Faculty of Engineering, China University of Geosciences (Wuhan), 388 Lumo Road, Wuhan, Hubei 430074, PR China.
Faculty of Engineering, China University of Geosciences (Wuhan), 388 Lumo Road, Wuhan, Hubei 430074, PR China.
J Hazard Mater. 2017 Sep 15;338:343-355. doi: 10.1016/j.jhazmat.2017.05.046. Epub 2017 May 27.
In present study, LDH/MoS hybrids were facilely prepared by self-assembly of exfoliated MoS nanosheets and LDH via electrostatic force. The structure and morphology of the LDH/MoS hybrids were characterized and then introduced into epoxy for reducing its fire hazards. Compared with single MoS, LDH/MoS hybrids showed a more homogeneous dispersion in the epoxy matrix and no obvious agglomerates were observed. Compared with MoS, the addition of LDH/MoS hybrids endowed more excellent fire resistance to epoxy matrix, which was reflected by the significantly reduced peak heat release rate, total heat release and total smoke production. A rational flame retardant mode of action for LDH/MoS hybrids was proposed based on the analysis of pyrolysis fragments and char residues.
在本研究中，通过剥离的 MoS 纳米片和 LDH 之间的静电力自组装，制备了 LDH/MoS 杂化物。对 LDH/MoS 杂化物的结构和形貌进行了表征，并将其引入到环氧树脂中以降低其火灾危险性。与单 MoS 相比，LDH/MoS 杂化物在环氧树脂基体中具有更均匀的分散性，没有观察到明显的团聚体。与 MoS 相比，LDH/MoS 杂化物赋予环氧树脂基体更优异的阻燃性能，这体现在明显降低的峰值放热率、总放热量和总烟释放量上。通过对热解碎片和残炭的分析，提出了 LDH/MoS 杂化物的合理阻燃作用模式。
