• 文献标题:   Effects of graphene nanosheets decorated by cerium stannate on the enhancement of flame retardancy and mechanical performances of flexible polyurethane foam composites
  • 文献类型:   Article
  • 作  者:   YU XL, WANG BB, JIA PF, YIN ZT, TANG G, ZHOU XD, LU TT, GUO LY, SONG L, HU Y
  • 作者关键词:   cerium stannate, flame retardancy, flexible polyurethane foam, mechanical propertie, smoke suppression
  • 出版物名称:   POLYMERS FOR ADVANCED TECHNOLOGIES
  • ISSN:   1042-7147 EI 1099-1581
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1002/pat.5516 EA SEP 2021
  • 出版年:   2022

▎ 摘  要

As one of the most used polyurethane, flexible polyurethane foam (FPUF) still confronted highly flammable problems. However, current flame retardant employed in FPUF deteriorated the other utilization performances, such as mechanical properties. In this work, cerium stannate decorated graphene nanosheets (GNS@Ce2Sn2O7, GCSO) was prepared to fabricate flame retardant FPUF composites. Compared to pure FPUF, the tensile strength and average compression strength of FPUF composites accomplished 100 and 412% increase, respectively, while the average rebound was basically maintained. In contrast to pure FPUF, total heat release and total smoke production of FPUF composites displayed a 42.2 and 75.1% reduction, respectively. Furthermore, the released toxic gases (such as, CO2, CO and NOx) during combustion were greatly decreased. These results were due to the catalytic and barrier effect of GCSO promoting the formation a high-quality char residue with a compact, intact and dense morphology. Therefore, it provides a facile method to fabricate FPUF composites with advanced comprehensive performance for the furniture field.