High Antioxidative Performance of Layered Double Hydroxides/Polypropylene Composite with Intercalation of Low-Molecular-Weight Phenolic Antioxidant

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• 作者：Yongjun Feng ; Yu Jiang ; Qiang Huang ; Shangtao Chen ; Fengbo Zhang ; Pinggui Tang ; Dianqing Li
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：February 12, 2014
• 年：2014
• 卷：53
• 期：6
• 页码：2287-2292
• 全文大小：369K
• ISSN：1520-5045

文摘

It is of increasing interest to develop high-performance antioxidants for polypropylene (PP). Here, we have developed an organic鈥搃norganic hybrid antioxidant by direct intercalation of low-molecular-weight hindered phenolic antioxidant (AO) into the interlayer region of layered double hydroxides (LDH), prepared the AO-LDH/PP composites following a simple solvent washing method, and investigated the thermal stability of the AO-LDH/PP composites by an accelerated aging method at 150 掳C under air atmosphere. The results show that the one-step synthesis method is available to produce the AO-LDH with a basal spacing of 2.8 nm and that the addition of AO-LDH does not influence the crystallization behavior of PP. Furthermore, the radical-scavenging ability of AO-LDH is similar to that of the AO species. The AO-LDH significantly improves the long-term thermal stability of PP related to the CO₃-LDH. The AO-LDH exhibits excellent antioxidative performance with promising applications in the field of polymers.