Tujuan utama kajian ini ialah untuk mengkaji kesan minyak tanah, biodiesel, air suling
dan keadaan suhu bilik terhadap tingkah laku penyerapan komposit dan juga sifat
mekanikal komposit yang diperkukuhkan dengan E-glass. Komposit lamina ini dibuat
melalui bahan E-glass yang terdiri daripada dua jenis resin iaitu polyester dan epoxy
resin. Pelbagai cara telah dijalankan termasuk lah tradisional “Hand-Layup”, “Resin
Infusion” dan juga “Vacuum Resin Transfer Molding”. Kandungan fiber di dalam setiap
komposit telah dikara menggunakan kaedah ketumpatan dan juga pembakaran resin.
Kesemua sampel telah direndamkan di dalam tiga jenis kandungan dan ketepatan
“Fick’s Law” telah dikaji. Kesemua sampel telah ditinggalkan sehingga semuanya
benar-benar tepu. Ujian ketegangan telah dijalankan dengan menggunakan Instron
Tensile Machine (UTM). Semua data dan maklumat daripada ujian mekanikal telah
diplot kan di dalam graf yang terdiri daripada “stress versus strain”, dan carta bar “
average tensile stress”. Data yang didapati telah dikaji dan perbandingan mengenai
kedua-dua resin yang direndam di dalam tiga keadaan telah dibuat. Didapati bahawa
kesemua specimen yang telah direndam di dalam minyak tanah, biofuel, air suling dan
dalam keadaan suhu bilik tidak mempunyai perubahan yang ketara terhadap ‘tensile
stress’ dan ‘tensil modulus’ dan oleh itu komposit yang diperkukuhkan dengan E-glass
ini sesuai digunakan untuk membuat tangki minyak bagi aplikasi marin dan
aeroangkasa.
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The main purpose of this study is to investigate the effects of kerosene, biofuel, distilled
water and room temperature condition on the moisture behavior and mechanical
properties of the E-glass reinforced composite. A laminate composite from the E-glass
composite material is fabricated that consist from two type of resins which are
polyester-based resin and epoxy-based resin. A variety method has been conducting
which are the traditional hand layup, resin infusion (RI) and vacuum resin transfer
molding. The fiber content for each methods is calculated by using density method and
resin burn-off method. The specimens is immersed in the three type of solution and the
accuracy of Fick’s Law on moisture diffusion is studied. All specimen were left until it
is fully saturated respective to its solution. A tensile test was performed subsequently by
using the Universal Tensile Machine (Instron) (UTM). The data obtain from the
mechanical test were plotted in a graphical approach by using the tensile stress versus
strain graph and average tensile stress bar chart. The data obtained were studied and a
comparison of data are being made between both type of resin and also between the
three different solutions. It was found that there are no significant change in tensile
stress and tensile modulus for all the specimen being immersed in kerosene, biofuel and
distilled water and in room condition hence this E-glass fiber reinforced composite can
be used in manufacturing the fuel tank structure both in marine and aerospace
application.
Tensile properties of composite laminates due to fuel attack / Nurul Atiqah Ishak