Secara umumnya, bahan komposit adalah bahan yang terdiri daripada dua atau lebih
bahan konstituen dengan sifat yang berbeza. Bahan komposit kerap digunakan dalam era
semasa kerana memiliki sifat-sifat yang amat berguna, seperti rasio kekuatan-berat yang
tinggi, rintangan kakisan, sifat mudah terbakar, tahan lasak dan lain-lain. Dalam kajian
ini, sifat-sifat mekanikal yang dimiliki oleh bahan komposit bio, seperti sabut , dan serat
kelapa sawit, telah dianalisis dan dinilai dengan teliti. Kaedah fabrikasi, seperti acuan
mampatan dan kaedah pemindahan resin telah digunakan untuk menghasilkan spesimen
untuk ujian dan analisis. Ujian impak, ujian tegangan dan ujian mampatan telah
dijalankan semasa analisis dan penilaian proses. Keputusan daripada tegangan, mampatan
dan impak telah dikaji dan diplot sebagai graf untuk analisis. Carta bar yang mengandungi
sifat-sifat spesifik mekanikal telah diplotkan untuk dibandingkan antara GFRC, HPRC,
HCRC, PFRC, CFRC. Selain itu, hibridisasi serat semula jadi telah menunjukkan
peningkatan yang ketara dalam ujian tegangan dan impak, manakala bagi ujian mampatan,
tiada perubahan ketara telah dikenalpasti. Akhirnya, bumper kereta telah dihasilkan
berdasarkan kepada komposit bio and komposit hibrid.
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Generally, composite material is a material made from two or more constituent materials
of different properties. Composite materials are highly utilized in the current era due to
their tailored specified properties, such as high strength-to-weight, corrosion resistance,
inflammable properties, wear resistance and etc. In this study, mechanical properties of
bio composite materials, such as coir, and palm oil fibre, are to be analysed and evaluated
thoroughly. Fabrication methods, such as compression moulding and resin film infusion
method were used to manufacture the specimens for the test and analysis. Impact test,
tensile test, and compression test were carried out simultaneously during analysis and
evaluation process. The results from tensile, compression and impact testing were
tabulated and plotted into graphs for analysis. Bar charts which include specific
mechanical properties were plotted to compare the properties of the composites (GFRC,
HPRC, HCRC, PFRC, CFRC). Moreover, hybridization of natural fibre has shown
significant increase in tensile and impact testing, whereas for compression testing, no
significant change was identified. Eventually, a crash resistance car bumper will be
developed based on these bio composite and hybrids.
Development of crash resistance car bumpers based on bio-composites and hybrids / Pang Chin Wee