期刊
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
卷 34, 期 10, 页码 1315-1333出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0892705719868278
关键词
Microwave; compression molding; polymer composite; multistep stress relaxation test; kenaf; MWCNT
资金
- Ministry of Human Resource and Development (MHRD), Government of India
This study focused on the microwave-assisted compression moulding of HDPE-based composites with kenaf and MWCNT reinforcement. The mechanical characterizations of the composites showed that the HDPE/kenaf composite had higher tensile modulus and impact energy absorption compared to the HDPE/MWCNT composite.
The present work deals with the microwave-assisted compression moulding of high-density polyethylene (HDPE)-based composites. In the present work, 20 wt% of reinforcement in the form of kenaf and multi-walled carbon nanotube (MWCNT) was used to fabricate HDPE/kenaf and HDPE/MWCNT polymer composites. The mechanical characterizations of the microwave-processed composites were carried out in terms of uniaxial tensile test with different strain rate, multistep stress relaxation, flexural and impact test. The uniaxial tensile test revealed that the tensile modulus of microwave-processed four-layered HDPE/kenaf polymer composite was 35.2% higher than that of HDPE/MWCNT polymer composite. The HDPE/MWCNT polymer composite showed a minimum of 1.25 GPa and a maximum of 4.7 GPa of elastic modulus when tested at different strain rate. The impact energy absorbed by the HDPE/kenaf polymer composite (1.055 J) was 81.12% higher than the HDPE/MWCNT polymer composite (0.582 J).
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