文献类型：期刊文献

英文题名：Preparation of Flame-Retardant Rigid Polyurethane Foams by Combining Modified Melamine-Formaldehyde Resin and Phosphorus Flame Retardants

作者：Zhu, Heng[1];Xu, Shiai[1,2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat,Key Lab Ultrafin, Shanghai 200237, Peoples R China;[2]Qinghai Univ, Sch Chem Engn, Xining 810016, Peoples R China

年份：2020

卷号：5

期号：17

起止页码：9658

外文期刊名：ACS OMEGA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000530659700005)】；

基金：This research is financially supported by the National Natural Science Foundation of China (21764011), the Foundation from Qinghai Science and Technology Department (2020-HZ-808), the Thousand Talents Program of Qinghai Province, and the Kunlun Scholar Award Program of Qinghai Province.

语种：英文

摘要：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/CO2 weight ratio during the combustion of RPUFs.