Open AccessOptimalisasi Proses Injection Moulding Pada Nanoalumina
Author(s) -
Moh. Jufri
Publication year - 2012
Publication title -
jurnal teknik industri
Language(s) - English
Resource type - Journals
eISSN - 2527-4112
pISSN - 1978-1431
DOI - 10.22219/jtiumm.vol12.no1.16-19
Subject(s) - composite material , materials science , injection moulding , ultimate tensile strength , polypropylene , ball mill , composite number , particle size , particle size distribution , young's modulus , grain size , filler (materials) , tensile testing , polymer , chemistry
Composite is arranged from material with function as matrix that has weaker characteristic and material with fillerfunction that has a function to transfer force from load in matrix. Plastic has more advantages than other materials;those are, able to be formed finely, light in weight, easy to get and the price is cheaper relatively. However, the problem isthe filler that is involved here is still using fiberglass in which it will disturb human health. Alumina dust used here isMerck by particle size of > 0.063 mm, to get nano size then it would be mixed by Mixer Ball Mill for 50 hours and wouldbe measured for dust grain size with particle size analyzer (PSA), then it is dehydrated in the oven by temperature of 80° C. The percentage of nano alumina for each are 1%, 2%, 3%, 4% ,5%,6% and 7%. Furthermore, it is mixed with PP plastic grain that is conducted by internal mixer to ensure the material distribution evenly, then it is poured in hoper in injection moulding machine that is operated in the temperature of 170° C and is injected in sample test moulding. The result of characterization of tensile strength, modulus elasticity and tensile show the decrement by addition of 2–3% of nano alumina in polypropylene matrix.