Manufacturing of bacterial nano-cellulose reinforced fiber-cement composites

作者：Mohammadkazemi Faranak; Doosthoseini Kazem; Ganjian Eshmaiel; Azin Mehrdad

来源：Construction and Building Materials, 2015, 101: 958-964.

DOI：10.1016/j.conbuildmat.2015.10.093

• Bacterial nano-cellulose
• Fiber-cement composites
• Mechanical properties
• Microstructure

In this study, the potential use of bacterial nano-cellulose (BNC) as powder (P), gel (G), and coated onto the fibers (C) on the mechanical and micro-structural properties of bagasse fiber-cement composites (FCCs) was explored. Results indicated that FCCs containing 6 wt.% fiber content manufactured with BNC-coated fibers and BNC gel enhanced mechanical properties and maximum hydration temperature (MHT). However, P FCCs exhibited inferior properties compared to C and G FCCs. According to Scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX) analysis, the surface of BNC-coated fibers was rich in hydration products whilst penetration of alkaline ions into the lumen was reduced. BNC created both a strong interface with cement and prevented fiber mineralization.

• 出版日期2015-12-30