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Machine-Washable PEDOT:PSS Dyed Silk Yarns for Electronic Textiles.

ABSTRACT: Durable, electrically conducting yarns are a critical component of electronic textiles (e-textiles). Here, such yarns with exceptional wear and wash resistance are realized through dyeing silk from the silkworm Bombyx mori with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. A high Young's modulus of approximately 2 GPa combined with a robust and scalable dyeing process results in up to 40 m long yarns that maintain their bulk electrical conductivity of approximately 14 S cm-1 when experiencing repeated bending stress as well as mechanical wear during sewing. Moreover, a high degree of ambient stability is paired with the ability to withstand both machine washing and dry cleaning. For the potential use for e-textile applications to be illustrated, an in-plane thermoelectric module that comprises 26 p-type legs is demonstrated by embroidery of dyed silk yarns onto a piece of felted wool fabric.

SUBMITTER: Ryan JD

PROVIDER: S-EPMC5355901 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Machine-Washable PEDOT:PSS Dyed Silk Yarns for Electronic Textiles.

Ryan Jason D JD Mengistie Desalegn Alemu DA Gabrielsson Roger R Lund Anja A Müller Christian C

ACS applied materials & interfaces 20170228 10

Durable, electrically conducting yarns are a critical component of electronic textiles (e-textiles). Here, such yarns with exceptional wear and wash resistance are realized through dyeing silk from the silkworm Bombyx mori with the conjugated polymer:polyelectrolyte complex PEDOT:PSS. A high Young's modulus of approximately 2 GPa combined with a robust and scalable dyeing process results in up to 40 m long yarns that maintain their bulk electrical conductivity of approximately 14 S cm<sup>-1</su ...[more]

PMID: 28245105

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