Answers are grounded in this paper and cite their sources.
Starch, being one of the most abundant polysaccharides in nature, has been modified as starch-based thermoplastic materials for decades. In this work, we have demonstrated a green and facile method for choline phytate (CPA), which is not only a fire retardant but also a plasticizer for starch. Thermoplastic starch (TPS) plasticized with glycerol, CPA, and water was prepared by melt blending. The plasticizing effect was investigated by crystallinity calculation and a tensile test. Also, the flame retardancy of CPA for TPS films was evaluated by combustion tests. As the CPA loading increased, the crystallinity of TPS films decreased from 11.7% to 7.6%. With the addition of 30 phr CPA, the TPS film could pass a UL-94 V-0 rating (1 mm) and the limiting oxygen index was increased to 43.7%. Cone calorimeter characterization revealed that the heat release of SGCPAX composites was efficiently restrained by CPA. The peak of heat release rate was decreased by 68.7% and total heat release was decreased by 33.8% for the TPS films containing 20 phr CPA. The flame-retardant mechanism of CPA in TPS played the key role by the analysis of the char residues.
No takes yet. Share an insight, caveat, or question.
Wang et al. (2020) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: