ANALISIS SIFAT MEKANIK KARET DARI PENAMBAHAN ASAM GELUGUR SEBAGAI BAHAN PENGGUMPAL LATEKS

Authors

  • Erna Yusniyanti

DOI:

https://doi.org/10.24114/einstein.v2i1.5097

Abstract

a coagulant. This research aim to know the effect of  mixture formic acid and garnicia cambogia to rubber™s mechanical properties according to compound of ASTM 3A. 30% DRC of lateks  crumpled with sour mixture of formic acid and granicia cambogia till perfect Iump. treatment of  mixing of formic acid and garnicia cambogia was 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%. Then the tested of technical properties is done which is Po and PRI. and then mechanical properties was tested which is Tensile Strength, Elongation at Break, Modulus 300%, Tear Resistance, and Hardness. So for the overall properties tested, formic acid can be substituted for granicia cambogia 20%. where the higher the concentration of granicia cambogia the technical properties, mechanical properties of vulcanized getting smaller. Quality of examinee rubber fulfill SIR standard.

Author Biography

Erna Yusniyanti

Jurusan Teknik Sipil Politeknik Negeri Lhokseumawe

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Published

2014-02-01

Issue

Vol. 2 No. 1 (2014): EINSTEIN

Section

Articles

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