An Advanced Study on Optimization and Characterization of Nano Aluminum Trihydrate-Based Flame-Retardant Materials in the Rotating Packed Bed Reactor

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An Advanced Study on Optimization and Characterization of Nano Aluminum Trihydrate-Based Flame-Retardant Materials in the Rotating Packed Bed Reactor

March 8, 2021 Science and Technology 0

In a rotating packed-bed (RPB) reactor, nano aluminium trihydate (ATH) particles were prepared using a CO2/NaAlO2/H2O absorption-reaction system (Phase I). An orthogonal array, L9, was created using the Taguchi experimental design (34). The rotational speed (A), gas-liquid flow rate ratio (B), ageing temperature (C), and ageing time (D) were all three-level parameters. The larger-the-better for the BET region (Sw) was found to be A3B3C1D1, while the parameter significance was DABC, according to the signal/noise (S/N) ratio analysis. Sw‘s empirical formula was also discovered and debated. Following that, the optimum size (10.7 nm) of ATH powders is used to blend with the matrix (Phase II), which included plastics and additives, for more characterization. The limiting oxygen index (LOI) of composite materials was found to be greater than 28, suggesting that they have excellent fire-retarding properties. To find the best conditions for making nano-ATH, researchers used the Taguchi process. The thermal analysis, particle size, grain size, powder morphology, and particle size were all examined. The results also revealed that the LOI for nano ATH is higher than that purchased on the market, and that both ATHs passed the fire-retarding grade review (UL-94 test) with a V-0 grade. In addition, before using ATH from the market, the mechanical properties of nano ATH were calculated. Finally, the mechanism provides an incentive for certain industries to catch CO2.

Author (s) Details

Pao Chi Chen
Department of Chemical and Materials Engineering, Lunghwa University of Science and Technology, Taiwan.

L. C. Yang
Department of Chemical and Materials Engineering, Lunghwa University of Science and Technology, Taiwan.

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