Embrittlement of polypropylene fibre during thermal oxidation
Source abstract
Abstract
Polypropylene (PP) fibres for geotextile applications were oxidized under two exposure conditions: 110 °C in air under atmospheric pressure and 80 °C under pure oxygen at 5 MPa pressure corresponding to two distinct ISO standards. Fibre ageing has been monitored by rheometric molar mass, WAXS and tensile measurements. The results put in evidence the existence of predominant chain scission, chemicryrallization and embrittlement, the latter occurring at a structural state (M W = 130 kg mol−1, crystallinity ratio 80%) almost independent of exposure conditions. The relationships between all processes are discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer crystallization and properties · Natural Fiber Reinforced Composites · Structural Behavior of Reinforced Concrete
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References (25)
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