substantial loss of the textile characteristics. The industrial feasibility of the approach was also verified through the variations of coating methods.

Ort, förlag, år, upplaga, sidor
Borås: Högskolan i Borås, 2015. s. 46
Serie
Skrifter från Högskolan i Borås, ISSN 0280-381X ; 56
Nyckelord
textile coating, conductive coating, conjugated polymers, ICP, PEDOT:PSS, textile properties, textile sensor, printed electronics, Smart textiles, poly(3, 4-ethylene dioxythiophene)-poly(styrene sulfonate)
Nationell ämneskategori
Teknik och teknologier
Forskningsämne
Textil och mode (generell)
Identifikatorer
urn:nbn:se:hb:diva-19 (URN)9789187525391 (ISBN)9789187525407 (ISBN)
Disputation
2015-03-23, T154, The Swedish School of Textiles, Skaraborgsvägen 3A, Borås, 13:00 (Engelska)
Opponent
Tillgänglig från: 2015-05-19 Skapad: 2015-02-16 Senast uppdaterad: 2015-12-18Bibliografiskt granskad

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Åkerfeldt, MariaLund, AnjaWalkenström, Pernilla

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