• Pham Trung Kien Faculty of Materials Technology, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, Vietnam
  • Le Ngoc Long
  • Kieu Do Trung Kien
  • Nguyen Dinh Quan
  • Do Quang Minh



rice hush ash, silica, coconut oil, coating, environment materials


The object of this study is to develop an easy and simple technique to fabricate the coating solution of Vietnam rice hush ash-derived water glass (VRHA-WG) and Vietnam coconut oil (VCO). The coating solution with different mixing ratio of VRHA-WG and VCO such as 1: 5 and 1:10 (v/v) can be coated on copper substrate. After coating, the substrate are heated at 500oC for 2 hours to enhance the adherence of silica layer and substrate. The characterization of the coating layer are studied by Xray Diffaraction (XRD) and Xray Fluorescence (XRF) while the surface morphology of the substrate before and after coating is study be scanning electron microscope (SEM). Electricity resistant of the substrate after coating increase up to 33.33% compare without coating.


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Author Biography

Pham Trung Kien, Faculty of Materials Technology, Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, Vietnam

Department of Ceramic Materials, ranking number 1 in Southern Vietnam, in field of Ceramic Materials


H. K. Nguyen, “Food security in Mekong Delta River”. Journal ò science Education University in HCMC, Vol. 32, pp. 3-15, 11/2011.

Pham Trung Kien, Tran Pham Quang Nguyen, Nguyen Hoc Thang. “Effect of hydrothermal treatment temperature on morphology of obtained calcium silicate from rice husk ash”. Journal of Science and Technology Development, vol. 19 (K6) 2016, pp. 69-75.

Rohani AbuBakarabRosiyahYahyaaSeng NeonGan. “Production of High Purity Amorphous Silica from Rice Husk” Procedia Chemistry Vol.19, pp. 189-195 2016.

Dang Thi Thuy Nhung, Tran Hoa, Nguyen Thuy Ai Trinh, Dang Van Phu, Phan Dinh Tuan, Nguyen Quoc Hien. “Synthesis of silica nanoparticles from rice husk ash”. Science & Technology Development Journal, Vol 20, No.K7- 2017

Iara Janaína Fernandes, Daiane Calheiro. “Characterization of Silica Produced from Rice Husk Ash: Comparison of Purification and Processing Methods”. Materials Research Vol.20, pp. 512-518, 2017

I.J. Fernandes, et al., “Characterization of rice husk ash produced using different biomass combustion techniques for energy”, Fuel, vol. 165, pp. 351-359, 2016.

Pham Trung Kien, Huynh Dai Phu, Nguyen Van Tam, Ngo Vo Ke Thanh, Nguyen Hoc Thang, Hirofumi Hinode. “Synthesize Of Calcium Silicate Hydrate (Csh) From Vietnam Rice Hush”. Journal of science, technology and food Vol. 12, pp. 73-80, 2017

Pham Trung Kien, Nguyen Hoc Thang, Do Quang Minh, Do Minh Hien, S. M. Gallardo, F. T. Bacani, Hirofumi Hinode, Michael Angelo B. Promentilla. “Properties and microstructure of geopolymer from red mud, rice husk ash and diatomite”. Journal of Science and Technology 53 (2B), pp. 215-221, 2015.

Pham TK, Kieu DTK, Do QM, Nguyen HT, Ly HA, Pham TTT. “Research on wasted glass as non-firing brick using hydrothermal method”. Journal of Science and Technology; Vol. 52(4A): 198-204, 2014.

Oratai Jongprateep, Nuchsara Wattana, Nicha Sato, Pham Trung Kien, Benjaporn Inseemeesak. “Effects of Solid Loadings and Silica Addition on Microstructure and Compressive Strength of Hydroxyapatite Specimens Fabricated by Freeze Casting Technique”. Ceramics International. Vol (44), pp. S156-S160, 2018.

Hoc Thang Nguyen, Vothi Ha Quyen Pham, Dang Thanh Phong, Nhu Ythi Nguyen, Ngoc Hoang Uyen, Trung Kien Pham. “Utilization of Red Mud and Rice Husk Ash for Synthesizing Lightweight Heat Resistant Geopolymer–Based Materials”. International Journal of Engineering Science Invention (IJESI) Vol. 7, pp.10-15, 2018.

Nguyen Hoc Thang, Pham Trung Kien and Mohd Mustafa Al Bakri Abdullah. “Lightweight Heat Resistant Geopolymer-based Materials Synthesized from Red Mud and Rice Husk Ash Using Sodium Silicate Solution as Alkaline Activator”. MATEC vol. 97, pp. 1-6, 2017.

Pham Trung Kien, Tran Thi Thien Ly, Pham Thi Lan Thanh, Tran Pham Quang Nguyen, Nguyen Hoc Thang and Mohd Mustafa Al Bakri Abdullah. “A Novel Study on Using Vietnam Rice Hush Ash and Cullet as Environmental Materials”. MATEC vol. 97, pp. 11-16, 2017

Michael Angelo B. Promentilla , Nguyen Hoc Thang, Pham Trung Kien, Hirofumi Hinode, Florinda T. Bacani, Susan M. Gallardo. “Optimizing Ternary-blended Geopolymers with Multi-response Surface Analysis”. Waste and Biomass Valorization 7(29), pp. 1-11, 2016.