Mechanical properties of coconut filter fiber : Effect of chemical surface treatment :Effect of chemical surface treatment

Suardana Ngakan Putu Gede; Ruihua Hu; Yoon Ho-Chel; Chul-In Kim; Yingjun Piao; Ri Xu; Jae Kyoo Lim

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자료유형: 학술대회자료

저자정보: Suardana Ngakan Putu Gede Ruihua Hu Yoon Ho-Chel Chul-In Kim Yingjun Piao Ri Xu Jae Kyoo Lim

저널정보: 대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2009년도 재료 및 파괴부문 춘계학술대회 논문집

발행연도: 2009.4

수록면: 430 - 435 (6page)

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이 논문의 연구 히스토리 (2)

2009

Mechanical properties due to water absorption and fiber chemical treatment of coir fibers reinforced PLA composites

Sua , dana Ngakan Putu Gede , Yingjun Piao 외 2명 대한기계학회 춘추학술대회 2009.11 학술대회자료

Mechanical properties of coconut filter fiber : Effect of chemical surface treatment

Sua , dana Ngakan Putu Gede , Ruihua Hu 외 5명 대한기계학회 춘추학술대회 2009.04 학술대회자료

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In this study, mechanical properties of single coconut filter (CF) and coconut husk (CH) fiber were compared under the same chemical treatment conditions. The fibers were subjected to various surface treatments as follow: CF and CH fibers were treated using 6%w/v NaOH solution at 95℃ for 3 hours, respectively, and then they were washed with water to remove NaOH solution sticking to the fiber surface and dried in oven for 24 hours at 70℃. After that they were soaked in 0.5%, 1%,3% acrylic acid for 0.5, 1 and 3 hours and then washed with distilled water and dried in oven at 70℃ for 72 hours. The tensile test is conducted according to ASTM standard (C1557-03). Tensile strength, Young's modulus (E) and strain at break (εb) were evaluated.
Mechanical properties of CF fiber are more than twice of those of CH fiber except the strain at break (εb) is lower than that of CH. NaOH treated fibers (CF and CH) have higher tensile strength, E and εb than those of untreated fibers. Based on the immersion time, the maximum tensile strength and E of CF occur at 0.5h immersion for all acrylic acid concentration. They show a decrease tendency when the immersion time increased. While the maximum tensile strength and E of CH occur at 3h immersion for all acrylic acid concentration and the lowest tensile strength and E at 1h acrylic acid immersion but higher than untreated. The maximum tensile strength and E of both CF and CH occur at 0.5% acrylic acid for all immersion time and show a decrease tendency when the acrylic acid concentration increased. Surface morphologies of the fiber were observed using SEM method and FTIR for characterizing chemically modified fiber.

#Coconut filter #Natural fiber #Surface treatment #Mechanical properties

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