TENSILE PROPERTIES OF PINEAPPLE LEAF FIBRE PROPERTIES OF PINEAPPLE LEAF FIBRE REINFORCED UNSATURATED...

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Transcript of TENSILE PROPERTIES OF PINEAPPLE LEAF FIBRE PROPERTIES OF PINEAPPLE LEAF FIBRE REINFORCED UNSATURATED...

  • TENSILE PROPERTIES OF PINEAPPLE

    LEAF FIBRE REINFORCED

    UNSATURATED POLYESTER

    Corrosion and Fracture Focus Group

    Januar Parlaungan Siregar,

    Tezara Cionita,

    Dandi Bachtiar, and

    Mohd Ruzaimi Mat Rejab

  • Background of study

    Problem statement

    Objectives

    Scope of study

    Literature review

    Methodology

    References

    CONTENT

  • BACKGROUND OF STUDY

    The development of natural fibre composites has beenin the limelight for this recent years since there aremany studies conducted on natural fibres to replacesynthetic fibres as reinforcement. Natural fibres aremore economical when used as reinforcement inpolymer composites compared with synthetic fibres.

    Recently, the research community has shown growinginterest in using PALF to reinforce thermoplastic andthermoset polymer composites due to their excellentmechanical properties compared to those of othernatural fibres.

  • PROBLEM STATEMENT

    Fibre length, fibre content and interfacial

    adhesion between fibre and polymer matrix are

    the three factors that determine the strength of

    natural fibre reinforced polymer composites.

  • OBJECTIVES OF THE STUDY

    The main objectives of this study are :

    To investigate the tensile properties of

    pineapple leaf fiber reinforced unsaturated

    polyester composite.

    To compare the effect of fibre length and

    fibre content of pineapple fiber reinforced

    unsaturated polyester composite.

  • SCOPE OF THE STUDY

    Fabricate the specimen with different variable

    of fibre length and fibre content of PALF/UP

    composite using hand lay-up process

    Prepare tensile tests specimen according to

    ASTM D3039.

    Analysis and collect data for the tensile

    properties of PALF/UP composite.

  • LITERATURE REVIEW

  • Natural fiber

    Vegetables or plant fibers Mineral FibersAnimal fibers

    SeedFruit BastLeafWood Stalk Cane,grass &

    reed fibres

    Coir

    Cotton

    Kapok

    Pineapple

    Abaca

    Sisal

    Flax

    Hemp

    Jute

    Ramie

    Kenaf

    Wheat

    Maize

    Barley

    Bamboo

    Bagasse

    Sabei

    Source : Akil (2011)

    Classification of natural fibers

  • EXAMPLE OF THE PLANT FIBER

    Jute plant Sisal plant

    Flax plant Pineapple leaf

    Mengkuang plant

    Source : wikimedia

    Source : Sheltami, 2012)

  • Cont.. LITERATURE REVIEW

    Pineapple leaf fibre (PALF) is one of the fibre have

    been extract from the pineapple plant (Ananas

    comosus) from the Bromeliaceae family (Arib et al.,

    2006).

    Pineapple leaf fibres have greater content of

    cellulose compared to other fibre and play an

    important role in fruit weight and the point that the

    fruit are not perishable (Reddy et al., 2005)

    Traditional people use PALF leaves for making rope,

    mats and weaving hats.

  • (Source: Saira et al., 2012)

  • Properties of selected natural and manmade fibers

    (Source: Nanthaya et al., 2012)

  • Source: (Ku et al., 2011)

  • METHODOLOGY

  • FLOW CHART

  • MOULD OF THE SPECIMEN

    360mm

    260 m

    m

    200 m

    m

    300 mm

    Glass mould

    Thickness 5 mm

    3D picture for mould

    specimen

    2D picture for mould

    specimen

  • STANDARD TENSILE TEST

    SPECIMEN

    200 mm

    30

    mm

    5 mm

    Specimen shapes and dimensions of ASTM D3039

    Speed of the tensile test is 1mm/min

    7 specimen each test

  • STANDARD TENSILE TEST

    SPECIMEN

    Universal tensile testing machine INSTRON

    model 3369.

  • UP MPEKr PALF

    Glass mould

    Pure UP5% PALF

    10% PALF fiber 15% PALF fiber

    T-JAW machineSpecimen for

    tensile test Universal testing machine

    Instron 3369

    Mixing process

    Product

    Cutting processTensile test

    PREPARATION FOR TENSILE TEST

  • Results

    Tensile properties of PALF/UP composites with different fibre length

  • Tensile properties of PALF/UP composites with different fibre length

  • Discussions

    The addition of 5% fibre with < 0.5 mm length of fibre in UP

    composite, the tensile strength and tensile modulus is

    about 29.80 MPa and 981 MPa respectively.

    The addition of 0.5-1 mm and 1-2 mm size of fibre

    significantly increase of the tensile strength and tensile

    modulus of composite from 35.40 MPa to 42.30 MPa and

    1020 MPa to 1344 MPa respectively

    The result of the investigation shows that the increase size

    of fibre from < 0.5 mm to 1-2 mm has increase the tensile

    strength of PALF/UP composites.

  • Discussions

    The increase of fibre content from 0 to 15 %vol. has decreased the tensile

    strength and tensile modulus of PALF/UP composites.

    The addition of 5% PALF in UP composites the tensile strength has decreased

    of 25 % (42.30 MPa). The tensile modulus increase by 8%, from 1237 MPa to

    1344 MPa, when the fibre content increased from 0% to 5%.

    The tensile strength and tensile modulus has decreased with the increase of

    the fibre volume fraction of 5 to 15%. The highest fibre content (15%) in UP

    composites has lowest tensile strength (26.10 MPa) and tensile modulus (869

    MPa).

  • Conclusions

    The decrement of tensile strength on natural fibre composite is due to the

    weak bonding between the fibre and matrix. In addition, fibre

    agglomerations also lead to uneven dispersion in matrix, thus weakening

    the tensile strength of the material

    The results of this study indicate that the fibre length has profound impact on

    the properties of composites. Beside holding the fibres together, the matrix

    has the important function of transferring applied load to the fibres. The

    efficiency of a fiber reinforced composite depends on the fiber-matrix

    interface and the ability to transfer stress from the matrix to the fiber

  • REFERENCES

    1) Arib, R.M.N., Sapuan, S.M., Ahmad, M.M.H.M., Parida, M.T., and KhairulZaman, H.M.D. 2004. Mechanical properties of pineapple leaf fibrereinforced polypropylene composites. Materials and Design, 27:391396

    2) Reddy, N., Yang, Y. 2005. Biofibers from agricultural by products forindustry applications.Trends Biotechnol, 23: 2227 Ratna Prasad.A.V. andMohana Rao.K., Mechanical properties of natural fibre reinforcedpolyester composites: Jowar,sisal and bamboo, Materials and Design,32,8-9,46584663.

    3) Nanthaya, K., and Taweechai A. 2012. Utilisation of pineapple leaf wastefor plastic reinforcement. A novel extraction method for short pineappleleaf fiber. Industrial Crops and Products, 40 :55 61.

    4) Ku, H., Wang, H., Pattarachaiyakoop, N., and Trada, M. 2011. A review onthe tensile properties of natural fiber reinforced polymer composites.Composites, 42: 856873.

  • Thank you

  • Any Questions???