通过结合改性三聚氰胺 - 甲醛树脂和磷系阻燃剂制备阻燃硬质聚氨酯泡沫

Preparation of Flame-Retardant Rigid Polyurethane Foams by Combining Modified Melamine-Formaldehyde Resin and Phosphorus Flame Retardants.

作者信息

Zhu Heng, Xu Shiai

机构信息

Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.

School of Chemical Engineering, Qinghai University, Xining 810016, China.

出版信息

ACS Omega. 2020 Apr 22;5(17):9658-9667. doi: 10.1021/acsomega.9b03659. eCollection 2020 May 5.

DOI:10.1021/acsomega.9b03659

PMID:32391451

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7203688/

Abstract

In this work, ethylene glycol-modified melamine-formaldehyde resin (EMF) was synthesized from ethylene glycol, paraformaldehyde, and melamine, and then rigid polyurethane foams (RPUFs) were prepared using EMF, polyols and polyisocyanate. The effects of ammonium polyphosphate (APP) and dimethyl methylphosphonate (DMMP) on the flame retardancy, mechanical properties, thermal stability, and morphology of the prepared RPUFs were studied. It is shown that the flame-retardant performance of EMF-filled RPUFs can be enhanced by the addition of APP and DMMP. Thus, APP and DMMP can synergistically improve the flame retardancy of RPUFs. APP has good smoke suppression, while DMMP can increase the total smoke production and CO/CO weight ratio during the combustion of RPUFs.

摘要

在本工作中，由乙二醇、多聚甲醛和三聚氰胺合成了乙二醇改性三聚氰胺 - 甲醛树脂（EMF），然后使用EMF、多元醇和多异氰酸酯制备了硬质聚氨酯泡沫（RPUF）。研究了聚磷酸铵（APP）和甲基膦酸二甲酯（DMMP）对所制备RPUF的阻燃性、力学性能、热稳定性和形态的影响。结果表明，添加APP和DMMP可提高填充EMF的RPUF的阻燃性能。因此，APP和DMMP可协同提高RPUF的阻燃性。APP具有良好的抑烟效果，而DMMP会增加RPUF燃烧过程中的总产烟量和CO/CO₂重量比。