A double encapsulation strategy for enhancing the comprehensive performance of PO cable materials

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2024-11-21 DOI:10.1016/j.polymdegradstab.2024.111096

Fuhao Yu, Pengfei Jia, Songyang Yu, Bibo Wang, Lei Song, Yuan Hu

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引用次数: 0

Abstract

Traditional polyolefin (PO) flame-retardant cable materials face challenges such as low flame-retardant efficiency and poor mechanical properties, particularly when environmentally friendly magnesium hydroxide (MH) is added. Herein, this work presents a novel approach to enhancing flame-retardant PO cable materials through a dual encapsulation strategy for MH. The double-encapsulated MH (HZM) was synthesized by depositing zinc hydroxy stannate, followed by microencapsulation using supramolecular polyphosphazene compounds. The PO composites achieved a V-0 rating with the addition of 56 wt% HZM, whereas the PO materials received no rating with the same loading of pure MH. Combined with the dual advantage of ZHS and supramolecular layer, the peak heat release rate and total heat release of PO-HZM decreased by 71.5% and 36%, respectively. HZM also exhibited outstanding smoke suppression (total smoke, CO₂, and CO) of PO composites. Furthermore, compared to PO-MH, the mechanical properties of PO-HZM had been strengthened because of the enhanced compatibility between HZM and PO matrix. Therefore, the double encapsulation of MH offers an effective strategy for developing revolutionary PO cable materials with enhanced comprehensive performance.

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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.