| 초록 |
Changes occurring on surface structure in Jute and Coir fibers composites with 2 ~ 8% concentration of a NaOH treatment for 24h were characterized for void contents, SEM, mechanical properties and water absorption. Mechanical properties of Coir and Jute Fibers compounded with Polypropylene(PP) fibers were investigated. Mechanical properties indicated good adhesion between natural fibers and PP fibers. Jute fibers alkali-treated with 2% conc. showed improvement in tensile strength by 40% and modulus by 9%, while Coir fibers alkali-treated with 6% conc. showed improvement in tensile strengths by 62% and modulus by 17%, respectively. With 2% conc. of alkali-treatment, the elongation of Jute and Coir composites reached to 8 and 13.5%, respectively. |
