| Influences of 4ZnO center dot B2O3 center dot H2O whisker based intumescent flame retardant on the mechanical, flame retardant and smoke suppression properties of polypropylene composites | |
Dang, Li; Lv, Zhihui; Liu, Xin
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| 第一作者 | Dang, Li |
| 2021-10-15 | |
| 发表期刊 | JOURNAL OF APPLIED POLYMER SCIENCE
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| ISSN | 0021-8995 |
| 卷号 | 138期号:39 |
| 摘要 | In this work, the influences of 4ZnO center dot B2O3 center dot H2O zinc borate (ZB) whisker based intumescent flame retardant (IFR) containing ammonium polyphosphate and dipentaerythritol on the mechanical, flame retardant and smoke suppression properties of polypropylene (PP) composites were characterized by the universal testing machine, UL-94, limiting oxygen index (LOI), and cone calorimeter tests, respectively. The results indicate that only 1 phr of ZB could effectively improve the LOI value and slow down the burning rate of PP composite. The peak heat release rate, average of HRR, total heat release, peak smoke production rate, and total smoke production values are all decreased from 413.8 kW/m(2), 166.3 kW/m(2), 82.3 MJ/m(2), 0.0995 m(2)/s, and 17.9 m(2) for PPc/20IFR composite to 267.8 kW/m(2), 128.3 kW/m(2), 66.8 MJ/m(2), 0.0478 m(2)/s, and 12.6 m(2) for PPc/20IFR/1ZB composite, respectively. The scanning electron microscopy images, energy dispersive spectrometry, and Raman spectra of char residue reveal that ZB is helpful to form a compact and graphitized intumescent char residue so that the heat diffusion and oxygen transmission are greatly hindered. The thermogravimetry analysis-fourier transform infrared spectroscopy (TGA-FTIR) results show that less combustible volatiles and more H2O vapor are generated with the appearance of ZB. Hence, the combustion mechanism in gas phase is suppressed. |
| DOI | 10.1002/app.51016 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34179 |
| 专题 | 盐湖资源综合利用工程技术中心 |
| 推荐引用方式 GB/T 7714 | Dang, Li,Lv, Zhihui,Liu, Xin. Influences of 4ZnO center dot B2O3 center dot H2O whisker based intumescent flame retardant on the mechanical, flame retardant and smoke suppression properties of polypropylene composites[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2021,138(39). |
| APA | Dang, Li,Lv, Zhihui,&Liu, Xin.(2021).Influences of 4ZnO center dot B2O3 center dot H2O whisker based intumescent flame retardant on the mechanical, flame retardant and smoke suppression properties of polypropylene composites.JOURNAL OF APPLIED POLYMER SCIENCE,138(39). |
| MLA | Dang, Li,et al."Influences of 4ZnO center dot B2O3 center dot H2O whisker based intumescent flame retardant on the mechanical, flame retardant and smoke suppression properties of polypropylene composites".JOURNAL OF APPLIED POLYMER SCIENCE 138.39(2021). |
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