Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 132, Issue 28, Pages -Publisher
WILEY
DOI: 10.1002/app.42237
Keywords
composites; mechanical properties; recycling; thermal properties
Categories
Funding
- Department of Science and Technology (DST) [SR/WOS-A/CS-91/2012 (G)]
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Recycled high-density polyethylene (RHDPE)/coir fiber (CF)-reinforced biocomposites were fabricated using melt blending technique in a twin-screw extruder and the test specimens were prepared in an automatic injection molding machine. Variation in mechanical properties, crystallization behavior, water absorption, and thermal stability with the addition of fly ash cenospheres (FACS) in RHDPE/CF composites were investigated. It was observed that the tensile modulus, flexural strength, flexural modulus, and hardness properties of RHDPE increase with an increase in fiber loading from 10 to 30 wt %. Composites prepared using 30 wt % CF and 1 wt % MA-g-HDPE exhibited optimum mechanical performance with an increase in tensile modulus to 217%, flexural strength to 30%, flexural modulus to 97%, and hardness to 27% when compared with the RHDPE matrix. Addition of FACS results in a significant increase in the flexural modulus and hardness of the RHDPE/CF composites. Dynamic mechanical analysis tests of the RHDPE/CF/FACS biocomposites in presence of MA-g-HDPE revealed an increase in storage (E) and loss (E) modulus with reduction in damping factor (tan ), confirming a strong influence between the fiber/FACS and MA-g-HDPE in the RHDPE matrix. Differential scanning calorimetry, thermogravimetric analysis thermograms also showed improved thermal properties in the composites when compared with RHDPE matrix. The main motivation of this study was to prepare a value added and low-cost composite material with optimum properties from consumer and industrial wastes as matrix and filler. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42237.
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