A phosphorus- and nitrogen-containing DOPO derivative as flame retardant for polylactic acid (PLA)

Wang Xinxin; He Wentao; Long LijuanHuang ShaowenQin ShuhaoXu Guomin

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A phosphorus- and nitrogen-containing DOPO derivative as flame retardant for polylactic acid (PLA)

机译：A phosphorus- and nitrogen-containing DOPO derivative as flame retardant for polylactic acid (PLA)

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The preparation of high-efficient flame-retardant PLA remains a major challenge due to the unavoidable loss in mechanical properties. In this study, a DOPO derivative containing phosphorus and nitrogen in the molecular structure with amino as terminal group (DOPO-NH2) was incorporated into PLA to improve the flame resistance. The addition of this DOPO derivative on the thermal stability, flame retardancy and mechanical properties of PLA was investigated. With loading of only 5 mass DOPO-NH2, the LOI value increased to 26 and UL-94 V-0 was attained. The heat release rate showed obvious decrease by microscale combustion calorimetry. Moreover, the mechanical properties of PLA/5DOPONH(2) composite have not deteriorated significantly due to the low loading and the existence of hydrogen bond between DOPO-NH2 and PLA matrix.

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来源
《Journal of thermal analysis and calorimetry》 |2021年第2期|331-343|共13页
作者
Wang Xinxin; He Wentao; Long LijuanHuang ShaowenQin ShuhaoXu Guomin;
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作者单位

Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China;

Huanggang Normal Univ, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China;

Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Peoples R China;

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正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Polylactic acid; Flame retardancy; Rheological properties; Mechanical properties;

A phosphorus- and nitrogen-containing DOPO derivative as flame retardant for polylactic acid (PLA)

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