The mechanical properties of vinylester resin matrix composites reinforced with alkali-treated jute fibres
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
The mechanical properties of vinylester resin matrix composites reinforced with alkali-treated jute fibres
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| Creator |
Ray, D
Sarkar, Bijit Kumar Rana, A K Bose, Nripati Ranjan |
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| Subject |
Ceramic-Metal Systems
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| Description |
Jute fibres were subjected to alkali treatment with 5% NaOH solution for 0, 2, 4, 6 and 8 h at 30 degreesC. The modulus of the jute fibres improved by 12, 68 and 79% after 4, 6 and 8 h of treatment, respectively. The tenacity of the fibres improved by 46% after 6 and 8 h treatment and the % breaking strain was reduced by 23% after 8 h treatment. For 35% composites with 4 h-treated fibres, the flexural strength improved from 199.1 to 238.9 MPa by 20%, modulus improved from 11.89 to 14.69 GPa by 23% and laminar shear strength increased from 0.238 to 0.283 MPa by 19%. On plotting different values of slopes obtained from the rates of improvement of flexural strength and modulus, against NaOH treatment time, two different failure modes were apparent before and after 4 h of NaOH treatment. In the first region between 0 and 4 h, fibre pull out was predominant whereas in the second region between 6 and 8 h, transverse fracture occurred with minimum fibre pull out. This observation was well supported by the SEM investigations of the fracture surfaces.
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| Publisher |
Elsevier
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| Date |
2001
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/1343/1/1350.pdf
Ray, D and Sarkar, Bijit Kumar and Rana, A K and Bose, Nripati Ranjan (2001) The mechanical properties of vinylester resin matrix composites reinforced with alkali-treated jute fibres. Composites Part A-Applied Science and Manufacturing , 32 (1). 119 -127 . ISSN 1359-835X |
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| Relation |
http://cgcri.csircentral.net/1343/
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