期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 119, 期 1, 页码 619-624出版社
SPRINGER
DOI: 10.1007/s10973-014-4175-7
关键词
alpha-Zirconium phosphate; Aluminum hydroxide; Synergistic; Flame retardant; Heat release rate
资金
- Innovation Program of Shanghai Municipal Education Commission [14YZ154]
- Open Project Program of State Key Laboratory of Fire Science, University of Science and Technology of China [HZ2013-KF02]
- Scientific and Technological Project of Shanghai Entry-Exit Inspection and Quarantine Bureau [HK021-2014]
- National student innovative experiment plan [2013-sj-cxjh-010, 20132044005]
Organophilic alpha-zirconium phosphate (alpha-ZrP, OZrP) with a lamellar structure is used as a synergistic agent with aluminum hydroxide (ATH) to improve the flame retardancy of low-density polyethylene and ethylene-vinyl acetate (LDPE/EVA) hybrid. The structures of LDPE/EVA/(ATH, OZrP) hybrids are characterized by X-ray diffraction, transmission electron microscopy, and high resolution transmission electronic microscopy. The results indicate that the intercalated and exfoliated nanocomposites are formed. The flammability characterization and synergistic effects of LDPE/EVA/(ATH, OZrP) hybrids have been investigated by cone calorimeter test, limiting oxygen index, and UL-94 tests. The analyses show that hybrids with a given amount of OZrP have apparently reduced the heat release rates and can pass the V-0 rating in the UL-94 test. Based on these findings, a possible and reasonable synergistic flame retardant mechanism of OZrP and ATH is given in the discussion.
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