摘要
用极限氧指数(LOI)、热重(TGA)和差示扫描量热(DSC)等方法研究了乙烯-丙烯酸丁酯共聚物(E-BA)/硼酸锌(ZB)复合材料的阻燃性能和热降解行为及ZB对EBA力学性能和熔体流动速率的影响。实验结果表明ZB的引入提高了EBA在高温下的热稳定性,恶化了材料的力学性能和加工性能,添加60%材料的LOI可达26.8%,主要通过物理方式在凝缩相和气相中发挥阻燃作用。
The effects of zinc borate （ZB） on the flammability and mechanical property of ethylene-butyl acrylate copolymer （EBA）were investigated by using mechanical testing, limiting oxygen index （LOI） method. The thermal degradation behaviour of the EBA/ZB composite was studied using thermogravimetric analysis（TG） and differential scanning calorimetry（DSC）. ZB deteriorated the mechanical and processing properties of EBA. The LOI of EBA was enhanced to 26.8 with 60% total loading of ZB. The flame retardant mechanism of ZB for EBA was in both the gaseous and condensed phases.
出处
《胶体与聚合物》
2007年第3期21-23,共3页
Chinese Journal of Colloid & Polymer
关键词
乙烯-丙烯酸丁酯共聚物
硼酸锌
阻燃
热降解
Ethylene-butyl acrylate copolymer
Zinc borate
Flame retardant
Thermal degradation
