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Conditions for the ...
Conditions for the stabilisation of lignin-cellulose prefibres for carbon fibre production
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- Bengtsson, Andreas (författare)
- RISE,Bioraffinaderi och energi,KTH Royal institute of technology, Sweden
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- Sjöholm, Elisabeth, Associiate Professor (författare)
- RISE,Biobaserade material
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: 15th European workshop on lignocellulosics and pulp. ; , s. 111-114
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Stabilisation of the prefibre is a time-consuming step in carbon fibre (CF) production. In this paper the stabilisation condition of dry-jet wet-spun lignin-cellulose (LC) prefibres (70:30 t%) are reported. The impact of prefibre-impregnation by ammonium dihydrogen phosphate (ADHP) and various thermal conditions were evaluated by measuring the yield and mechanical properties of the final CFs. The addition of ADHP improved the CF yields from 32-40 wt% to 45-47 wt% but had a slight negative impact on the tensile modulus (TM) whereas no significant difference in tensile strength (TS) was observed. The absence of fibre fusion and glass transition temperature (Tg) indicate successful stabilisation of all prefibres. This implies possibilities of using short stabilisation times of LC prefibres in CF production.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Nyckelord
- ADHP
- carbon fibre
- cellulose
- lignin
- stabilisation
- tensile properties
Publikations- och innehållstyp
- vet (ämneskategori)
- kon (ämneskategori)