Characterization of Phosphorus Flame Retardant Pre-treatment on Cellulose-Based Hollow Fiber Carbon Membranes
Vol. 56, No. 5, pp. 293-299,
Oct. 2019
10.12772/TSE.2019.56.293
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Abstract
This study investigated the effect of phosphorus flame retardant treatment on cellulose-based hollow fiber carbon membranes (HFCMs). The HFCMs were prepared by the pyrolysis of cellulose hollow fiber treated with an (NH4)2HPO4 and polysiloxane emulsion mixture. TGA showed that the HFCMs started to decompose at 150oC and that the carbon yield increased by 9.2% at 850 oC. The HFCMs did not show typical cellulose crystalline peaks at 350oC in XRD analysis. The flexibility of the HFCMs decreased as the final pyrolysis temperature increased. (NH4)2HPO4 treatment lowered the degree of flexibility of the HFCMs. The tensile strength and tensile modulus increased with the
pyrolysis temperature.
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