Properties of carbon composite paper derived from coconut coir as a function of polytetrafluoroethylene content

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Destyorini, Fredina^1 ; Indriyati^2 ; Indayaningsih, Nanik^1 ; Prihandoko, Bambang^1 ; Syahrial, Anne Zulfia^3

Research Center for Physics, Indonesian Institute of Sciences (LIPI), South Tangerang, Indonesia^1

Research Unit for Clean Technology, Indonesian Institute of Sciences (LIPI), Bandung, Indonesia^2

Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok, Indonesia^3

关键词: Carbon composites;    Carbon material;    Coconut coirs;    Electrical conductivity;    Electrical conductivity measurements;    Ethylene vinyl acetates;    Polytetrafluoroethylene (PTFE);    Water contact angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012054/pdf
DOI  :  10.1088/1757-899X/316/1/012054

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The carbon composite papers were produced by utilizing carbon materials from coconut coir. In the present work, carbon composite papers (CCP) were prepared by mixing carbon materials in the form of powder and fibre with polymer (ethylene vinyl acetate and polyethylene glycol) in xylene at 100°C. Then, polytetrafluoroethylene (PTFE) with different content was used to treat the surface of CCP. The properties of PTFE-coated CCP were analysed by means of contact angle measurement, tensile testing, porosity, density, and electrical conductivity measurements. As expected, all CCP's surfaces treated with PTFE were found to be hydrophobic with contact angle >120° and relatively constant during 60 minutes measurement. Furthermore, water contact angle, density, and mechanical properties of CCP generally increase with increasing PTFE content. However, the porosity and electrical conductivity of CCP decrease slightly as the PTFE content increased from 0 wt% to 30 wt%. Based on the observation and analysis, the optimum PTFE content on CCP was 20 %, in which the mechanical properties and hydrophobicity behaviour were improved significantly, but it was only caused a very small drop in porosity and electrical conductivity.