Effect on Heat Treatment on Physical and Mechanical Properties of Planted Teak Wood

Abstract

This research aims to study the physical and mechanical properties of Teak wood plantation treated using a hot press. The factors during the production include press temperature (A), which can be either 100°C, 120°C or 150°C, press pressure (B) of either 1, 2 or 3 MPa, and press time(C) of either 5, 8 or 10 minutes in a hot press. The test results showed that the specific gravity and density values increased with an increase of the press pressure. The optimal specific gravity
and density were A150B3C10, which numerically were 0.669 and 704 kg.m-3, respectively. In the mechanical properties, the most optimum modulus of rupture was observed for A150B2C10 at about 115.36 MPa. The most optimum modulus of elasticity was found for A100B1C10 at about 11,856 MPa. The highest value of compressive stress parallel to the grain was found at A150B3C10 or about 50.86 MPa. The highest values of compressive stress perpendicular to the grain, shearing stress parallel to the grain, and toughness were determined at A120B2C8 or about 26.78 MPa, 16.08 MPa and 41,365 N.mm, respectively. The comparison between untreated and thermally treated teak indicated that thermally treated teak had relatively better physical and mechanical properties and the cost of teak plantation was less than naturally occuring teak by about 55.27 percent. According to the test results, it can be concluded that teak plantation treated using a hot press have application in the production of various components.