A Different Type Of Japanese Bamboo Had Been Studied By Phong Et Al

818 Words Sep 1st, 2015 4 Pages
A different type of Japanese bamboo had been studied by Phong et al. (2012). Moso bamboo was harvested and processed using several methods to obtain the fiber. In alkali extraction method, the bamboo was cut into thin slabs with length and thickness of 25 cm and 3 mm, respectively. The slabs were immersed in different concentration NaOH solution (1%, 2%, 3%) at 70 ⁰C for 10 h. This study showed that only 1% NaOH resulted in higher mechanical properties. The roller looser was then used to produce small fibers. Then, they were washed and dried in an oven for 24 h at 105 ⁰C. For steam-explosion method, the bamboo was cut into 70-80 cm in length and placed in an autoclave with over-heated steam at 175 ⁰C and 0.7-0.8 MPa for an hour. The steam was suddenly released for 5 min and the cycle was repeated for 9 times. Then, they were washed in hot water with addition of soap at 90-95 ⁰C for 15 minute and dried in the oven for 24 h at 105 ⁰C. As a result, they concluded that alkali extraction method produced smooth and clear fibers compared untreated and steam explosion methods. For untreated fibers, the surface was surrounded by hemicellulose, lignin, soft cell and some impurities that lead to weak interfacial bonding. Interfacial shear strength (IFSS) was obtained by using two different polymers namely polypropylene and unsaturated polyester resin. Alkali treated resulted in highest IFSS with 4.3 MPa and 18.7 MPa, respectively. These values were almost double value for untreated…

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