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Dynamic Mechanical Analysis of Randomly Oriented Short Bagasse/Coir Hybrid Fibre-Reinforced Epoxy Novolac Composites
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  • Dynamic Mechanical Analysis of Randomly Oriented Short Bagasse/Coir Hybrid Fibre-Reinforced Epoxy Novolac Composites
  • Dynamic Mechanical Analysis of Randomly Oriented Short Bagasse/Coir Hybrid Fibre-Reinforced Epoxy Novolac Composites
저자명
Saw. Sudhir Kumar,Sarkhe. Gautam,Choudhury. Arup
간행물명
Fibers and polymers
권/호정보
2011년|12권 4호|pp.506-513 (8 pages)
발행정보
한국섬유공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Hybrid composites of epoxy novolac reinforced with short bagasse fibres and short coir fibres were prepared. The mechanical and dynamic mechanical properties of these bagasse-coir hybrid fibres reinforced epoxy novolac composites were investigated with reference to different layering patterns of the composites. The tensile properties of the tri-layer composites are recorded higher than those of the bi-layer composites, whereas the flexural properties of the tri-layer composites are lower than bi-layer composites. The tensile strength of the intimate mix composite is comparable with trilayer composite having bagasse as skin material. The effect of layering pattern on storage modulus ($E^{prime}$), damping behavior (tan ${delta}$), and loss modulus ($E^{primeprime}$) was studied as a function of temperature and frequency. The $E^{prime}$ values of the bi-layer composites are recorded lower than those of tri-layer (bagasse/coir/bagasse) and intimately mixed hybrid composites. The minimum $E^{prime}$ value is obtained for the composites made with coir as skin layer. Bi-layer composite shows maximum damping property. The theoretical modeling showed good correlation with experimental results at above glass transition temperature ($T_g$), while theoretical model deviates experimental data at lower $T_g$. The Arrhenius relationship has been used to calculate the activation energy of the glass transition of the composites.