用于高性能应用的不同阻燃剂改性环氧-氨基甲酸酯泡沫的研究

Investigations on Epoxy-Carbamate Foams Modified with Different Flame Retardants for High-Performance Applications.

作者信息

Kaysser Simon T, Bethke Christian, Romero Isabel Fernandez, Wei Angeline Wo Weng, Keun Christian A, Ruckdäschel Holger, Altstädt Volker

机构信息

Department of Polymer Engineering, University of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany.

CompriseTec GmbH, Rödingsmarkt 20, 20459 Hamburg, Germany.

出版信息

Polymers (Basel). 2021 Nov 11;13(22):3893. doi: 10.3390/polym13223893.

DOI:10.3390/polym13223893

PMID:34833192

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8623778/

Abstract

In transport sectors such as aviation, automotive and railway, materials combining a high lightweight potential with high flame retardant properties are in demand. Polymeric foams are suitable materials as they are lightweight, but often have high flammability. This study focuses on the influence of different flame retardants on the burning behavior of Novolac based epoxy foams using Isophorone Diamine carbamate (B-IPDA) as dual functional curing and blowing agent. The flame retardant properties and possible modifications of these foams are systematically investigated. Multiple flame retardants, representing different flame retardant mechanisms, are used and the effects on the burning behavior as well as mechanical and thermal properties are evaluated. Ammonium polyphosphate (APP), used with a filler degree of 20 wt.% or higher, functions as the best performing flame retardant in this study.

摘要

在航空、汽车和铁路等运输领域，需要兼具高轻量化潜力和高阻燃性能的材料。聚合物泡沫是合适的材料，因为它们重量轻，但通常具有高易燃性。本研究聚焦于不同阻燃剂对以异佛尔酮二胺氨基甲酸酯（B-IPDA）作为双功能固化剂和发泡剂的酚醛环氧树脂泡沫燃烧行为的影响。系统研究了这些泡沫的阻燃性能及可能的改性。使用了多种代表不同阻燃机理的阻燃剂，并评估了其对燃烧行为以及机械和热性能的影响。在本研究中，添加量为20 wt.% 或更高的聚磷酸铵（APP）是性能最佳的阻燃剂。