改性碳纳米管在矿用阻燃输送带覆盖胶中的应用

Application of Modified Carbon Nanotube in Cover Compound of Flame Retardant Conveyor Belt for Mining Applications

试验研究改性碳纳米管在矿用阻燃输送带覆盖胶胶料中的应用,并与炭黑进行对比。结果表明:随着改性碳纳米管用量的增大,胶料的t10和t90基本不变;硫化胶的邵尔A型硬度和定伸应力呈增大趋势,拉断伸长率变化不大,耐磨性能、导静电性能、导热性能和阻燃性能总体提高;碳纳米管用量达到3份时,相对于8份炭黑N220,矿用阻燃输送带ST3500工程正硫化时间缩短2min,生产效率提高,生产成本降低。

The application of modified carbon nanotube in the cover compound of flame retardant conveyor belt for mining applications was experimentally investigated,and compared with carbon black N220. The results showed that,as the addition level of modified carbon nanotube increased,the tl0 and t90 changed little, the Shore A hardness and modulus tended to increase, the elongation at break changed little,and the abrasion resistance, electrostatic property and flame retardant property were improved. With 3 phr carbon nanotube, the optimum curing time of the compound was shortened by 2 min compared to that with 8 phr carbon black N220,and thus production efficiency was enhanced and production cost was reduced.