稀土 LDHs 稳定剂的制备及其对聚氯乙烯热稳定性的影响

IF 2.4 3区 化学 Q3 POLYMER SCIENCE
Peijie Jia, Jinsheng Duan, Zhaogang Liu, Yilin Li, Guifang Du, Yanhong Hu, Jinxiu Wu
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引用次数: 0

摘要

本研究探讨了锌镧系层状双氢氧化物(Zn-La-LDHs)和锌铝镧系层状双氢氧化物(Zn-Al-La-LDHs)作为聚氯乙烯(PVC)潜在热稳定剂的可能性。这项研究旨在阐明上述稀土(RE)层状双氢氧化物与二苯甲酰基甲烷(β-二酮)、季戊四醇(PE)和其他常用热稳定剂结合使用对聚氯乙烯关键性能(包括热稳定性、塑化和机械强度)的协同作用。实验结果表明,加入 RE-LDHs、β-二酮和 PE 后,聚氯乙烯的热稳定性显著提高。这种增强归因于 RE-LDHs 能够有效阻碍聚氯乙烯基质内的降解反应,从而提高其降解活化能和整体稳定性。此外,RE-LDHs 的加入还大大改善了聚氯乙烯的塑化和机械性能,使其适用于各种不同的应用领域。虽然 Zn-La-LDHs 和 Zn-Al-La-LDHs 都具有良好的热稳定性,但 Zn-La-LDHs 的性能略逊于 Zn-Al-La-LDHs。这种区别强调了在配制聚氯乙烯稳定剂体系时考虑每种 LDHs 化合物具体特性的重要性。此外,本研究还强调了 RE-LDHs 作为传统 PVC 稳定剂的环保型替代品的潜力,为开发可持续稳定剂配方提供了机会,从而解决了与传统稳定剂相关的环境问题。总之,RE-LDHs 的合成和应用代表了聚氯乙烯稳定化技术的重大进步,为提高聚氯乙烯基材料的性能和使用寿命提供了一种可行且具有环保意识的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Preparation of rare-earth LDHs stabilizers and their effects on the thermal stability of poly(vinyl chloride)

Preparation of rare-earth LDHs stabilizers and their effects on the thermal stability of poly(vinyl chloride)

This study delves into the exploration of zinc lanthanum layered double hydroxides (Zn–La-LDHs) and zinc aluminum lanthanum layered double hydroxides (Zn–Al–La-LDHs) as potential thermal stabilizers for poly(vinyl chloride) (PVC). The investigation aims to elucidate the synergistic effects of the above rare-earth (RE) LDHs in combination with dibenzoylmethane (β-diketone), pentaerythritol (PE), and other commonly employed heat stabilizers on PVC’s crucial properties, including thermal stability, plasticization, and mechanical strength. The experimental findings demonstrated notable enhancements in PVC’s thermal stability upon incorporation of RE-LDHs, β-diketone, and PE. This enhancement is attributed to the ability of RE-LDHs to effectively hinder degradation reactions within the PVC matrix, thereby increasing its degradation activation energy and overall stability. Moreover, the integration of RE-LDHs contributes significantly to improving PVC’s plasticization and mechanical properties, rendering it suitable for a diverse range of applications. While both Zn–La-LDHs and Zn–Al–La-LDHs exhibited good thermal stability, Zn–La-LDHs demonstrated slightly inferior performance compared to Zn–Al–La-LDHs. This distinction underscores the importance of considering the specific characteristics of each LDHs compound when formulating PVC stabilizer systems. Furthermore, this study highlights the potential of RE-LDHs as eco-friendly alternatives to traditional PVC stabilizers, offering opportunities to develop sustainable stabilizer formulations that address environmental concerns associated with conventional stabilizers. In conclusion, the synthesis and application of RE-LDHs represent a significant advancement in PVC stabilization technology, providing a viable and environmentally conscious approach to enhancing the performance and longevity of PVC-based materials.

Graphical abstract

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来源期刊
Iranian Polymer Journal
Iranian Polymer Journal 化学-高分子科学
CiteScore
4.90
自引率
9.70%
发文量
107
审稿时长
2.8 months
期刊介绍: Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.
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