Enhancement of Recycled WPC with Epoxy Nanocomposite Coats | ||
| Egyptian Journal of Chemistry | ||
| Article 15, Volume 62, Issue 3, March 2019, Pages 555-563 PDF (741.17 K) | ||
| Document Type: Review Articles | ||
| DOI: 10.21608/ejchem.2018.4684.1415 | ||
| Authors | ||
| Huda Alnajjar* 1; N. Shaker1; Hamdy Naguib2, 3, 4; Usama F. Kandil5; H. Ahmed1; Awatef A. Farag1 | ||
| 1Department of Chemistry-Faculty of Science, Al-Azhar University (Girls Branch), Nasr City, Cairo, Egypt. | ||
| 2Polymer Nanocomposite Center (PNC), Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, Egypt | ||
| 3Department of Petroleum Applications, Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, Egypt. | ||
| 4Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, China. | ||
| 5Polymer Nanocomposite Center (PNC), Egyptian Petroleum Research Institute (EPRI), Nasr City 11727, Cairo, Egypt. | ||
| Abstract | ||
| THE RECYCLED plastic and wood waste were recycled to produce new useful product, wood plastic composite (WPC), that having characteristics close to commercial wood. WPC was performed by compounding and forming different recycled polyethylene/wood flour (PE/WF) weight ratios as 70/30, 60/40, 50/50 and 40/60 using twin screw extruder. Based on the mechanical properties measured via dynamic mechanical analysis (DMA), an optimized ratio was found to be (50/50)and was chemically treated with chromic acid solution and investigated by FTIR that approved successful functionalization after treatment. The treated WPC was then coated with different epoxy nanocomposites including reactive rubber nanoparticles (RRNP), montmorillonite nanoclay (MMT) and carbon nanotubes (CNTs). The coated WPC was fully tested using mechanical characterizations (modulus and scratch), water absorption (dist. and sea water), and thermal gravimetric analysis (TGA). The results showed that WPC coated with epoxy/CNT, epoxy/MMT and epoxy/RRNP has an enhanced final product with promising mechanical and physical properties compared to blank or uncoated WPC specimens. Also WPC coated with all epoxy nanocomposites has got enhanced modulus, more scratch resistance, lower water absorption and developed thermal stability, compared to the un-filled epoxy coat. Of those, the epoxy-CNT nanocomposite is an optimized protective coat for WPC even after immersion in water with different conditions. | ||
| Keywords | ||
| coating; Nanocomposites; WPC; Modulus | ||
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