Reinforcement of polypropylene with hemp fibres

Yan, Z. L. and Wang, H. and Lau, K. T. and Pather, S. and Zhang, J. C. and Lin, G. and Ding, Y. (2013) Reinforcement of polypropylene with hemp fibres. Composites Part B: Engineering , 46. pp. 221-226. ISSN 1359-8368


Noil hemp fibre (NHF) is a kind of textile hemp fibre after deep degumming from scutched hemp fibre (SHF), mechanically-degummed hemp fibre. Both NHF and SHF with strong mechanical properties are good candidates as reinforcing fibres for plastics such as polypropylene (PP). The PP/NHF and PP/SHF composites were blended via internal mixing process. The effect of fibres on the morphology, thermal resistance and reinforcement of the composites were investigated. PP/NHF composites showed higher impact strength, lower flexural strength than PP/SHF at the corresponding loading because NHF has smaller diameter and better thermal resistance than SHF. Meanwhile, NHF has the similar reinforcement to tensile strength with SHF. The effect of maleic anhydride polypropylene (MAPP) on the fibre-resin interface bonding was also comparatively studied. With increasing amount of MAPP, the tensile, flexural and impact strengths of PP/NHF and PP/SHF increased, respectively. The morphology of PP/SHF and PP/NHF results well showed that MAPP improved the interaction of the fibres with PP through chemical adhesion.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2012 Elsevier Ltd. Permanent restricted access to published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department (Up to 30 Jun 2013)
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - No Department (Up to 30 Jun 2013)
Date Deposited: 15 Oct 2012 05:36
Last Modified: 15 Oct 2014 01:38
Uncontrolled Keywords: hemp fibre; polypropylene matrix composites; mechanical properties; fracture mechanism
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
34 CHEMICAL SCIENCES > 3405 Organic chemistry > 340502 Natural products and bioactive compounds
40 ENGINEERING > 4017 Mechanical engineering > 401706 Numerical modelling and mechanical characterisation
Socio-Economic Objectives (2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints)
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