Ti3C2Tx/layered double hydroxide hybrid system decorated with iron-loaded polydopamine as a hydrophobic flame retardant for reducing the fire hazard of ethylene-vinyl acetate

IF 6.3 2区化学 Q1 POLYMER SCIENCE Polymer Degradation and Stability Pub Date : 2025-03-01 DOI:10.1016/j.polymdegradstab.2025.111297

Weidou Li , Yuwei Zhou , Zihan Zeng , Yile Ding , Xinyang Wu , Lei Wang , Wufei Tang , Qi Zhu , Jiayao Zhou , Sheng Xu

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引用次数: 0

Abstract

In recent years, MXene (Ti₃C₂Tx) has been extensively studied and used in polymer composites. However, MXene easily agglomerates in polymeric materials and has significant limitations in compatibility with hydrophobic polymers, resulting in the impairment of their mechanical properties and greatly hindering the improvement of their flame retardant properties. In this study, in order to improve the interfacial compatibility of the flame retardant with EVA, we prepared a Ti₃C₂Tx/MgAl LDH/PDA-Fe composite flame retardant by loading iron-loaded polydopamine (PDA-Fe) on the surface of Ti₃C₂Tx/layered double hydroxide (MgAl LDH) using polydopamine as an adhesive. Due to the strong adhesion of PDA, the interfacial compatibility between the flame retardant and EVA was greatly improved. And the hydrophobicity of Ti₃C₂Tx/MgAl LDH/PDA-Fe was greatly enhanced with a water contact angle value of 88.6°, which further enhanced the flame retardant properties of the EVA composites. The peak heat release rate of the EVA composites with the addition of 5 wt% Ti₃C₂Tx/MgAl LDH/PDA-Fe was 659.7 kW·m⁻², which represented a 29.1 % decrease compared to that of Neat EVA. In addition, the MgAl LDH inhibited the accumulation of Ti₃C₂Tx in EVA, and their synergistic effect improved the fire safety of EVA composites. Thus, this study provides a new paradigm for the preparation of hydrophobic flame retardants capable of improving interfacial compatibility with EVA, which has a promising application.

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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.