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通过一种新型分散分布模式实现膨胀型阻燃剂/玻璃纤维增强聚丙烯的机械、阻燃和介电性能

Mechanical, Flame-Retardant and Dielectric Properties of Intumescent Flame Retardant/Glass Fiber-Reinforced Polypropylene through a Novel Dispersed Distribution Mode.

作者信息

Li Jingwen, Sun Yiliang, Zhang Boming, Qi Guocheng

机构信息

School of Materials Science and Engineering, Beihang University, Beijing 100191, China.

Department of Mechanics, Beijing Jiaotong University, Beijing 100044, China.

出版信息

Polymers (Basel). 2024 May 9;16(10):1341. doi: 10.3390/polym16101341.

DOI:10.3390/polym16101341
PMID:38794533
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11125219/
Abstract

The application of continuous glass fiber-reinforced polypropylene thermoplastic composites (GF/PP) is limited due to the inadequate flame retardancy of the polypropylene (PP) matrix. Apart from altering the composition of the flame retardants, the distribution modes of flame retardants also impact material performance. In this study, an alternative approach involving non-uniform distribution is proposed, namely, dispersed distribution, in which non-flame-retardant-content layers (NFRLs) and/or low-flame-retardant-content layers (LFRLs) are dispersed among high-flame-retardant-content layers (HFRLs). The mechanical, flame retardant and dielectric properties of GF/PP with intumescent flame retardant (IFR/GF/PP) are investigated comparatively under uniform, gradient, and dispersed distributions of the flame retardants. The results demonstrate that non-uniform distribution exhibits superior flame retardant performance compared to uniform distribution. Dispersed distribution enables IFR/GF/PP to attain enhanced mechanical properties and reduced dielectric constants while maintaining excellent flame-retardant properties.

摘要

由于聚丙烯（PP）基体的阻燃性不足，连续玻璃纤维增强聚丙烯热塑性复合材料（GF/PP）的应用受到限制。除了改变阻燃剂的成分外，阻燃剂的分布方式也会影响材料性能。在本研究中，提出了一种涉及非均匀分布的替代方法，即分散分布，其中非阻燃剂含量层（NFRLs）和/或低阻燃剂含量层（LFRLs）分散在高阻燃剂含量层（HFRLs）之间。在阻燃剂均匀、梯度和分散分布的情况下，对膨胀型阻燃剂增强的GF/PP（IFR/GF/PP）的力学、阻燃和介电性能进行了比较研究。结果表明，与均匀分布相比，非均匀分布具有更好的阻燃性能。分散分布使IFR/GF/PP在保持优异阻燃性能的同时，能够获得增强的力学性能和降低的介电常数。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dcf54126a3ed/polymers-16-01341-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/b4385e2e48fb/polymers-16-01341-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/098d3a6f50aa/polymers-16-01341-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dcaadcf9b2a3/polymers-16-01341-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/9fe1e64c26cc/polymers-16-01341-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/b58a93414bc0/polymers-16-01341-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dc2555602157/polymers-16-01341-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/198b01297195/polymers-16-01341-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/3dd852837818/polymers-16-01341-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/3389468f0edf/polymers-16-01341-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dcf54126a3ed/polymers-16-01341-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/b4385e2e48fb/polymers-16-01341-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/e5a2bee02110/polymers-16-01341-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/114ed718aeb6/polymers-16-01341-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/098d3a6f50aa/polymers-16-01341-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dcaadcf9b2a3/polymers-16-01341-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/9fe1e64c26cc/polymers-16-01341-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/b58a93414bc0/polymers-16-01341-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dc2555602157/polymers-16-01341-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/198b01297195/polymers-16-01341-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/3dd852837818/polymers-16-01341-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/3389468f0edf/polymers-16-01341-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a43f/11125219/dcf54126a3ed/polymers-16-01341-g012.jpg

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