Karakterisasi Sifat Mekanis dan Fisis Komposit E-Glass dan Resin Eternal 2504 Dengan Variasi Kandungan Serat, Temperatur dan Lama Curing
Abstrak: The objective of this
research is to characterize the effect of E-glass content variation,
temperatures and curing time on mechanical and physical properties of Polymer
Matrix Composites (PMC) with matrix of eternal resin 2504, reinforcement of
E-glass and mepoxe catalyst of 0,3 %. These mechanical and physical properties
include tensile strength, strain and microstructure of composites. The tests
used include resin test, E-glass test and composites test. Composites were made
by hand-lay-up method with 20, 25, 30 % of fiber variations and 0,3 % catalyst
content. Curing processes were done in an oven with temperature variation of
30, 55, 65, 75, 90, 105, 120 oC and holding time of one and two hours. Tensile
specimens of resin were made according to ASTM D 638 standard and tensile
specimens of composite were made according to ASTM D 3039. The tensile
strengths of eternal resin 2504 varie from 35,7 MPa to 46,6 MPa with strain of
4 to 4,6 %. The tensile strengths of E-glass varie from 3232 MPa to 3597 MPa
with strain of 2,33 to 3,33 %. In general, the
tensile strengths of composite increase if the curing temperatures
increase from 30 to 90oC and these strengths decrease if curing
temperatures are greater than 90 oC. If E-glass content and curing time
increase, so the tensile strength of composite will increase. The highest
tensile strength of composites is 192 MPa for E-glass content of 30 %, curing
temperature of 90 oC and curing time of one hour. This tensile strength
increases to 196 MPa if curing time is two hours. The color of composite does
not change if the curing temperatures are lower than 75oC and this
composites color are yellow if curing temperatures are greater than 90oC.
Penulis: Viktor Malau
Kode Jurnal: jptmesindd100001
