摘要
将磷杂菲/三嗪双基协同阻燃剂(TGD)、甲基膦酸二甲酯(DMMP)、可膨胀石墨(EG)及氢氧化铝(ATH)复配添加到天然橡胶(NR)中制备阻燃NR硫化胶,考察了TGD/DMMP/EG/ATH复配阻燃剂对NR硫化胶的阻燃性能、热稳定性及物理机械性能的影响。结果表明,TGD/DMMP/EG/ATH复配阻燃剂可有效提升NR硫化胶的阻燃性能和热稳定性,并降低燃烧过程中的热释放速率。当TGD/DMMP/EG/ATH复配阻燃剂的用量为60份(质量)时,NR硫化胶的极限氧指数可达28.4%,残炭质量分数可达25.61%,热释放速率可降低95%,总热释放量可降低21%。TGD/DMMP/EG/ATH复配阻燃剂对NR硫化胶的物理机械性能影响不大。
The flame retardant natural rubber(NR)vulcanizates were prepared by adding phosphoxanthrene/triazine bibase synergic flame retardant(TGD),dimethyl methyl phosphonate(DMMP),expandable graphite(EG)and aluminum hydroxide(ATH)to NR.The effects of TGD/DMMP/EG/ATH compound flame retardants on the flame retardancy,thermal stability and physical and mechanical pro-perties of NR vulcanizate were investigated.The results showed that TGD/DMMP/EG/ATH compound flame retardant could effectively improve the flame retardancy and thermal stability of NR vulcanizates,and reduce the heat release rate during combustion.When the amount of TGD/DMMP/EG/ATH compound flame retardant was 60 phr(mass),the limiting oxygen index of NR vulcanizates could reach 28.4%,the mass fraction of carbon residue could reach 25.61%,the heat release rate and total heat release amount of NR vulcanizates could be reduced by 95%and 21%.TGD/DMMP/EG/ATH compound flame retardant had little effect on the physical and mechanical properties of NR vulcanizates.
作者
王健
王龙
张政
贾宇辉
沈瑞冰
郝明正
梁玉蓉
WANG Jian;WANG Long;ZHANG Zheng;JIA Yu-hui;SHEN Rui-bing;HAO Ming-zheng;LIANG Yu-rong(School of Materials Science and Engineering,North University of China,Taiyuan 030051,China;Department of Materials Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China)
出处
《合成橡胶工业》
CAS
北大核心
2023年第2期88-93,共6页
China Synthetic Rubber Industry
关键词
天然橡胶
磷杂菲/三嗪双基协同阻燃剂
复配阻燃剂
阻燃性能
热稳定性
物理机械性能
natural rubber
phosphozapine/triazine diphenyl synergistic flame retardant
compound flame retardant
flame retardant performance
thermal stability
physical and mechanical property
