In the work, hybrid nanocomposite of Ni–Al layered double hydroxide (LDH) and carbon nanotubes (LDH/CNTs) was assembled via one-pot hydrothermally assisted coprecipitation approach and applied as the thermal stabilizer in polyvinyl chloride (PVC) resin. Various structural characterizations revealed that smaller LDH nanoplatelets could be uniformly dispersed on the surface of CNTs or closely combined with the CNTs matrix, thus forming unique hybrid nanostructure and strong LDH-CNTs interactions. The thermogravimetry (TGA), Congo red tests, and TG-fourier transform infrared (TG-FTIR) experiments for the PVC-based composites demonstrated that compared with pristine NiAl-LDH and CNTs, as-assembled LDH/CNTs nanocomposite exhibited greatly enhanced thermal stabilization effect on PVC resin. Especially, PVC/LDH/CNTs composite with 5.0 phr of LDH/CNTs additive delivered a superior thermal stabilization effect on PVC to other PVC-based composites, along with the greatly increased maximum degradation temperature and the improved removal efficiency of hydrogen chloride by about 40 °C and 64.8%, respectively. It was concluded that through the assembly of NiAl-LDH with CNTs, the enlarged LDH interlayer spacing, enhanced dispersion of NiAl-LDH component in PVC resin, and strengthened interfacial interaction between NiAl-LDH and PVC could account for the improved thermal stabilization effect of LDH/CNTs additive on PVC during the pyrolysis of PVC.

在工作中，通过一锅水热辅助共沉淀法组装了Ni-Al层状双氢氧化物（LDH）和碳纳米管（LDH / CNTs）的杂化纳米复合材料，并用作聚氯乙烯（PVC）树脂中的热稳定剂。各种结构特征表明，较小的LDH纳米片可以均匀地分散在CNT的表面上或与CNTs基质紧密结合，从而形成独特的杂化纳米结构和强的LDH-CNTs相互作用。PVC基复合材料的热重分析（TGA），刚果红测试和TG-傅立叶变换红外（TG-FTIR）实验表明，与原始NiAl-LDH和CNT相比，组装后的LDH / CNTs纳米复合材料的热性能大大提高。对PVC树脂有稳定作用。特别是PVC / LDH / CNTs与5。0 phr的LDH / CNTs添加剂对PVC的热稳定性优于其他PVC基复合材料，最大降解温度大大提高，氯化氢的去除效率分别提高了约40°C和64.8％。结论是，通过将NiAl-LDH与CNT组装，扩大了LDH的层间间距，增强了NiAl-LDH组分在PVC树脂中的分散性，并增强了NiAl-LDH与PVC之间的界面相互作用，可以解释提高NiAl-LDH与PVC之间的热稳定性的原因。 LDH / CNTs在PVC热解过程中在PVC上的添加剂。分别。结论是，通过将NiAl-LDH与CNT组装，扩大了LDH的层间间距，增强了NiAl-LDH组分在PVC树脂中的分散性，并增强了NiAl-LDH与PVC之间的界面相互作用，可以解释提高NiAl-LDH与PVC之间的热稳定性的原因。 LDH / CNTs在PVC热解过程中的添加剂。分别。结论是，通过将NiAl-LDH与CNT组装，扩大了LDH的层间间距，增强了NiAl-LDH组分在PVC树脂中的分散性，并增强了NiAl-LDH与PVC之间的界面相互作用，可以解释提高NiAl-LDH与PVC之间的热稳定性的原因。 LDH / CNTs在PVC热解过程中的添加剂。