Converting dead leaf biomass into activated carbon as a potential replacement for carbon black filler in rubber composites

被引:57
作者
Lay, Makara [1 ,2 ]
Rusli, Arjulizan [1 ]
Abdullah, Muhammad Khalil [1 ]
Hamid, Zuratul Ain Abdul [1 ]
Shuib, Raa Khimi [1 ]
机构
[1] Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, USM Engn Campus, Nibong Tebal 14300, Penang, Malaysia
[2] Linkoping Univ, Dept Sci & Technol, Lab Organ Elect, SE-60174 Norrkoping, Sweden
关键词
Natural rubber; Activated carbon; Carbon black; Crosslink density; NATURAL-RUBBER; MECHANICAL-PROPERTIES; ELECTRODE MATERIALS; REINFORCEMENT; ADSORPTION; BIOCHAR; CAPACITORS; PYROLYSIS; DENSITY; WASTE;
D O I
10.1016/j.compositesb.2020.108366
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, the feasibility of converting dead leaf biomass into green activated carbon for use as a reinforcement filler in natural rubber composites was assessed. The dead leaf activated carbon (DLAC) was prepared by pyrolysis at 550, 700, 900, and 1000 degrees C at a heating rate of 10 degrees C min(-1) under nitrogen gas flow of 100 cm(3) min(-1) and was activated by CO2 gas at the same flow rate when the pyrolysis temperature was reached. The properties of DLACs were characterized by particle size analysis, density, scanning electron microscopy, elemental energydispersive X-ray spectroscopy and Raman spectroscopy. The results revealed that the DLAC obtained by pyrolysis at 1000 degrees C had a small particle size of 28.86 tint; a highly porous structure; high carbon purity, at 82.58%; and a low density, at 1.588 g cm(-3). The effect of different DLAC contents (5, 10, and 15 phr) on the curing properties and the physical and mechanical performance of the rubber composites was investigated and compared with rubber composites containing carbon black (CB). The results showed that the addition of DLAC increased the maximum torque and reduced the scorch and cure times. The tensile strength for rubber composites containing 15 phr of DLAC increased by 8%, the M100 and M300 improved 40%, and the elongation at break and crosslink density decreased by approximately 5% and 24%, respectively. The studied DLAC is a promising, cost-effective alternative to commercial carbon black for improving the performance of rubber composites.
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页数:10
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