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Facile Preparation of Composite Flame Retardantbased on Conjugated Microporous Polymer Hollow Spheres by Shujuan Wu; Zhaoqi Zhu; Chao Liu; Yanning Su; Fei Wang; Wei Bai; Hanxue Sun; Weidong Liang; An Li is a Chemistry article available to read on EtoBox.

What is Facile Preparation of Composite Flame Retardantbased on Conjugated Microporous Polymer Hollow Spheres about?

The development of functional materials with better flame-retardant and thermal insulation properties has attracted considerable attention for energy storage applications in modern society. Here, we describe a facile approach for the preparation of conjugated microporous polymer hollow spheres (CMP-HSs) by using SiO nanoparticles as a template via the Sonogashira-Hagihara cross-coupling reaction. The as-synthesized CMP-HSs have good thermal stability with a thermal decomposition temperature of up to 281 °C, high porosity (the BET specific surface area is measured to be approximately 666 m g) along with lipophilic and hydrophobic characteristics. To further improve their flame retardancy, CMP-HSs were treated with dimethyl phosphonate (DMMP) though an immersion method to prepare the CMP-HSs composite (CMP-HSs-DMMP) flame-retardants. By introducing CMP-HSs-DMMP into the epoxy resin (EP) matrix, the as-prepared EP composites showed excellent flame-retardant properties, e.g., the peak heat release rate (pHRR) and total heat release (THR) value of EP composites containing only 0.2% CMP-HSs-DMMP flame-retardant were 650.9 kW m and 79.4 MJ m respectively, in the range of 0 °C - 650 °C, wh

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Author

Shujuan Wu; Zhaoqi Zhu; Chao Liu; Yanning Su; Fei Wang; Wei Bai; Hanxue Sun; Weidong Liang; An Li

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Chemistry (Physical Sciences)