Mechanically robust, thermally conductive and flame retardant polydimethylsiloxane composites decorated with a nitrogen/phosphorus-functionalized carbon nanotubes-montmorillonite interconnected network

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2025-01-19 DOI:10.1016/j.polymdegradstab.2025.111206

Shuang Liu , Song Liu , Ziming Feng , Linchen Hu , Shaohua Zeng , Jun Guan , Pengpeng Chen , Ying Xu , Hang Liu , Wangyan Nie , Yifeng Zhou

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引用次数: 0

Abstract

Polymer-matrix composites with superior fire safety, thermal conductivity, and mechanical performance are increasingly in demand due to the rapid development of advanced electronic devices. Herein, a nitrogen/phosphorus-functionalized carbon nanotubes-montmorillonite (CNTs-N,P-Mt) hybrid was constructed and self-assembled in polydimethylsiloxane (PDMS) to form a three-dimensional (3D) interconnected network structure, based on the geometrical constraint of sheet-like Mt. The 3D CNTs-N,P-Mt network enabled the PDMS-based composite with enhanced mechanical properties, thermal conductivity and flame retardancy simultaneously. When 10.0 wt.% CNTs-N,P-Mt hybrids were incorporated, tensile strength and thermal conductivity of the obtained PDMS-based composites were 225.0 % and 70.4 % higher than those of pure PDMS; meanwhile, such composite exhibited the smoke production rate of 0.04 m²▪s⁻¹ and peak total smoke production of 3.51 m², which were 48.1 % and 30.3 % lower than those of pure PDMS (suggesting superb smoke suppression properties). This work provides valuable insight into developing multifunctional polymer-based packaging materials for application in advanced electronic devices.

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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.