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Influence of layered zinc hydroxide nitrate on thermal properties of paraffin/intumescent flame retardant as a phase change material |
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| Authors: | Ping Zhang Ming Kang Yuan Hu |
| Affiliation: | 1. School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People’s Republic of China 2. State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, 621010, People’s Republic of China 3. State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzai Road, Hefei, 230026, Anhui, People’s Republic of China |
| Abstract: | The thermal properties of paraffin as phase change material (PCM), combined with layered zinc hydroxide nitrate (LZHN) and intumescent flame retardant (IFR), have been studied by thermogravimetric analysis (TG), TG-Fourier transform infrared spectrometry (TG-FTIR), cone calorimeter (CONE),and differential scanning calorimetry (DSC). The TG results indicated that the thermal stabilities of the paraffin and paraffin/IFR composites could be improved when dodecyl sodium sulfate-modified LZHN (ds-LZHN) was incorporated. The TG-FTIR results indicated that ds-LZHN could reduce the release of combustible gases for paraffin and paraffin/IFR. The CONE results showed that the flame-retardant efficiency of IFR could be improved in the paraffin/IFR system owing to ds-LZHN. DSC results presented that the phase change temperatures and latent heats of the composites were determined by the dispersed paraffin with their mass percentage. |
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