| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1520684 | Materials Chemistry and Physics | 2016 | 8 Pages |
Abstract
In this study, a novel microencapsulated flame retardant containing ammonium polyphosphate (APP) and an 4,4â²-oxydianiline-formaldehyde (OF) resin as the core and shell material was synthesized using in situ polymerization technology. The structure and performance of OF microencapsulated APP (OFAPP) were characterized using Fourier transform infrared spectroscopy and scanning electron microscopy. The thermal properties of OFAPP were systematically analyzed through thermogravimetric analysis. Flame retardancy tests, such as limiting oxygen index (LOI) and UL-94, were conducted to evaluate the effect of varying the composition of APP and OFAPP in silanol-terminated polyurethane (Si-PU) composites. The results indicated that the microencapsulation of APP with the OF resin resulted in improved hydrophobicity. The results also revealed that the flame retardancy of the Si-PU/OFAPP composite (LOIÂ =Â 37%) was higher than that of the Si-PU/APP composite (LOIÂ =Â 23%) at the same additive loading.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ming-Yuan Shen, Wei-Jen Chen, Chen-Feng Kuan, Hsu-Chiang Kuan, Jia-Ming Yang, Chin-Lung Chiang,