Construction of a Novel Halogen-Free and Phosphorus-Free and Synergistic Flame Retardant System with Low Addition in Simultaneously Improving the Flame Retardancy, Water Resistance and Mechanical Properties for Silicone Rubber
APPLIED CLAY SCIENCE(2023)
摘要
To solve the bottleneck problems of flame-retarding silicone rubber (SR), a halogen-free, phosphorus-free and synergistic flame retardant system was prepared by introducing hydrophobic natural product (Gum Arabic, GA) intercalated layered double hydroxide (H-GA@LDH) and multi-walled carbon nanotubes (MWCNT). Promi-nently, when the total amount of flame retardant is only 7 phr, SR/H-GA@LDH6.0/MWCNT1.0 can reach the limiting oxygen index (LOI) value of 29.4% and UL-94 V-0 rating with the flame retardant index of 2.06. And the LOI value of SR/H-GA@LDH6.0/MWCNT1.0 is decreased by only 1.3% compared with that of SR by 6.9% after water resistance tests. In addition, the peak heat release rate (pHRR) and total heat release rate (THR) of SR composites are decreased by 22.14% and 12.43%. Compared with pure SR, the tensile strength and elongation at break of SR-8 are increased by 115.63% and 23.85%. In this condition, an excellent balance for simultaneously improving flame retardancy, water resistance and mechanical properties has been achieved. Therefore, this paper has provided an effective strategy with halogen-free and phosphorus-free materials for achieving the goal of flame-retarding SR with high performance and breaking the limitation of traditional contaminative and toxic phosphorus-based or halogen-based flame retardants.
更多查看译文
关键词
Gum Arabic,Phosphorus -free,Low addition,Synergistic flame retardant,Silicone rubber
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要