一种环保的PVA/XG/AP纳米复合多功能木材屏蔽材料，具有高阻燃性和优异的隔热性能

IF 7.4 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2025-09-20 DOI:10.1016/j.polymdegradstab.2025.111684

Hui Ren, Shun-Zhi Zhou, Tian Yu, Meng Jin, Jia-Rong Chen, Bin Wu, Zhong-Xiang Tang, Ning Ma, Fang-Chang Tsai

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引用次数: 0

摘要

传统的木材阻燃方法使用有机试剂和卤素，对人体健康和环境有害。为此，研制了一种以黄原胶（XG）、植酸（PA）和磷酸铝（AP）为基材的PVA（聚乙烯醇）涂料（PX-AP），以提高木材的阻燃性、抗菌性和绝热性。XG提高了粘度，稳定了AP悬浮液，促进了碳的形成，并与AP协同形成致密的炭层。PX-AP达到UL-94 V-0额定值，LOI为60%；TGA结果表明，与天然木材相比，其残余碳含量增加了102.8%；锥形量热计测试表明，总放热率（THR）下降36.9%，峰值放热率（pHRR）下降43.7%；在绝热试验中，最大背面燃烧温度下降了44.1%。生物无机碳装甲增强了木材的防火性和结构完整性，使疏散更加安全。它还具有很强的附着力，满足木材应用的多样化需求。

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An eco-friendly PVA/XG/AP nanocomposite multifunctional shield for wood with high flame retardancy and superior thermal insulation

Traditional flame-retardant methods for wood, which employ organic reagents and halogens, are detrimental to human health and the environment. Therefore, a PVA (Polyvinyl alcohol)-based coating (PX-AP) incorporating xanthan gum (XG), phytic acid (PA), and aluminum phosphate (AP) was developed to enhance flame retardancy, antibacterial performance, and thermal insulation of wood. XG improves viscosity, stabilizes AP suspension, facilitates carbon formation, and collaborates with AP to form a dense char layer. PX-AP achieves UL-94 V-0 rating with LOI > 60 %; TGA results show residual carbon content increases by 102.8 % compared to natural wood; cone calorimeter tests indicate Total heat release (THR) decreases by 36.9 % and Peak heat release rate (pHRR) by 43.7 %; and the maximum backside combustion temperature drops by 44.1 % in thermal insulation tests. Bio-inorganic carbon armor enhances fire-resistance & structural integrity of wood for safer evacuation. It also exhibits strong adhesion, meeting diversified demands for wood applications.

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来源期刊

Polymer Degradation and Stability 化学-高分子科学

CiteScore

10.10

自引率

10.20%

发文量

325

审稿时长

23 days

期刊介绍： Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal. However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.