阻燃聚乙烯醇:添加剂及工艺研究进展

IF 11.1 2区化学 Q1 POLYMER SCIENCE

Polymer Reviews Pub Date : 2022-05-18 DOI:10.1080/15583724.2022.2076694

Xingguo Wang, Yuchun Li, D. Meng, X. Gu, Jun Sun, Yuan Hu, S. Bourbigot, Sheng Zhang

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引用次数: 12

摘要

摘要生物基聚乙烯醇(PVA)由于其水溶性、可塑性和可降解性，在过去的十年里，随着学术和工业研究领域的大幅发展，其产量迅速增长。然而，PVA由于其固有的碳、氢、氧原子组成的大分子结构，具有高度可燃性，极限氧指数仅为19%。对PVA的阻燃需求迅速增加，目前通过化学接枝、物理共混和涂覆等方法引入阻燃剂，一般都能满足阻燃需求。综述了阻燃剂在聚乙烯醇材料中的应用及其对聚乙烯醇材料可燃性和力学性能的影响。从膜类、气凝胶类、纤维类、泡沫类、体状复合材料类等聚乙烯醇类产品入手，介绍了阻燃添加剂的种类及其应用技术。薄膜由于其广泛的应用，在阻燃聚乙烯醇材料的研究中占据了主导地位。对其防火性能和阻燃机理进行了比较和讨论。此外，还对聚乙烯醇作为助剂在某些高分子阻燃配方中的应用进行了讨论和评述。

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A Review on Flame-Retardant Polyvinyl Alcohol: Additives and Technologies

Abstract The output of bio-based polyvinyl alcohol (PVA) has been growing rapidly with a substantial increase of developments both in academic and industrial research areas in the past decade, which is due to its water solubility, plasticity, and degradability. However, PVA is highly flammable with a limiting oxygen index of only 19% owning to its inherent macromolecular structure composed of carbon, hydrogen, and oxygen atoms. The demand for flame retardancy of PVA has been increased rapidly and is generally satisfied by introducing flame retardants via chemical grafting, physical blending, and coating. This review summarizes the flame retardants applied in PVA and their influence on the flammability and mechanical properties of PVA materials. The type of flame retardant additives and their application technologies for various PVA products are presented in terms of various PVA products, such as films, aerogel, fibers, foams, and bulk composites. The films dominate the whole research of flame retardant PVA materials owing to their widespread application. The fire performance and flame retardant mechanism are compared and discussed. Additionally, PVA acted as an assistant agent in some polymeric flame-retardant formulations is also discussed and reviewed.

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来源期刊

Polymer Reviews 工程技术-高分子科学

CiteScore

24.80

自引率

0.80%

发文量

审稿时长

6 months

期刊介绍： Polymer Reviews is a reputable publication that focuses on timely issues within the field of macromolecular science and engineering. The journal features high-quality reviews that have been specifically curated by experts in the field. Topics of particular importance include biomedical applications, organic electronics and photonics, nanostructures, micro- and nano-fabrication, biological molecules (such as DNA, proteins, and carbohydrates), polymers for renewable energy and environmental applications, and interdisciplinary intersections involving polymers. The articles in Polymer Reviews fall into two main categories. Some articles offer comprehensive and expansive overviews of a particular subject, while others zero in on the author's own research and situate it within the broader scientific landscape. In both types of articles, the aim is to provide readers with valuable insights and advancements in the field of macromolecular science and engineering.