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功能化碳纳米管在硫醇-烯纳米复合材料中的阻燃性及分散性

Flame Retardancy and Dispersion of Functionalized Carbon Nanotubes in Thiol-Ene Nanocomposites.

作者信息

Wang Jiangbo

机构信息

School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China.

出版信息

Polymers (Basel). 2021 Sep 28;13(19):3308. doi: 10.3390/polym13193308.

DOI:10.3390/polym13193308
PMID:34641124
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8512449/
Abstract

A polysilicone flame retardant (PA) was synthesized and covalently grafted onto the surface of carbon nanotubes (CNTs) via amide linkages to obtain modified CNTs (CNTs-PA). The grafting reaction was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectrometer (XPS), Transmission electron microscopy (TEM) and Thermogravimetric analysis (TGA), and the resultant CNTs-PA was soluble and stable in polar solvents Chloroform. Thiol-ene (TE)/CNTs-PA nanocomposites were prepared via Ultraviolet curing. The flame retardancy of thiol-ene nanocomposites was improved, especially for the heat release rate. Moreover, the results from Scanning electron microscopy (SEM) and Dynamic mechanical thermal analysis (DMTA) showed that the CNTs-PA improved the dispersion of CNTs in thiol-ene and enhanced the interfacial interaction between CNTs-PA and thiol-ene matrix.

摘要

合成了一种聚硅氧烷阻燃剂（PA），并通过酰胺键将其共价接枝到碳纳米管（CNT）表面，以获得改性碳纳米管（CNTs-PA）。通过傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）、透射电子显微镜（TEM）和热重分析（TGA）对接枝反应进行了表征，所得的CNTs-PA在极性溶剂氯仿中可溶且稳定。通过紫外线固化制备了硫醇-烯（TE）/CNTs-PA纳米复合材料。硫醇-烯纳米复合材料的阻燃性能得到了改善，尤其是热释放速率。此外，扫描电子显微镜（SEM）和动态热机械分析（DMTA）的结果表明，CNTs-PA改善了碳纳米管在硫醇-烯中的分散性，并增强了CNTs-PA与硫醇-烯基体之间的界面相互作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/22f8ffd1a944/polymers-13-03308-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/a7092683327d/polymers-13-03308-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/a3d41d6e5af9/polymers-13-03308-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/c313fe3307b3/polymers-13-03308-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/9898edb4ea61/polymers-13-03308-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b7a4ce44a140/polymers-13-03308-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/fa7411d356d0/polymers-13-03308-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/7ab1b6e1199d/polymers-13-03308-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/73b6c877aeb2/polymers-13-03308-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b3b225f9fe27/polymers-13-03308-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b9d69bd99321/polymers-13-03308-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/83a2567d6fe4/polymers-13-03308-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/22f8ffd1a944/polymers-13-03308-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/a7092683327d/polymers-13-03308-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/a3d41d6e5af9/polymers-13-03308-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/c313fe3307b3/polymers-13-03308-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/9898edb4ea61/polymers-13-03308-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b7a4ce44a140/polymers-13-03308-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/fa7411d356d0/polymers-13-03308-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/7ab1b6e1199d/polymers-13-03308-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/73b6c877aeb2/polymers-13-03308-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b3b225f9fe27/polymers-13-03308-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/b9d69bd99321/polymers-13-03308-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/83a2567d6fe4/polymers-13-03308-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e352/8512449/22f8ffd1a944/polymers-13-03308-g009.jpg

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