Microstructure, mechanical behaviour, damage mechanisms of polypropylene/short hemp fibre composites: Experimental investigations

2012 ◽  
Vol 31 (22) ◽  
pp. 1576-1585 ◽  
Author(s):  
Florian Gehring ◽  
Vanessa Bouchart ◽  
Florence Dinzart ◽  
Pierre Chevrier
Keyword(s):  
Mechanical Behaviour ◽  
Experimental Investigations ◽  
Damage Mechanisms ◽  
Hemp Fibre ◽  
Fibre Composites

scholarly journals Durability of Basalt/Hemp Hybrid Thermoplastic Composites

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 603 ◽  
Author(s):  
Claudia Sergi ◽  
Jacopo Tirillò ◽  
Maria Carolina Seghini ◽  
Fabrizio Sarasini ◽  
Vincenzo Fiore ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Uv Radiation ◽  
High Density Polyethylene ◽  
High Density ◽  
Thermoplastic Composites ◽  
Accelerated Ageing ◽  
Special Focus ◽  
Scanning Calorimetry ◽  
Hemp Fibre ◽  
Fibre Composites

The Achilles heel of thermoplastic natural fibre composites is their limited durability. The environmental degradation of the mechanical properties of hemp and hemp/basalt hybrid-reinforced high-density polyethylene (HDPE) composites has been investigated with a special focus on the effects of water ageing and accelerated ageing, including hygrothermal and UV radiation. Modification of the matrix was carried out using a maleic anhydride high-density polyethylene copolymer (MAPE) as a compatibilizer. Hybridization of hemp fibres with basalt fibres and the incorporation of MAPE were found to significantly decrease the water uptake (up to 75%) and increase the retention of mechanical properties after accelerated ageing. Secondary crystallization phenomena occurring in the composites, as confirmed by differential scanning calorimetry (DSC) analysis, were able to counteract the severe combined effects of hygrothermal stress and UV radiation, with the exception of hemp-fibre composites where permanent damage to the fibres occurred, with 2% and 20% reduction in tensile strength and modulus, respectively, for a 30 wt % hemp fibre-reinforced HDPE.

Thermoplastic Elium Recycling: Mechanical Behaviour and Damage Mechanisms Analysis by Acoustic Emission

2021 ◽  
pp. 53-61
Author(s):  
Sami Allagui ◽  
Abderrahim El Mahi ◽  
Jean-luc Rebiere ◽  
Moez Beyaoui ◽  
Anas Bouguecha ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Mechanical Behaviour ◽  
Damage Mechanisms

Why are designers fascinated by flax and hemp fibre composites?

2016 ◽  
Vol 83 ◽  
pp. 193-205 ◽  
Author(s):  
Lut Pil ◽  
Farida Bensadoun ◽  
Julie Pariset ◽  
Ignaas Verpoest
Keyword(s):  
Hemp Fibre ◽  
Fibre Composites
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