Synthesis of silica aerogel particles and its application to thermal insulation paint

Thi Hai Nguyen; Ngoc Tam Mai; Vasudeva Reddy Minnam Reddy; Jae Hak Jung; Nguyen Tam Nguyen Truong

Korean Journal of Chemical Engineering, Vol.37, No.10, 1803-1809, October, 2020

DOI10.1007/s11814-020-0574-6 Export Citation

Synthesis of silica aerogel particles and its application to thermal insulation paint

Thi Hai Nguyen, Ngoc Tam Mai, Vasudeva Reddy Minnam Reddy¹, Jae Hak Jung^{1, †}, and Nguyen Tam Nguyen Truong^{1, †}

South Vietnam Institute for Building Materials, lot I-3b-5, N6 Street, Tan Phu Ward, District 9, Ho Chi Minh City, Vietnam
¹School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Korea

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Silica aerogel (SA) particle was synthesized and characterized. The effects of silica content in silicic acid solution and molar ratio of trimethyl chlorosilane (TMCS)/pore water on silica aerogel physical characteristics such as surface area, pore volume, apparent density, and porosity were investigated. We observed that when the silica content increased from 4 to 7% of weight (wt%), the silica aerogel surface area increased from 628.5m2/g to 914.4m2/g and thereafter (>9%). When the molar ratio of TMCS/pore water increased from 0.1-0.4, the silica aerogel’s surface area increased from 816.8m2/g to 924.1m2/g. The highest silica aerogel surface area of 924.1m2/g and porosity of 96.4% were achieved with a silica content in silicic acid of 7.011wt% and TMCS/pore water of 0.4. Finally, silicon aerogel particles applied to water-based paint to improve the thermal insulation was about 1.2 °C with surrounding ambient temperature of 45 °C.

Keywords:Aerogel;Silicic Acid;Sodium Silicate;Trimethyl Chlorosilane (TMCS);Surface Area

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[Referenced By]

[1] Clark S, Global Opportunity Analysis and Industry Forecast. Allied Market Research, United States (2014).

[2] Pierre AC, Pajonk GM, Chem. Rev., 102(11), 4243 (2002)

[3] Aegerter MA, Advances in sol-gel derived materials and technologies: Aerogels handbook, Springer, New York (2011).

[4] Sarawade PB, Kim JK, Hilonga A, Quang DV, Jeon SJ, Kim HT, J. Non-Cryst. Solids, 357, 2156 (2011)

[5] Akimov YK, Instrum. Exp. Tech, 46, 287 (2003)

[6] Pan Y, Mater. Lett., 229, 265 (2018)

[7] Pan Y, J. Sol-Gel Sci. Technol., 82, 594 (2017)

[8] Feng Q, Chen K, Ma D, Lin H, Liu Z, Qin S, Luo Y, Colloids Surf. A: Physicochem. Eng. Asp., 539, 399 (2018)

[9] Nah HY, J. Sol-Gel Sci. Technol., 87, 319 (2018)

[10] Khedkar MV, J. Non-Cryst. Solids, 511, 140 (2019)

[11] ASTM D501 - 03: Standard Test Methods of Sampling and Chemical Analysis of Alkaline Detergents (2016)

[12] Maleki H, Duraes L, Portugal A, J. Non-Cryst. Solids, 385, 55 (2014)

[13] Hwang SW, Jung HH, Hyun SH, Ahn YS, J. Sol-Gel Sci. Technol., 41, 139 (2007)

[14] Jung IK, Gurav JL, Ha TJ, Choi SG, Baek S, Park HH, Ceram. Int., 38S, S105 (2012)

[15] Hwang SW, Kim TY, Hyun SH, J. Colloid Interface Sci., 322(1), 224 (2008)

[16] Hwang SW, Kim TY, Hyun SH, Microporous Mesoporous Mater., 130, 295 (2010)

[17] Mandal C, Donthula S, Soni R, Bertino M, Leventis CS, Levents N, J. Sol-Gel Sci. Technol., 127, 127 (2018)