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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/1440

Title: Development of hemp fibre - PP nonwoven composites - Conference Paper
Authors: Hargitai, H
Racz, I
Keywords: Composites
Renewable resources
Structure-property relations
Issue Date: Sep-2005
Publisher: Polymers for Advanced Technologies International Symposium
Citation: Hargitai, H and Racz, I. 2005. Development of hemp fibre - PP nonwoven composites. Proceeding of the 8th Polymers for Advanced Technologies International Symposium, Budapest, Hungary, 13-16 September 2005
Abstract: Non-woven mats from hemp and polypropylene fibres in various proportions were produced and hot pressed to make composite material. The effect of hemp fibre content and anisotropy in non-woven mats resulting from the carding technology were examined on the basis of the three-point bending, tensile and impact properties of the resultant composite materials. Because of the hydrophilic nature and poor dimensional stability of cellulosic fibres due to swelling, the effect of water sorption on mechanical performances was also investigated. Optimal mechanical properties were achieved in composites made from 40-50% of hemp fibre by weight. As it was expected, better mechanical properties were found in the specimens cut from the composite sheets parallel to the direction of carding. A strong decrease in three point bending properties was noticed after immersing the composite samples in distilled water for 19 days, while the impact strength increased. Double carding of raw materials resulted in a decreased anisotropy in composite material.
URI: http://hdl.handle.net/10204/1440
Appears in Collections:Fibres and textiles
General science, engineering & technology

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